2019 Long Range Weather Forecast for San Luis Obispo, CA

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

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

Free 2-Month Weather Forecast

August 2018 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Aug 1-4Sunny, cool inland; am sprinkles, pm sun coast
Aug 5-10Isolated showers, cool
Aug 11-15Sunny, cool north; sprinkles, warm south
Aug 16-21Sunny inland, am clouds coast; cool
Aug 22-31Sunny inland; am sprinkles, pm sun coast; cool
Augusttemperature 69° (2° below avg.)
precipitation 0.1" (avg.)

September 2018 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Sep 1-4Sunny, warm
Sep 5-17Sunny inland; am sprinkles, pm sun coast; cool
Sep 18-21Sunny, hot
Sep 22-28Sunny, turning cool
Sep 29-30Rainy north, sprinkles south; cool
Septembertemperature 69° (1° below avg.)
precipitation 0.5" (0.5" above avg. north, avg. south)

Annual Weather Summary: November 2018 to October 2019

Winter temperatures will be near or cooler than normal, with rainfall above normal in the north and slightly below normal in the south. The coldest periods will occur in late December, mid-January, and early February. Mountain snows will be near normal, with the stormiest periods in late November, late December, and early January. April and May will be cooler and drier than normal. Summer will be warmer than normal, with near-normal rainfall. The hottest periods will be in mid- to late June, mid-July, and late August. September and October will see temperatures above normal in the northeast and below normal in the southwest. Rainfall will be slightly above 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 2018 to October 2019

Temperature and Precipitation Chart, November 2018 to October 2019 for San Luis Obispo, CA

Reader Comments

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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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