American Canyon Weather in December

December in American Canyon brings moderate temperatures, with highs of 14°C (57°F) and nights dropping to 4°C (39°F). It's the rainiest month of the year, so come prepared with waterproof gear.

Rainfall in American Canyon in December

The month brings the most rain, so be prepared with an umbrella for the occasional shower. Historically, December sees about 12 days of rain, with a monthly average of 101 mm (4 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in American Canyon in December

Expect highs of 14°C (57°F) in American Canyon in December, with nights dropping to around 4°C (39°F). This month falls in the winter season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. December has the coolest temperatures of the year, but still offering mild weather.

Sunshine in American Canyon in December

With about 160 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

December in American Canyon has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.