Climate averages 1991–2020
St. John's weather
in June.
A cool, moderately wet month: the 4th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a cool month in St. John's: daytime highs average 13.7°C and nights cool to about 7.0°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 66 mm of rain on roughly 11 days, which makes June a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 15 h 54 min on an average June day.
The nearest other city in this atlas is Sydney, Canada (590 km away). In June its highs average 16.8°C, 3.0°C warmer than St. John's, with 89 mm of rain.
Among the 86 cities listed in Canada, St. John's ranks 86th of 86 for the warmest June highs and 9th of 86 for the driest June (rainfall, lowest first). The mean June high of those 86 cities is 21.4°C; St. John's is 7.7°C cooler than that mean.
From June to July, average highs rise by 5.1°C to 18.9°C, and monthly rainfall rises from 66 mm to 78 mm.
The annual picture
June in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
St. John's climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.1°C-5.8°C | -5.8°C | 124 | 14.4 | 8.99 h |
| February | -0.5°C-6.4°C | -6.4°C | 103 | 12.9 | 10.210 h |
| March | 1.1°C-4.3°C | -4.3°C | 105 | 12.8 | 11.912 h |
| April | 4.7°C-0.6°C | -0.6°C | 87 | 12.2 | 13.614 h |
| May | 9.1°C2.6°C | 2.6°C | 72 | 11.1 | 15.115 h |
| June, selected | 13.7°C7.0°C | 7.0°C | 66 | 10.6 | 15.916 h |
| July | 18.9°C12.2°C | 12.2°C | 78 | 10.5 | 15.616 h |
| August | 19.6°C13.7°C | 13.7°C | 80 | 10.4 | 14.314 h |
| September | 16.3°C10.7°C | 10.7°C | 93 | 10.7 | 12.613 h |
| October | 11.1°C6.5°C | 6.5°C | 105 | 12.5 | 10.911 h |
| November | 6.8°C2.3°C | 2.3°C | 110 | 13.6 | 9.49 h |
| December | 2.5°C-2.0°C | -2.0°C | 127 | 15.3 | 8.59 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Sydney, Canada in JuneCanada · 590 kmHigh 16.8°C · Low 9.9°C · 89 mm rain
- Dartmouth in JuneCanada · 896 kmHigh 18.4°C · Low 11.2°C · 98 mm rain
- Halifax in JuneCanada · 898 kmHigh 16.8°C · Low 11.0°C · 98 mm rain
- Moncton in JuneCanada · 933 kmHigh 20.5°C · Low 11.5°C · 91 mm rain
- Saint John in JuneCanada · 1053 kmHigh 17.8°C · Low 11.0°C · 108 mm rain
- Saguenay in JuneCanada · 1366 kmHigh 20.7°C · Low 10.3°C · 100 mm rain
- Québec in JuneCanada · 1398 kmHigh 22.1°C · Low 12.6°C · 118 mm rain
- Sherbrooke in JuneCanada · 1485 kmHigh 21.8°C · Low 12.5°C · 131 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for St. John's) is explained once on the St. John's year overview and on the Sources, method and limits page.