Koror in Fall

In fall (September, October and November), Koror sees average daytime highs around 28°C and overnight lows near 26°C, with 795 mm of rain over about 75 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.

Across fall, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 14% of the time across fall, and the air most often feels miserable.

Fall is Koror's 3rd-best season to visit on our travel score. Koror has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Koror's year-round climate.

Avg daytime high
28°C
warmest season of the year
Avg overnight low
26°C
Rainfall
795 mm
75 wet days
Avg wind
17 km/h
Travel score
3.8
3rd-best season
Months
Sep · Oct · Nov

Temperature in Koror in Fall

Average highAverage lowShaded bands: 10–90% of days

Across fall, daytime highs hold fairly steady around 28°C.

A typical fall day in Koror reaches about 28°C and drops to 26°C overnight. The warmest of the three months is November, the coolest September.

24°26°28°30°32°SepOctNov

How fall really feels in Koror

Once humidity and wind are folded in, fall brings about 83 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C
83
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Koror weather by month

How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 26°23922.911.64.4
Feb28° / 26°21819.211.84.7
Mar28° / 26°15819.5124.9
Apr28° / 26°18621.312.24.5
May28° / 26°29126.712.33.6
Jun28° / 26°34727.812.43.4
Jul28° / 26°33726.812.43.7
Aug28° / 26°27025.112.24.0
Sep28° / 26°27024.2123.9
Oct28° / 26°2582511.83.8
Nov28° / 26°2672611.73.6
Dec28° / 26°28126.611.63.7

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time across fall.

0%25%50%75%100%SepOctNov

Chance of precipitation in Fall

Any precipitation

Koror gets around 795 mm of rain over 75 wet days across fall. The line is the day-by-day chance of measurable precipitation.

0%20%40%60%80%100%SepOctNov

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

Most of fall feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

0%25%50%75%100%SepOctNov

Wind in Fall

Winds average 17 km/h across fall.

0510152025SepOctNov

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 06 min in early September to 11 h 36 min by late November. The lit band spans sunrise to sunset each day.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMSepOctNov

Solar energy in Fall

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 5.2 kWh/m².

0246SepOctNov
Planning a trip in fall

Hazard calendar for Koror

In seasonPeak

In fall, Koror overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Koror sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is fall a good time to visit Koror?

Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

3.8
Sightseeing
3rd-best month of the year
4.3
Beach & pool
3rd-best month of the year

fall is a weaker month for outdoor sightseeing in Koror.

What to pack for Koror in Fall

From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In fall, Koror sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 75 days see rain.

light clothesrain gearsun protection

Sea temperature near Koror in Fall

The nearest coast averages about 29°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in June at about 30°C and coldest in February near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Koror in Fall

LowModerateHighVery highExtreme

Clear-sky midday UV across fall averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Koror peaks around March 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 11 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 24UV 15Dec 13UV 11
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar15Extreme
Apr15Extreme
May14Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct14Extreme
Nov11Extreme
Dec11Extreme
Location & terrain

Where is Koror?

Koror sits at 7.3°N, 134.5°E, 0 m above sea level, in Palau. The nearest listed city is Ngerulmud, 24 km away.

Ngerulmud

Topography around Koror

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Koror.

Within 3 km, the terrain around Koror has only modest variations in elevation — a maximum elevation change of 155 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 205 m; within 80 km, only modest variations in elevation — a maximum elevation change of 224 m.

The land around Koror is covered by water (67%) and trees (22%) within 3 km, water (79%) within 16 km, and water (96%) within 80 km.

3 km
155 m
16 km
205 m
80 km
224 m
treesgrasslandartificial surfaceswatermangroves
Fall weather nearby: Ngerulmud 24 km · Manay 875 km · Daruba 903 km · Hinatuan 904 km · Bislig 904 km · Mati 912 km · Manokwari 913 km · Tagbina 923 km

Palau travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 85% of US
price level, 2025
GDP per capita
$19,532
2025
Safe drinking water
91%
of population, 2024
Homicide rate
11.2
per 100k, 2018
Road deaths
4.8
per 100k/yr, 2013
Income group
High
World Bank
Religion
Roman Catholic 47%Protestant 31%other 12%Modekngei 5%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Koror (7.3398°, 134.4733°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.