Los Altos, CA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Los Altos now
Loading the National Weather Service forecast…
Los Altos weather by the hour
Los Altos weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Los Altos.
This week in Los Altos
Sunrise, sunset and moon in Los Altos
What is the weather usually like in Los Altos?
Köppen climate classification, calculated from the 1991–2020 normals
- Septemberwarmest month · 77°F average high
- Decembercoldest month · 42°F average low
- 13.4 inprecipitation per year · 342 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Los Altos: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station MOFFETT FEDERAL AIRFIELD, CA US (USW00023244), adjusted for the elevation of Los Altos.
Los Altos weather month by month
Sunrise and sunset in Los Altos through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:19 AM | 5:15 PM | 9 h 56 min |
| February | 6:55 AM | 5:49 PM | 10 h 53 min |
| March | 7:17 AM | 7:16 PM | 11 h 59 min |
| April | 6:31 AM | 7:44 PM | 13 h 13 min |
| May | 5:57 AM | 8:11 PM | 14 h 14 min |
| June | 5:45 AM | 8:32 PM | 14 h 46 min |
| July | 5:58 AM | 8:30 PM | 14 h 31 min |
| August | 6:23 AM | 8:02 PM | 13 h 38 min |
| September | 6:49 AM | 7:17 PM | 12 h 28 min |
| October | 7:15 AM | 6:32 PM | 11 h 17 min |
| November | 6:46 AM | 4:59 PM | 10 h 12 min |
| December | 7:14 AM | 4:53 PM | 9 h 39 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Los Altos?
Los Altos has a warm-summer mediterranean climate. The warmest month is September, with an average high of 77°F (25°C), and the coldest is December, with average lows of 42°F (5°C).
It gets about 13.4 inches (342 mm) of precipitation a year. The wettest month is February and the driest is July.
The best time to visit Los Altos is June to September. At 157 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 Los Altos
Weather in towns near Los Altos
Questions about the weather in Los Altos
What is the hottest month in Los Altos?
September, with an average high of 77°F (25°C).
What is the coldest month in Los Altos?
December, with an average low of 42°F (5°C).
How much does it rain in Los Altos?
About 13.4 inches (342 mm) a year; the wettest month is February.
Does it snow in Los Altos?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Los Altos?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Los Altos have?
Warm-summer mediterranean (Köppen Csb).
What is the weather like in Los Altos in November?
Highs average 65°F and lows 46°F, with about 1.4 inches of precipitation.
What time is sunrise in Los Altos?
Around 6:46 AM in mid-November, and sunset around 4:59 PM. Today’s exact times are shown above.
Where does this Los Altos weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Los Altos.
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