Isla Weather in September

Isla in September averages 23°C (73°F) during the day and 16°C (61°F) at night. This is part of the summer season, and quite a bit of rainfall is expected this month.

Rainfall in Isla in September

Typically, about 13 days will experience rainfall, with an average of 80 mm (3.1 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Isla in September

September is a perfect month in Isla, with 23°C (73°F) during the day and 16°C (61°F) at night. During September, the summer season is in full swing. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights drop to around 16°C (61°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Isla in September

With about 175 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in Isla in September

September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.

Average water temperature in September

At 19°C (66°F), the water is getting there — comfortable enough for most swimmers, though those used to warmer seas may still find it a touch cool.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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

Isla Temperature in September

Min Temperature 16°C (61°F)  

Max Temperature 23°C (73°F)  

Water Temperature 19°C (66°F) *  

Chance of Rain 43%  

Precipitation 80 mm (3.1 in)  

Rainy days 13 days  

Humidity 77% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 175 hours *  

Percentage Sunshine *  

* Data from: Santander, Spain (20 KM, 12 Miles).

What to Wear in Isla 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. The water temperature sits at about 19°C (66°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Isla 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 Isla's climate page.

More climate data for Isla

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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