Nai Harn Beach Weather in December
December in Nai Harn Beach averages 29°C (84°F) during the day and 26°C (79°F) at night. Quite a bit of rainfall is typical this month, with around 121 mm (4.8 in) on average. An umbrella is a good idea.
Rainfall in Nai Harn Beach in December
Looking at the last 30 years, the data shows about 9 days with rain, averaging 121 mm (4.8 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Nai Harn Beach in December
Daytime temperatures in Nai Harn Beach reach 29°C (84°F) in December, dropping to 26°C (79°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 26°C (79°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.
Sunshine in Nai Harn Beach in December
There are approximately 200 hours of sunshine this month, resulting in mostly clear days.If you're a fan of comfortable temperatures and drier conditions, December is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Nai Harn Beach's climate page.
Nai Harn Beach Temperature in December
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Chance of Rain
29%
Precipitation
121 mm (4.8 in)
Rainy days
9 days
Humidity
75% *
Sunshine
200 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Nai Harn Beach typically stay consistent throughout December, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Nai Harn Beach in December
Browse day-by-day weather records for Nai Harn Beach spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Nai Harn Beach historical weather extremes in December
Based on weather observations in Nai Harn Beach between 1976 and 2025, these are the recorded extremes during December.
- Nai Harn Beach recorded its highest December temperature of 39°C (102°F) on December 28, 2016.
- Nai Harn Beach experienced its chilliest December day on December 12, 1994, reaching only 22°C (72°F).
- The lowest overnight temperature recorded in December was 18°C (64°F) (December 6, 1976).
Best Places in Thailand in December
Find out more about the weather in Thailand and which places have the best travel conditions in this month. See all of Thailand in December →
perfect weather
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tolerable
unpleasant
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What to Wear in Nai Harn Beach in December
Warm weather calls for comfortable, breathable clothing in December. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Nai Harn Beach in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Nai Harn Beach's climate page.
Temperature Rainfall Sunshine Humidity
See the full Nai Harn Beach climate overview or explore weather in Thailand.
