October weather forecast
Koh Chang, Thailand

As October steps in, Koh Chang starts breaking away from the robust rainy patterns dominant since May. Temperature differences become more noticeable, as October starts edging into a cooler climate compared to September. Sunshine hours increase, inviting more outdoor activities and explorations. The sea temperature retains a comfortable warmth for water-bound delights. Despite the shift towards reduced precipitation, October holds its own with 310mm (12.2") of rainfall.

Temperature

As September turns into October, the average high-temperatures rest at a still tropical 31°C (87.8°F), showing a minor variation from the prior month. Throughout the nights in October, Koh Chang experiences an average low-temperature of 22°C (71.6°F).

Rainfall

In Koh Chang, in October, it is raining for 19 days, with typically 310mm (12.2") of accumulated precipitation. Throughout the year, there are 170 rainfall days, and 3442mm (135.51") of precipitation is accumulated.

Sea temperature

In Koh Chang, in October, the average water temperature is 29.3°C (84.7°F).
Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as ideal and highly pleasant for extended enjoyment in all water activities.

Daylight

The average length of the day in October is 11h and 52min.
On the first day of October, sunrise is at 05:59 and sunset at 18:00. On the last day of the month, sunrise is at 06:03 and sunset at 17:45 +07.

Sunshine

In Koh Chang, the average sunshine in October 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 estimate of 11, and higher, represents an extreme threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In October, a regular UV index of 12 translates into these guidelines:
Execute every important safeguard, as unprotected skin and eyes could burn within moments. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Even when the sky is cloudy, apply generously and frequently reapply a sunscreen with SPF 30 or more, especially post every swim or outdoor exercise. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.