Sun Valley weather in December
Cold, with some rainy days. Average highs of -1°C and lows of -12°C, with around 10 rainy days expected throughout the month.
While December isn't our top-rated month for Sun Valley, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
-1°C
Average low
-12°C
Rainy days
10 days
Best months to visit
June, July, August, September
What to do in Sun Valley in December
Whatever the weather, Sun Valley rewards curious visitors. Here are some of the best ways to spend your time:
Ski or snowboard world-class terrain in winter
Mountain bike trails or hike in summer
Fly-fish pristine mountain streams
Relax at the outdoor heated Olympic-sized pool
Dine at fine restaurants in the village
Explore the historic lodge and its celebrity heritage
What to pack for December
Pack for cold weather — a proper winter coat, thermal layers, waterproof boots, and warm accessories. You'll want a good base layer for outdoor activities.
Browse other months
January
-1C
Cold, with some rainy days.
February
0C
Cold, with occasional showers.
March
4C
Cold, with some rainy days.
April
7C
Cold, with occasional showers.
May
14C
Cool, with some rainy days.
Recommended
June
21C
Mild and comfortable, with occasional showers.
Recommended
July
27C
Warm and pleasant, and mostly sunny skies.
Recommended
August
26C
Warm and pleasant, with occasional showers.
Recommended
September
20C
Mild and comfortable, with occasional showers.
October
12C
Cool, with occasional showers.
November
4C
Cold, with occasional showers.
December (you are here)
-1C
Cold, with some rainy days.
Book your December trip to Sun Valley
Find hotels, tours and experiences for the perfect escape.
