Sri Lanka
Sri Lanka in March: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Sri Lanka in March is climatically well suited to beach holidays. The average daily high is around 31 °C, and the sea is about 29 °C. With about 17 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
58/100 · #7
Warmth
#1
Dryness
#3
Sun
#1
Sea warmth
#3
Published best categories: none
Sri Lanka · MarchPhoto: Luboš Holič · CC BY-SA 3.0Climate facts
- Average high
- 31 °C
- Average low
- 25 °C
- Sea
- 29 °C
- Rainy days (est.)
- 17 rainy days (est.)
- Sun (est.)
- 7 h/day
- Humidity
- 76 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| February | 30 | 24 | 11 | 76 | 7.1 | 76 | 2.1 | 28 | 70 |
| March (selected) | 31 | 25 | 17 | 113 | 7.4 | 76 | 1.9 | 29 | 58 |
| April | 30 | 26 | 25 | 207 | 6.9 | 82 | 2.5 | 30 | 52 |
How do the previous and next months compare?
Baseline: March (58/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| February | +12 | -0.6 °C | -1.2 °C | -5.6 | -37.3 mm | -0.3 h | -0.1 % | +0.1 m/s | -0.8 °C |
| April | -6 | -0.7 °C | +1 °C | +8.7 | +94.6 mm | -0.5 h | +5.3 % | +0.5 m/s | +0.6 °C |
All twelve months in context

Find a place to stay
Where to stay in Sri Lanka
Compare available stays, prices and cancellation terms for Sri Lanka on Booking.com.
Booking.comFind places to stayAffiliate link: there is no extra cost to you.
Useful next decisions
Frequently asked questions
How warm is Sri Lanka in March?
The average daily high is around 31 °C, with an average daily low of about 25 °C.
Can you swim in Sri Lanka in March?
The sea is about 29 °C (very warm).
Does it rain a lot in Sri Lanka in March?
The curated estimate is about 17 rainy days per month, not a directly measured long-term average. Total precipitation averages around 113 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Sri Lanka?
By the climate score, January, February, July and August are the strongest months for Sri Lanka. For a beach trip: January, February, July and August. March is not among them.