Fallbrook Weather in December

Fallbrook in December sees pleasant daytime temperatures of 19°C (66°F) and nighttime lows of 8°C (46°F). With the highest rainfall of the year it is wise to pack an umbrella and expect frequent showers.

Rainfall in Fallbrook in December

Since this is the rainiest month of the year, it's a good idea to carry an umbrella just in case. You can expect rain on roughly 8 days based on historical data, averaging 83 mm (3.3 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Fallbrook in December

December in Fallbrook sees highs of 19°C (66°F) and lows of 8°C (46°F) overnight. December is a notable month of the winter season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. While this is the time of year with slightly cooler averages, it remains comfortably warm.

Sunshine in Fallbrook in December

Expect a lot of sunshine this month, with about 205 hours of sun. These sunny conditions add to the overall experience.

December in Fallbrook 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.

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 the United States of America, check out our Fallbrook's climate page.

Fallbrook Temperature in December

Min Temperature 8°C (46°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 27%  

Precipitation 83 mm (3.3 in)  

Rainy days 8 days  

Sunshine 205 hours *  

Percentage Sunshine *  

* Data from: Corona, the United States of America (62 KM, 38 Miles).

What to Wear in Fallbrook in December

For Fallbrook in December, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Fallbrook in December

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

Cycling

9/10

Walking

9/10

Camping

4/10

Outdoor sports

9/10

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 the United States of America, check out our Fallbrook's climate page.

More climate data for Fallbrook

Temperature Rainfall Sunshine

See the full Fallbrook climate overview or explore weather in the United States of America.