Weather in Koror Palau in September 2025
Average weather
Average temperature in Koror Palau in September
The expected average maximum temperature in September is +82°F with a maximum of +84°F and a minimum of +79°F.
The average maximum temperature goes down 33% by the end of the month, compared with the beginning of the month, from +84°F to +82°F.
Is Koror Palau warm or cold in September?
Koror Palau is typically warm in September.
Maximum temperatures go up compared to the previous month from +82°F to +82°F. The minimum temperature also goes up from +79°F to +79°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Koror Palau:
Climate in Koror Palau in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +82°F | +82°F | +82°F | ||||
| Min. temperature | ||||||
| +73°F | +73°F | +73°F | ||||
| Max. temperature | ||||||
| +90°F | +91°F | +91°F | ||||
| Rainfall | ||||||
| 316 mm | 300 mm | 314 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 83% | 83% | 83% | ||||
| Air pressure | ||||||
| 1009 HPa | 1009 HPa | 1008 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 2 | 2 | 2 | ||||
| Rainy days | ||||||
| 28 | 27 | 28 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. The temperature levels stay the same in the area of +82°F for average maximum temperature during the day. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 316 mm to 300 mm. Humidity levels don’t change as the month goes on, averaging around 83%. The average wind speed doesn’t change much during September, staying around 3 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Koror Palau is gradually increasing during September, going from 4 m/s to 5 m/s over the course of the month.
Rain
How was the weather last September in Koror Palau?
Climate Change Over the Years
The climate in Koror Palau in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1983 (+81°F) and the highest in 2017 (+88°F). The driest year was 2015 with only 1925 mm of rainfall, and the wettest year was 2005 with 6409 mm.
FAQ
Is September a good time to visit Koror Palau?
Can you sunbathe in Koror Palau in September?
Is Koror Palau rainy in September?
Is it sunny in Koror Palau in September?
Monthly weather in Koror Palau
Source of the data
For this page, we’ve looked at the typical weather in Koror Palau, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
