Climate averages 1991–2020
Edmonton weather
in August.
A mild, moderately wet month: the 2nd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Edmonton: daytime highs average 21.7°C and nights cool to about 12.1°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 58 mm of rain on roughly 10 days, which makes August a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 49 min on an average August day.
The nearest other city in this atlas is Sherwood Park (11 km away). In August its highs average 21.0°C, 0.7°C cooler than Edmonton, with 59 mm of rain.
Among the 86 cities listed in Canada, Edmonton ranks 77th of 86 for the warmest August highs and 12th of 86 for the driest August (rainfall, lowest first). The mean August high of those 86 cities is 23.8°C; Edmonton is 2.1°C cooler than that mean.
From August to September, average highs fall by 5.0°C to 16.7°C, and monthly rainfall falls from 58 mm to 38 mm.
The annual picture
August 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
Edmonton climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -7.9°C-16.4°C | -16.4°C | 18 | 5.6 | 8.18 h |
| February | -4.9°C-14.4°C | -14.4°C | 11 | 3.4 | 9.810 h |
| March | 0.5°C-9.2°C | -9.2°C | 16 | 5.0 | 11.812 h |
| April | 9.4°C-1.7°C | -1.7°C | 32 | 6.5 | 14.014 h |
| May | 16.2°C5.2°C | 5.2°C | 53 | 8.3 | 15.916 h |
| June | 19.8°C10.3°C | 10.3°C | 86 | 13.3 | 16.917 h |
| July | 22.4°C13.0°C | 13.0°C | 88 | 13.3 | 16.516 h |
| August, selected | 21.7°C12.1°C | 12.1°C | 58 | 9.7 | 14.815 h |
| September | 16.7°C7.2°C | 7.2°C | 38 | 7.0 | 12.813 h |
| October | 8.9°C0.3°C | 0.3°C | 23 | 5.6 | 10.611 h |
| November | -0.7°C-8.3°C | -8.3°C | 21 | 5.6 | 8.79 h |
| December | -6.7°C-15.0°C | -15.0°C | 14 | 4.6 | 7.68 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
August in nearby cities
- Sherwood Park in AugustCanada · 11 kmHigh 21.0°C · Low 11.6°C · 59 mm rain
- Red Deer in AugustCanada · 144 kmHigh 21.4°C · Low 11.2°C · 67 mm rain
- Airdrie in AugustCanada · 253 kmHigh 21.4°C · Low 10.3°C · 68 mm rain
- Calgary in AugustCanada · 281 kmHigh 22.3°C · Low 10.1°C · 63 mm rain
- Grande Prairie in AugustCanada · 389 kmHigh 21.1°C · Low 11.2°C · 47 mm rain
- Lethbridge in AugustCanada · 430 kmHigh 25.2°C · Low 12.8°C · 35 mm rain
- Saskatoon in AugustCanada · 483 kmHigh 23.6°C · Low 13.2°C · 50 mm rain
- Kamloops in AugustCanada · 567 kmHigh 27.2°C · Low 15.3°C · 23 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 Edmonton) is explained once on the Edmonton year overview and on the Sources, method and limits page.