When to go · Portola Valley
Portola Valley in August
Avoid month. Listed as a month to avoid: Dec–Feb (rain, some trails muddy), Jul–Aug (heat, fire risk).
Key facts
- Verdict
- Avoid
- Temperature
- 27°C (81°F)81°F (27°C) / 14°C (57°F)57°F (14°C)
- average high / low
- Rain days
- 1
- Crowds
- High
- United States overall
- Prices
- High
- United States overall
Verdict
Listed as a month to avoid: Dec–Feb (rain, some trails muddy), Jul–Aug (heat, fire risk).
Is another month better than August?
August is rated avoid. These months rate higher:
Weather in August
- Portola ValleyHighs around 27 °C (81 °F), lows around 14 °C (57 °F), rain on about 1 dayHighs around 81 °F (27 °C), lows around 57 °F (14 °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 Portola Valley, side by side.
Verdict
Aug: Avoid
Mar: Great (better)
Daytime high
Aug: 27 °C (81 °F)81 °F (27 °C)
Mar: 18 °C (64 °F)64 °F (18 °C)
Night low
Aug: 14 °C (57 °F)57 °F (14 °C)
Mar: 8 °C (46 °F)46 °F (8 °C)
Rain days
Aug: 1 (better)
Mar: 9
Crowds
Aug: High
Mar: Medium
Prices
Aug: High
Mar: Medium
Festivals listed
Aug: 0
Mar: 2
August: Listed as a month to avoid: Dec–Feb (rain, some trails muddy), Jul–Aug (heat, fire risk).
March: Inside Portola Valley's best window: Mar–May, Sep–Nov.
Portola Valley: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.