When to go · Clearlake
Clearlake in September
Great month. Inside Clearlake's best window: May–Jun, Sep–Oct.
Key facts
- Verdict
- Great
- Temperature
- 31°C (88°F)88°F (31°C) / 11°C (52°F)52°F (11°C)
- average high / low
- Rain days
- 1
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
Inside Clearlake's best window: May–Jun, Sep–Oct.
Is another month better than September?
No other month rates higher than September for Clearlake in this guide.
Weather in September
- ClearlakeHighs around 31 °C (88 °F), lows around 11 °C (52 °F), rain on about 1 dayHighs around 88 °F (31 °C), lows around 52 °F (11 °C), rain on about 1 day
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Labor Day big impact
1st Monday of September · United States
End of summer; last big road-trip weekend.
Crowds and prices
- Crowds · United States overall
- Medium
- Prices · United States overall
- Medium
United States overall: After Labor Day the crowds drop and parks stay open; Florida and the Gulf are at hurricane peak.
Compare two months
Weather, crowds and prices for any two months in Clearlake, side by side.
Verdict
Sep: Great
May: Great
Daytime high
Sep: 31 °C (88 °F)88 °F (31 °C)
May: 25 °C (77 °F)77 °F (25 °C)
Night low
Sep: 11 °C (52 °F)52 °F (11 °C)
May: 8 °C (46 °F)46 °F (8 °C)
Rain days
Sep: 1 (better)
May: 4
Crowds
Sep: Medium
May: Medium
Prices
Sep: Medium
May: Medium
Festivals listed
Sep: 1
May: 1
September: Inside Clearlake's best window: May–Jun, Sep–Oct.
May: Inside Clearlake's best window: May–Jun, Sep–Oct.
Clearlake: 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