Naantali in December
3.8out of 10
Not the best time
Cold: highs around 1°C. Frequent rain: about 12 rainy days.
1°CAvg high
-3°CAvg low
12Rainy days (57 mm)
5:23 hDaylight
09:46Sunrise · 15:10 Sunset
Why this score
- Cold: highs around 1°C
- Frequent rain: about 12 rainy days
- Nights fall to about -3°C
- Rain varies a lot between years (±4.4 days)
What to wear and pack
- Winter coat, hat and scarf
- Rain jacket or compact umbrella
- Gloves for freezing mornings
How reliable is the forecast?
Rain in December varies a lot between years (±4.4 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -1°C | -6°C | 48 mm | 10 | – | – | 3.7 |
| February | -2°C | -7°C | 37 mm | 8 | – | – | 4.0 |
| March | 2°C | -5°C | 34 mm | 8 | – | – | 4.4 |
| April | 8°C | 0°C | 32 mm | 8 | – | – | 5.6 |
| May | 13°C | 4°C | 39 mm | 9 | – | – | 6.6 |
| June | 18°C | 9°C | 62 mm | 11 | – | – | 7.0 |
| July | 21°C | 13°C | 75 mm | 12 | – | – | 7.3 |
| August | 20°C | 12°C | 75 mm | 12 | – | – | 7.1 |
| September | 15°C | 8°C | 58 mm | 10 | – | – | 6.6 |
| October | 9°C | 4°C | 62 mm | 11 | – | – | 5.5 |
| November | 4°C | 0°C | 58 mm | 11 | – | – | 4.5 |
| December | 1°C | -3°C | 57 mm | 12 | – | – | 3.8 |
Frequently asked questions
How hot is Naantali in December?
Daytime highs average 1°C and nights about -3°C.
When is the best time to visit Naantali?
The best months are July, August, June.