Grilly Weather in December

Grilly in December averages 6°C (43°F) during the day and -1°C (30°F) at night. This is the wettest month of the year, and part of the winter season.

Rainfall in Grilly in December

Expect frequent, heavy rain this month, marking the peak rainfall period. A poncho will help protect you from getting soaked. Analyzing past climate data, one can expect approximately 14 days of snow/rain, averaging 153 mm (6 in). 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 Grilly in December

Daytime temperatures in Grilly reach 6°C (43°F) in December, dropping to -1°C (30°F) at night. During December, you'll experience the winter season. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. 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 Grilly in December

The city usually sees around 47 hours of sunlight, indicating fewer sunny days.

Average water temperature in December

The water temperature is only 9°C (48°F) this month — cold enough that most people will want to stay out. Hardy swimmers may manage a quick dip, but it won't be comfortable.

December in Grilly has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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

Grilly Temperature in December

Min Temperature -1°C (30°F)  

Max Temperature 6°C (43°F)  

Water Temperature 9°C (48°F) *  

Chance of Rain 48%  

Precipitation 153 mm (6 in)  

Rainy days 14 days  

Humidity 82% *  

Sunshine 47 hours *  

Percentage Sunshine 21% *  

* Data from: Geneva, Switzerland (13 KM, 8 Miles).

What to Wear in Grilly in December

Dress warmly and in layers for your trip to Grilly in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. It's going to pour! Pack a good poncho and prepare for very wet conditions. The water temperature sits at about 9°C (48°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Grilly 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 France, check out our Grilly's climate page.

More climate data for Grilly

Temperature Rainfall Sunshine Humidity Water Temp

See the full Grilly climate overview or explore weather in France.