San Martín Weather in September

September is one of the excellent months to visit San Martín, with daytime temperatures of 20°C (68°F) and lows of 10°C (50°F) at night. Do note that quite a bit of rainfall is typical, averaging around 84 mm (3.3 in).

Rainfall in San Martín in September

On average, there are about 12 days with rain during this month, averaging 84 mm (3.3 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in San Martín in September

Weather in San Martín is at its excellent in September. Highs reach 20°C (68°F), while nights settle around 10°C (50°F). September is known for being in the summer season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows around 10°C (50°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in San Martín in September

With about 167 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for San Martín.

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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 San Martín's climate page.

San Martín Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 39%  

Precipitation 84 mm (3.3 in)  

Rainy days 12 days  

Humidity 78% *  

Sunshine 167 hours *  

Percentage Sunshine *  

* Data from: Oviedo, Spain (28 KM, 17 Miles).

What to Wear in San Martín 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. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in San Martín 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

4/10

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 San Martín's climate page.

More climate data for San Martín

Temperature Rainfall Sunshine Humidity

See the full San Martín climate overview or explore weather in Spain.