The climate in Palau during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Palau and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 18°C (64°F) is normal.
Daytime temperature | 25.1°C 77.1°F |
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Nightly temperature | 17.8°C 64°F |
Average temperature | 21.4°C 70.5°F |
Daily sunshine | 8.9 hrs |
Avg rainfall | 33 mm 1.3 ins |
Rainy days | 8 days |
Sea temperature | 23.3°C 74°F |
Humidity | 70% |
Windspeed | 10.8kph 7 mph |
On average September is the 5th driest month of the year in Palau with around 33mm 1.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.9 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Palau in September 2025.
Best places to visit in September
Hottest month: | August | 27.9°C 82.2°F |
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Driest month: | July | 6mm 0.2ins |
Sunniest month: | July | 12.3hrs |
Coldest month: | January | 13.6°C 56.5°F |
Wettest month: | December | 74mm 2.9ins |