Italy
Naples in December: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Naples in December is climatically mixed. The average daily high is around 12 °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
36/100 · #11
Warmth
#10
Dryness
#11
Sun
#12
Sea warmth
#8
Published best categories: none
Naples · DecemberPhoto: Sergey Ashmarin · CC BY-SA 3.0Climate facts
- Average high
- 12 °C
- Average low
- 6 °C
- Sea
- 17 °C
- Rainy days (est.)
- 12 rainy days (est.)
- Sun (est.)
- 2 h/day
- Humidity
- 85 %
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 | 16 | 9 | 14 | 111 | 2.4 | 83 | 2.2 | 19 | 47 |
| December (selected) | 12 | 6 | 12 | 81 | 2.0 | 85 | 2.3 | 17 | 36 |
| January | 11 | 4 | 11 | 75 | 2.2 | 85 | 2.2 | 15 | 33 |
How do the previous and next months compare?
Baseline: December (36/100)
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 | +11 | +4.1 °C | +3.6 °C | +2 | +30.3 mm | +0.4 h | -2.3 % | -0.1 m/s | +2.5 °C |
| January | -3 | -1.3 °C | -1.3 °C | -0.5 | -6.3 mm | +0.2 h | +0.2 % | ±0 m/s | -1.8 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Naples in December?
The average daily high is around 12 °C, with an average daily low of about 6 °C.
Can you swim in Naples in December?
The sea is about 17 °C (cold).
Does it rain a lot in Naples in December?
The curated estimate is about 12 rainy days per month, not a directly measured long-term average. Total precipitation averages around 81 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Naples?
By the climate score, May, June, July and September are the strongest months for Naples. For a beach trip: June, July, August and September. December is not among them.