Half Moon Bay, CA Weather Forecast
San Mateo County, California
Live radar, warnings and storm tracking for Half Moon Bay, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Half Moon Bay
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Half Moon Bay, CA at a glance
Half Moon Bay is home to about 11,105 people in San Mateo County, across 6.2 square miles. It ranks 361st by population of 450 places in California with a forecast here. The nearest neighbour with its own forecast is Hillsborough, 8 miles away.
- County
- San Mateo County
- Population
- 11,105 2023 est.
- Land area
- 6.2 sq mi
- People per sq mi
- 1,779
- Forecast point
- 37.4673°N, 122.4405°W
How well can the network see Half Moon Bay?
The nearest Doppler radar is KMUX (San Francisco, CA), to the SE. Its lowest scan passes about 2,400 ft above Half Moon Bay. Close enough to see rotation in the low part of a storm, where tornadoes form. Half Moon Bay is closer to its radar than 61% of US cities.
The closest weather station is KHAF (Half Moon Bay Arpt). Close enough that its readings are the conditions in town.
Forecasts near Half Moon Bay
- Hillsborough, CA8 mi
- Belmont, CA9 mi
- Millbrae, CA9 mi
- Burlingame, CA9 mi
- San Mateo, CA10 mi
- San Carlos, CA10 mi
- Pacifica, CA10 mi
- Woodside, CA10 mi
Elsewhere in California
Los AngelesSan DiegoSan JoseSan FranciscoFresnoSacramentoAll California forecasts →