Hernani Weather in September

September in Hernani brings high temperatures around 22°C (72°F) during the day, dropping to 15°C (59°F) at night, with quite a bit of rainfall expected, averaging around 105 mm (4.1 in) for the month.

Rainfall in Hernani in September

On average, there are about 13 days with rain during this month, averaging 105 mm (4.1 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Hernani in September

Daytime temperatures in Hernani reach 22°C (72°F) in September, dropping to 15°C (59°F) at night. Experience the summer season in September. This kind of day-to-night contrast is typical for this time of year. 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 Hernani in September

The area enjoys a moderate level of sunlight, with around 170 hours. It's a good balance between sunny and cloudy days.

For Hernani itself, July and August generally stand out with 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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• January
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For a detailed overview over the year and the best time to visit Spain, check out our Hernani's climate page.

Hernani Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 43%  

Precipitation 105 mm (4.1 in)  

Rainy days 13 days  

Humidity 75% *  

Sunshine 170 hours *  

Percentage Sunshine *  

* Data from: San Sebastián, Spain (5 KM, 3 Miles).

What to Wear in Hernani 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Hernani 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

6/10

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 Hernani's climate page.

More climate data for Hernani

Temperature Rainfall Sunshine Humidity

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