Siviez Weather in January

January in Siviez sees daytime temperatures around -4°C (25°F) and lows of -13°C (9°F) at night. With around 125 mm (4.9 in) of snowfall expected, it's worth packing a rain jacket.

Rainfall in Siviez in January

You can expect snow on roughly 15 days based on historical data, averaging 125 mm (4.9 in) for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Siviez in January

Temperatures in Siviez in January top out at -4°C (25°F) and drop to -13°C (9°F) overnight. The winter season is characteristic of January. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. With lows of -13°C (9°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. It's generally the coldest month of the year, making it essential to pack warm layers and winter accessories.

Sunshine in Siviez in January

This month sees fewer sunny days, with about 95 hours of sunshine, perfect for those who enjoy cooler temperatures.

Wind Speed in Siviez in January

Wind speeds average 1 m/s (2 knots) during January. At this speed, you'll experience mostly light air movement that's just barely noticeable. As an average, some days will be completely calm while others have gentle breezes you can feel on your skin.

January in Siviez has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.

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

Siviez Temperature in January

Min Temperature -13°C (9°F)  

Max Temperature -4°C (25°F)  

Chance of Rain 51%  

Precipitation 125 mm (4.9 in)  

Rainy days 15 days  

Humidity 78% *  

Windspeed 1 m/s (2 knots) *  

Sunshine 95 hours *  

Percentage Sunshine 53% *  

* Data from: Sion, Switzerland (9 KM, 5 Miles).

Daily Historical Temperatures

51-year average (1976-2026)

Based on our historical records, temperatures in Siviez typically stay consistent throughout January, with daily highs averaging around -4°C (25°F). Nights are very cold, with lows around -4°C (25°F).

Average temperatures in January

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Daily Historical Precipitation

51-year average (1976-2026)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in January

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Historical weather for Siviez in January

Browse day-by-day weather records for Siviez spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Siviez historical weather extremes in January

Based on 25 years of weather observations (2000-2025), these are the most extreme conditions recorded in Siviez.

• The hottest January day on record in Siviez reached 13°C (55°F) (January 30, 2002).
• On January 26, 2005, Siviez saw its coldest January day with temperatures maxing out at -9°C (16°F).
• The coldest night in January in Siviez was on January 28, 2014, with a minimum of -12°C (10°F).
• The heaviest January precipitation occurred on January 22, 2018, when 50 mm (2 in) of precipitation fell.

What to Wear in Siviez in January

It's wise to bundle up for freezing conditions in Siviez in January. If you have a winter jacket with good insulation, waterproof winter boots, thermal layers, and warm accessories it's smart to pack them. Hand and foot warmers can be lifesavers, especially during the night. Expect heavy rainfall, so bring good rain protection and waterproof bags. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.

What To Do in Siviez in January

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

Swimming

1/10

Cycling

1/10

Walking

1/10

Camping

1/10

Outdoor sports

1/10

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 Siviez's climate page.

More climate data for Siviez

Temperature Rainfall Sunshine Humidity Wind Speed

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