Lak Si

Lak Si stands out as one of Bangkok's larger cities and a weather reference point for the wider Thailand region.

Like much of Thailand, Lak Si has a tropical monsoon climate — hot temperatures throughout the year with a clear contrast between the rainy season (roughly May to October) and the drier, sunnier months from November onward. Humidity is consistently high, with daytime highs between 30°C and 35°C.

During the rainy season, Lak Si can see several centimetres of rain in a single afternoon. Storms often arrive late in the day and clear by evening, leaving humid but cooler conditions overnight.

Visitors looking for the best weather in Lak Si should aim for the November–February window, when the monsoon has passed and humidity drops noticeably.

Lak Si lies near sea level, so coastal breezes and ocean-moderated temperatures play an important role in day-to-day weather.

For the most accurate up-to-the-minute weather in Lak Si, see the live current conditions, hourly and 7-day forecast sections above.