Climate Insights for Pailin

The climate in Pailin is hot. The average annual temperature is 26°C and approximately 2518mm of precipitation falls per year. September is the wettest month, receiving around 428mm of rainfall. Pailin is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, March, February. The coldest months are January, December, February, when temperatures can drop to 20°C.

Pailin sees moderate temperature variation throughout the year, ranging from 20°C to 32°C. The warmest month is April, when average highs reach 32°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 20°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Pailin is a very wet location, receiving approximately 2518mm of precipitation annually, which averages out to around 210mm per month. The wettest month is September, averaging 428mm of rainfall. July and August also tend to see above-average precipitation. The driest month is December, with just 21mm. That's 408mm less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Pailin is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months.

It is currently summer in Pailin, which began on June 21, 2026. Pailin is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in April at around 32°C, while the coldest stretch bottoms out in January near 20°C. Autumn is next, beginning on September 23, 2026 (3 days from now).

The best time to visit Pailin is during December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 21mm per month. By contrast, April can be uncomfortably hot with highs reaching 32°C, while January is the coldest period with lows dropping to 20°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Pailin based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.