Aia Weather in September

September in Aia brings high temperatures, with highs of 22°C (72°F) and nights dropping to 15°C (59°F). Rainfall is on the higher side this month, averaging around 100 mm (3.9 in), so keep a rain jacket handy.

Rainfall in Aia in September

Typically, you can expect about 13 days of rain this month, with 100 mm (3.9 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Aia in September

In September, Aia gets high temperatures, with highs of 22°C (72°F). Nights cool to around 15°C (59°F). Summer occurs in September. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 15°C (59°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Aia in September

The area experiences a moderate amount of sunshine, with approximately 170 hours of sunlight expected. This means a decent mix of sun and overcast.

If you prefer dry days with pleasant temperatures, June, 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.

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For a detailed overview over the year and the best time to visit Spain, check out our Aia's climate page.

Aia Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 43%  

Precipitation 100 mm (3.9 in)  

Rainy days 13 days  

Humidity 75% *  

Sunshine 170 hours *  

Percentage Sunshine *  

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

What to Wear in Aia in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Aia in September

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

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Spain, check out our Aia's climate page.

More climate data for Aia

Temperature Rainfall Sunshine Humidity

See the full Aia climate overview or explore weather in Spain.