Port San Luis, California Weather
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Weather Forecast for Port San Luis, California : San Luis Obispo County
Issued: 2:23 am PDT Sep 16, 2025 Latitude: 35.1749752 Longitude: -120.7551762 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Fog on Overnight Morning Fog on Tuesday Mostly Sunny on Wednesday 40% chance of thunderstorms on Thursday 20% chance of on Friday Morning Fog on Saturday Patchy Fog on Sunday Sunny on Monday
Low: 55°F High: 82°F High: 86°F High: 81°F High: 76°F High: 78°F High: 80°F High: 82°F
Low: 58°F Low: 57°F Low: 59°F Low: 60°F Low: 59°F Low: 61°F  
Fog Morning Fog Mostly Sunny Thunderstorms Partly Sunny Morning Fog Patchy Fog Sunny
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Current Conditions at
SAN LUIS OBISPO - (KSBP)
54°
Clear
Fog
as of 2:37 AM PDST
Rel. Humidity: 100%
Dew Point: 54°F
Visibility: 1/4 Miles
Pressure: 29.91 in.
Flight Rule: IFR
Wind Data
Calm
Current Conditions at
SANTA MARIA - (KSMX)
57°
Clear
Fog
as of 2:43 AM PDST
Rel. Humidity: 100%
Dew Point: 57°F
Visibility: 1/4 Miles
Pressure: 29.92 in.
Flight Rule: IFR
Wind Data
Calm
Fog on Overnight Overnight... Patchy dense fog. Otherwise, cloudy, with a low around 55. Calm wind.
Morning Fog on Tuesday Tuesday... Patchy dense fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Increasing Clouds on Tuesday Night Tuesday Night... Increasing clouds, with a low around 58. Northwest wind around 5 mph becoming calm in the evening.
Mostly Sunny on Wednesday Wednesday... Cloudy, then gradually becoming mostly sunny, with a high near 86. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 57. West southwest wind 5 to 10 mph becoming south southeast after midnight.
40% chance of thunderstorms Thursday Thursday... A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
50% chance of thunderstorms Thursday Night Thursday Night... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
20% chance of Friday Friday... A chance of showers. Partly sunny, with a high near 76.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 60.
Morning Fog on Saturday Saturday... Patchy fog before 11am. Otherwise, mostly sunny, with a high near 78.
Patchy Fog on Saturday Night Saturday Night... Patchy fog. Otherwise, mostly cloudy, with a low around 59.
Patchy Fog on Sunday Sunday... Patchy fog. Otherwise, mostly sunny, with a high near 80.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 61.
Sunny on Monday Monday... Sunny, with a high near 82.
Sun Almanac for Port San Luis, California
Sunrise: 06:47 AM
Sunset: 7:08 PM
Civil Sunrise:06:22 AM
Civil Sunset: 7:34 PM
Nautical Sunrise: 05:52 AM
Nautical Sunset: 8:03 PM
Astro Sunrise: 05:22 AM
Astro Sunset: 8:34 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.