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Ollon Weather in December
December in Ollon brings very low temperatures around 1°C (34°F) during the day, dropping to -8°C (18°F) at night, with quite a bit of snow/rainfall expected, averaging around 152 mm (6 in) for the month.
Rainfall in Ollon in December
On average, there are about 14 days with snow/rain during this month, averaging 152 mm (6 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Ollon in December
In December, expect very low temperatures in Ollon, with highs of 1°C (34°F) and lows of -8°C (18°F) at night. December is in the winter season. Staying warm is the main priority this month, especially during mornings and evenings. With lows of -8°C (18°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. Expect freezing temperatures this month, so ensure you have plenty of warm clothing. It's important to be prepared.
Sunshine in Ollon in December
The month is characterized by fewer sunny days, with roughly 70 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.Our weather planner can help you find worldwide destinations with pleasant weather during this period. August typically offers the best weather for Ollon.
Ollon Temperature in December
Min Temperature
-8°C (18°F)
Max Temperature
1°C (34°F)
Chance of Rain
47%
Precipitation
152 mm (6 in)
Rainy days
14 days
Humidity
83% *
Sunshine
70 hours *
Percentage Sunshine
50% *
* Data from: Sion, Switzerland (27 KM, 17 Miles).
Ollon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ollon - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ollon typically stay consistent throughout December, with daily highs averaging around 1°C (34°F). Nights are very cold, with lows around -1°C (30°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather records for Ollon in December
Browse day-by-day weather records for Ollon spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ollon historical weather extremes in December
According to our 49 years of weather records for Ollon, the following extremes were recorded between 1976 and 2025.
- Ollon recorded its highest December temperature of 19°C (66°F) on December 16, 1989.
- The coldest December day was on December 29, 2005, with a maximum of -6°C (21°F).
- Ollon registered its coldest December night on December 16, 1990, with temperatures dropping to -15°C (5°F).
- Peak precipitation in December occurred on December 23, 2022, when 34 mm (1.3 in) of precipitation was measured.
Best Places in Switzerland in December
Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in December →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Ollon in December
Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! With limited sunshine expected, sunglasses aren't a priority for packing.
What To Do in Ollon in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling2/10 -
Walking2/10 -
Camping1/10 -
Outdoor sports2/10
Ollon 3-Day Forecast
More climate data for Ollon
Temperature Rainfall Sunshine Humidity
See the full Ollon climate overview or explore weather in Switzerland.
Popular in December
Where to go in December - average daytime high across popular destinations.
Zürich
6°C (43°F) Engelberg
0°C (32°F) Crans-Montana-3°C (27°F) Grindelwald-3°C (27°F) Davos-3°C (27°F) Nendaz-3°C (27°F) Saas-Fee-4°C (25°F) Zermatt-6°C (21°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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