Calgary Weather in September

In Calgary, September brings pleasant daytime temperatures around 19°C (66°F), with nights cooling to 4°C (39°F). Some rainfall is to be expected.

Rainfall in Calgary in September

Typically, you can expect about 8 days of rain this month, with 49 mm (1.9 in) on average. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Calgary in September

Temperatures in Calgary in September top out at 19°C (66°F) and drop to 4°C (39°F) overnight. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Calgary in September

There are approximately 209 hours of sunshine this month, resulting in mostly clear days.

If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.