Climate averages 1991–2020
Regina weather
in September.
A mild, moderately wet month: the 4th warmest and the 8th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Regina: daytime highs average 18.3°C and nights cool to about 8.2°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 40 mm of rain on roughly 7 days, which makes September a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 41 min on an average September day.
The nearest other city in this atlas is Saskatoon (235 km away). In September its highs average 18.1°C, about as warm as Regina, with 38 mm of rain.
Among the 86 cities listed in Canada, Regina ranks 73rd of 86 for the warmest September highs and joint 7th of 86 for the driest September (rainfall, lowest first). The mean September high of those 86 cities is 19.8°C; Regina is 1.5°C cooler than that mean.
From September to October, average highs fall by 8.9°C to 9.4°C, and monthly rainfall falls from 40 mm to 33 mm.
The annual picture
September 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
Regina climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -9.0°C-18.3°C | -18.3°C | 17 | 5.3 | 8.59 h |
| February | -6.4°C-15.9°C | -15.9°C | 12 | 3.5 | 10.010 h |
| March | 0.6°C-9.5°C | -9.5°C | 21 | 5.9 | 11.812 h |
| April | 9.7°C-1.8°C | -1.8°C | 35 | 7.3 | 13.814 h |
| May | 16.7°C4.9°C | 4.9°C | 62 | 9.6 | 15.415 h |
| June | 20.9°C10.8°C | 10.8°C | 98 | 12.7 | 16.416 h |
| July | 24.0°C13.7°C | 13.7°C | 74 | 10.5 | 16.016 h |
| August | 24.0°C13.2°C | 13.2°C | 61 | 8.5 | 14.515 h |
| September, selected | 18.3°C8.2°C | 8.2°C | 40 | 6.7 | 12.713 h |
| October | 9.4°C0.7°C | 0.7°C | 33 | 6.4 | 10.811 h |
| November | 0.0°C-7.6°C | -7.6°C | 22 | 5.2 | 9.19 h |
| December | -6.8°C-14.9°C | -14.9°C | 17 | 5.0 | 8.18 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
September in nearby cities
- Saskatoon in SeptemberCanada · 235 kmHigh 18.1°C · Low 8.1°C · 38 mm rain
- Bismarck in SeptemberUnited States · 493 kmHigh 21.4°C · Low 10.9°C · 46 mm rain
- Winnipeg in SeptemberCanada · 536 kmHigh 18.5°C · Low 9.4°C · 68 mm rain
- Lethbridge in SeptemberCanada · 591 kmHigh 19.7°C · Low 8.3°C · 37 mm rain
- Billings in SeptemberUnited States · 593 kmHigh 23.7°C · Low 10.4°C · 35 mm rain
- Airdrie in SeptemberCanada · 667 kmHigh 16.6°C · Low 5.8°C · 45 mm rain
- Red Deer in SeptemberCanada · 668 kmHigh 16.6°C · Low 6.3°C · 41 mm rain
- Calgary in SeptemberCanada · 669 kmHigh 17.5°C · Low 5.6°C · 44 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 Regina) is explained once on the Regina year overview and on the Sources, method and limits page.