St. John's in December
3.4out of 10
Not the best time
Cold: highs around 2°C. Very wet: about 15 rainy days.
2°CAvg high
-2°CAvg low
15Rainy days (126 mm)
8:15 hDaylight
07:50Sunrise · 16:04 Sunset
Why this score
- Cold: highs around 2°C
- Very wet: about 15 rainy days
- Nights fall to about -2°C
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 (±3.2 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 | 0°C | -6°C | 125 mm | 14 | – | – | 3.0 |
| February | -1°C | -7°C | 103 mm | 13 | – | – | 3.3 |
| March | 1°C | -5°C | 105 mm | 13 | – | – | 3.4 |
| April | 5°C | -1°C | 86 mm | 13 | – | – | 4.4 |
| May | 9°C | 3°C | 73 mm | 11 | – | – | 5.5 |
| June | 13°C | 7°C | 66 mm | 10 | – | – | 6.3 |
| July | 18°C | 12°C | 78 mm | 10 | – | – | 7.1 |
| August | 19°C | 13°C | 80 mm | 10 | – | – | 7.3 |
| September | 16°C | 10°C | 92 mm | 11 | – | – | 6.7 |
| October | 11°C | 6°C | 106 mm | 13 | – | – | 5.5 |
| November | 7°C | 2°C | 110 mm | 14 | – | – | 4.6 |
| December | 2°C | -2°C | 126 mm | 15 | – | – | 3.4 |
Frequently asked questions
How hot is St. John's in December?
Daytime highs average 2°C and nights about -2°C.
When is the best time to visit St. John's?
The best months are August, July, September.