Koh Samui Weather in November

November in Koh Samui typically sees daytime highs of 29°C (84°F) and nighttime lows of 26°C (79°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Koh Samui in November

Looking at the last 30 years, the data shows about 19 days with rain, averaging 294 mm (12 in) for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Koh Samui in November

If you're visiting Koh Samui in November, expect highs of 29°C (84°F) and overnight lows around 26°C (79°F). Overall, the month follows a fairly predictable daily temperature pattern. With lows of 26°C (79°F), it stays warm throughout the night. A cold shower before going to sleep is one of the easiest ways to cool down before bed.

Sunshine in Koh Samui in November

With about 175 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Average water temperature in November

The water is 29°C (84°F), very warm by most standards. Comfortable to swim in, but not particularly refreshing if you're looking to cool off.

If you prefer dry days with pleasant temperatures, November may not be the ideal month to visit Koh Samui. Our weather planner can help you explore destinations with more pleasant weather conditions.