Onís Weather in September

Thinking of visiting Onís in September? Expect pleasant temperatures reaching 20°C (68°F) during the day, dropping to 13°C (55°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Onís in September

Historically, September sees about 12 days of rain, with a monthly average of 114 mm (4.5 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Onís in September

September in Onís brings typical temperatures with highs around 20°C (68°F) and lows of 13°C (55°F). September is part of summer. Conditions are often most pleasant around the middle of the day. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Onís in September

You can expect a moderate amount of sunlight, with approximately 186 hours. This means a pleasant mix of sun and overcast.

If you prefer dry days with pleasant temperatures, July typically offers 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.