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Aruba · Caribbean

San Nicolas weather & best time to visit

Sun, sea & sand

San Nicolas at a glance

Best time
Jan – Sep
Warmest month
Sep · 31°
Warmest sea
Oct · 28.9°
Sunshine a year
2,970 h
Rain a year
559 mm
Climate
Tropical
Time zone
UTC−4
Elevation
14 m

Climate in San Nicolas

San Nicolas has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. September is the warmest month with average highs of 31 °C, while January is the coolest at 28 °C. With around 2,970 hours of sunshine a year, San Nicolas is sunny; July is the sunniest month with 9.1 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit San Nicolas

The best time to visit San Nicolas is from January to September. For a beach holiday – sea from 21 °C, warm and mostly dry – go from January to September. For sightseeing, day trips and hiking, conditions are most comfortable from January to February. The rainy season is from October to November; the wettest month is November with 139 mm.

San Nicolas through the seasons

How the weather changes over the seasons, with averages for each.

San Nicolas in the dry season

Dec – Sep

93

Excellent

  • 28–31 °C by day
  • Sea 27 °C
  • 8.4 h of sun a day
  • 76 rainy days in all

San Nicolas in the rainy season

Oct – Nov

73

Good

  • 29–30 °C by day
  • Sea 29 °C
  • 6.8 h of sun a day
  • 39 rainy days in all

Which month for what?

Beach & swimming

Jan – Sep

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Jan – Feb

15–28 °C and not too much rain

Rainy months

Oct – Nov

Rainy season or more than 12 rainy days

Find your perfect month

Tell us what you like and we rate every month in San Nicolas for you.

Swimming in the sea
Sunshine
Little rain

Your best months: February – April

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

73

Holiday weather in October

Good

Best time to visit: January – September

Keep in mindFrequent rain

A typical day in October

  1. Morning, 08:00: about 27°
  2. Midday, 13:00: about 30°
  3. Afternoon, 16:00: about 30°
  4. Evening, 20:00: about 28°
  5. Night, 23:00: about 27°

06:2918:21

Warm enough for a T-shirt in the evening.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 06:16–06:57 · evening 17:53–18:34
Blue hour
Morning 06:08–06:16 · evening 18:34–18:43

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in San Nicolas compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs stay at about 30° from start to end. The days get 0.3 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high30°30°
Night-time low26°26°
Sea29°29°
Daylight12.0 h11.7 h

What is the weather like in San Nicolas in October?

In October, San Nicolas is hot: daytime highs average 30 °C, and even at night it stays warm at around 26 °C. The sea averages 28.9 °C – lovely and warm for swimming. The sun shines for around 6.8 hours a day. It is the rainy season: rain falls on about 19 days, totalling 118 mm. On about 18 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, October is a good month for a holiday in San Nicolas.

More details for October

Daylight
11 h 52 min06:29 – 18:21
UV index
11 · extremeclear sky, noon (estimate)All months
Muggy days
31 daysdew point 18 °C or moreAll months
Wind
31 km/haverage daily peakAll months
Cloud cover
65 %on averageAll months
Hot days
18 days30 °C or moreAll months
Time zone
UTC−4offset from UTC

How the score comes together

  • Temperatureweight 35 %100 %
  • Seaweight 25 %100 %
  • Sunshineweight 20 %63 %
  • Few rainy daysweight 20 %0 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in October

  • Swimwear
  • Sunscreen
  • Sunglasses & sun hat
  • Light, breathable clothes
  • Water bottle – drink plenty
  • Insect repellent
  • Rain jacket or umbrella
  • Windproof jacket

Compare two months in San Nicolas

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

March has the better holiday weather in San Nicolas: score 99 against 73. In March, days are 1 °C cooler than in October. The sea is 3 °C cooler in March. March has 15 fewer rainy days. The sun shines 2 hours longer a day in March.

October vs March, San Nicolas
MonthOctoberMarch
Holiday weather score7399better
Daytime high30°29°
Night-time low26°25°
Sea28.9°26.2°
Sunshine6.8 h8.6 hbetter
Rainy days194better
Rainfall118 mm11 mmbetter
Muggy days3131

Based on the climate averages 1996–2025.

San Nicolas month by month

The typical weather for every month at a glance.

87January28° · Sea 26° · 8.1 h

In January, San Nicolas is hot: daytime highs average 28 °C, and even at night it stays warm at around 25 °C. The sea averages 26.4 °C – lovely and warm for swimming. The sun shines for around 8.1 hours a day. Rain is frequent, with about 11 rainy days and 33 mm in total. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 37 km/h. All in all, January is an excellent month for a holiday in San Nicolas.

