SantʼAntonio Weather in September

September in SantʼAntonio sees daytime temperatures around 18°C (64°F) and lows of 10°C (50°F) at night. With around 163 mm (6.4 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in SantʼAntonio in September

You can typically expect 13 days of rain this month, averaging around 163 mm (6.4 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in SantʼAntonio in September

September in SantʼAntonio sees highs of 18°C (64°F) and lows of 10°C (50°F) overnight. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in SantʼAntonio in September

The month enjoys around 198 hours of sunshine, creating mostly sunny days with good weather conditions.

For SantʼAntonio itself, June, 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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For a detailed overview over the year and the best time to visit Switzerland, check out our SantʼAntonio's climate page.

SantʼAntonio Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 44%  

Precipitation 163 mm (6.4 in)  

Rainy days 13 days  

Humidity 70% *  

Sunshine 198 hours *  

Percentage Sunshine 57% *  

* Data from: Locarno, Switzerland (20 KM, 13 Miles).

What to Wear in SantʼAntonio 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. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in SantʼAntonio in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Camping

3/10

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 Switzerland, check out our SantʼAntonio's climate page.

More climate data for SantʼAntonio

Temperature Rainfall Sunshine Humidity

See the full SantʼAntonio climate overview or explore weather in Switzerland.