Grimisuat Weather in September

With daytime temperatures of 15°C (59°F) and nighttime lows of 4°C (39°F), September in Grimisuat brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 127 mm (5 in) falls on average.

Rainfall in Grimisuat in September

You can expect rain on around 14 days based on historical patterns, with 127 mm (5 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Grimisuat in September

If you're visiting Grimisuat in September, expect highs of 15°C (59°F) and overnight lows around 4°C (39°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 4°C (39°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Grimisuat in September

Expect sunny days throughout the month, with an estimated 210 hours of sunshine. This makes it a pleasant time to visit Grimisuat.

Wind Speed in Grimisuat 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.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable 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 Grimisuat's climate page.

Grimisuat Temperature in September

Min Temperature 4°C (39°F)  

Max Temperature 15°C (59°F)  

Chance of Rain 46%  

Precipitation 127 mm (5 in)  

Rainy days 14 days  

Humidity 71% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 210 hours *  

Percentage Sunshine 65% *  

* Data from: Sion, Switzerland (6 KM, 3 Miles).

What to Wear in Grimisuat in September

The weather can be unpredictable in September, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Grimisuat 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 Grimisuat's climate page.

More climate data for Grimisuat

Temperature Rainfall Sunshine Humidity Wind Speed

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