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Ilhabela weather & best time to visit

Sun, sea & sand

Ilhabela at a glance

Best time
All year
Warmest month
Feb · 29°
Warmest sea
Feb · 26.7°
Sunshine a year
2,090 h
Rain a year
1,882 mm
Climate
Tropical
Time zone
UTC−3
Elevation
7 m

Climate in Ilhabela

Ilhabela has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. February is the warmest month with average highs of 29 °C, while July is the coolest at 24 °C. With around 2,090 hours of sunshine a year, Ilhabela is moderately sunny; February is the sunniest month with 6.3 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Ilhabela

The best time to visit Ilhabela is all year round. For a beach holiday – sea from 21 °C, warm and mostly dry – go from May to August. For sightseeing, day trips and hiking, conditions are most comfortable from May to August. The wettest month is January with 278 mm of precipitation.

Ilhabela through the seasons

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

Ilhabela in spring

Sep – Nov

66

Good

  • 25–26 °C by day
  • Sea 22 °C
  • 5.5 h of sun a day
  • 46 rainy days in all

Ilhabela in summer

Dec – Feb

70

Good

  • 28–29 °C by day
  • Sea 26 °C
  • 6.1 h of sun a day
  • 62 rainy days in all

Ilhabela in autumn

Mar – May

74

Good

  • 26–29 °C by day
  • Sea 25 °C
  • 5.8 h of sun a day
  • 45 rainy days in all

Ilhabela in winter

Jun – Aug

70

Good

  • 24–25 °C by day
  • Sea 22 °C
  • 5.5 h of sun a day
  • 28 rainy days in all

Which month for what?

Beach & swimming

May – Aug

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

May – Aug

15–28 °C and not too much rain

Find your perfect month

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

Swimming in the sea
Sunshine
Little rain

Your best months: January – 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

64

Holiday weather in October

Good

Best time to visit: all year

A typical day in October

  1. Morning, 08:00: about 22°
  2. Midday, 13:00: about 25°
  3. Afternoon, 16:00: about 25°
  4. Evening, 20:00: about 22°
  5. Night, 23:00: about 21°

05:2918:05

Pleasant evenings; a light layer can help.

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

Light for photos in October

Golden hour
Morning 05:15–05:59 · evening 17:35–18:19
Blue hour
Morning 05:06–05:15 · evening 18:19–18:28

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 Ilhabela compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs rise from about 25° at the start of the month to 26° at the end. The sea warms from 22° to 23°. The days get 0.6 h longer.

Early or late October?
October1 Oct31 Oct
Daytime high25°26°
Night-time low18°19°
Sea22°23°
Daylight12.3 h12.9 h

What is the weather like in Ilhabela in October?

In October, Ilhabela is warm: daytime highs average 26 °C, and nights cool down to about 19 °C. The sea averages 22.2 °C – refreshing for a swim. Expect around 5.1 hours of sunshine a day. It rains often – on about 16 days, adding up to 147 mm. The air is often humid and muggy. All in all, October is a good month for a holiday in Ilhabela.

More details for October

Daylight
12 h 37 min05:29 – 18:05
UV index
11 · extremeclear sky, noon (estimate)All months
Muggy days
21 daysdew point 18 °C or moreAll months
Wind
16 km/haverage daily peakAll months
Cloud cover
73 %on averageAll months
Hot days
3 days30 °C or moreAll months
Time zone
UTC−3offset from UTC

How the score comes together

  • Temperatureweight 35 %100 %
  • Seaweight 25 %74 %
  • Sunshineweight 20 %35 %
  • Few rainy daysweight 20 %15 %

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
  • Insect repellent
  • Rain jacket or umbrella

Compare two months in Ilhabela

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

vs

April has the better holiday weather in Ilhabela: score 76 against 64. In April, days are 1 °C warmer than in October. The sea is 3 °C warmer in April. April has 2 fewer rainy days. The sun shines an hour longer a day in April.

October vs April, Ilhabela
MonthOctoberApril
Holiday weather score6476better
Daytime high26°27°
Night-time low19°21°
Sea22.2°25.5°
Sunshine5.1 h6.0 hbetter
Rainy days1614better
Rainfall147 mm136 mmbetter
Muggy days21better25

Based on the climate averages 1996–2025.

Ilhabela month by month

The typical weather for every month at a glance.

69January29° · Sea 26° · 5.8 h

In January, Ilhabela is hot: daytime highs average 29 °C, and even at night it stays warm at around 23 °C. The sea averages 26.2 °C – lovely and warm for swimming. Expect around 5.8 hours of sunshine a day. It rains often – on about 22 days, adding up to 278 mm. On about 10 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is a good month for a holiday in Ilhabela.

