SeasonMapSt. John's, Newfoundland (St. John's) weather in December
Canada
December in St. John's, Newfoundland: freezing, rainy, with clean air — one of the weakest months to visit.
#11 of 12 months in St. John's, Newfoundland · #1292 of 1383 destinations to visit in December · comfort 36/100 (tier F)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on St. John's, Newfoundland in December
Other months in St. John's, Newfoundland
Newfoundland's forum calls late July into August the best chance for good weather, typically around 20°C but genuinely variable — anything from a cool, wet day to full sun. Regulars are consistent that Newfoundland is rarely hot and often feels cooler than the number suggests thanks to the wind, so a rain coat and layers matter more than a summer wardrobe.
Add your own note from St. John's, Newfoundland's card on the map.
St. John's, Newfoundland climate normals — December
| Daytime high | 3°C / 38°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -3°C / 26°F | |
| Feels like (high) | -2°C / 28°F | |
| Sea temperature | 3°C / 37°F | 🥶 cold sea |
| Rainfall | 126 mm / 5 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | -3°C / 27°F | |
| Sunshine | 3.6 h/day | |
| Daylight | 8.5 h | |
| Wind | 33 km/h / 21 mph | |
| Snowfall | 34.6 cm / 13.6 in | |
| Air quality (US AQI) | 36 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in St. John's, Newfoundland in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyWinter / Christmas break in Canada, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for St. John's, Newfoundland's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherSt. John's, Newfoundland's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in St. John's, Newfoundland in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Snow season
Ski seasonAbout 35 cm of snow falls in the month.
from the climate normals
Where is St. John's, Newfoundland?
St. John's, Newfoundland in December — FAQ
- Is December a good time to visit St. John's, Newfoundland?
- December in St. John's, Newfoundland: freezing, rainy, with clean air — one of the weakest months to visit. It ranks #11 of 12 months for St. John's, Newfoundland on SeasonMap's comfort score (36/100).
- What is the weather like in St. John's, Newfoundland in December?
- In December, St. John's, Newfoundland averages a daily high of 3.4°C and a low of -3.4°C, with about 126.1 mm of rain over roughly 15.5 rainy days.
- What is the air quality in St. John's, Newfoundland in December?
- St. John's, Newfoundland has a mean US Air Quality Index of about 36 in December.
- Does it snow in St. John's, Newfoundland in December?
- St. John's, Newfoundland sees roughly 34.6 cm of snowfall in December.