Bentota weather in March

March in Bentota: sweltering, rainy, with muggy air — fine if you can take 18 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Bentota🇱🇰 Sri Lanka · Sri Lanka & the Maldives · Beach83
  1. 81Jan
  2. 87Feb
  3. 83Mar
  4. 77Apr
  5. 61May
  6. 72Jun
  7. 76Jul
  8. 74Aug
  9. 70Sep
  10. 63Oct
  11. 59Nov
  12. 75Dec

#2 of 12 months in Bentota · #384 of 1413 destinations to visit in March · comfort 83/100 (tier A)

Days
30°C
Nights
25°C
Wet days
18
Sun
10.4 h
Humidity
80%
Daylight
12 h
Bentota, Sri Lanka
Photo: Mohan Nannapaneni · Pexels

Traveller notes on Bentota in March

Notes from nearby Galle (48 km away)

Bentota doesn't have its own notes for March yet — these are about Galle, close enough to share the season.

February and March are the two months the forum names for Sri Lanka's south coast, from Beruwala down to Tangalle - among the sunniest of the island's year, with Galle in the middle of that stretch. Two qualifications travel with the recommendation. The sea in March is often rough even when the weather is fine, so swimming is not automatic; for snorkelling straight off the beach, Hikkaduwa, Mirissa and Polhena are the spots named. And the month breaks at the end, with good days turning to rain towards evening in late March. Our row is the sharper version of that caveat - 20.7 precipitation days carrying 127.7mm, a good deal more falling than dry season implies. The record: 31.3C days that feel like 38C, 25C nights, 10.6 hours of sun and a 29C sea.
RoughSeaEvenWhenFine · March · 1 month ago · about Galle · Read more on Tripadvisor ↗

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.
GalleCoastRegular · August · 1 month ago · Read more on Tripadvisor ↗
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.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Bentota's card on the map.

Bentota climate normals — March

Daytime high30°C / 87°F🔥 sweltering
Nighttime low25°C / 77°F
Feels like (high)37°C / 99°F
Sea temperature29°C / 85°F♨️ bath-warm
Rainfall139 mm / 5.5 in🌧 rainy
Rainy days18 days
Humidity80%💦 very humid
Dew point24°C / 74°F
Sunshine10.4 h/day
Daylight12.1 h
Wind9 km/h / 5 mph
Air quality (US AQI)86🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Bentota in March

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, February break in Sri Lanka, school holidays in 2 of the markets that fill it(estimated)

JFMAMJJASOND

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.

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Best weatherFair weatherToughest weather

What's on in Bentota in March

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Rule

    Poya days

    1 Jan – 31 DecClosures

    Every 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 early

    The 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.

What's on around the world in March →

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?

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Bentota in March — FAQ

Is March a good time to visit Bentota?
March in Bentota: sweltering, rainy, with muggy air — fine if you can take 18 rainy days. It ranks #2 of 12 months for Bentota on SeasonMap's comfort score (83/100).
What is the weather like in Bentota in March?
In March, Bentota averages a daily high of 30.4°C and a low of 24.9°C, with about 138.9 mm of rain over roughly 18 rainy days.
What is the air quality in Bentota in March?
Bentota has a mean US Air Quality Index of about 86 in March.

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.