Idyllwild Weather in December
December in Idyllwild brings low temperatures, with highs of 11°C (52°F) and nights dropping to -1°C (30°F). It's the rainiest month of the year, so come prepared with waterproof gear.
Rainfall in Idyllwild in December
Since this month has the highest rainfall, keep an umbrella with you to handle sudden showers. Based on our climate data of the past 30 years, about 9 days of snow/rain are anticipated, with 135 mm (5.3 in) on average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Idyllwild in December
In December, expect low temperatures in Idyllwild, with highs of 11°C (52°F) and lows of -1°C (30°F) at night. December is in the winter season. It stays cool throughout the day, so warm layers are a good idea from morning to evening. At -1°C (30°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. December usually brings the most temperate weather conditions of the year.
Average water temperature in December
At 16°C (61°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Idyllwild. Our weather planner can help you explore destinations with more pleasant weather conditions.
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 Idyllwild's climate page.
Idyllwild Temperature in December
Min Temperature
-1°C (30°F)
Max Temperature
11°C (52°F)
Water Temperature
16°C (61°F) *
Chance of Rain
30%
Precipitation
135 mm (5.3 in)
Rainy days
9 days
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 Idyllwild in December
The weather can be unpredictable in December, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. With water temperatures around 16°C (61°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough.What To Do in Idyllwild 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 Idyllwild's climate page.
Temperature Rainfall Water Temp
See the full Idyllwild climate overview or explore weather in the United States of America.
