Grenchen Weather in December

December in Grenchen brings low temperatures, with highs of 6°C (43°F) and nights dropping to -1°C (30°F). Rainfall is on the higher side this month, averaging around 108 mm (4.3 in), so keep a rain jacket handy.

Rainfall in Grenchen in December

Records from the past 30 years suggest around 15 days of snow/rain, with 108 mm (4.3 in) average for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Grenchen in December

Expect highs of 6°C (43°F) in Grenchen in December, with nights dropping to around -1°C (30°F). December is part of winter. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With lows of -1°C (30°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated.

Sunshine in Grenchen in December

This month is characterized by fewer sunny days, with about 54 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Grenchen. Our weather planner can help you explore destinations with more pleasant weather conditions.

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

Grenchen Temperature in December

Min Temperature -1°C (30°F)  

Max Temperature 6°C (43°F)  

Chance of Rain 50%  

Precipitation 108 mm (4.3 in)  

Rainy days 15 days  

Humidity 84% *  

Sunshine 54 hours *  

Percentage Sunshine 23% *  

* Data from: Bern, Switzerland (27 KM, 17 Miles).

What to Wear in Grenchen in December

We recommend to layer up for chilly conditions in Grenchen in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.

What To Do in Grenchen in December

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

Swimming

4/10

Cycling

3/10

Walking

3/10

Camping

1/10

Outdoor sports

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 Grenchen's climate page.

More climate data for Grenchen

Temperature Rainfall Sunshine Humidity

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