2021 Long Range Weather Forecast for San Francisco, CA
See long range weather forecasts for the next 60 days from The Old Farmer’s Almanac! Our long range forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to sporting events and outdoor activities.
To see long term forecasts for the entire year, pick up a copy of The 2021 Old Farmer’s Almanac, available online and in stores.
Note: Long range forecasts are regional, not city-specific.
Free 2-Month Weather Forecast
| Dates | Weather Conditions |
|---|---|
| Apr 1-8 | Rainy periods, cool |
| Apr 9-15 | Scattered showers, cool |
| Apr 16-24 | Sunny, turning warm |
| Apr 25-30 | Scattered showers, cooler |
| April | temperature 59° (1° below avg.) precipitation 1.3" (0.5" below avg. north, 1" above south) |
| Dates | Weather Conditions |
|---|---|
| May 1-4 | Sunny, warm inland; AM sprinkles, PM sunny coast |
| May 5-9 | Sunny; hot north, warm south |
| May 10-18 | Sunny, cool |
| May 19-24 | Sunny inland; AM sprinkles, PM sunny coast; cool |
| May 25-31 | Sunny, cool |
| May | temperature 63.5° (avg.) precipitation 0.3" (0.2" below avg.) |
Annual Weather Summary
November 2020 to October 2021
November 2020 to October 2021
Winter will be cooler and drier than normal, with below-normal mountain snows. The coldest temperatures will occur in late December, late January, and mid- to late February. The stormiest periods will be from late January into early February, mid- to late February, and late March into early April. April and May will be cooler than normal, with rainfall below normal in the north and above normal in the south. Summer temperatures will be cooler than normal inland and warmer near the coast, with slightly above-normal rainfall. The hottest periods will be in mid-June and mid- to late August. September and October will be warmer and rainier than normal.
About the Pacific Southwest Region
The Pacific Southwest long range weather region includes all or part of the following states: CALIFORNIA (Long Beach, Los Angeles, San Diego, San Francisco, San Jose).
Pacific Southwest Neighboring Regions
Here are the regions that neighbor the Pacific Southwest long range weather region:
Temperature and Precipitation November 2020 to October 2021
