Sea Temperature in Koh Samui in December

Complete information on the sea temperature range in the Gulf of Thailand in Koh Samui in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Koh Samui. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Koh Samui in December

26°C

MINIMUN

28°C

AVERAGE

30°C

MAXIMUM

Historical Data of Water Temperature in December in Koh Samui

Water Temperature Chart for Gulf of Thailand in Koh Samui in December

Sea Temperature Table in Koh Samui in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	29°C	28°C	28°C	28.3°C
Dec 2	29°C	28°C	28°C	28.3°C
Dec 3	28°C	28°C	28°C	28.0°C
Dec 4	28°C	28°C	29°C	28.3°C
Dec 5	29°C	27°C	29°C	28.3°C
Dec 6	28°C	27°C	29°C	28.0°C
Dec 7	28°C	28°C	29°C	28.3°C
Dec 8	28°C	28°C	27°C	27.5°C
Dec 9	28°C	28°C	28°C	28.3°C
Dec 10	28°C	28°C	28°C	28.0°C
Dec 11	28°C	28°C	29°C	28.3°C
Dec 12	29°C	28°C	28°C	28.3°C
Dec 13	28°C	28°C	27°C	27.8°C
Dec 14	28°C	29°C	28°C	28.3°C
Dec 15	28°C	29°C	28°C	28.3°C
Dec 16	28°C	28°C	27°C	27.8°C
Dec 17	28°C	29°C	27°C	28.0°C
Dec 18	27°C	29°C	29°C	28.3°C
Dec 19	28°C	28°C	28°C	28.0°C
Dec 20	27°C	28°C	27°C	27.5°C
Dec 21	28°C	28°C	27°C	27.8°C
Dec 22	28°C	29°C	27°C	28.0°C
Dec 23	28°C	28°C	27°C	27.5°C
Dec 24	27°C	29°C	27°C	27.8°C
Dec 25	28°C	29°C	28°C	28.3°C
Dec 26	28°C	28°C	27°C	27.8°C
Dec 27	27°C	28°C	27°C	27.5°C
Dec 28	27°C	29°C	27°C	27.8°C
Dec 29	27°C	28°C	27°C	27.5°C
Dec 30	27°C	28°C	27°C	27.5°C

Koh Samui Climate and Swimming Opportunities in December

30°C

Average Day Air Temperature

22°C

Average Night Air Temperature

192 mm

Precipitation Amount per Month

13 days

Number of Rainy Days

11 hrs

Daylight
per Day

6 hrs

Sunshine
per Day

7 km/h

Average Wind Speed

80%

Average
humidity

Koh Samui lies within the Surat Thani province in Thailand. The average daytime temperature in Koh Samui in December is 30°C (86°F), while the nighttime average is 22°C (72°F). There are typically 13 rainy days during the month, with a total precipitation of 192 mm (7.6 inches). The daylight duration in December in Koh Samui is 11 hours, with an average of 6 hours of sunshine per day. The average wind speed in December is 7 km/h (4 mph), and the humidity level is around 80%.

The water temperature in Koh Samui in December ranges from 27°C to 28°C (81°F to 82°F). At the beginning of the month, the average temperature is around 28°C (82°F), shifting to 28°C (82°F) by mid-December and reaching 28°C (82°F) in the last ten days. Overall, the average sea temperature in Koh Samui for December is 28°C (82°F). The water is almost like a bath, perfect for those who prefer very warm conditions. However, it may not be as refreshing on extremely hot days.

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in Koh Samui

What is the sea temperature in Koh Samui in December?

The water temperature in the Gulf of Thailand in Koh Samui in December ranges from 27°C to 28°C (81°F to 82°F).

Is it possible to swim in the Gulf of Thailand in Koh Samui in December?

The average sea temperature in Koh Samui in December is 28°C (82°F), and the air temperature is 30°C (86°F), so the water is almost like a bath, perfect for those who prefer very warm conditions. However, it may not be as refreshing on extremely hot days.