Mae Nam Beach
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Mae Nam Beach Weather in December

December in Mae Nam Beach brings high temperatures, with daytime highs of 29°C (84°F) and nights around 26°C (79°F). Quite a bit of rainfall is expected, around 148 mm (5.8 in), so pack an umbrella.

Rainfall in Mae Nam Beach in December

You can typically expect 14 days of rain this month, averaging around 148 mm (5.8 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Mae Nam Beach in December

In December, Mae Nam Beach sees high temperatures, with highs of 29°C (84°F). Nights drop to around 26°C (79°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights are warm at 26°C (79°F), which can make sleeping uncomfortable. Keeping windows open or using a fan can help. A cold shower before bed is also a good way to cool down.

Sunshine in Mae Nam Beach in December

The city usually sees around 177 hours of sunlight, indicating a moderately sunny period.

Average water temperature in December

The water reaches 29°C (84°F) this month. It's on the warm side, which suits people who prefer that, but don't expect a cooling dip if the air temperature is also high.

Should you favor a climate that's both dry and comfortably warm, January and February typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Mae Nam Beach Temperature in December

Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Water Temperature
29°C (84°F) *
Chance of Rain
45%
Precipitation
148 mm (5.8 in)
Rainy days
14 days
Humidity
82% *
Sunshine
177 hours *
Percentage Sunshine
*
* Data from: Koh Samui, Thailand (8 KM, 5 Miles).

Mae Nam Beach Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Mae Nam Beach - and find the best time to visit.

Daily Historical Temperatures

48-year average (1976-2025)

Based on our historical records, temperatures in Mae Nam Beach typically stay consistent throughout December, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 25°C (77°F).

Average temperatures in December

Daily Historical Precipitation

48-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in December

Historical weather records for Mae Nam Beach in December

Browse day-by-day weather records for Mae Nam Beach spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Mae Nam Beach historical weather extremes in December

Based on 39 years of weather observations in Mae Nam Beach between 1986 and 2025, these are the recorded extremes.

  • On December 11, 2023, temperatures climbed to 34°C (93°F), marking the warmest December day on record.
  • The coldest December day was on December 25, 1999, with a maximum of 24°C (75°F).
  • The lowest overnight temperature recorded in December was 20°C (68°F) (December 21, 1999).

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
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Mae Nam 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. The water temperature sits at about 29°C (84°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Mae Nam Beach in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    7/10
  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    7/10
  • Outdoor sports
    7/10

Mae Nam Beach 3-Day Forecast

More climate data for Mae Nam Beach

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.