Irún Weather in September

In Irún, September brings high daytime temperatures around 23°C (73°F), with nights cooling to 15°C (59°F). Expect quite a bit of rainfall this month.

Rainfall in Irún in September

Analyzing past climate data, one can expect approximately 13 days of rain, averaging 103 mm (4.1 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Irún in September

Irún in September gets highs of 23°C (73°F) during the day and drops to 15°C (59°F) at night. September is part of the summer season. Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 15°C (59°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 Irún in September

The area enjoys a balanced 170 hours of sunlight, ensuring it's neither too overcast nor too sunny.

If you prefer enjoying temperate temperatures and rain-free days, 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 Irún's climate page.

Irún Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 43%  

Precipitation 103 mm (4.1 in)  

Rainy days 13 days  

Humidity 75% *  

Sunshine 170 hours *  

Percentage Sunshine *  

* Data from: San Sebastián, Spain (15 KM, 9 Miles).

What to Wear in Irún in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Irún 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 Irún's climate page.

More climate data for Irún

Temperature Rainfall Sunshine Humidity

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