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

July 2020 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Jul 1-14Sunny inland; am sprinkles, pm sun coast; warm, then cool
Jul 15-20Sunny, turning hot
Jul 21-23Sunny inland; am clouds, pm sun coast; cool
Jul 24-31Sunny, warm
Julytemperature 71° (avg.)
precipitation 0" (avg.)

August 2020 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Aug 1-8Sunny, seasonable
Aug 9-11Scattered showers north, sunny south; cool
Aug 12-16Sunny, warm
Aug 17-25Sunny inland; am clouds, pm sun coast; cool
Aug 26-31Sunny, warm
Augusttemperature 69° (2° below avg.)
precipitation 0.2" (0.2" above avg. north, avg. south)

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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It is what it is....

Greetings! I was born in California in the 1950’s and I have noticed the weather pattern changes in the 1980’s. My father comes from long line of farmers and always stressed to study and pay attention to the skies and weather. He loved Farmer’s Almanac &studied and read and followed the suggestions. The weather patterns since 1980’s are very inconsistent at times no distinctions from one season to another.
We seriously need to work together as a team on this instead of pointing fingers and calling names. Political views have no tolerance in this Country now which is most unfortunate—I have big sister who is Liberal Left and myself Independent Republican, so you could imagine what conflicts this starts. But getting older both of us with health issues i have decided bury the hatchet be more tolerant and Life is easier for me. Let folks speak their minds get it out Freedom of Speech and i don't have to have the last word . Yes the weather isn’t always what i hoped or expected but this is the New Normal. I don’t have to like it But i can work on making the World a place of love and tolerance. Thank you

Calif weather

Certainly won't complain about the beautiful California weather & rain. But, PLEASE give me 1 or 2 good hard freeze days, purely for spring/summerinsect control purposes!

Complaining about the weather... All Weather is Good Weather

This is written as a response to a female writer from San Diego, who around Thanksgiving complained about it being too warm in our area for the holidays:

I think you ought to consider moving, too! Or just start embracing what you have and be grateful!

Climate change is real!
Therefore, not the first time it is happening in recorded history!
Just contemplate why Greenland is called what it is!

And for the record: I am an immigrant, a naturalized citizen and a San Diego County resident for almost 37 years. Danish native, psychologist, and linguist. But most importantly daughter and granddaughter of farmers. If there is anyone out there that knows the importance of weather and hard work, it's those folks!

That is also why I am so happy having just found this invaluable resource, searching the web for info. about the weather prediction for the Rose Parade in Pasadena, CA on Jan. 1st, 2020.

Hoping to go and take in the wonders of what can be created out of what is grown in the soil in this magnificent state! Especially after having watched Nan Sterman's A Growing Passion on KPBS yesterday morning, documenting the preparations, efforts, and accomplishments of a recent parade. Highly recommendable for anyone who wants to learn about gardening and growing our own food.

Best wishes to you all from


Jeffs comment on cal weather in Bay area.

Jeff. You can blame it on the Bosinova, or because you're in San Francisco, you can blame it on the Pelosi's, I do.
Merry Christmas. Any other belly aching blame it on Gavin, another Pelosi family stooge.


We had snow in Yucca Valley on Thanksgiving. The local mountains were covered and it was SO beautiful ! The only problem is my dogs refused to go outside- it was COLD ! Still very thankful we live in such a beautiful area.

OOPS! We had a White Thanksgiving (in Calif)!

We had a White Thanksgiving here in Pinon Hills, CA. 12" of snow. Melting down enough for me to get out for work tomorrow morning. :-(
OOPS! Don't mean to rub it in!! LOL


your chart "TEMPERATURE AND PRECIPITATION NOVEMBER 2019 TO OCTOBER 2020" is difficult to interpret. please put in better instructions

Stop Global Whining

You have choices.Take control of your life and choose to be happy.

Why Do Stores Even Sell Jackets?

I guess for those who travel elsewhere! Because we certainly don’t need any winter attire here. It’s going to be 81 degrees on Monday in San Diego. Who can think of cooking a Thanksgiving turkey in an oven with this weather? It just puts a damper on all the holidays when it stays warm and sunny through fall and “winter.” Yuck!

Jeff. you need to move. The

Jeff. you need to move. The big body of water that surrounds SF, provides you with the weather you apparently DON'T like. Move to the mountains of the west and you can get the weather you want. Do you know how many would die if there was a blizzard in SF? What it would do to the city and you? Be careful what you wish for. I just hope I don't get 9 inches of rain in the high desert in 30 hours again this year. But it isn't the record either.