Italy
Sicily in September: weather, sea & travel advice
This month's data profile
Sea conditions lead
Sicily in September is climatically well suited to beach holidays, family holidays and city breaks. The average daily high is around 29 °C, and the sea is about 25 °C. With about 8 rainy days it is moderate.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
83/100 · #2
Warmth
#4
Dryness
#6
Sun
#6
Sea warmth
#2
Published best categories: Overall, Beach, Family
Sicily · SeptemberPhoto: Krzysztof Popławski · CC BY-SA 4.0Climate facts
- Average high
- 29 °C
- Average low
- 18 °C
- Sea
- 25 °C
- Rainy days (est.)
- 8 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 64 %
For your trip planning
September: far less heat than August, among the best months
September in Sicily is among the best months both overall and for a beach holiday in our series. Average highs are well below August, though precipitation is about four times higher. Compared with October, it stays warmer by day and night and drier. With the sea still warm, swimming is plausible.
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 | 34 | 21 | 3 | 12 | 8.1 | 51 | 1.9 | 26 | 72 |
| September (selected) | 29 | 18 | 8 | 47 | 6.1 | 64 | 2.1 | 25 | 83 |
| October | 24 | 15 | 10 | 71 | 4.4 | 74 | 2.2 | 23 | 82 |
How do the previous and next months compare?
Baseline: September (83/100)
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 | -11 | +5.2 °C | +3.2 °C | -5.2 | -34.9 mm | +2 h | -13.4 % | -0.2 m/s | +1.2 °C |
| October | -1 | -4.8 °C | -3.6 °C | +1.6 | +23.8 mm | -1.7 h | +10.2 % | +0.1 m/s | -2.5 °C |
All twelve months in context
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Frequently asked questions
How warm is Sicily in September?
The average daily high is around 29 °C, with an average daily low of about 18 °C.
Can you swim in Sicily in September?
The sea is about 25 °C (warm).
Does it rain a lot in Sicily in September?
The curated estimate is about 8 rainy days per month, not a directly measured long-term average. Total precipitation averages around 47 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Sicily?
By the climate score, May, June, September and October are the strongest months for Sicily. For a beach trip: June, July, August and September. September is one of them.