Terni in December
5.3out of 10
Not the best time
Cool: highs only around 9°C. Frequent rain: about 11 rainy days.
9°CAvg high
2°CAvg low
11Rainy days (107 mm)
8:53 hDaylight
07:39Sunrise · 16:32 Sunset
Why this score
- Cool: highs only around 9°C
- Frequent rain: about 11 rainy days
- Rain varies a lot between years (±5.4 days)
What to wear and pack
- A warm jacket
- Rain jacket or compact umbrella
- Gloves for freezing mornings
How reliable is the forecast?
Rain in December varies a lot between years (±5.4 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 | 8°C | 1°C | 71 mm | 10 | – | – | 5.4 |
| February | 9°C | 1°C | 82 mm | 10 | – | – | 5.5 |
| March | 12°C | 3°C | 92 mm | 11 | – | – | 6.0 |
| April | 16°C | 6°C | 98 mm | 13 | – | – | 6.2 |
| May | 20°C | 10°C | 83 mm | 11 | – | – | 7.2 |
| June | 25°C | 14°C | 53 mm | 9 | – | – | 7.9 |
| July | 28°C | 16°C | 30 mm | 6 | – | – | 8.3 |
| August | 29°C | 17°C | 33 mm | 6 | – | – | 8.3 |
| September | 23°C | 13°C | 82 mm | 10 | – | – | 7.8 |
| October | 18°C | 9°C | 105 mm | 11 | – | – | 6.9 |
| November | 13°C | 5°C | 129 mm | 12 | – | – | 5.7 |
| December | 9°C | 2°C | 107 mm | 11 | – | – | 5.3 |
Frequently asked questions
How hot is Terni in December?
Daytime highs average 9°C and nights about 2°C.
When is the best time to visit Terni?
The best months are July, August, June, September.