2019-2020 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 2020 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 |
|---|---|
| Sep 1-4 | Sunny; hot north, warm south |
| Sep 5-10 | Sunny, cool |
| Sep 11-20 | Sunny, hot inland; A.M. sprinkles, P.M. sun coast |
| Sep 21-23 | Sunny; turning hot north, warm south |
| Sep 24-30 | Scattered showers, cool |
| September | temperature 70.5° (2° above avg. coast, 1° below inland) precipitation 0.5" (0.5" above avg. north, avg. south) |
| Dates | Weather Conditions |
|---|---|
| Oct 1-4 | Sunny, cool |
| Oct 5-11 | Sunny, turning warm |
| Oct 12-19 | Sunny, warm north; A.M. sprinkles, P.M. sun south |
| Oct 20-25 | Rainy periods, cool |
| Oct 26-31 | Sunny, cool |
| October | temperature 65° (1° above avg. north, 1° below south) precipitation 1.5" (2" above avg. north, 0.5" below south) |
Annual Weather Summary
November 2019 to October 2020
November 2019 to October 2020
Winter will be cooler than normal. Rainfall will be below normal in the north and above normal in the south, with below-normal mountain snows. The coolest temperatures will occur in mid- and late December, mid- to late January, early to mid-February, and early and late March. The stormiest periods will be in late November, mid- to late December, and early February; from late February into early March; and in mid- and late March. April and May will be cooler than normal, on average, with rainfall below normal in the north and above normal in the south. Summer will be cooler than normal, with rainfall slightly above normal. The hottest periods will be in mid-July and late August. September and October will be slightly cooler than normal, on average, with rainfall above normal in the north and below normal in the south.
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 2019 to October 2020
Reader Comments
Leave a Comment
Change your definition of Pacific SW
TOFA, you may want to change your definition of the Pacific SW. California has two distinct climate types. Southern California has a distinctly different climate from Northern California, which is more similar to the climate experienced by the Pacific NW. It would be far better to have a Northern California zone and a Southern California zone in your forecast rather than lumping them together as the Pacific SW.
Northern California
Middle California and Southern California have very different climates during the winter than Northern California. Starting at the Sutter Buttes and going to the Oregon border, is Northern California. Yes, we get the heat but, the mountains get more snow and the climate is cooler in the winter. Sacramento and the Delta/Bay areas get lots of fog. We are drier. Please don't lump Northern California with the rest of the state-so that we can have more accurate forecasts in the future.
You are wrong
California has four main climate regions and 3 climate zones. The zones are a subtropical climate zone, a hot tropical climate zone which is Southern California, and
the temperate climate zone Which is Northern California. The Climate regions are as follows Northern California, Pacific North West climate, Central Calfornia climate, Southern California climate, Pacific South West Climate. California also has a Mediterranean climate.
Northern & Southern Calif
I totally agree. Our Southern Calif climate is not like that of San Francisco and points farther north. In SoCal, we have a Mediterranean climate, and except for occasional heat during July to Sept, it is very pleasant.
Riverside County
What kind of weather can the Riverside county expect from October 2019 into January 2020? Last year we had a very nice and unusually chilly Thanksgiving holiday. I was just wondering if we should expect the same this year. Please advise/thank you!!!
Up coming 2019 & 2020 rainfall
Can't you give us an idea of our 2019 & 2020 rainfall for San Francisco Calif.? Just an idea---
Thank You
Winter 2018-2019 rainfall
Winter rainfall for the south turned out to be inaccurate and just the opposite of what you predicted. Rainfall in California was actually ABOVE normal, so much so that it ended the drought all over the state.
Amy you are wrong
The drought actually ended in 2017.
Northern California
Actually the drought ended in March of 2019. I agree that California should be split up into different climates. In Northern California, we have the rains that fill up our lakes and rivers and go through the delta down south. I weather is closer to southern Oregon's weather. If I go by what is listed it is wrong. It didn't predict snowmageddon that dumped so much snow on us after our wildfires left our soil unprotected.
Innacurate
We are heading into a record setting long term heatwave and your forecast is for warm and rain. Totally missed and mis forecasted this years summer completely
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