Things to Do in Boise in December
December weather, activities, events & insider tips
December Weather in Boise
Is December Right for You?
Advantages
- Exceptionally dry compared to most of the year - you'll only see rain about 10 days all month, and when it does come, it's typically brief afternoon sprinkles rather than the downpours you'd get in spring. Makes outdoor planning actually reliable.
- Shoulder season pricing kicks in after the holiday rush passes - accommodations in downtown Boise drop 20-30% compared to summer peak, and you can actually get restaurant reservations without booking weeks ahead. Flight prices from major West Coast hubs typically run $180-280 roundtrip.
- The Boise River Greenbelt becomes genuinely pleasant for walking and cycling - that 25 miles (40 km) of paved pathway is much more comfortable in 25-30°C (77-86°F) temperatures than the brutal 38°C (100°F) summer afternoons. Locals actually use it for midday exercise in December.
- Winter sports access opens up without the January deep freeze - Bogus Basin ski area (26 km/16 miles from downtown) typically has decent early-season snow by December, but you're skiing in -2 to 4°C (28-40°F) rather than the bone-chilling -15°C (5°F) you might face in January. You can ski in the morning and walk downtown in a light jacket by afternoon.
Considerations
- December weather in Boise is genuinely unpredictable - you might get three days of sunny 15°C (59°F) perfection followed by sudden snow that drops temperatures to -5°C (23°F) overnight. Pack for both scenarios because even locals can't predict which version of December you'll get.
- Daylight hours are brutally short - sunrise around 8am, sunset by 5:15pm means you're losing prime sightseeing time. If you're planning outdoor activities, you've got maybe 7-8 usable daylight hours, and the low winter sun angle makes things feel darker than the clock suggests.
- Holiday closures and reduced hours hit harder than you'd expect - many local restaurants and shops close December 24-26, and several popular breweries run limited schedules the entire last two weeks of December. The downtown scene that's normally vibrant can feel oddly quiet between Christmas and New Year's.
Best Activities in December
Bogus Basin Skiing and Snowboarding
December offers that sweet spot of early-season snow without the January ice storms or February crowds. The mountain typically opens mid-December (snow dependent), and you're skiing in relatively mild -2 to 4°C (28-40°F) temperatures. The 2,600-acre terrain sits at 1,800-2,300 m (5,900-7,600 ft) elevation, and the proximity to Boise means you can hit morning powder and be back downtown for dinner. Weekend lift lines are manageable until the holiday week (December 20-31), when local families flood in. The UV index stays high even in winter - that 8 rating means serious sun reflection off snow.
Boise River Greenbelt Walking and Cycling
The 40 km (25 mile) paved pathway system becomes genuinely pleasant in December after the summer heat breaks. You're looking at comfortable 10-15°C (50-59°F) afternoons, though mornings can start around 0°C (32°F) with frost on the path. The cottonwood trees are bare, which actually opens up better river views than the leafy summer months. Start at Julia Davis Park and head east toward the Boise River Wildlife Management Area - you'll cover 8-10 km (5-6 miles) roundtrip in about 90 minutes at a casual pace. Locals use this for midday exercise when the sun warms things up around 11am-3pm.
Downtown Boise Food and Brewery Tours
December brings seasonal menus and winter beer releases that you won't find other times of year. The BoDo (Boise Downtown) district packs 30+ restaurants and 8-10 craft breweries into a walkable 1.5 km (1 mile) radius. Evening temperatures around 2-5°C (35-41°F) make the walk between spots brisk but manageable, and the holiday lights along 8th Street and Capitol Boulevard add atmosphere you don't get in summer. Self-guided brewery crawls work well - most taprooms are within 5-10 minute walks of each other. Food scene leans heavily into Northwest ingredients with Idaho trout, huckleberries, and locally raised beef showing up on winter menus.
Old Idaho Penitentiary Historical Tours
This 1870s territorial prison operated until 1973 and sits on 8 hectares (20 acres) just east of downtown. December crowds are minimal - you might have entire cell blocks to yourself on weekday afternoons. The outdoor portions are actually more comfortable in 8-12°C (46-54°F) December weather than summer's 38°C (100°F) heat. The sandstone buildings and guard towers photograph beautifully in low winter light, and the bare trees reveal architectural details obscured by foliage in summer. Plan 90-120 minutes for self-guided exploration of the main cell house, solitary confinement, and gallows.
Boise Foothills Hiking
The foothills trail system offers 190+ km (120+ miles) of trails starting literally at the north edge of downtown. December conditions vary wildly - you might get dry, sunny 12°C (54°F) days perfect for hiking, or you might hit snow and ice that makes trails treacherous. Lower elevation trails (1,000-1,200 m / 3,300-3,900 ft) like Hulls Gulch and Table Rock tend to stay accessible even with light snow at higher elevations. The 8 km (5 mile) roundtrip to Table Rock summit gives you panoramic city views and 400 m (1,300 ft) of elevation gain. Start mid-morning (9-10am) once temperatures climb above freezing and that early frost melts off the trail.
Idaho Botanical Garden Winter Light Display
The 20-hectare (50-acre) garden transforms into a walk-through light display typically running late November through December. You're walking outdoor paths in 0-5°C (32-41°F) evening temperatures, so it's cold but manageable with proper layers. The display includes over 200,000 lights throughout the English Garden, meditation garden, and along the spring-fed ponds. Plan 60-90 minutes to walk the full route at a casual pace. This is genuinely popular with locals, so it gets crowded on Friday-Saturday evenings and the week of December 20-28.
December Events & Festivals
Winter Garden aGlow
The Idaho Botanical Garden's annual light display runs late November through December, transforming 20 hectares (50 acres) into an illuminated winter wonderland. Over 200,000 lights line the paths, with themed areas including a light tunnel, animated displays, and reflection ponds. It's become the signature December event for Boise families, and the crowds reflect that popularity. Evening temperatures hover around 0-5°C (32-41°F), so dress warmly. Hot chocolate vendors and fire pits scattered throughout help with the cold.
Boise Philharmonic Holiday Concerts
The Philharmonic typically schedules 2-3 holiday-themed performances in mid-December at the Morrison Center. These lean into traditional holiday music with full orchestra, guest vocalists, and occasional choir collaborations. The Morrison Center seats 2,000 and offers decent acoustics. It's a classic holiday concert experience - expect Tchaikovsky, Handel, and familiar carols alongside less predictable contemporary pieces.
Downtown Boise Holiday Parade and Tree Lighting
Early December brings the annual parade down Capitol Boulevard followed by the official city Christmas tree lighting at The Village at Meridian or Capitol grounds. This is small-city charm rather than major spectacle - local high school bands, community floats, and Santa on a fire truck. The tree lighting draws several thousand locals and includes carol singing and hot beverage vendors. Temperatures at evening events typically sit around 0-2°C (32-36°F), so bundle up.