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Koror weather & best time to visit

Sun, sea & sand

Koror at a glance

Best time
All year
Warmest month
Apr · 32°
Warmest sea
Jun · 29.6°
Sunshine a year
2,150 h
Rain a year
3,304 mm
Climate
Tropical
Time zone
UTC+9
Elevation
20 m

Climate in Koror

Koror has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. April is the warmest month with average highs of 32 °C, while August is the coolest at 31 °C. With around 2,150 hours of sunshine a year, Koror is moderately sunny; April is the sunniest month with 6.8 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Koror

The best time to visit Koror is all year round. The sea reaches 29.6 °C in June, but frequent rain gets in the way of a classic beach holiday. The wettest month is July with 368 mm of precipitation.

Koror through the seasons

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

Koror in spring

Mar – May

66

Good

  • 32 °C by day
  • Sea 29 °C
  • 6.4 h of sun a day
  • 70 rainy days in all

Koror in summer

Jun – Aug

66

Good

  • 31–32 °C by day
  • Sea 29 °C
  • 5.3 h of sun a day
  • 80 rainy days in all

Koror in autumn

Sep – Nov

66

Good

  • 31–32 °C by day
  • Sea 29 °C
  • 5.8 h of sun a day
  • 77 rainy days in all

Koror in winter

Dec – Feb

67

Good

  • 31–32 °C by day
  • Sea 29 °C
  • 6.1 h of sun a day
  • 70 rainy days in all

Which month for what?

Beach & swimming

No month

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

No month

15–28 °C and not too much rain

Rainy months

All year

Rainy season or more than 12 rainy days

Find your perfect month

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

Swimming in the sea
Sunshine
Little rain

Your best months: February – March, August

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

Your holiday weather, at a glance

Weather in October

Weather in October

65

Holiday weather in October

Good

Best time to visit: all year

Keep in mindFrequent rain

A typical day in October

  1. Morning, 08:00: about 28°
  2. Midday, 13:00: about 32°
  3. Afternoon, 16:00: about 31°
  4. Evening, 20:00: about 28°
  5. Night, 23:00: about 27°

05:4917:47

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 05:36–06:16 · evening 17:19–18:00
Blue hour
Morning 05:28–05:36 · evening 18:00–18:08

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 Koror compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs stay at about 32° from start to end. The sea warms from 29° to 30°.

Early or late October?
October1 Oct31 Oct
Daytime high32°32°
Night-time low25°25°
Sea29°30°
Daylight12.1 h11.9 h

What is the weather like in Koror in October?

In October, Koror is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.5 °C – almost as warm as a bath. Expect around 5.7 hours of sunshine a day. It rains often – on about 26 days, adding up to 279 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, October is a good month for a holiday in Koror.

More details for October

Daylight
11 h 58 min05:49 – 17:47
UV index
13 · extremeclear sky, noon (estimate)All months
Muggy days
31 daysdew point 18 °C or moreAll months
Wind
21 km/haverage daily peakAll months
Cloud cover
77 %on averageAll months
Hot days
31 days30 °C or moreAll months
Time zone
UTC+9offset from UTC

How the score comes together

  • Temperatureweight 35 %90 %
  • Seaweight 25 %100 %
  • Sunshineweight 20 %45 %
  • 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

Compare two months in Koror

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

vs

October and February bring similar holiday weather to Koror (score 65 and 69). In February, days are 1 °C cooler than in October. The sea is 1 °C cooler in February. February has 6 fewer rainy days. The sun shines an hour longer a day in February.

October vs February, Koror
MonthOctoberFebruary
Holiday weather score6569
Daytime high32°31°
Night-time low25°25°
Sea29.5°28.3°
Sunshine5.7 h6.2 hbetter
Rainy days2620better
Rainfall279 mm226 mmbetter
Muggy days3128better

Based on the climate averages 1996–2025.

Koror month by month

The typical weather for every month at a glance.

68January32° · Sea 29° · 6.2 h

In January, Koror is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 28.7 °C – lovely and warm for swimming. Expect around 6.2 hours of sunshine a day. It rains often – on about 24 days, adding up to 256 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, January is a good month for a holiday in Koror.

Koror in January
69February31° · Sea 28° · 6.2 h

In February, Koror is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 28.3 °C – lovely and warm for swimming. Expect around 6.2 hours of sunshine a day. It rains often – on about 20 days, adding up to 226 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, February is a good month for a holiday in Koror.

Koror in February
68March32° · Sea 29° · 6.7 h

In March, Koror is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 28.5 °C – lovely and warm for swimming. The sun shines for around 6.7 hours a day. It rains often – on about 21 days, adding up to 176 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, March is a good month for a holiday in Koror.

Koror in March
67April32° · Sea 29° · 6.8 h

In April, Koror is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.0 °C – almost as warm as a bath. The sun shines for around 6.8 hours a day. It rains often – on about 22 days, adding up to 207 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, April is a good month for a holiday in Koror.

