Edmonton weather in September
September is one of the best months to visit Edmonton: highs of 17°C (63°F) and about 41 mm (1.6 in) of rain on average. Nights average 5°C (41°F) and cloud cover 60% (NASA POWER, 2001–2025 averages). It is the 5th wettest month of the year and the 4th warmest. Compared with August, it is cooler and drier; October brings highs of 9°C (47°F) and 29 mm (1.1 in) of rain.
Is September a good time to visit Edmonton?
best month Weather score 72/100.
Yes. September is one of the best months for weather in Edmonton.
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Does it rain a lot in Edmonton in September?
No, it is usually dry: about 41 mm (1.6 in) falls in an average September. It is the 5th wettest month of the year.
How warm is Edmonton in September?
Days average 17°C (63°F) and nights 5°C (41°F).
Edmonton weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | -6°C (21°F) | -14°C (6°F) | 22 mm | 71% | least pleasant |
| February | -5°C (24°F) | -14°C (7°F) | 18 mm | 69% | least pleasant |
| March | 1°C (34°F) | -9°C (16°F) | 27 mm | 72% | least pleasant |
| April | 10°C (49°F) | -2°C (28°F) | 40 mm | 69% | least pleasant |
| May | 17°C (62°F) | 4°C (40°F) | 64 mm | 63% | fair |
| June | 20°C (69°F) | 9°C (49°F) | 85 mm | 65% | best |
| July | 24°C (74°F) | 12°C (54°F) | 95 mm | 56% | best |
| August | 23°C (73°F) | 10°C (51°F) | 55 mm | 58% | best |
| September | 17°C (63°F) | 5°C (41°F) | 41 mm | 60% | best |
| October | 9°C (47°F) | -1°C (29°F) | 29 mm | 68% | least pleasant |
| November | 0°C (31°F) | -8°C (18°F) | 26 mm | 76% | least pleasant |
| December | -6°C (21°F) | -13°C (8°F) | 19 mm | 72% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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