January weather forecast
Koh Chang, Thailand

A fresh start to the New Year begins with a blend of warmth and drizzle in Koh Chang, Thailand. January is a mild month with few rainfall days, thus making outdoor activities enjoyable without too many weather disruptions. The curious traveler will note the gradual increase in daytime temperature compared to the month prior, ushering in the steadily advancing warmth. The sea temperature still offers a pleasant setting for water-based activities. The noteworthy January feature is the rainfall total of 31mm (1.22"), bringing fresh, cool air to the tropical island.

Temperature

Koh Chang records an average high-temperature of a still hot 31°C (87.8°F) as January arrives, nearly mirroring the previous month's climate. January in Koh Chang generally records an average low-temperature of 20°C (68°F).

Rainfall

In Koh Chang, in January, it is raining for 3 days, with typically 31mm (1.22") of accumulated precipitation. In Koh Chang, Thailand, during the entire year, the rain falls for 170 days and collects up to 3442mm (135.51") of precipitation.

Sea temperature

With an average sea temperature of 27.7°C (81.9°F), January is the month with the coldest seawater in Koh Chang, Thailand.
Note: Water activities in surface temperatures between 25°C (77°F) and 29°C (84.2°F) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

The average length of the day in January is 11h and 31min.
On the first day of January in Koh Chang, sunrise is at 06:30 and sunset at 17:56. On the last day of the month, sunrise is at 06:35 and sunset at 18:12 +07.

Sunshine

The months with the most sunshine in Koh Chang are January and December, with an average of 9h of sunshine.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 10. A UV Index value of 8 to 10 symbolizes a very high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 10 during January translates into these guidelines:
Without constant care, eyes and skin might suffer damage in a short time. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat. One should apply and reapply liberally a broad-spectrum sunscreen of SPF 30+ every two hours and immediately after a swim or an outdoor exercise. Note! Reflective surfaces like sand and water heighten the UV radiation levels.