Guerneville Weather in August

August in Guerneville averages 27°C (81°F) during the day and 11°C (52°F) at night. With just 0.9 mm (0.04 in) of rainfall on average, it doesn't get much drier than this.

Rainfall in Guerneville in August

Known for its least rainfall, this month is the best of the year for people who like to spend time outdoors. Expect around a single day of rain based on historical data, with 0.9 mm (0.04 in) average. If rain does fall, it tends to be very light and barely worth getting out an umbrella for.

Temperature in Guerneville in August

If you're visiting Guerneville in August, expect perfect temperatures with highs of 27°C (81°F) and overnight lows of 11°C (52°F). Summer occurs in August. Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Guerneville in August

The month enjoys around 290 hours of sunshine, creating mostly sunny days with good weather conditions.

If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit Guerneville.

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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 Guerneville's climate page.

Guerneville Temperature in August

Min Temperature 11°C (52°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 3%  

Precipitation 0.9 mm (0.04 in)  

Rainy days a single day  

Sunshine 290 hours *  

Percentage Sunshine 71% *  

* Data from: Healdsburg, the United States of America (16 KM, 10 Miles).

What to Wear in Guerneville in August

Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Guerneville in August

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

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

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 Guerneville's climate page.

More climate data for Guerneville

Temperature Rainfall Sunshine

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