Pasadena Weather in December

With daytime temperatures of 20°C (68°F) and nighttime lows of 8°C (46°F), December in Pasadena brings pleasant temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Pasadena in December

With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. Expect around 8 days of rain based on historical data, with 93 mm (3.7 in) average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Pasadena in December

The temperature in Pasadena in December is perfect. Daytime highs reach 20°C (68°F), with nights dropping to 8°C (46°F). December is typically considered a winter month. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. This period usually represents the year's more moderate temperatures, but it's far from being chilly.

Sunshine in Pasadena in December

The city usually sees around 220 hours of sunlight, indicating many sunny days — a great month for sightseeing.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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 Pasadena's climate page.

Pasadena Temperature in December

Min Temperature 8°C (46°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 27%  

Precipitation 93 mm (3.7 in)  

Rainy days 8 days  

Humidity 52% *  

Sunshine 220 hours *  

Percentage Sunshine 71% *  

* Data from: Los Angeles, the United States of America (33 KM, 20 Miles).

What to Wear in Pasadena 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. Prepare for significant rainfall with proper waterproof clothing and shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Pasadena 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 Pasadena's climate page.

More climate data for Pasadena

Temperature Rainfall Sunshine Humidity

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