2020 Long Range Weather Forecast for San Diego, CA

Get the Long Range Weather for Your Location

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

February 2020 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Feb 1-7Rainy periods; mild, then cool
Feb 8-11Sunny, cool
Feb 12-19Rain, then sunny, cool
Feb 20-24Showers, mild
Feb 25-29Rain, some heavy; mild
Februarytemperature 54° (1° below avg.)
precipitation 2.5" (1" above avg. north, avg. south)

March 2020 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Mar 1-9Rainy periods, cool
Mar 10-13Showers, cool north; sunny, mild south
Mar 14-18Rainy periods, cool
Mar 19-23Sunny, cool
Mar 24-31Rainy periods, cool
Marchtemperature 54° (3° below avg.)
precipitation 4.5" (2" above avg.)

Annual Weather Summary
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.

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

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

Temperature and Precipitation Chart, November 2019 to October 2020 for San Diego, CA

Reader Comments

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Only people from SD get this, right!?


Thank you! We should be thankful for it because we always need it! Everyone’s always complaining about the drought and that we don’t get enough rain and now complaining that it’s raining!

Oohhh aahhh you are wrong! Haha

It rained almost every April 2003-2008. Do not write just to write haha.

As an April baby

I just had to leave a comment to the person who says its never rained in April as a person born in April I CAN TOTALLY TELL YOU THAT IS FALSE!!!!!!! have you ever heard of the saying APRIL SHOWERS BRING MAY FLOWERS hmmmm I wonder why that is could it be that it MEANS THAT IT RAINS IN APRIL so sorry to tell you but it rains in APRIL


Why are you so mad about this small thing?

Bay Area rains

Sometimes we wish we were wrong, too. Hope you get some relief, Sarah. Thanks for letting us know you care so much!

If you dont like the rain

Then move!! To someplace hot


People can't always pick up and move. A little grumbling and ventilating relieves stress. People have done this since there have been people

Pretty much useless

They keep updating their forecasts after the event has happened! Bogus models and antiquated and dated approach. Sorry. Get in with the times


The Editors's picture

We do not change our long-range forecasts after they have been published. Our forecasts are created up to 18 months in advance based on a number of factors, including solar activity, historical and forecasted weather patterns, and atmospheric conditions. As climate science has evolved, so have our forecasting methods, though we still rely on the basic theory that our founder used 228 years ago.

If you are looking for the latest, up-to-the-minute weather info, then I’m afraid our forecasts won’t be of much help. However, if you want to get a general idea of what weather to expect five months from now, our forecasts are the ones to use—and with an overall average accuracy of 80%, we still have faith in our methodology!