North America in December: Weather, Crowds & What to Expect

Arctic & Subarctic (Northern Canada, Alaska, Greenland)

December marks the onset of deep winter: polar night at the highest latitudes, regular sea‑ice cover along coastal Greenland and northern Canadian shores, and extremely cold conditions inland. Cultural events and winter trips (dog sledding, ice‑hotel stays, northern lights tours from Fairbanks or Yellowknife) operate from prepared hubs, but expect short days, severe cold, and limited road access. Travel here in December requires thorough preparation and locally guided arrangements.

Pacific Coast & Western Mountains (Pacific Northwest, British Columbia, Yukon south, California coast, Cascades, Sierra, Rockies foothills)

description’:’This bloc runs from California’s coast north through Oregon and Washington into British Columbia and the western mountain ranges (Cascades, Sierra, parts of the Rockies). Expect wet, mild winters on the Pacific Coast with heavy mountain snow and dry, warm summers inland; wildfire smoke and late-season storms are the main seasonal hazards. Shoulder seasons (spring and fall) often give the best balance of weather and crowds.’

Southwest US & Northern Mexico (Baja California, Sonoran & Chihuahuan Deserts, Arizona, New Mexico, northern Mexico states)

Dry, pleasant conditions dominate December with comfortable daytime temperatures and cool nights across the Baja peninsula and interior deserts; holiday crowds spike in beach resorts and popular desert towns. Higher mountain areas can see snow and winter festivals appear in regional cities. This is prime season for Mexican coastal resorts and southern Arizona escapes - book early for holidays and bring sun gear plus a warm layer for nights.

Great Plains & Midwest (Canadian Prairies, US Plains & Midwest: Saskatchewan, Manitoba, North Dakota, South Dakota, Nebraska, Iowa, Illinois, Minnesota, Wisconsin, Missouri)

December returns cold and often snowy conditions across the Plains and Midwest: blizzards are possible on the open plains while metropolitan areas contend with heavy snow events and icy roads. Holiday travel can be disrupted by storms; book flexible tickets and allow extra time. This month is also prime for winter sports in northern lakes and trails, but ensure winter tires and emergency car kits are in place.

Northeast & Atlantic Canada (New England, Quebec, Newfoundland & Labrador, Nova Scotia, Prince Edward Island, New Brunswick)

December turns much of the region festive and wintry: holiday markets and lights attract visitors in cities, while inland and northern areas have full snow cover suitable for winter sports. Coastal New England and Nova Scotia may see nor’easters that complicate travel and ferry operations, so allow flexibility during holiday trips. Bring winter footwear, insulated clothing and plan for shorter daylight hours.

Southeast US, Gulf Coast, Caribbean & Central America (Florida, Gulf states, Yucatán, Belize, Guatemala, Honduras, Nicaragua, Costa Rica, Panama, Greater Antilles, Lesser Antilles)

December returns busy, sun‑filled travel conditions, with stable dry weather on many Caribbean islands and Pacific coasts of Central America - ideal for diving, beach-going and holiday breaks. The region is crowded for the holidays, especially Florida and popular Caribbean resorts; book flights and hotels well in advance. Lightweight clothing, reef‑safe sunscreen and a light evening layer are the usual packing needs.