Monthey Weather in August

Monthey in August averages 20°C (68°F) during the day and 9°C (48°F) at night. August is part of the rainy season, and falls within the summer season, so frequent rainfall is typical.

Rainfall in Monthey in August

Monthey is in the rainy season in August, with rain on around 16 days and an average of 196 mm (7.7 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.

Temperature in Monthey in August

Daytime temperatures in Monthey reach 20°C (68°F) in August, dropping to 9°C (48°F) at night. Experience the summer season in August. The difference between afternoon and evening temperatures is usually noticeable. Nights fall to 9°C (48°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 Monthey in August

The days are predominantly sunny, with an estimated total of around 248 hours of sunshine. Rain is often only seen in the afternoon or evening, leaving clear skies for most of the day. This results in rainy months that still feel bright and are suitable for travel.

If you're inclined towards comfortable temperatures and drier conditions, August is a good time to visit Monthey.

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

Monthey Temperature in August

Min Temperature 9°C (48°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 52%  

Precipitation 196 mm (7.7 in)  

Rainy days 16 days  

Humidity 67% *  

Sunshine 248 hours *  

Percentage Sunshine 65% *  

* Data from: Sion, Switzerland (29 KM, 18 Miles).

What to Wear in Monthey in August

Pleasant temperatures in August 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! Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Monthey in August

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

Swimming

7/10

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 Monthey's climate page.

More climate data for Monthey

Temperature Rainfall Sunshine Humidity

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