Aia weather in September (Basque Country, Spain)

What weather conditions can you expect in Aia this September? Here’s a detailed forecast of the month’s weather patterns.

Temperatures

In September, the weather in Aia generally includes high temperatures and high rainfall. September is typically considered a summer month. The temperature during the day can rise to approximately 22°C. At night, it falls to around 15°C.

Precipitation

Aia in September usually receives high rainfall, averaging around 100 mm for the month. Historically, the month has about 13 days of rain.

Average sunshine

The city usually sees around 170 hours of sunlight, indicating a moderately sunny period.

If your ideal day consists of dry skies and moderate temperatures June, July and August generally stand out with the best circumstances. While January, February and December tend to showcase less optimal conditions.

Need inspiration to choose your next destination? Our innovative weather planner helps you discover the perfect getaway tailored to your ideal climate conditions.

 

Aia, monthly averages in September

Min Temperature 15°C  

Max Temperature 22°C  

Chance of Rain 43%  

Precipitation 100 mm  

Rainy days 13 days  

Humidity 75% *  

Sunshine 170 hours *  

Percentage Sunshine *  

Data from: San Sebastián, Spain (16 KM, 9 Miles).

Where to go in Spain in September

Find out more about the weather in Spain and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Aia, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Aia.

Our site offers climate and forecast data for every country in the world. Are you going to Spain? On this website you can find historical weather averages for many cities in Spain. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.