2021 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 2021 Old Farmer’s Almanac, available online and in stores.

Note: Long range forecasts are regional, not city-specific.

Free 2-Month Weather Forecast

January 2021 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Jan 1-6Rain, then sunny, cool
Jan 7-15Sunny, turning warm
Jan 16-20Sunny, cool
Jan 21-26Sunny, warm
Jan 27-31Rainy, cold
Januarytemperature 55.5° (avg. north, 3° above south)
precipitation 2" (1" below avg.)

February 2021 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Feb 1-12Rainy periods, cool
Feb 13-21Sunny, cool
Feb 22-25Rain, some heavy; cold
Feb 26-28Sunny, cool
Februarytemperature 53° (2° below avg.)
precipitation 2.5" (1" below avg. north, 2" above south)

Annual Weather Summary
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.

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 2020 to October 2021

Temperature and Precipitation Chart, November 2020 to October 2021 for San Diego, CA

Reader Comments

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"Please please please tell me dry!"

Dry.

weather for the mnth. of april 2019

significant rain and or cold?

San Jose CA Long Range Forecast 2018-2019

I firmly believe that from San Jose CA south we will see a drier and warmer than normal Winter/Spring as Fall will be warmer and drier than normal. My theory is if summer has been warm and with the major wildfires CA has had and with predictions of more fires for the Fall the warming from the fires and particles could lead to a higher chance of a drought.

I think that CA from San Jose south may be in for another long stretch of dry weather despite the El Nino forecast. The resilant ridge of High Pressure that was in effect during our last multi-year drought and the lack of sunspots may constitute for the Old Farmers Almanac to rethink their Long Range Forecast.

If we have a lot fo sunspots during an El NIno/La Nina Year think 1998 more flooding will occur due to the Pineapple Express.

Do you predecct above normal percipitation in the form of major Pineapple Expresses with mudslides along Highway 1?

Will San Jose CA be in for a drier than normal winter/spring for 2018-2019?

April 6 2019

The wedding is in Pasadena ca

Will there be higher than

Will there be higher than normal rainfall for the High Desert of Southern California this coming Winter?

Winter weather

When will we be getting a substantial amount of rain and snow in lake Arrowhead ca.

Rain in Southern California

Nothing over 1/2" per storm for all of 2019, with only three storms in Southern California.

Weather prediction

Hi. When will there be snow in Big Bear from Nov '18 to Mar '19 (winter)?

snow in Big Bear

Hoping around Halloween we receive our first snowfall. Check out my youtube channel.

This summer

What are we looking at for late July to early August? Do you anticipate very hot temps in San Jose (90s or higher) or will it be more reasonable - or can we just not predict that very accurately yet?

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