SeasonMapSt. John's, Newfoundland (St. John's) weather in June
Canada
June in St. John's, Newfoundland: nice, rainy, with clean air — an excellent time to visit.
#3 of 12 months in St. John's, Newfoundland · #758 of 1383 destinations to visit in June · comfort 80/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on St. John's, Newfoundland in June
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 — June
| Daytime high | 18°C / 64°F | 😎 nice |
|---|---|---|
| Nighttime low | 7°C / 45°F | |
| Feels like (high) | 16°C / 61°F | |
| Sea temperature | 5°C / 40°F | 🥶 cold sea |
| Rainfall | 81 mm / 3.2 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 9°C / 48°F | |
| Sunshine | 8.3 h/day | |
| Daylight | 15.9 h | |
| Wind | 24 km/h / 15 mph | |
| Snowfall | 0.6 cm / 0.2 in | |
| Air quality (US AQI) | 32 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in St. John's, Newfoundland in June
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.
BusySummer 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).
Best weatherSt. John's, Newfoundland's weather peaks June–August, best around July.
June includes Iceberg season.
Best weatherFair weatherToughest weather
What's on in St. John's, Newfoundland in June
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Iceberg season
1 May – 10 Jul · usuallyBergs calved off Greenland drift down the coast and ground in the shallows, usually most numerous from late May to mid-June. Some years bring dozens past Cape Spear and some bring almost none. Source ↗
- Nature
Puffins at Witless Bay
15 May – 15 Aug · usuallyBirdlife seasonHundreds of thousands of puffins and murres nest on the islands half an hour south of town, reachable on a two-hour boat that usually finds whales on the same trip.
- Season
Fog season
15 May – 31 Jul · usuallyRiskWarm air over the cold Labrador current makes this one of the foggiest places anywhere, worst in late spring and early summer. Signal Hill vanishes for days and the icebergs are somewhere in it.
- Nature
Humpbacks and the capelin roll
1 Jun – 31 Aug · usuallyWhale seasonHumpbacks follow the capelin inshore in June and stay through the summer. The capelin themselves spawn onto the beaches in a few days somewhere around the turn of July, and people fill buckets.
Where is St. John's, Newfoundland?
St. John's, Newfoundland in June — FAQ
- Is June a good time to visit St. John's, Newfoundland?
- June in St. John's, Newfoundland: nice, rainy, with clean air — an excellent time to visit. It ranks #3 of 12 months for St. John's, Newfoundland on SeasonMap's comfort score (80/100).
- What is the weather like in St. John's, Newfoundland in June?
- In June, St. John's, Newfoundland averages a daily high of 17.9°C and a low of 7.1°C, with about 81.4 mm of rain over roughly 11.2 rainy days.
- What is the air quality in St. John's, Newfoundland in June?
- St. John's, Newfoundland has a mean US Air Quality Index of about 32 in June.