St. John's weather in January
January in St. John's: warm, a little rain, with clean air — one of the best months to visit.
#2 of 12 months in St. John's · #103 of 604 destinations to visit in January · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
St. John's climate normals — January
| Daytime high | 27°C / 80°F | 🌤 warm |
|---|---|---|
| Nighttime low | 24°C / 76°F | |
| Feels like (high) | 28°C / 82°F | |
| Rainfall | 32 mm / 1.3 in | 🌦 some rain |
| Rainy days | 12 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 11.2 h | |
| Wind | 29 km/h / 18 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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St. John's in January — FAQ
- Is January a good time to visit St. John's?
- January in St. John's: warm, a little rain, with clean air — one of the best months to visit. It ranks #2 of 12 months for St. John's on SeasonMap's comfort score (85/100).
- What is the weather like in St. John's in January?
- In January, St. John's averages a daily high of 26.5°C and a low of 24.4°C, with about 32.1 mm of rain over roughly 11.6 rainy days.
- What is the air quality in St. John's in January?
- St. John's has a mean US Air Quality Index of about 44 in January.