Fountain Valley Weather in December
December in Fountain Valley averages 19°C (66°F) during the day and 8°C (46°F) at night. It is the wettest month of the year, with 54 mm (2.1 in) of rainfall on average, so waterproof gear is a must.
Rainfall in Fountain Valley in December
During the wettest month of the year, an umbrella can be your best friend to stay dry. Historically, December sees about 8 days of rain, with a monthly average of 54 mm (2.1 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Fountain Valley in December
Daytime highs in Fountain Valley in December reach 19°C (66°F), with nights around 8°C (46°F). The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets. Expect mild temperatures during this month, but it stays comfortably warm and inviting. It is the coolest month of the year.
Sunshine in Fountain Valley in December
The city usually sees around 205 hours of sunlight, indicating many sunny days — a great month for sightseeing.December in Fountain Valley can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Fountain Valley's climate page.
Fountain Valley Temperature in December
Min Temperature
8°C (46°F)
Max Temperature
19°C (66°F)
Chance of Rain
27%
Precipitation
54 mm (2.1 in)
Rainy days
8 days
Sunshine
205 hours *
Percentage Sunshine
*
Best Places in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Fountain Valley in December
Pleasant temperatures in December mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Fountain Valley in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Fountain Valley's climate page.
See the full Fountain Valley climate overview or explore weather in the United States of America.
