Grône Weather in September

Grône in September sees moderate temperatures, with highs around 15°C (59°F) and overnight lows of 3°C (37°F). Rainfall is fairly high at around 119 mm (4.7 in) on average, so pack waterproofs just in case.

Rainfall in Grône in September

Rain is expected on roughly 14 days, totalling around 119 mm (4.7 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Grône in September

Grône in September gets highs of 15°C (59°F) during the day and drops to 3°C (37°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 3°C (37°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 Grône in September

Expect a lot of sunshine this month, with about 210 hours of sun. These sunny conditions help offset the cool temperatures, making it a pleasant month to explore outdoors.

Wind Speed in Grône 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.

If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Grône.

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

Grône Temperature in September

Min Temperature 3°C (37°F)  

Max Temperature 15°C (59°F)  

Chance of Rain 46%  

Precipitation 119 mm (4.7 in)  

Rainy days 14 days  

Humidity 71% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 210 hours *  

Percentage Sunshine 65% *  

* Data from: Sion, Switzerland (10 KM, 6 Miles).

What to Wear in Grône 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 Grône in September

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

Swimming

4/10

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 Grône's climate page.

More climate data for Grône

Temperature Rainfall Sunshine Humidity Wind Speed

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