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Best Time for Ayutthaya & the River Kwai

Last updated: 2026-09-21

Sweet spot: January, February, March. Computed from NASA POWER climate normals across the route's overnight towns, balancing temperature, rainfall and daylight.

💡 Good to know

Cooler and generally drier conditions suit open-air heritage days; current rail, road and attraction status still require checking.
Very hot conditions require early outdoor visits, hydration and reduced midday exposure.
Wet-season rain can disrupt roads, rail and national-park access; reconfirm each day and retain alternatives.

Month	Low	High	Rain	Daylight
January	19.2°C	31.8°C	12 mm	11.2 h
February	21.7°C	35.0°C	11 mm	11.5 h
March	23.8°C	36.4°C	45 mm	11.9 h
April	25.2°C	36.5°C	70 mm	12.3 h
May	24.9°C	33.6°C	152 mm	12.6 h
June	24.2°C	31.9°C	153 mm	12.8 h
July	23.5°C	31.2°C	166 mm	12.8 h
August	23.3°C	30.8°C	174 mm	12.5 h
September	23.4°C	30.0°C	255 mm	12.1 h
October	22.8°C	29.9°C	188 mm	11.7 h
November	20.8°C	29.7°C	36 mm	11.3 h
December	18.6°C	29.8°C	8 mm	11.2 h

Plan it for your month →