Italy
Sicily in December: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Sicily in December is climatically mixed. The average daily high is around 14 °C, and the sea is about 17 °C. With about 12 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
40/100 · #11
Warmth
#10
Dryness
#12
Sun
#12
Sea warmth
#8
Published best categories: none
Sicily · DecemberPhoto: Krzysztof Popławski · CC BY-SA 4.0Climate facts
- Average high
- 14 °C
- Average low
- 7 °C
- Sea
- 17 °C
- Rainy days (est.)
- 12 rainy days (est.)
- Sun (est.)
- 3 h/day
- Humidity
- 84 %
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 |
|---|---|---|---|---|---|---|---|---|---|
| November | 19 | 10 | 12 | 82 | 3.1 | 81 | 2.6 | 20 | 58 |
| December (selected) | 14 | 7 | 12 | 79 | 2.5 | 84 | 2.8 | 17 | 40 |
| January | 13 | 5 | 11 | 65 | 2.9 | 83 | 2.7 | 15 | 39 |
How do the previous and next months compare?
Baseline: December (40/100)
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 | |
|---|---|---|---|---|---|---|---|---|---|
| November | +18 | +4.2 °C | +3.5 °C | -0.1 | +3.4 mm | +0.6 h | -2.5 % | -0.2 m/s | +2.9 °C |
| January | -1 | -1.2 °C | -1.6 °C | -1 | -14.2 mm | +0.4 h | -0.2 % | ±0 m/s | -1.5 °C |
All twelve months in context

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Useful next decisions
Frequently asked questions
How warm is Sicily in December?
The average daily high is around 14 °C, with an average daily low of about 7 °C.
Can you swim in Sicily in December?
The sea is about 17 °C (cold).
Does it rain a lot in Sicily in December?
The curated estimate is about 12 rainy days per month, not a directly measured long-term average. Total precipitation averages around 79 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. December is not among them.