Koh Samui vs Bangkok

Koh Samui and Bangkok are closely matched in April. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

Koh Samui sits in the comfortable travel range at 27°C. Bangkok runs hot at 35°C.

For travelers who prioritize dry weather, Bangkok is the stronger choice in April.

Koh Samui reaches an average high of 27°C (81°F) and drops to 24°C (75°F) at night during April. The daily temperature range is 3°C, meaning relatively stable temperatures from day to night.

Bangkok averages 35°C (95°F) for the high and 27°C (81°F) for the low, with a daily range of 8°C. There is a notable 8°C gap between the two cities, so expect a very different feel.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in April.

Koh Samui receives approximately 96 mm of rainfall across 12 rain days during April. You can expect rain roughly every other day.

Bangkok sees 71 mm over 11 rain days. That makes Bangkok the drier option by 1 rain day and 25 mm of total precipitation.

Both cities share similar humidity levels at 82%.