Mex Weather in September

Thinking of visiting Mex in September? Expect moderate temperatures reaching 16°C (61°F) during the day, dropping to 5°C (41°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Mex in September

Expect around 14 days of rain based on historical data, with 141 mm (5.6 in) average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Mex in September

September in Mex brings moderate temperatures, with highs of 16°C (61°F) and nights around 5°C (41°F). Conditions are often most pleasant around the middle of the day. Nights fall to 5°C (41°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Mex in September

With approximately 210 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If your ideal day consists of dry skies and pleasant temperatures, July typically offers the best circumstances for Mex.

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 Mex's climate page.

Mex Temperature in September

Min Temperature 5°C (41°F)  

Max Temperature 16°C (61°F)  

Chance of Rain 45%  

Precipitation 141 mm (5.6 in)  

Rainy days 14 days  

Humidity 71% *  

Sunshine 210 hours *  

Percentage Sunshine 65% *  

* Data from: Sion, Switzerland (25 KM, 16 Miles).

What to Wear in Mex in September

The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Mex in September

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

Cycling

5/10

Walking

5/10

Camping

3/10

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 Switzerland, check out our Mex's climate page.

More climate data for Mex

Temperature Rainfall Sunshine Humidity

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