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Long-Range Weather Forecast for 2022 | The Old Farmer's Almanac

Long-Range Weather Forecast for San Mateo, CA

Map showing Old Farmer's Almanac long range weather region number 16

Annual Weather Summary
November 2021 to October 2022

Winter will be warmer and drier than normal, with below-normal mountain snows. The coldest temperatures will occur from mid-December into mid-January, in mid-February, and in early March. The stormiest period will be in late December. April and May will be slightly cooler than normal, with rainfall below normal in the north and above normal in the south. Summer temperatures will be hotter than normal, with generally above-normal rainfall. The hottest periods will be in mid-June, mid- to late July, and mid- to late August. September and October will bring temperatures close to normal and be a bit drier than usual.

Free 2-Month Weather Forecast

September 2022 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Sep 1-7Sunny, turning cool
Sep 8-11Sprinkles, mild
Sep 12-22Showers north, sunny south; warm
Sep 23-27Sunny, mild
Sep 28-30Showers; cool north, warm south
Septembertemperature 70° (1° below avg. north, 1° above south)
precipitation 0.2" (avg.)
October 2022 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Oct 1-11Sunny; hot, then cooler
Oct 12-19Showers, then sunny, warm
Oct 20-26Rain, then sunny, cool
Oct 27-31Showers, cool
Octobertemperature 65° (avg.)
precipitation 0.2" (0.3" below avg.)

Temperature and Precipitation November 2021 to October 2022

Temperature and Precipitation Chart, November 2021 to October 2022 for San Mateo, CA