2020-2021 Long Range Weather Forecast for San Luis Obispo, 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

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)

September 2020 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Sep 1-3Showers, cool
Sep 4-8Sunny inland; am sprinkles, pm sun coast; cool
Sep 9-15Sunny; hot inland, cool coast
Sep 16-18Sunny, hot
Sep 19-27Sunny, warm
Sep 28-30Showers, cool
Septembertemperature 71° (1° above avg.)
precipitation 0.2" (avg.)

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 Luis Obispo, CA

Reader Comments

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So Cal rain forecast - SO WRONG

This site is often way off for rain forecasts for So Cal because it lumps Los Angeles and other areas south of Santa Barbara together with areas as far north as San Francisco - a distance of hundreds of miles - and as we know, up north is WAY wetter than we are, and consistently so. It looks like you can just plug in your zip code and get a more accurate forecast, but it really doesn't seem to work that way. I really wish they separated the north and south more accurately. Obviously they are WAY OFF once again!!

Rain???

The fact is Southern California feels Doomed to NO RAIN

So wrong

Is it winter or summer? Nearly 90° in JANUARY?!?! We havent gotten a winter at all!!

Rain forecast for January

Wrong wrong wrong!!! No rain I'm sight as a matter of fact heat heat heat!!! Please don't forecast rain for Southern California that's a joke.

Hehe

I'm not entirely sure it is their fault that it's not raining. Perhaps a local news stations website would be a better choice for up to the minute forecasts. I just use farmers for trying to narrow down planting times for the garden and other seasonal planning. I've always found them to be reliable in general. But long range weather forecasts are difficult at best as their are many unknown variables to account for. I would suggest wunderground.com for local up to date weather.

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