2019-2020 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 2020 Old Farmer’s Almanac, available online and in stores.

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

Free 2-Month Weather Forecast

September 2019 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Sep 1-4Sunny; hot north, warm south
Sep 5-10Sunny, cool
Sep 11-20Sunny, hot inland; A.M. sprinkles, P.M. sun coast
Sep 21-23Sunny; turning hot north, warm south
Sep 24-30Scattered showers, cool
Septembertemperature 70.5° (2° above avg. coast, 1° below inland)
precipitation 0.5" (0.5" above avg. north, avg. south)

October 2019 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Oct 1-4Sunny, cool
Oct 5-11Sunny, turning warm
Oct 12-19Sunny, warm north; A.M. sprinkles, P.M. sun south
Oct 20-25Rainy periods, cool
Oct 26-31Sunny, cool
Octobertemperature 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

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 Luis Obispo, CA

Reader Comments

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The forecast is right.

The summer has been cooler than the last few years and we have had rain already early September. The weather has already changed to fall like weather, with more rain coming the middle of Sept. No heat wave this summer of 2019. Enjoy this early fall, No Indian summer.

https://www.almanac.com/weather/longrange/CA/Sacramento

March is the sole month without data representation, and we've having rain or showers five days out of seven. Why no forecast???

Number of Days it has rained

Does anyone know where I can find a comparison of the average number of days it rains versus the actual number of days it has rained? Example: November, 2018: 8 Rain Days on Average/XX Actual Rain Days. Thanks.

3 Years Drought Now This?

I think I might take back my wishes for rain!

Rain

Right??!! So agree! Enough already. Hard to be a beach bum with all this madness. I long for 90 to 100 degree heat!! Looove it.

The Rain in NorCal

Is such a drag!!! Gotta get our Sundance mojo going! This is too much! Makes me miss LA.

It never rains in the Bay Area in April

If it keeps raining in the Bay Area through April I am going to lose my mind. We have had nearly constant rain storms since mid-October. I really hope this forecast is wrong.

Frisco rain

I hope it continues to rain through June!!!

Rain in california

Im from san diego california. We need all the rain we can get. It would be nice if it rains all. Year round .

Yes!

Only people from SD get this, right!?

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