When to go · Half Moon Bay
Half Moon Bay in September
Great month. Inside Half Moon Bay's best window: Sep–Oct (clearest, warmest); May–Jun for wildflowers.
Key facts
- Verdict
- Great
- Temperature
- 19°C66°F / 11°C52°F
- average high / low
- Rain days
- 1
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
GreatBest and avoid months for Half Moon Bay
Inside Half Moon Bay's best window: Sep–Oct (clearest, warmest); May–Jun for wildflowers.
Weather in September
- Half Moon BayHighs around 19 °C, lows around 11 °C, rain on about 1 dayHighs around 66 °F, lows around 52 °F, 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.
What to pack
- A warm layer for the evenings