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 excellent 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.