Weather in St. John's
What's the weather like in St. John's?
St. John's has a wide swing between hot summers and cold winters and moderate rainfall spread across the year. Average daytime highs range from 1°C (34°F) in January to 19°C (66°F) in July, with overnight lows around -5°C (23°F) and 13°C (55°F) respectively.
For comfortable sightseeing temperatures (18–26°C daytime highs), the best months to visit St. John's are July through August.
Quick facts
- Country
- 🇨🇦 Canada
- Region
- North America
- Time zone
- America/St_Johns
- Coordinates
- 47.562, -52.713
Monthly climate
Long-run averages for each month of the year.
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 1°C / 34°F | -5°C / 23°F | 160 mm | 22 | — |
| February | 0°C / 32°F | -6°C / 20°F | 123 mm | 19 | — |
| March | 1°C / 34°F | -4°C / 24°F | 120 mm | 20 | — |
| April | 5°C / 41°F | -1°C / 31°F | 112 mm | 19 | — |
| May | 9°C / 49°F | 3°C / 37°F | 91 mm | 17 | — |
| June | 14°C / 58°F | 8°C / 46°F | 98 mm | 18 | — |
| July | 19°C / 66°F | 13°C / 55°F | 80 mm | 17 | — |
| August | 20°C / 68°F | 14°C / 58°F | 94 mm | 18 | — |
| September | 17°C / 62°F | 11°C / 52°F | 116 mm | 18 | — |
| October | 12°C / 53°F | 7°C / 44°F | 102 mm | 18 | — |
| November | 7°C / 45°F | 2°C / 35°F | 133 mm | 20 | — |
| December | 3°C / 37°F | -2°C / 28°F | 124 mm | 19 | — |
St. John's by month
Detailed weather for any specific month:
Cities with a similar climate to St. John's
Frequently asked questions
When is the best time to visit St. John's?
The most comfortable months in St. John's are usually July, August, September, when average highs sit near 18–26°C (64–79°F) with relatively little rain. See the full month-by-month breakdown for the exact figures.
What is the hottest month in St. John's?
August is typically the hottest month in St. John's, averaging a high of 20°C (68°F).
What is the coldest month in St. John's?
February is usually the coldest, with average lows around -6°C (20°F).
Does it snow in St. John's?
Snow is rare in St. John's; the climate data shows essentially no snowfall across the year.
Live forecast, sunrise/sunset, and more.