Bentota weather in January
January in Bentota: sweltering, soaked, with muggy air — fine if you can take 16 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#3 of 12 months in Bentota · #441 of 1413 destinations to visit in January · comfort 81/100 (tier A)
- Days
- 29°C
- Nights
- 24°C
- Wet days
- 16
- Sun
- 9.6 h
- Humidity
- 80%
- Daylight
- 12 h

Traveller notes on Bentota in January
Notes from nearby Galle (48 km away)
Bentota doesn't have its own notes for January yet — these are about Galle, close enough to share the season.
Our row for Galle counts 16.8 precipitation days in January, which looks like the wrong month entirely until regulars explain the timing. On this south coast you can expect three or four afternoons of heavy rain in a stay, and it arrives late: clouding up around half past four or five, with the serious storms after six once it is dark. The days work; the evenings get wet. January to March is the stretch they name for calm seas and good weather on the south and west coasts, with the dry season running Christmas to mid-April - though they are honest that December onwards has been wetter than the label suggests. Heat is the other factor: 29.8C over 24C at 83 percent humidity and almost no wind reads as 36C. The record: 148.6mm, 9.8 hours of sun and a 27.8C sea.
Other months in Bentota
Bentota forum threads describe August as bright and sunny most mornings, with cloud building through the afternoon and a real chance of showers by evening - not an all-day washout, but genuinely wet stretches happen too, and this coast sees frequent rain days through the month. The monsoon's bigger effect here is on the sea rather than the sky: ocean swimming turns unreliable due to rough surf and strong currents, though Bentota's sheltered lagoon and river keep watersports viable even on rough-ocean days. Forum consensus was that this window is still workable for a trip, just with beach plans built around the lagoon rather than open water.
Forum posters place February squarely within Sri Lanka's preferred southwest-coast season (mid-December to mid-April, plus July to mid-September), and call it typically a drier month overall. That said, posters are candid the weather can still flip within a single day - sunny for hours, then an hour or two of genuine downpour - so a light rain jacket is standard advice even during the 'dry' stretch. Wind is described as generally mild in February, with just a light, steady sea breeze rather than the stronger gusts some other months bring, making conditions comfortable for beach time along this stretch of coast.
Add your own note from Bentota's card on the map.
Bentota climate normals — January
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Bentota in January
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsSouthwest coast beach season, Year-end break in Sri Lanka, school holidays in 6 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Bentota's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherBentota's weather peaks January–March, best around February.
Best weatherFair weatherToughest weather
What's on in Bentota in January
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Poya days
1 Jan – 31 DecClosuresEvery full moon is a civil holiday and the sale of alcohol is prohibited islandwide, hotel bars included. There are thirteen or fourteen a year, so one will land on most trips. Source ↗
- Season
Southwest coast beach season
1 Dec – 31 Mar · usuallyDry seasonCrowdedBook earlyThe rains ease and the sea flattens enough for the river-mouth watersports operators to run every day. This is when the resort strip is full and priced accordingly, with the peak over Christmas and New Year.
Nearby, and something's on
Within 300 km of Bentota — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Bentota?
Bentota in January — FAQ
- Is January a good time to visit Bentota?
- January in Bentota: sweltering, soaked, with muggy air — fine if you can take 16 rainy days. It ranks #3 of 12 months for Bentota on SeasonMap's comfort score (81/100).
- What is the weather like in Bentota in January?
- In January, Bentota averages a daily high of 29.4°C and a low of 23.7°C, with about 156.3 mm of rain over roughly 15.8 rainy days.
- What is the air quality in Bentota in January?
- Bentota has a mean US Air Quality Index of about 93 in January.
Within 300 km: Colombo's Blue whales off Mirissa around 1 Nov – 15 Apr, and Mirissa's Blue whale season on 1 Nov – 15 Apr.