Ko Lanta Weather in December
December in Ko Lanta typically sees daytime highs of 30°C (86°F) and nighttime lows of 25°C (77°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Ko Lanta in December
You can typically expect 8 days of rain this month, averaging around 105 mm (4.1 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Ko Lanta in December
Daytime highs in Ko Lanta in December reach 30°C (86°F), with nights around 25°C (77°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights are warm at 25°C (77°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Ko Lanta in December
The area enjoys a moderate level of sunlight, with around 183 hours. It's a good balance between sunny and cloudy days.If you prefer dry days with pleasant temperatures, February typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Ko Lanta's climate page.
Ko Lanta Temperature in December
Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Chance of Rain
28%
Precipitation
105 mm (4.1 in)
Rainy days
8 days
Humidity
79%
Sunshine
183 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ko Lanta typically stay consistent throughout December, with daily highs averaging around 30°C (86°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 Ko Lanta in December
Browse day-by-day weather records for Ko Lanta spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ko Lanta historical weather extremes in December
Based on weather observations in Ko Lanta between 1976 and 2025, these are the recorded extremes during December.
- On December 22, 1977, temperatures climbed to 37°C (99°F), marking the warmest December day on record.
- The coldest December day was on December 15, 2005, with a maximum of 24°C (75°F).
- Nighttime temperatures dropped to 19°C (66°F) on December 25, 1999, marking the coldest December night on record.
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
What to Wear in Ko Lanta 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. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Ko Lanta 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 Ko Lanta's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ko Lanta climate overview or explore weather in Thailand.
