Ko Pha-ngan weather in December
Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Good
Best time to visit: December – April
What is the weather like in Ko Pha-ngan in December?
In December, Ko Pha-ngan is warm: daytime highs average 25 °C, and even at night it stays warm at around 23 °C. The sea averages 28.0 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 146 mm in total. The air is often humid and muggy. All in all, December is a good month for a holiday in Ko Pha-ngan.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 68 | 76 | 83 |
| Day | 25° | 25° | 24° |
| Night | 23° | 23° | 23° |
| Sea | 29° | 28° | 28° |
| Sun | 5 h | 6 h | 7 h |
| Rain days | 21 | 13 | 8 |
More details for December
- Daylight
- 11 h 34 min06:28 – 18:02
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 24 km/haverage daily peakAll months
- Cloud cover
- 66 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+7Asia/Bangkok
How the score comes together
- Temperatureweight 35 %93 %
- Seaweight 25 %100 %
- Sunshineweight 20 %53 %
- Few rainy daysweight 20 %39 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in December
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Insect repellent
- Rain jacket or umbrella
Ko Pha-ngan in December: quick answers
Is Ko Pha-ngan hot in December?
Warm rather than hot: in December, daytime highs in Ko Pha-ngan average 25 °C and nights cool to about 23 °C.
Can you swim in Ko Pha-ngan in December?
Yes. In December the sea averages 28.0 °C – lovely and warm for swimming.
Does it rain much in Ko Pha-ngan in December?
Rain is frequent, with about 13 rainy days and 146 mm in total.
Ko Pha-ngan month by month
The whole year in Ko Pha-nganAll destinations: ThailandWhere to go in DecemberSea temperature in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences