Summit in December
4.9out of 10
Not the best time
Cold: highs around 6°C. Frequent rain: about 10 rainy days.
6°CAvg high
0°CAvg low
10Rainy days (103 mm)
9:06 hDaylight
07:21Sunrise · 16:26 Sunset
Why this score
- Cold: highs around 6°C
- Frequent rain: about 10 rainy days
- Nights fall to about 0°C
What to wear and pack
- A warm jacket
- Rain jacket or compact umbrella
- Gloves for freezing mornings
How reliable is the forecast?
Rainfall in December is fairly consistent from year to year (2.7 days). 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 | 4°C | -4°C | 86 mm | 9 | – | – | 4.5 |
| February | 5°C | -3°C | 78 mm | 9 | – | – | 4.9 |
| March | 9°C | 1°C | 107 mm | 10 | – | – | 5.5 |
| April | 16°C | 7°C | 93 mm | 11 | – | – | 6.6 |
| May | 21°C | 13°C | 91 mm | 12 | – | – | 7.4 |
| June | 26°C | 18°C | 105 mm | 11 | – | – | 7.4 |
| July | 29°C | 21°C | 106 mm | 11 | – | – | 7.4 |
| August | 28°C | 20°C | 102 mm | 11 | – | – | 7.5 |
| September | 24°C | 16°C | 102 mm | 9 | – | – | 7.8 |
| October | 18°C | 10°C | 99 mm | 9 | – | – | 7.2 |
| November | 12°C | 4°C | 80 mm | 8 | – | – | 6.4 |
| December | 6°C | 0°C | 103 mm | 10 | – | – | 4.9 |
Frequently asked questions
How hot is Summit in December?
Daytime highs average 6°C and nights about 0°C.
When is the best time to visit Summit?
The best months are September, August, May, June.