Onís Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Onís.
Climate overview of Onís
Onís, Asturias, Spain, experiences significant temperature variation throughout the year. Summers bring daytime highs of 22°C (72°F) in August, while winters cool to 10°C (50°F) in January.
With around 1511 mm (59 in) of annual rainfall, Onís has a notably wet climate. However, this rainfall is not evenly distributed, the city has pleasant summers and cold winters. The wettest month is November. Sunshine peaks in July, when the city sees around 7.5 hours of sunshine per day.
Onís Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Onís - and find the best time to visit.
Monthly Temperature in Onís
Depending on the time of the year, temperatures range from pleasant to chilly in Onís. Average daytime temperatures reach a pleasant 22°C (72°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 10°C (50°F).
At night, temperatures range from around 15°C (59°F) in August to 4°C (39°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Onís
Onís has a relatively rainy climate with high precipitation levels, averaging 1511 mm (59 in) of rainfall annually. Onís experiences moderate seasonal variation in rainfall, with monthly averages ranging from 159 mm (6.3 in) in November, the wettest month, and 97 mm (3.8 in) in July, the driest month. For more details, please visit our Onís Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Onís
Onís can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 7.5 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Onís
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July
- Warmest weather: July and August
- Most sunshine: July and August
- Fewest rainy days: June, July, August and September
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Onís
What is the best time to visit Onís?
July typically offers the most optimal weather in Onís. In contrast, January, February, March, November and December tend to have less optimal conditions. Onís has pleasant summers and cold winters.
What temperatures can I expect in Onís?
Daytime highs range from 10°C (50°F) in January to 22°C (72°F) in August. Nighttime lows range from 4°C (39°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Onís get?
Annual rainfall is around 1511 mm (59 in). November is the wettest month with 159 mm (6.3 in), while July is the driest with 97 mm (3.8 in).
How sunny is Onís?
Onís receives around 2,051 hours of sunshine per year. July is the sunniest month with 224 hours, while December is the cloudiest with just 112 hours. Overall, Onís enjoys abundant sunshine.
Onís 3-Day Forecast
Onís on the map
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Popular this month
Where to go in August - average daytime high across popular destinations.
Seville
36°C (97°F) Madrid34°C (93°F) Valencia31°C (88°F) Málaga29°C (84°F) Benidorm29°C (84°F) Calpe
30°C (86°F) Marbella28°C (82°F) Barcelona28°C (82°F) 
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