Weather in Thailand for December 2025
In general, the average temperature in Thailand at the beginning of December is 28.1 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 29.3 °C by the end of December.
Thailand experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 121.4 mm.
Is December a good time to visit Thailand? check out the best time to travel to Thailand page.
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Thailand Weather December
What’s the Weather Like in Thailand This December?
Temperatures trend during December in Thailand
December weather in Thailand day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Moderate or heavy rain shower | 27° /24° | 7.4 mm | 6 | |
| 2 Dec. | Moderate or heavy rain shower | 29° /25° | 5.2 mm | 6 | |
| 3 Dec. | Moderate rain at times | 28° /24° | 4.8 mm | 6 | |
| 4 Dec. |  Light rain shower | 27° /24° | 8 mm | 6 | |
| 5 Dec. | Light rain shower | 28° /24° | 8.6 mm | 6 | |
| 6 Dec. | Patchy rain possible | 29° /24° | 1.7 mm | 7 | |
| 7 Dec. | Moderate or heavy rain shower | 29° /24° | 5.9 mm | 7 | |
| 8 Dec. | Patchy rain possible | 29° /24° | 4.6 mm | 7 | |
| 9 Dec. |  Partly cloudy | 29° /24° | 5.1 mm | 7 | |
| 10 Dec. |  Sunny | 28° /24° | 8.3 mm | 6 | |
| 11 Dec. |  Cloudy | 29° /24° | 5.6 mm | 6 | |
| 12 Dec. | Partly cloudy | 29° /24° | 1.2 mm | 7 | |
| 13 Dec. | Light rain shower | 29° /24° | 5.9 mm | 6 | |
| 14 Dec. | Cloudy | 28° /24° | 1.5 mm | 6 | |
| 15 Dec. | Moderate or heavy rain shower | 29° /24° | 5.8 mm | 6 | |
| 16 Dec. | Light rain shower | 29° /24° | 2.9 mm | 6 | |
| 17 Dec. | Moderate or heavy rain shower | 28° /24° | 5.2 mm | 6 | |
| 18 Dec. | Moderate or heavy rain shower | 29° /24° | 7.7 mm | 6 | |
| 19 Dec. | Patchy rain possible | 28° /24° | 5.2 mm | 6 | |
| 20 Dec. | Patchy rain possible | 29° /24° | 3.7 mm | 6 | |
| 21 Dec. | Patchy rain possible | 29° /24° | 2.9 mm | 6 | |
| 22 Dec. | Partly cloudy | 29° /23° | 1.3 mm | 7 | |
| 23 Dec. | Sunny | 29° /24° | 0 mm | 7 | |
| 24 Dec. |  Heavy rain at times | 28° /24° | 1.7 mm | 7 | |
| 25 Dec. | Light rain shower | 29° /23° | 4.9 mm | 6 | |
| 26 Dec. | Patchy rain possible | 29° /23° | 1.3 mm | 7 | |
| 27 Dec. | Patchy rain possible | 29° /24° | 1.1 mm | 7 | |
| 28 Dec. | Patchy rain possible | 30° /24° | 1 mm | 6 | |
| 29 Dec. | Patchy rain possible | 30° /24° | 0.6 mm | 7 | |
| 30 Dec. | Patchy rain possible | 29° /24° | 1.8 mm | 6 | |
| 31 Dec. | Partly cloudy | 29° /24° | 0.5 mm | 6 | |
| Next | |||||
Thailand weather in December vs November vs January
| November | December | January | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 28°/25° | 28°/24° | 29°/24° |
| Rainfall | 261 mm | 121 mm | 33 mm |
| Wind | 13.6 km/h | 15.8 km/h | 16.6 km/h |
| Humidity | 79% | 77% | 74% |
| Rainy days | 30 days | 28 days | 11 days |
| Dry days | 0 days | 3 days | 20 days |
Planning a trip to Thailand? Discover the best time to visit
Guide for Thailand in December
In December, Thailand experiences a pleasant and dry climate, making it an ideal time to visit. At the beginning of the month, northern regions such as Chiang Mai and Chiang Rai enjoy cool and comfortable temperatures, with average highs around 28° and lows around 15°.
The central regions, including Bangkok, also experience mild and dry weather, with temperatures averaging around 31° during the day and 23° at night.
The southern coastal areas, such as Phuket and Krabi, boast warm and sunny conditions, with temperatures reaching around 32° during the day and dropping to 24° at night.
As the month progresses, the weather in Thailand remains consistent, with slightly cooler temperatures in the northern regions, averaging around 25° during the day and 12° at night.
Central areas continue to enjoy mild weather, with temperatures hovering around 30° during the day and 22° at night. The southern coastal areas maintain their warm and sunny conditions, with temperatures ranging from 31° during the day to 23° at night.
Overall, December offers delightful weather throughout Thailand, making it an excellent time to explore the country's diverse landscapes and cultural attractions.
Thailand in December - FAQ
What to pack to Thailand in December?
As you prepare for your trip to Thailand in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Thailand, during December, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
December rainfall patterns in Thailand
UV exposure in Thailand during December
Quick links
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