India
Kerala in September: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Kerala in September 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
61/100 · #5
Warmth
#10
Dryness
#8
Sun
#6
Sea warmth
#10
Published best categories: none
Kerala · SeptemberPhoto: Vyacheslav Argenberg · CC BY 4.0Climate 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
- 88 %
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 |
|---|---|---|---|---|---|---|---|---|---|
| August | 27 | 25 | 26 | 339 | 5.6 | 89 | 3.1 | 27 | 61 |
| September (selected) | 28 | 25 | 21 | 271 | 6.3 | 88 | 2.8 | 28 | 61 |
| October | 28 | 25 | 25 | 358 | 6.0 | 85 | 2.2 | 29 | 57 |
How do the previous and next months compare?
Baseline: September (61/100)
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 | |
|---|---|---|---|---|---|---|---|---|---|
| August | ±0 | -0.5 °C | -0.2 °C | +5 | +67.9 mm | -0.7 h | +1.8 % | +0.3 m/s | -0.8 °C |
| October | -4 | +0.5 °C | +0.2 °C | +4 | +87.5 mm | -0.3 h | -2.2 % | -0.6 m/s | +0.9 °C |
All twelve months in context
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Where to stay in Kerala
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Useful next decisions
Frequently asked questions
How warm is Kerala in September?
The average daily high is around 28 °C, with an average daily low of about 25 °C.
Can you swim in Kerala in September?
The sea is about 28 °C (very warm).
Does it rain a lot in Kerala in September?
The curated estimate is about 21 rainy days per month, not a directly measured long-term average. Total precipitation averages around 271 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Kerala?
By the climate score, January, February, March and December are the strongest months for Kerala. For a beach trip: January, February, August and December. September is not among them.