Sri Lanka
Sri Lanka in August: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Sri Lanka in August is climatically well suited to beach holidays. The average daily high is around 28 °C, and the sea is about 28 °C. With about 21 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
62/100 · #3
Warmth
#11
Dryness
#4
Sun
#4
Sea warmth
#12
Published best categories: Overall, Beach, Family
Sri Lanka · AugustPhoto: Luboš Holič · CC BY-SA 3.0Climate facts
- Average high
- 28 °C
- Average low
- 25 °C
- Sea
- 28 °C
- Rainy days (est.)
- 21 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 86 %
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 |
|---|---|---|---|---|---|---|---|---|---|
| July | 28 | 25 | 21 | 110 | 6.0 | 86 | 4.6 | 28 | 61 |
| August (selected) | 28 | 25 | 21 | 122 | 6.2 | 86 | 4.5 | 28 | 62 |
| September | 28 | 25 | 23 | 169 | 6.2 | 85 | 4.3 | 28 | 60 |
How do the previous and next months compare?
Baseline: August (62/100)
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 | |
|---|---|---|---|---|---|---|---|---|---|
| July | -1 | ±0 °C | +0.1 °C | +0.8 | -11.7 mm | -0.2 h | +0.3 % | +0.1 m/s | +0.1 °C |
| September | -2 | +0.2 °C | +0.1 °C | +2.3 | +47.5 mm | ±0 h | -0.8 % | -0.2 m/s | +0.3 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Sri Lanka in August?
The average daily high is around 28 °C, with an average daily low of about 25 °C.
Can you swim in Sri Lanka in August?
The sea is about 28 °C (very warm).
Does it rain a lot in Sri Lanka in August?
The curated estimate is about 21 rainy days per month, not a directly measured long-term average. Total precipitation averages around 122 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. August is one of them.