Greece
Thessaloniki in December: weather, sea & travel advice
This month's data profile
Clear transition month
Thessaloniki in December is climatically mixed. The average daily high is around 10 °C, and the sea is about 15 °C. With about 9 rainy days it is moderate.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
37/100 · #11
Warmth
#11
Dryness
#12
Sun
#12
Sea warmth
#8
Published best categories: none
Thessaloniki · DecemberPhoto: Ωριγένης · CC BY-SA 3.0Climate facts
- Average high
- 10 °C
- Average low
- 3 °C
- Sea
- 15 °C
- Rainy days (est.)
- 9 rainy days (est.)
- Sun (est.)
- 2 h/day
- Humidity
- 83 %
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 | 15 | 7 | 8 | 50 | 2.6 | 79 | 2.1 | 18 | 52 |
| December (selected) | 10 | 3 | 9 | 61 | 2.0 | 83 | 2.3 | 15 | 37 |
| January | 9 | 1 | 8 | 45 | 2.4 | 82 | 2.3 | 14 | 36 |
How do the previous and next months compare?
Baseline: December (37/100)
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 | +15 | +5.1 °C | +4.3 °C | -0.3 | -10.8 mm | +0.6 h | -3.8 % | -0.2 m/s | +2.8 °C |
| January | -1 | -1.3 °C | -1.5 °C | -0.7 | -15.6 mm | +0.4 h | -0.7 % | ±0 m/s | -1.7 °C |
All twelve months in context
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Where to stay in Thessaloniki
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Useful next decisions
Frequently asked questions
How warm is Thessaloniki in December?
The average daily high is around 10 °C, with an average daily low of about 3 °C.
Can you swim in Thessaloniki in December?
The sea is about 15 °C (cold).
Does it rain a lot in Thessaloniki in December?
The curated estimate is about 9 rainy days per month, not a directly measured long-term average. Total precipitation averages around 61 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Thessaloniki?
By the climate score, May, June, September and October are the strongest months for Thessaloniki. For a beach trip: June, July, August and September. December is not among them.