San Nicolas in January
95February28° · Sea 26° · 8.4 h

In February, San Nicolas is hot: daytime highs average 28 °C, and even at night it stays warm at around 25 °C. The sea averages 26.1 °C – lovely and warm for swimming. The sun shines for around 8.4 hours a day. Rain falls on about 6 days, adding up to 17 mm. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 38 km/h. All in all, February is an excellent month for a holiday in San Nicolas.

San Nicolas in February
99March29° · Sea 26° · 8.6 h

In March, San Nicolas is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 26.2 °C – lovely and warm for swimming. The sun shines for around 8.6 hours a day. Rain is rare: about 4 days bring 11 mm in total. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 37 km/h. All in all, March is an excellent month for a holiday in San Nicolas.

San Nicolas in March
96April29° · Sea 27° · 8.1 h

In April, San Nicolas is hot: daytime highs average 29 °C, and even at night it stays warm at around 26 °C. The sea averages 26.5 °C – lovely and warm for swimming. The sun shines for around 8.1 hours a day. Rain is rare: about 5 days bring 19 mm in total. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 36 km/h. All in all, April is an excellent month for a holiday in San Nicolas.

San Nicolas in April
96May30° · Sea 27° · 8.1 h

In May, San Nicolas is hot: daytime highs average 30 °C, and even at night it stays warm at around 26 °C. The sea averages 27.2 °C – lovely and warm for swimming. The sun shines for around 8.1 hours a day. Rain falls on about 5 days, adding up to 25 mm. On about 12 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 37 km/h. All in all, May is an excellent month for a holiday in San Nicolas.

San Nicolas in May
98June30° · Sea 27° · 8.9 h

In June, San Nicolas is hot: daytime highs average 30 °C, and even at night it stays warm at around 26 °C. The sea averages 27.4 °C – lovely and warm for swimming. The sun shines for around 8.9 hours a day. Rain falls on about 6 days, adding up to 22 mm. On about 10 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 40 km/h. All in all, June is an excellent month for a holiday in San Nicolas.

San Nicolas in June
98July30° · Sea 27° · 9.1 h

In July, San Nicolas is hot: daytime highs average 30 °C, and even at night it stays warm at around 26 °C. The sea averages 27.4 °C – lovely and warm for swimming. With around 9.1 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 20 mm. On about 15 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 38 km/h. All in all, July is an excellent month for a holiday in San Nicolas.

San Nicolas in July
95August31° · Sea 28° · 9.1 h

In August, San Nicolas is hot: daytime highs average 31 °C, and even at night it stays warm at around 26 °C. The sea averages 28.1 °C – lovely and warm for swimming. With around 9.1 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 27 mm. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 37 km/h. All in all, August is an excellent month for a holiday in San Nicolas.

San Nicolas in August
87September31° · Sea 29° · 8.1 h

In September, San Nicolas is hot: daytime highs average 31 °C, and even at night it stays warm at around 27 °C. The sea averages 28.7 °C – lovely and warm for swimming. The sun shines for around 8.1 hours a day. Rain is frequent, with about 11 rainy days and 61 mm in total. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 33 km/h. All in all, September is an excellent month for a holiday in San Nicolas.

San Nicolas in September
73October30° · Sea 29° · 6.8 h

In October, San Nicolas is hot: daytime highs average 30 °C, and even at night it stays warm at around 26 °C. The sea averages 28.9 °C – lovely and warm for swimming. The sun shines for around 6.8 hours a day. It is the rainy season: rain falls on about 19 days, totalling 118 mm. On about 18 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, October is a good month for a holiday in San Nicolas.

San Nicolas in October
73November29° · Sea 28° · 6.8 h

In November, San Nicolas is hot: daytime highs average 29 °C, and even at night it stays warm at around 26 °C. The sea averages 28.4 °C – lovely and warm for swimming. The sun shines for around 6.8 hours a day. It is the rainy season: rain falls on about 20 days, totalling 139 mm. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, November is a good month for a holiday in San Nicolas.

San Nicolas in November
78December28° · Sea 27° · 7.5 h

In December, San Nicolas is hot: daytime highs average 28 °C, and even at night it stays warm at around 25 °C. The sea averages 27.4 °C – lovely and warm for swimming. The sun shines for around 7.5 hours a day. It rains often – on about 16 days, adding up to 68 mm. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 36 km/h. All in all, December is a good month for a holiday in San Nicolas.

