St. John's weather in July
July in St. John's: hot, rainy, with very humid — an excellent time to visit.
#8 of 12 months in St. John's · #251 of 604 destinations to visit in July · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
St. John's climate normals — July
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Feels like (high) | 32°C / 90°F | |
| Rainfall | 81 mm / 3.2 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 24°C / 74°F | |
| Sunshine | 11.7 h/day | |
| Daylight | 13 h | |
| Wind | 33 km/h / 20 mph | |
| Air quality (US AQI) | 62 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is St. John's?
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St. John's in July — FAQ
- Is July a good time to visit St. John's?
- July in St. John's: hot, rainy, with very humid — an excellent time to visit. It ranks #8 of 12 months for St. John's on SeasonMap's comfort score (82/100).
- What is the weather like in St. John's in July?
- In July, St. John's averages a daily high of 29°C and a low of 26.5°C, with about 81.3 mm of rain over roughly 16.6 rainy days.
- What is the air quality in St. John's in July?
- St. John's has a mean US Air Quality Index of about 62 in July.