Lake Forest Weather in December

Lake Forest in December sees pleasant temperatures, with highs around 19°C (66°F) and overnight lows of 8°C (46°F). Rainfall is at its peak this month, around 77 mm (3 in) on average, so waterproofs are essential.

Rainfall in Lake Forest in December

During the wettest month of the year, an umbrella can be your best friend to stay dry. Historically, the month has about 8 days of rain, averaging 77 mm (3 in) in total. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Lake Forest in December

Daytime highs in Lake Forest in December reach 19°C (66°F), with nights around 8°C (46°F). December is in the winter season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 8°C (46°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep. Though the coolest month of the year, the temperatures are far from cold. With still warm days.

Sunshine in Lake Forest in December

The city usually sees around 205 hours of sunlight, indicating many sunny days — a great month for sightseeing.

December in Lake Forest has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Lake Forest's climate page.

Lake Forest Temperature in December

Min Temperature 8°C (46°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 27%  

Precipitation 77 mm (3 in)  

Rainy days 8 days  

Sunshine 205 hours *  

Percentage Sunshine *  

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

What to Wear in Lake Forest in December

For Lake Forest 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. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Lake Forest 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 Lake Forest's climate page.

More climate data for Lake Forest

Temperature Rainfall Sunshine

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