Jenner Weather in December

December in Jenner brings moderate temperatures, with daytime highs of 13°C (55°F) and nights around 6°C (43°F). It's also the wettest month of the year, so an umbrella is a must.

Rainfall in Jenner in December

The heaviest rainfall of the year happens this month, with frequent showers. A poncho is your best bet to stay dry. Historically, December sees about 14 days of rain, with a monthly average of 206 mm (8.1 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Jenner in December

December in Jenner sees highs of 13°C (55°F) and lows of 6°C (43°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. This month often claims the chilliest averages of the year.

Sunshine in Jenner in December

The month brings about 160 hours of sunlight, offering a comfortable mix of sun and overcast.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Jenner. Our weather planner can help you explore destinations with more pleasant weather conditions.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
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• 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 Jenner's climate page.

Jenner Temperature in December

Min Temperature 6°C (43°F)  

Max Temperature 13°C (55°F)  

Chance of Rain 46%  

Precipitation 206 mm (8.1 in)  

Rainy days 14 days  

Sunshine 160 hours *  

Percentage Sunshine 55% *  

* Data from: Healdsburg, the United States of America (27 KM, 17 Miles).

What to Wear in Jenner in December

The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. It's going to pour! Pack a good poncho and prepare for very wet conditions. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Jenner in December

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

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

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 Jenner's climate page.

More climate data for Jenner

Temperature Rainfall Sunshine

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