The climate in Estevan during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Estevan and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 20°C (67°F), whilst at night 6°C (42°F) is normal.
| Daytime temperature | 19.6°C 67.2°F |
|---|---|
| Nightly temperature | 5.5°C 41.8°F |
| Average temperature | 12.5°C 54.5°F |
| Daily sunshine | 7.8 hrs |
| Avg rainfall | 43 mm 1.7 ins |
| Rainy days | 8 days |
| Sea temperature | 12.9°C 55.3°F |
| Humidity | 66% |
| Windspeed | 18kph 11 mph |
On average September is the 5th wettest month of the year in Estevan with around 43mm 1.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.8 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Estevan in September 2025.
Best places to visit in September
| Hottest month: | July | 27.2°C 81°F |
|---|---|---|
| Driest month: | November | 14mm 0.6ins |
| Sunniest month: | July | 12.3hrs |
| Coldest month: | January | -9.7°C 14.5°F |
| Wettest month: | June | 67mm 2.6ins |