Koror in April
64May32° · Sea 29° · 5.8 h

In May, Koror is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.4 °C – almost as warm as a bath. Expect around 5.8 hours of sunshine a day. It rains often – on about 27 days, adding up to 313 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, May is a good month for a holiday in Koror.

Koror in May
64June32° · Sea 30° · 5.3 h

In June, Koror is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.6 °C – almost as warm as a bath. Expect around 5.3 hours of sunshine a day. It rains often – on about 28 days, adding up to 350 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, June is a good month for a holiday in Koror.

Koror in June
66July31° · Sea 29° · 5.1 h

In July, Koror is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.3 °C – almost as warm as a bath. Expect around 5.1 hours of sunshine a day. It rains often – on about 27 days, adding up to 368 mm. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a good month for a holiday in Koror.

Koror in July
68August31° · Sea 29° · 5.6 h

In August, Koror is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.2 °C – almost as warm as a bath. Expect around 5.6 hours of sunshine a day. It rains often – on about 25 days, adding up to 285 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a good month for a holiday in Koror.

Koror in August
68September31° · Sea 29° · 5.7 h

In September, Koror is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.3 °C – almost as warm as a bath. Expect around 5.7 hours of sunshine a day. It rains often – on about 25 days, adding up to 282 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a good month for a holiday in Koror.

Koror in September
65October32° · Sea 30° · 5.7 h

In October, Koror is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.5 °C – almost as warm as a bath. Expect around 5.7 hours of sunshine a day. It rains often – on about 26 days, adding up to 279 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, October is a good month for a holiday in Koror.

Koror in October
64November32° · Sea 30° · 5.9 h

In November, Koror is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.5 °C – almost as warm as a bath. Expect around 5.9 hours of sunshine a day. It rains often – on about 27 days, adding up to 276 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, November is a good month for a holiday in Koror.

Koror in November
65December32° · Sea 29° · 5.8 h

In December, Koror is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.2 °C – almost as warm as a bath. Expect around 5.8 hours of sunshine a day. It rains often – on about 27 days, adding up to 285 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, December is a good month for a holiday in Koror.

Koror 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 Koror

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 25°. 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 October (25°). 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 32°Night 25°Sea 30°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan6832°25°28.7°6.2 h24256
FebruaryFeb6931°25°28.3°6.2 h20226
MarchMar6832°25°28.5°6.7 h21176
AprilApr6732°25°29.0°6.8 h22207
MayMay6432°25°29.4°5.8 h27313
JuneJun6432°25°29.6°5.3 h28350
JulyJul6631°25°29.3°5.1 h27368
AugustAug6831°25°29.2°5.6 h25285
SeptemberSep6831°25°29.3°5.7 h25282
OctoberOct6532°25°29.5°5.7 h26279
NovemberNov6432°25°29.5°5.9 h27276
DecemberDec6532°25°29.2°5.8 h27285

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

7.34° N, 134.47° E · 20 m · Pacific/Palau

Swimming calendar

Sea temperature in Koror

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

Sea in October29.5°Cvery warm

8 in 10 years: 28.9 – 30.0 °C

Swimming season: all year

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 29.5°8 in 10 years 28.9° – 30.0°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Koror ranges from 28.3 °C in February to 29.6 °C in June. At 20 °C and more, the sea is warm enough for swimming all year round.

The sea warms up slowly: it is warmest in June, while the air already peaks in April. The sea temperature varies from year to year: in June, eight out of ten years were between 29.0 and 30.1 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan28.7°28.0°29.4°warm
FebruaryFeb28.3°27.7°29.0°warm
MarchMar28.5°27.8°29.1°warm
AprilApr29.0°28.4°29.4°very warm
MayMay29.4°29.0°30.0°very warm
JuneJun29.6°29.0°30.1°very warm
JulyJul29.3°28.7°30.0°very warm
AugustAug29.2°28.3°29.9°very warm
SeptemberSep29.3°28.6°30.2°very warm
OctoberOct29.5°28.9°30.0°very warm
NovemberNov29.5°29.2°30.0°very warm
DecemberDec29.2°28.7°29.7°very warm
Sunshine

Sunshine hours in Koror

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

Per year
2,150 hours
Sunniest month
Apr · 6.8 h a day
Least sunshine
Jul · 5.1 h a day
OctoberSunshine 5.7 hDaylight 12.0 hShare of daylight 48 %
SunshineDaylight

In October, the sun shines for about 5.7 of 12.0 hours of daylight in Koror, 48 % 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 Koror: 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
3,304 mm on 297 days
Wettest month
Jul · 368 mm
Driest month
Mar · 176 mm
OctoberRainy days 26Rainfall 279 mm

In October, Koror has about 26 rainy days with 279 mm of rain in total.