Ilhabela in January
71February29° · Sea 27° · 6.3 h

In February, Ilhabela is hot: daytime highs average 29 °C, and even at night it stays warm at around 23 °C. The sea averages 26.7 °C – lovely and warm for swimming. Expect around 6.3 hours of sunshine a day. It rains often – on about 20 days, adding up to 230 mm. On about 10 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, February is a good month for a holiday in Ilhabela.

Ilhabela in February
70March29° · Sea 26° · 6.0 h

In March, Ilhabela is hot: daytime highs average 29 °C, and even at night it stays warm at around 23 °C. The sea averages 26.3 °C – lovely and warm for swimming. Expect around 6.0 hours of sunshine a day. It rains often – on about 20 days, adding up to 223 mm. On about 8 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, March is a good month for a holiday in Ilhabela.

Ilhabela in March
76April27° · Sea 26° · 6.0 h

In April, Ilhabela is hot: daytime highs average 27 °C, and even at night it stays warm at around 21 °C. The sea averages 25.5 °C – pleasant for swimming. Expect around 6.0 hours of sunshine a day. It rains often – on about 14 days, adding up to 136 mm. On about 5 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a good month for a holiday in Ilhabela.

Ilhabela in April
76May26° · Sea 24° · 5.3 h

In May, Ilhabela is warm: daytime highs average 26 °C, and nights cool down to about 19 °C. The sea averages 23.7 °C – pleasant for swimming. Expect around 5.3 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 107 mm in total. The air is often humid and muggy. All in all, May is a good month for a holiday in Ilhabela.

Ilhabela in May
72June25° · Sea 22° · 5.2 h

In June, Ilhabela is warm: daytime highs average 25 °C, and nights cool down to about 17 °C. The sea averages 22.3 °C – refreshing for a swim. Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 79 mm in total. All in all, June is a good month for a holiday in Ilhabela.

Ilhabela in June
69July24° · Sea 21° · 5.5 h

In July, Ilhabela is warm: daytime highs average 24 °C, and nights cool down to about 17 °C. The sea averages 21.4 °C – refreshing for a swim. Expect around 5.5 hours of sunshine a day. Rain falls on about 9 days, adding up to 82 mm. All in all, July is a good month for a holiday in Ilhabela.

Ilhabela in July
70August25° · Sea 21° · 5.9 h

In August, Ilhabela is warm: daytime highs average 25 °C, and nights cool down to about 17 °C. The sea averages 21.0 °C – refreshing for a swim. Expect around 5.9 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 79 mm in total. All in all, August is a good month for a holiday in Ilhabela.

Ilhabela in August
67September25° · Sea 22° · 5.6 h

In September, Ilhabela is warm: daytime highs average 25 °C, and nights cool down to about 18 °C. The sea averages 21.5 °C – refreshing for a swim. Expect around 5.6 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 117 mm in total. All in all, September is a good month for a holiday in Ilhabela.

Ilhabela in September
64October26° · Sea 22° · 5.1 h

In October, Ilhabela is warm: daytime highs average 26 °C, and nights cool down to about 19 °C. The sea averages 22.2 °C – refreshing for a swim. Expect around 5.1 hours of sunshine a day. It rains often – on about 16 days, adding up to 147 mm. The air is often humid and muggy. All in all, October is a good month for a holiday in Ilhabela.

Ilhabela in October
66November26° · Sea 23° · 5.8 h

In November, Ilhabela is warm: daytime highs average 26 °C, and even at night it stays warm at around 20 °C. The sea averages 22.9 °C – refreshing for a swim. Expect around 5.8 hours of sunshine a day. It rains often – on about 17 days, adding up to 183 mm. The air is often humid and muggy. All in all, November is a good month for a holiday in Ilhabela.

Ilhabela in November
71December28° · Sea 25° · 6.3 h

In December, Ilhabela is hot: daytime highs average 28 °C, and even at night it stays warm at around 22 °C. The sea averages 24.8 °C – pleasant for swimming. Expect around 6.3 hours of sunshine a day. It rains often – on about 20 days, adding up to 221 mm. On about 6 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is a good month for a holiday in Ilhabela.

Ilhabela in December

Climate in detail

Year & climate tableWarmest in February: 29°

Climate through the year

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

Best time to visit

Nights and sleep in Ilhabela

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

  • Pleasant 15–20°
  • Warm 20–24°
  • muggy month (15+ muggy days)

PleasantOctober: nights around 19°. Ideal for sleeping, often with the window open. Muggy on about 21 days (dew point 18 °C or more).