San Nicolas in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in San Nicolas

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Hot 24° and more
  • muggy month (15+ muggy days)

HotOctober: nights around 26°. Hot nights: air conditioning makes sleeping much easier. Muggy on about 31 days (dew point 18 °C or more).

The coolest nights are in February (25°), the warmest in September (27°). Nights stay tropical all year (20 °C and more), so a room with air conditioning or at least a fan pays off. It is muggy (dew point 18 °C or more) all year, on about 365 days a year.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 30°Night 26°Sea 29°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan8728°25°26.4°8.1 h1133
FebruaryFeb9528°25°26.1°8.4 h617
MarchMar9929°25°26.2°8.6 h411
AprilApr9629°26°26.5°8.1 h519
MayMay9630°26°27.2°8.1 h525
JuneJun9830°26°27.4°8.9 h622
JulyJul9830°26°27.4°9.1 h620
AugustAug9531°26°28.1°9.1 h727
SeptemberSep8731°27°28.7°8.1 h1161
OctoberOct7330°26°28.9°6.8 h19118
NovemberNov7329°26°28.4°6.8 h20139
DecemberDec7828°25°27.4°7.5 h1668

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

12.44° N, 69.91° W · 14 m · America/Aruba

Swimming calendar

Sea temperature in San Nicolas

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October28.9°Cwarm

8 in 10 years: 28.2 – 29.5 °C

Swimming season: all year

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 28.9°8 in 10 years 28.2° – 29.5°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in San Nicolas ranges from 26.1 °C in February to 28.9 °C in October. At 20 °C and more, the sea is warm enough for swimming all year round.

The sea warms up slowly: it is warmest in October, while the air already peaks in September. The sea temperature varies from year to year: in October, eight out of ten years were between 28.2 and 29.5 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan26.4°25.9°27.0°warm
FebruaryFeb26.1°25.3°26.8°warm
MarchMar26.2°25.5°26.9°warm
AprilApr26.5°25.9°27.2°warm
MayMay27.2°26.5°28.0°warm
JuneJun27.4°26.8°28.0°warm
JulyJul27.4°26.9°28.3°warm
AugustAug28.1°27.5°28.6°warm
SeptemberSep28.7°28.2°29.3°warm
OctoberOct28.9°28.2°29.5°warm
NovemberNov28.4°27.8°29.1°warm
DecemberDec27.4°26.8°27.9°warm
Sunshine

Sunshine hours in San Nicolas

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,970 hours
Sunniest month
Jul · 9.1 h a day
Least sunshine
Oct · 6.8 h a day
OctoberSunshine 6.8 hDaylight 11.9 hShare of daylight 57 %
SunshineDaylight

In October, the sun shines for about 6.8 of 11.9 hours of daylight in San Nicolas, 57 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain

Rain in San Nicolas: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
559 mm on 115 days
Wettest month
Nov · 139 mm
Driest month
Mar · 11 mm
OctoberRainy days 19Rainfall 118 mm

In October, San Nicolas has about 19 rainy days with 118 mm of rain in total.

Sun protection

UV index in San Nicolas

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
11 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.

The sun is strongest in August (UV 13).

Minutes until sunburn in October

Very fair skin
about 10 min
Fair skin
about 15 min
Light brown skin
about 20 min
Olive skin
about 25 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds

Wind and clouds in San Nicolas

How breezy and how cloudy San Nicolas is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
36 km/h · fresh breeze
Windiest month
Jun · 40 km/h
Calmest month
Oct · 31 km/h
OctoberWind 31 km/hBeaufort 5
20
WindBeaufort 4

In October, the wind in San Nicolas typically peaks at 31 km/h during the day: Beaufort 5, fresh breeze.

Breezy months for windsurfing and kiting

From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting, and here it is that strong all year.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
54 % · variable cloud
Clearest month
Jan · 34 %
Cloudiest month
May · 71 %
OctoberCloud cover 65 %Sunshine 6.8 h

In October, cloud covers on average 65 % of the sky over San Nicolas: mostly cloudy, with about 6.8 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity

Heat and humidity in San Nicolas

How often the day gets hot in San Nicolas (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
115 days
Hottest month
Sep · 31 °C
Hot months
Jul – Oct

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 18Daytime high 30 °C

In October, San Nicolas has about 18 hot days, with an average daytime high of 30 °C: hot and muggy. Plan outdoor activities for the morning and evening, drink a lot and take breaks in the cool.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Planning a trip to San Nicolas

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

San Nicolas in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

San Nicolas has its best school-holiday weather during the Easter holidays (score 97) and its weakest during October half-term (score 73).