Sun protection

UV index in Koror

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

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

The sun is strongest in April (UV 14).

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 Koror

How breezy and how cloudy Koror 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
24 km/h · moderate breeze
Windiest month
Feb · 29 km/h
Calmest month
Jun · 20 km/h
OctoberWind 21 km/hBeaufort 4
20
WindBeaufort 4

In October, the wind in Koror typically peaks at 21 km/h during the day: Beaufort 4, moderate 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
77 % · mostly cloudy
Clearest month
Apr · 69 %
Cloudiest month
Jul · 86 %
OctoberCloud cover 77 %Sunshine 5.7 h

In October, cloud covers on average 77 % of the sky over Koror: mostly cloudy, with about 5.7 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 Koror

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

Hot days a year
360 days
Hottest month
Apr · 32 °C
Hot months
All year

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 31Daytime high 32 °C

In October, it is hot in Koror every day, with an average daytime high of 32 °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 Koror

Weather for your travel dates

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

Koror 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.

Koror has similar weather in all school holidays (scores 64 to 67).

  • Easter holidays

    Mar – Apr

    67

    Good

    • 32 °C by day
    • Sea 29 °C
    • 6.8 h of sun a day
    • 22 rainy days a month

    Keep in mind: Frequent rain

  • May half-term

    May – Jun

    64

    Good

    • 32 °C by day
    • Sea 29 °C
    • 5.7 h of sun a day
    • 27 rainy days a month

    Keep in mind: Frequent rain

  • Summer holidays

    Jul – Aug

    67

    Good

    • 31 °C by day
    • Sea 29 °C
    • 5.4 h of sun a day
    • 26 rainy days a month

    Keep in mind: Frequent rain

  • October half-term

    Oct

    65

    Good

    • 32 °C by day
    • Sea 30 °C
    • 5.7 h of sun a day
    • 26 rainy days a month

    Keep in mind: Frequent rain

  • Christmas holidays

    Dec – Jan

    67

    Good

    • 32 °C by day
    • Sea 29 °C
    • 6.0 h of sun a day
    • 25 rainy days a month

    Keep in mind: Frequent rain

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 15 h 10 min
Distance
12,190 km
Time zone
UTC+9
Jet lag
About 8 days (8 h east)

Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning 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.

Compare & alternatives

Compare

Koror compared

Put Koror side by side with another destination.

Nearby:
Compare with home:

Koror vs Ngerulmud

In October Ngerulmud has the better holiday weather (score 70 vs 65). During the day Ngerulmud is 1 °C cooler than Koror. The sea is about equally warm.

Koror vs Ngerulmud, in October
in OctoberKororNgerulmud
Holiday weather score6570
Daytime high32°31°
Sea30°30°
Sunshine6 h6 h
Rainy days2626
Best timeAll yearJul – Oct, Dec – Apr

Through the year

OctoberKoror 32°Ngerulmud 31°
KororNgerulmud
Go to Ngerulmud
Ranking

Palau in October: the best places

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

  1. KororThis page32°30°65
  2. 2Ngerulmud31°30°32
All destinations: Palau

Near Koror

Other destinations close by.

Places with a climate like Koror

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

  1. 86 % similar63KoloniaMicronesia32°30°Best time: all year
  2. 85 % similar30PalikirMicronesia32°30°Best time: Dec – May
  3. 83 % similar28Lapu-LapuPhilippines32°30°Best time: Dec – Mar
  4. 83 % similar29CebuPhilippines32°30°Best time: Dec – Mar

Frequently asked questions about Koror

When is the best time to visit Koror?

The best time to visit Koror 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 Koror?

The sea temperature in Koror ranges from 28.3 °C in February to 29.6 °C in June. At 20 °C and more, the sea is warm enough for swimming all year round.

Can you swim in Koror in October?

Yes. In October the sea averages 29.5 °C – almost as warm as a bath.

What is the warmest month in Koror?

April is the warmest month, with average highs of 32 °C and nights around 25 °C. August is the coolest month at 31 °C.

When does it rain most in Koror?

The wettest month is July with 368 mm of precipitation. The driest month is March with 176 mm.

How many hours of sunshine does Koror get?

Koror gets around 2,150 hours of sunshine a year. The sunniest month is April with 6.8 hours a day; in July there are 5.1 hours a day.

What time zone is Koror in?

Koror is on UTC+9 all year.

How long is the flight from London to Koror?

A nonstop flight from London to Koror takes about 15 h 10 min, for a straight-line distance of about 12,190 km. Most routes need a change of planes, which adds time.

Which school holidays are best for Koror?

Koror has similar weather in all school holidays (scores 64 to 67). Holiday ratings (0–100): Easter holidays 67, May half-term 64, summer holidays 67, October half-term 65, Christmas holidays 67.