Thailand (Koh Samui) · December
Low seasonThailand · Asia
Max Temp
30.2°C
Min Temp
25.1°C
Sunshine
6.2 h/day
Rain Days
11 days
Water Temp
28°C
Rainfall
310.1 mm
Humidity
79%
Avg Temp
27.7°C
Off-season — lowest travel prices with still acceptable climate.
December in Thailand (Koh Samui) is generally manageable, but with 11 rain days it's not a reliably sunny month. Better conditions can be found in February, March, April, and August.
Daytime temperatures reach up to 30°C, cooling to 25°C at night (daily average: 28°C). The sun shines an average of 6 hours per day; there are 11 rain days with 310 mm total. The water is a warm 28°C — perfect for snorkelling and swimming.
A jacket for cool evenings should not be left behind. Sightseeing and excursions can be enjoyed at this time of year without the heat.
Packing list for Thailand (Koh Samui) in December
- Leichte Sommersachen
- Badezeug und Strandtuch
- Sonnencreme
- Sonnenbrille
- Leichter Regenschirm oder Regenponcho
- Insektenschutzmittel
- Reiseapotheke
Frequently Asked Questions
- Is December a good time to visit Thailand (Koh Samui)?
- December is not an optimal month for Thailand (Koh Samui) (Score: 63/100), but it is manageable. For better conditions, consider February, March, April, and August.
- How warm is it in Thailand (Koh Samui) in December?
- In December, Thailand (Koh Samui) sees daily highs of 30°C. Nights cool to 25°C, with a daily average of 28°C.
- How much rain falls in Thailand (Koh Samui) in December?
- In December, Thailand (Koh Samui) receives an average of 310 mm of rain over 11 rain days. An umbrella may occasionally be needed.
- How many sunshine hours does Thailand (Koh Samui) get in December?
- Thailand (Koh Samui) averages 6 sunshine hours per day in December — below the annual average.
- How warm is the water in Thailand (Koh Samui) in December?
- Water temperature in Thailand (Koh Samui) in December averages 28°C — ideal for swimming and snorkelling.
