Half Moon Bay, CA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Half Moon Bay now
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Half Moon Bay weather by the hour
Half Moon Bay weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Half Moon Bay.
This week in Half Moon Bay
Sunrise, sunset and moon in Half Moon Bay
What is the weather usually like in Half Moon Bay?
Köppen climate classification, calculated from the 1991–2020 normals
- Septemberwarmest month · 66°F average high
- Februarycoldest month · 43°F average low
- 26.0 inprecipitation per year · 661 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Half Moon Bay: July to October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station HALF MOON BAY, CA US (USC00043714), adjusted for the elevation of Half Moon Bay.
Half Moon Bay weather month by month
Sunrise and sunset in Half Moon Bay through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:21 AM | 5:17 PM | 9 h 55 min |
| February | 6:57 AM | 5:50 PM | 10 h 53 min |
| March | 7:18 AM | 7:18 PM | 11 h 59 min |
| April | 6:32 AM | 7:46 PM | 13 h 13 min |
| May | 5:58 AM | 8:13 PM | 14 h 14 min |
| June | 5:46 AM | 8:33 PM | 14 h 47 min |
| July | 5:59 AM | 8:32 PM | 14 h 32 min |
| August | 6:24 AM | 8:03 PM | 13 h 38 min |
| September | 6:50 AM | 7:18 PM | 12 h 28 min |
| October | 7:16 AM | 6:33 PM | 11 h 17 min |
| November | 6:48 AM | 5:00 PM | 10 h 12 min |
| December | 7:15 AM | 4:54 PM | 9 h 38 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Half Moon Bay?
Half Moon Bay has a warm-summer mediterranean climate. The warmest month is September, with an average high of 66°F (19°C), and the coldest is February, with average lows of 43°F (6°C).
It gets about 26.0 inches (661 mm) of precipitation a year. The wettest month is December and the driest is July.
The best time to visit Half Moon Bay is July to October. At 75 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Half Moon Bay
Weather in towns near Half Moon Bay
Questions about the weather in Half Moon Bay
What is the hottest month in Half Moon Bay?
September, with an average high of 66°F (19°C).
What is the coldest month in Half Moon Bay?
February, with an average low of 43°F (6°C).
How much does it rain in Half Moon Bay?
About 26.0 inches (661 mm) a year; the wettest month is December.
Does it snow in Half Moon Bay?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Half Moon Bay?
July to October, when temperatures are most pleasant and rainy days are fewer.
What climate does Half Moon Bay have?
Warm-summer mediterranean (Köppen Csb).
What is the weather like in Half Moon Bay in November?
Highs average 62°F and lows 45°F, with about 2.4 inches of precipitation.
What time is sunrise in Half Moon Bay?
Around 6:48 AM in mid-November, and sunset around 5:00 PM. Today’s exact times are shown above.
Where does this Half Moon Bay weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Half Moon Bay.
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