When to go · Guerneville
Guerneville in August
Great month. Inside Guerneville's best window: May–Oct for river weather; Sep–Oct for warm days with fewer crowds.
Key facts
- Verdict
- Great
- Temperature
- 30°C (86°F)86°F (30°C) / 12°C (54°F)54°F (12°C)
- average high / low
- Rain days
- 1
- Crowds
- High
- United States overall
- Prices
- High
- United States overall
Verdict
Inside Guerneville's best window: May–Oct for river weather; Sep–Oct for warm days with fewer crowds.
Is another month better than August?
No other month rates higher than August for Guerneville in this guide.
Weather in August
- GuernevilleHighs around 30 °C (86 °F), lows around 12 °C (54 °F), rain on about 1 dayHighs around 86 °F (30 °C), lows around 54 °F (12 °C), rain on about 1 day
Crowds and prices
- Crowds · United States overall
- High
- Prices · United States overall
- High
United States overall: Hot and busy; wildfire smoke in the West, hurricane peak begins in the Southeast.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Guerneville, side by side.
Verdict
Aug: Great
May: Great
Daytime high
Aug: 30 °C (86 °F)86 °F (30 °C)
May: 24 °C (75 °F)75 °F (24 °C)
Night low
Aug: 12 °C (54 °F)54 °F (12 °C)
May: 9 °C (48 °F)48 °F (9 °C)
Rain days
Aug: 1 (better)
May: 4
Crowds
Aug: High
May: Medium
Prices
Aug: High
May: Medium
Festivals listed
Aug: 0
May: 1
August: Inside Guerneville's best window: May–Oct for river weather; Sep–Oct for warm days with fewer crowds.
May: Inside Guerneville's best window: May–Oct for river weather; Sep–Oct for warm days with fewer crowds.
Guerneville: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen
- A warm layer for the evenings