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

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 Luis Obispo, CA

Reader Comments

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Up coming 2019 & 2020 rainfall

Can't you give us an idea of our 2019 & 2020 rainfall for San Francisco Calif.? Just an idea---
Thank You

Rain prediction in San Francisci Ca November 2019

Planning a homeless outreach in San Francisco Ca on September 16, 2019 and would like to know the prediction of rain. Thank you

Winter 2018-2019 rainfall

Winter rainfall for the south turned out to be inaccurate and just the opposite of what you predicted. Rainfall in California was actually ABOVE normal, so much so that it ended the drought all over the state.

Amy you are wrong

The drought actually ended in 2017.

Northern California

Actually the drought ended in March of 2019. I agree that California should be split up into different climates. In Northern California, we have the rains that fill up our lakes and rivers and go through the delta down south. I weather is closer to southern Oregon's weather. If I go by what is listed it is wrong. It didn't predict snowmageddon that dumped so much snow on us after our wildfires left our soil unprotected.

Innacurate

We are heading into a record setting long term heatwave and your forecast is for warm and rain. Totally missed and mis forecasted this years summer completely

Accurate prediction

It Rained last night pretty heavily
And yes it’s hot
I hope August prediction is accurate

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.

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