Dunes Beach Weather Forecast
- 50
- 62
Mostly Cloudy
- 51
- 63
Rain Showers Likely
- 50
- 60
Chance Rain Showers
- 47
- 64
Mostly Sunny
- 50
- 67
Partly Sunny
- 50
- 67
Partly Sunny
Today 20 Oct San Francisco Peninsula Coast
Mostly cloudy. Highs in the lower 60s. Southeast Winds around 5 Mph. Becoming west in the afternoon.
Tonight 20 Oct San Francisco Peninsula Coast
Showers likely after midnight. Lows in the upper 40s to mid 50s. Northwest Winds around 5 Mph in the evening becoming light.
Dunes Beach Temperature Statistics
October Temperature
Half Moon Bay Airport (3.1 miles)
Lowest 13 October, 2026
44.6 °FAverage October
60.7 °FHighest 15 October, 2026
86 °F
Climate (2021–2026)
Half Moon Bay Airport (3.1 miles)
Average Low 2021–2026
48.8 °FAverage 2021–2026
55.2 °FAverage High 2021–2026
61.2 °F