April weather forecast
Koh Chang, Thailand

When April makes its mark on the calendar, Koh Chang embraces the most heated season of the year. Compared to March, the change in temperature becomes more apparent, indicating the peak of the hot season. The levels of heat do not deter water-based activities, thanks to the warm sea temperature that persists from the previous month. A significant rise in rainfall is evident, with April receiving a total rainfall of 119mm (4.69"). The considerably intensified showers mark a coherent shift towards the upcoming wetter months.

Temperature

In Koh Chang, April records the highest average temperatures, peaking at 32°C (89.6°F) and reaching a low of 23°C (73.4°F).

Rainfall

In Koh Chang, in April, it is raining for 10 days, with typically 119mm (4.69") of accumulated precipitation. Throughout the year, there are 170 rainfall days, and 3442mm (135.51") of precipitation is accumulated.

Sea temperature

In Koh Chang, the average seawater temperature in April is 29.9°C (85.8°F).
Note: Swimming, diving, and other water endeavors at temperatures between 25°C (77°F) and 29°C (84.2°F) are considered enjoyable and satisfying for extended periods without discomfort.

Daylight

In Koh Chang, the average length of the day in April is 12h and 24min.
On the first day of April in Koh Chang, sunrise is at 06:06 and sunset at 18:22. On the last day of the month, sunrise is at 05:51 and sunset at 18:24 +07.

Sunshine

In Koh Chang, the average sunshine in April is 8h.

UV index

The months with the highest UV index in Koh Chang, Thailand, are February through October, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an extreme threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 12 during April morphs into the following directions:
Implement all necessary safeguards, unprotected skin might suffer burns rapidly. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! Reflecting off water and sand, UV rays are much stronger.