The coolest nights are in July (17°), the warmest in February (23°). Tropical nights of 20 °C and more are the rule from November to April; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) from May to October. It is muggy (dew point 18 °C or more) on about 233 days a year, mostly from October to May.

Temperatures through the year

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

OctoberDay 26°Night 19°Sea 22°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan6929°23°26.2°5.8 h22278
FebruaryFeb7129°23°26.7°6.3 h20230
MarchMar7029°23°26.3°6.0 h20223
AprilApr7627°21°25.5°6.0 h14136
MayMay7626°19°23.7°5.3 h12107
JuneJun7225°17°22.3°5.2 h1079
JulyJul6924°17°21.4°5.5 h982
AugustAug7025°17°21.0°5.9 h979
SeptemberSep6725°18°21.5°5.6 h13117
OctoberOct6426°19°22.2°5.1 h16147
NovemberNov6626°20°22.9°5.8 h17183
DecemberDec7128°22°24.8°6.3 h20221

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

23.78° S, 45.36° W · 7 m · America/Sao_Paulo

Sea temperatureUp to 27° in February
Swimming calendar

Sea temperature in Ilhabela

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

Sea in October22.2°Crefreshing

8 in 10 years: 21.0 – 23.3 °C

Swimming season: all year

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 22.2°8 in 10 years 21.0° – 23.3°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Ilhabela ranges from 21.0 °C in August to 26.7 °C in February. At 20 °C and more, the sea is warm enough for swimming all year round.

The sea temperature varies from year to year: in February, eight out of ten years were between 24.9 and 27.9 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan26.2°24.6°28.1°warm
FebruaryFeb26.7°24.9°27.9°warm
MarchMar26.3°24.6°27.5°warm
AprilApr25.5°24.4°26.6°pleasant
MayMay23.7°22.7°24.6°pleasant
JuneJun22.3°21.4°23.5°refreshing
JulyJul21.4°20.7°22.3°refreshing
AugustAug21.0°19.7°21.9°refreshing
SeptemberSep21.5°20.6°22.2°refreshing
OctoberOct22.2°21.0°23.3°refreshing
NovemberNov22.9°21.7°24.2°refreshing
DecemberDec24.8°23.5°26.0°pleasant
Sunshine2,090 hours a year
Sunshine

Sunshine hours in Ilhabela

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

Per year
2,090 hours
Sunniest month
Feb · 6.3 h a day
Least sunshine
Oct · 5.1 h a day
OctoberSunshine 5.1 hDaylight 12.6 hShare of daylight 40 %
SunshineDaylight

In October, the sun shines for about 5.1 of 12.6 hours of daylight in Ilhabela, 40 % 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.

Rain1,882 mm a year, most in January
Rain

Rain in Ilhabela: 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
1,882 mm on 181 days
Wettest month
Jan · 278 mm
Driest month
Jun · 79 mm
OctoberRainy days 16Rainfall 147 mm

In October, Ilhabela has about 16 rainy days with 147 mm of rain in total.

UV indexUp to 12 in December
Sun protection

UV index in Ilhabela

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 December (UV 12).

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 & cloudsWindiest in September: 16 km/h
Wind & clouds

Wind and clouds in Ilhabela

How breezy and how cloudy Ilhabela 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
14 km/h · gentle breeze
Windiest month
Sep · 16 km/h
Calmest month
Feb · 13 km/h
OctoberWind 16 km/hBeaufort 3
20
WindBeaufort 4

In October, the wind in Ilhabela typically peaks at 16 km/h during the day: Beaufort 3, gentle breeze.

Breezy months for windsurfing and kiting

The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.

Clouds

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

Year average
62 % · variable cloud
Clearest month
Jul · 50 %
Cloudiest month
Jan · 74 %
OctoberCloud cover 73 %Sunshine 5.1 h

In October, cloud covers on average 73 % of the sky over Ilhabela: mostly cloudy, with about 5.1 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 & humidity59 days of 30° or more a year
Heat & humidity

Heat and humidity in Ilhabela

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

Hot days a year
59 days
Hottest month
Feb · 29 °C
Hot months
none

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 3Daytime high 26 °C

In October, Ilhabela has about 3 hot days, with an average daytime high of 26 °C: often muggy. The air feels warmer than the thermometer says: light, airy clothes and slow days help.

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 Ilhabela

Weather for your travel dates

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

Ilhabela 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.

Ilhabela has its best school-holiday weather during May half-term (score 75) and its weakest during October half-term (score 64).

