St. John's weather in October
October in St. John's: hot, rainy, with clean air — a great time to visit.
#12 of 12 months in St. John's · #276 of 604 destinations to visit in October · comfort 79/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
St. John's climate normals — October
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Feels like (high) | 33°C / 91°F | |
| Rainfall | 130 mm / 5.1 in | 🌧 rainy |
| Rainy days | 18 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 11.7 h | |
| Wind | 28 km/h / 17 mph | |
| Air quality (US AQI) | 41 | 🍃 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 October — FAQ
- Is October a good time to visit St. John's?
- October in St. John's: hot, rainy, with clean air — a great time to visit. It ranks #12 of 12 months for St. John's on SeasonMap's comfort score (79/100).
- What is the weather like in St. John's in October?
- In October, St. John's averages a daily high of 28.8°C and a low of 26.6°C, with about 130.2 mm of rain over roughly 17.6 rainy days.
- What is the air quality in St. John's in October?
- St. John's has a mean US Air Quality Index of about 41 in October.