May weather forecast
Koh Chang, Thailand

May rings in the bells for the rainy season in Koh Chang. Compared to the preceding month, a drastic increase in rainfall takes center stage, indicating the wet season's full swing. With the heat persisting from April, May ensures a natural sauna effect, suitable for visitors who enjoy high humidity. The sea remains welcoming to swimmers throughout. Despite the regular themes of drier months, the notable feature of May is the amplified rainfall to a solid 351mm (13.82").

Temperature

Koh Chang's May average high-temperature settles at a still tropical 31°C (87.8°F), showing a near match with the preceding month. In the month of May, Koh Chang witnesses a consistent average low-temperature of 24°C (75.2°F).

Rainfall

In Koh Chang, in May, during 20 rainfall days, 351mm (13.82") of precipitation is typically accumulated. In Koh Chang, during the entire year, the rain falls for 170 days and collects up to 3442mm (135.51") of precipitation.

Sea temperature

May is the month with the warmest seawater, with an average sea temperature of 30.3°C (86.5°F).
Note: When the aim is to cool down, temperatures above 30°C (86°F) in waters might not be very inviting.

Daylight

In Koh Chang, the average length of the day in May is 12h and 41min.
On the first day of the month, sunrise is at 05:50 and sunset at 18:24. On the last day of May, sunrise is at 05:44 and sunset at 18:31 +07.

Sunshine

In Koh Chang, the average sunshine in May is 6h.

UV index

The months with the highest UV index are February through October, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 12 in May translates into the following instructions:
Execute all crucial precautions. Warding off sun exposure is non-negotiable. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Sunscreen with an SPF of 30 or higher should be applied generously and frequently reapplied even on cloudy days, especially after each swim or outdoor workout. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.