  • Easter holidays

    Mar – Apr

    74

    Good

    • 28 °C by day
    • Sea 26 °C
    • 6.0 h of sun a day
    • 16 rainy days a month
  • May half-term

    May – Jun

    75

    GoodBest holidays

    • 25 °C by day
    • Sea 23 °C
    • 5.3 h of sun a day
    • 11 rainy days a month

    Good for: Beach & swimming, Sightseeing & walks

  • Summer holidays

    Jul – Aug

    70

    Good

    • 25 °C by day
    • Sea 21 °C
    • 5.8 h of sun a day
    • 9 rainy days a month

    Good for: Beach & swimming, Sightseeing & walks

  • October half-term

    Oct

    64

    Good

    • 26 °C by day
    • Sea 22 °C
    • 5.1 h of sun a day
    • 16 rainy days a month
  • Christmas holidays

    Dec – Jan

    70

    Good

    • 28 °C by day
    • Sea 26 °C
    • 6.1 h of sun a day
    • 21 rainy days a month

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 11 h 55 min
Distance
9,440 km
Time zone
UTC−3
Jet lag
About 3 days (4 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.

Most routes need a change of planes, which adds time.

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

Good to know: Brazil

Currency
Brazilian Real (BRL)
Language
Portuguese
Sockets
Type C, N · 127 V
Traffic
Drives on the right
Dialling code
+55

UK plugs need a travel adapter

Only 127 V: chargers marked 100–240 V work, other devices need a voltage converter.

Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.

Compare & alternatives

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Ilhabela compared

Put Ilhabela side by side with another destination.

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Ilhabela vs Ubatuba

In October the holiday weather in Ilhabela and Ubatuba is about equally good (score 64 vs 65). During the day Ubatuba is 1 °C cooler than Ilhabela. The sea in Ubatuba is 1 °C warmer.

Ilhabela vs Ubatuba, in October
in OctoberIlhabelaUbatuba
Holiday weather score6465
Daytime high26°25°
Sea22°23°
Sunshine5 h5 h
Rainy days1616
Best timeAll yearAll year

Through the year

OctoberIlhabela 26°Ubatuba 25°
IlhabelaUbatuba
Go to Ubatuba
Best places in the country
Ranking

Brazil in October: the best places

In October, Ilhabela ranks 10 among the 31 nearest destinations in this country.

  1. Cabo Frio26°22°74
  2. 2Itaguaí29°22°72
  3. 3Armação dos Búzios26°22°72
  4. 4Ipanema29°22°71
  5. 5Rio de Janeiro29°22°71
  6. 6Ubatuba25°23°65
  7. 7São Paulo26°65
  8. 8Angra dos Reis25°23°65
  9. 10IlhabelaThis page26°22°64
All destinations: Brazil
Places nearby4 places within 89 km

Near Ilhabela

Other destinations close by.

Places with a similar climatee.g. Joinville and Nouméa

Places with a climate like Ilhabela

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

  1. 81 % similar60JoinvilleBrazil25°21°Best time: Apr – Sep, Nov
  2. 76 % similar68NouméaNew Caledonia27°23°Best time: May – Nov
  3. 74 % similar72Armação dos BúziosBrazil26°22°Best time: Apr – Oct
  4. 74 % similar74Cabo FrioBrazil26°22°Best time: Apr – Oct

Frequently asked questions about Ilhabela

When is the best time to visit Ilhabela?

The best time to visit Ilhabela is all year round. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Ilhabela?

The sea temperature in Ilhabela ranges from 21.0 °C in August to 26.7 °C in February. At 20 °C and more, the sea is warm enough for swimming all year round.

Can you swim in Ilhabela in October?

Yes. In October the sea averages 22.2 °C – refreshing for a swim.

What is the warmest month in Ilhabela?

February is the warmest month, with average highs of 29 °C and nights around 23 °C. July is the coolest month at 24 °C.

When does it rain most in Ilhabela?

The wettest month is January with 278 mm of precipitation. The driest month is June with 79 mm.

How many hours of sunshine does Ilhabela get?

Ilhabela gets around 2,090 hours of sunshine a year. The sunniest month is February with 6.3 hours a day; in October there are 5.1 hours a day.

What time zone is Ilhabela in?

Ilhabela is on UTC−3 all year.

How long is the flight from London to Ilhabela?

A nonstop flight from London to Ilhabela takes about 11 h 55 min, for a straight-line distance of about 9,440 km. Most routes need a change of planes, which adds time.

Which school holidays are best for Ilhabela?

Ilhabela has its best school-holiday weather during May half-term (score 75) and its weakest during October half-term (score 64). Holiday ratings (0–100): Easter holidays 74, May half-term 75, summer holidays 70, October half-term 64, Christmas holidays 70.