Bentota 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: January – April
What is the weather like in Bentota in December?
In December, Bentota is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 28.3 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 19 days, totalling 220 mm. The air is often humid and muggy. All in all, December is a good month for a holiday in Bentota.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 67 | 70 | 84 |
| Day | 29° | 29° | 29° |
| Night | 24° | 24° | 23° |
| Sea | 29° | 28° | 28° |
| Sun | 5 h | 6 h | 8 h |
| Rain days | 24 | 19 | 12 |
More details for December
- Daylight
- 11 h 45 min06:13 – 17:58
- UV index
- 10 · very highclear sky, noon (estimate)
- Muggy days
- 31 daysdew point 18 °C or more
- Wind
- 12 km/haverage daily peak
- Cloud cover
- 71 %on average
- Hot days
- 1 day30 °C or more
- Time zone
- UTC+5:30Asia/Colombo
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %52 %
- Few rainy daysweight 20 %0 %
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
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Bentota in December: quick answers
Is Bentota hot in December?
Yes. In December, Bentota is hot: daytime highs average 29 °C and nights stay around 24 °C. On about 1 days the thermometer climbs to 30 °C or more.
Can you swim in Bentota in December?
Yes. In December the sea averages 28.3 °C – lovely and warm for swimming.
Does it rain much in Bentota in December?
It rains often – on about 19 days, adding up to 220 mm.
Bentota month by month
The whole year in BentotaAll destinations: Sri Lanka
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)