Guarnizo Weather in September

During September, Guarnizo experiences high daytime temperatures of 22°C (72°F) and cooler nights around 15°C (59°F). As part of the summer season, expect quite a bit of rainfall. Around 87 mm (3.4 in) is typical.

Rainfall in Guarnizo in September

Expect around 13 days of rain based on historical data, with 87 mm (3.4 in) average. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Guarnizo in September

Guarnizo in September is worth a visit. The temperature is perfect, with 22°C (72°F) during the day and 15°C (59°F) at night. Summer occurs in September. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. 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 Guarnizo in September

The city usually sees around 175 hours of sunlight, indicating a moderately sunny period.

Wind Speed in Guarnizo 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

With water at 19°C (66°F), swimming is comfortable for most people. It feels refreshing rather than cold, though it depends a bit on personal preference.

If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Guarnizo.

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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 Guarnizo's climate page.

Guarnizo Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 22°C (72°F)  

Water Temperature 19°C (66°F) *  

Chance of Rain 42%  

Precipitation 87 mm (3.4 in)  

Rainy days 13 days  

Humidity 77% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 175 hours *  

Percentage Sunshine *  

* Data from: Santander, Spain (7 KM, 4 Miles).

What to Wear in Guarnizo in September

For Guarnizo in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. 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. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Guarnizo 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 Guarnizo's climate page.

More climate data for Guarnizo

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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