Dunes Beach Weather Forecast
- 49
- 57
Increasing Clouds
- 53
- 65
Rain Likely
- 48
- 63
Chance Rain
- 50
- 62
Chance Rain
- 51
- 63
Rain
- 48
- 62
Rain Likely
- 50
- 61
Rain
Today 15 Dec San Francisco Peninsula Coast
Mostly cloudy. Highs in the mid 50s to lower 60s. North Winds 5 to 15 Mph.
Tonight 15 Dec San Francisco Peninsula Coast
Partly cloudy in the evening then becoming mostly cloudy. Lows around 50. North Winds 5 to 10 Mph.
Dunes Beach Temperature Statistics
December Temperature
Half Moon Bay Airport (3.1 miles)
Lowest 1 December, 2025
41 °FAverage December
53.2 °FHighest 11 December, 2025
71.6 °F
Climate (2020–Present)
Half Moon Bay Airport (3.1 miles)
Average Low 2020–2025
48 °FAverage 2020–2025
54.5 °FAverage High 2020–2025
60.4 °F