  • Easter holidays

    Mar – Apr

    97

    ExcellentBest holidays

    • 29 °C by day
    • Sea 26 °C
    • 8.2 h of sun a day
    • 5 rainy days a month

    Good for: Beach & swimming

  • May half-term

    May – Jun

    96

    Excellent

    • 30 °C by day
    • Sea 27 °C
    • 8.3 h of sun a day
    • 5 rainy days a month

    Good for: Beach & swimming

  • Summer holidays

    Jul – Aug

    96

    Excellent

    • 30 °C by day
    • Sea 28 °C
    • 9.1 h of sun a day
    • 7 rainy days a month

    Good for: Beach & swimming

  • October half-term

    Oct

    73

    Good

    • 30 °C by day
    • Sea 29 °C
    • 6.8 h of sun a day
    • 19 rainy days a month

    Keep in mind: Frequent rain

  • Christmas holidays

    Dec – Jan

    83

    Excellent

    • 28 °C by day
    • Sea 27 °C
    • 7.8 h of sun a day
    • 13 rainy days a month

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 9 h 35 min
Distance
7,510 km
Time zone
UTC−4
Jet lag
About 3 days (5 h west)

Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Compare & alternatives

Compare

San Nicolas compared

Put San Nicolas side by side with another destination.

Nearby:
Compare with home:

San Nicolas vs Aruba (Oranjestad)

In October the holiday weather in San Nicolas and Aruba (Oranjestad) is about equally good (score 73 vs 73). During the day it is about as warm in Aruba (Oranjestad) as in San Nicolas. The sea is about equally warm.

San Nicolas vs Aruba (Oranjestad), in October
in OctoberSan NicolasAruba (Oranjestad)
Holiday weather score7373
Daytime high30°30°
Sea29°29°
Sunshine7 h7 h
Rainy days1919
Best timeJan – SepJan – Sep

Through the year

OctoberSan Nicolas 30°Aruba (Oranjestad) 30°
San NicolasAruba (Oranjestad)
Go to Aruba (Oranjestad)
Ranking

Aruba in October: the best places

In October, San Nicolas ranks 1 of 2 destinations in this country.

  1. San NicolasThis page30°29°73
  2. 2Aruba (Oranjestad)30°29°73
All destinations: Aruba

Near San Nicolas

Other destinations close by.

Places with a climate like San Nicolas

Destinations whose weather through the year is closest to San Nicolas's – good alternatives.

  1. 82 % similar44KralendijkCaribbean Netherlands30°29°Best time: Jan – Apr
  2. 74 % similar52Cockburn TownTurks and Caicos Islands29°29°Best time: Dec – Jun
  3. 72 % similar75ProvidencialesTurks and Caicos Islands29°29°Best time: Nov – Aug
  4. 70 % similar77The BottomCaribbean Netherlands30°29°Best time: Dec – Jul

Frequently asked questions about San Nicolas

When is the best time to visit San Nicolas?

The best time to visit San Nicolas is from January to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in San Nicolas?

The sea temperature in San Nicolas ranges from 26.1 °C in February to 28.9 °C in October. At 20 °C and more, the sea is warm enough for swimming all year round.

Can you swim in San Nicolas in October?

Yes. In October the sea averages 28.9 °C – lovely and warm for swimming.

What is the warmest month in San Nicolas?

September is the warmest month, with average highs of 31 °C and nights around 27 °C. January is the coolest month at 28 °C.

When does it rain most in San Nicolas?

The rainy season is from October to November; the wettest month is November with 139 mm. The driest month is March with 11 mm.

How many hours of sunshine does San Nicolas get?

San Nicolas gets around 2,970 hours of sunshine a year. The sunniest month is July with 9.1 hours a day; in October there are 6.8 hours a day.

What time zone is San Nicolas in?

San Nicolas is on UTC−4 all year.

How long is the flight from London to San Nicolas?

A nonstop flight from London to San Nicolas takes about 9 h 35 min, for a straight-line distance of about 7,510 km.

Which school holidays are best for San Nicolas?

San Nicolas has its best school-holiday weather during the Easter holidays (score 97) and its weakest during October half-term (score 73). Holiday ratings (0–100): Easter holidays 97, May half-term 96, summer holidays 96, October half-term 73, Christmas holidays 83.