Climate averages 1991–2020
Oakville weather
in June.
A warm, moderately wet month: the 3rd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Oakville: daytime highs average 22.4°C and nights cool to about 14.9°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 82 mm of rain on roughly 11 days, which makes June a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 21 min on an average June day.
The nearest other city in this atlas is Burlington (14 km away). In June its highs average 22.9°C, about as warm as Oakville, with 82 mm of rain.
Among the 86 cities listed in Canada, Oakville ranks joint 40th of 86 for the warmest June highs and joint 21st of 86 for the driest June (rainfall, lowest first). The mean June high of those 86 cities is 21.4°C; Oakville is 1.0°C warmer than that mean.
From June to July, average highs rise by 3.3°C to 25.7°C, and monthly rainfall falls from 82 mm to 74 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
Oakville climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.7°C-7.2°C | -7.2°C | 70 | 10.9 | 9.49 h |
| February | -0.2°C-7.8°C | -7.8°C | 56 | 8.7 | 10.510 h |
| March | 4.2°C-3.6°C | -3.6°C | 65 | 9.6 | 11.912 h |
| April | 10.3°C2.5°C | 2.5°C | 89 | 11.3 | 13.413 h |
| May | 16.8°C8.8°C | 8.8°C | 81 | 10.9 | 14.715 h |
| June, selected | 22.4°C14.9°C | 14.9°C | 82 | 11.3 | 15.415 h |
| July | 25.7°C18.4°C | 18.4°C | 74 | 10.1 | 15.115 h |
| August | 25.1°C18.2°C | 18.2°C | 66 | 9.4 | 14.014 h |
| September | 21.4°C14.7°C | 14.7°C | 75 | 9.1 | 12.513 h |
| October | 14.5°C8.5°C | 8.5°C | 83 | 11.1 | 11.111 h |
| November | 7.7°C2.4°C | 2.4°C | 77 | 10.2 | 9.710 h |
| December | 2.4°C-2.8°C | -2.8°C | 70 | 10.6 | 9.09 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
- Burlington in JuneCanada · 14 kmHigh 22.9°C · Low 14.8°C · 82 mm rain
- Mississauga in JuneCanada · 14 kmHigh 23.1°C · Low 14.2°C · 82 mm rain
- Milton in JuneCanada · 18 kmHigh 23.6°C · Low 14.6°C · 88 mm rain
- Etobicoke in JuneCanada · 23 kmHigh 22.6°C · Low 14.3°C · 77 mm rain
- Hamilton in JuneCanada · 26 kmHigh 22.9°C · Low 15.9°C · 86 mm rain
- Brampton in JuneCanada · 27 kmHigh 23.6°C · Low 13.8°C · 85 mm rain
- Stoney Creek in JuneCanada · 27 kmHigh 24.3°C · Low 15.1°C · 86 mm rain
- Toronto in JuneCanada · 37 kmHigh 21.5°C · Low 14.2°C · 77 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 Oakville) is explained once on the Oakville year overview and on the Sources, method and limits page.
Mississauga and Burlington lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.