San Luis Obispo
January
Weather in San Luis Obispo for January 2026
Your guide to San Luis Obispo weather in January - trends and predictions
In general, the average temperature in San Luis Obispo at the beginning of January is 18.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.3 °F by the end of January.
With an average of 2 rainy days, San Luis Obispo experiences minimal rainfall in January.
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Temperatures
Rain 🌧️
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29
Dry days
2
Rainy days
0
Snow days
17°/4°
Temperatures
13 km/h
Avg max wind
59 %
Avg humidity
San Luis Obispo Weather January
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  20° | 2  23° | 3 15° | ||||
| 4  16° | 5 18° | 6 18° | 7 17° | 8 19° | 9 20° | 10 19° |
| 11 18° | 12 16° | 13 17° | 14 19° | 15 19° | 16 19° | 17  13° |
| 18 14° | 19 14° | 20 18° | 21 19° | 22 21° | 23 22° | 24 18° |
| 25  10° | 26  11° | 27 13° | 28 14° | 29 12° | 30 13° | 31  13° |
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Temperatures trend during January in San Luis Obispo
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 | Overcast | 20° /4° | 0 mm | 4 | |
| Jan. 2 | Sunny | 23° /7° | 0 mm | 6 | |
| Jan. 3 | Overcast | 15° /8° | 0 mm | 4 | |
| Jan. 4 | Partly cloudy | 16° /6° | 0 mm | 5 | |
| Jan. 5 | Sunny | 18° /6° | 0 mm | 5 | |
| Jan. 6 | Overcast | 18° /6° | 0 mm | 4 | |
| Jan. 7 | Overcast | 17° /6° | 0 mm | 4 | |
| Jan. 8 | Sunny | 19° /5° | 0 mm | 5 | |
| Jan. 9 | Sunny | 20° /3° | 0 mm | 6 | |
| Jan. 10 | Sunny | 19° /6° | 0 mm | 5 | |
| Jan. 11 | Sunny | 18° /4° | 0 mm | 5 | |
| Jan. 12 | Sunny | 16° /0° | 0 mm | 5 | |
| Jan. 13 | Sunny | 17° /1° | 0 mm | 5 | |
| Jan. 14 | Sunny | 19° /3° | 0 mm | 5 | |
| Jan. 15 | Sunny | 19° /2° | 0 mm | 5 | |
| Jan. 16 | Partly cloudy | 19° /4° | 0 mm | 5 | |
| Jan. 17 | Cloudy | 13° /2° | 0 mm | 3 | |
| Jan. 18 | Overcast | 14° /0° | 0 mm | 3 | |
| Jan. 19 | Partly cloudy | 14° /1° | 0 mm | 4 | |
| Jan. 20 | Sunny | 18° /2° | 0 mm | 5 | |
| Jan. 21 | Overcast | 19° /2° | 0 mm | 4 | |
| Jan. 22 | Sunny | 21° /4° | 0 mm | 6 | |
| Jan. 23 | Sunny | 22° /3° | 0 mm | 6 | |
| Jan. 24 | Cloudy | 18° /6° | 0 mm | 4 | |
| Jan. 25 | Heavy rain at times | 10° /4° | 3.5 mm | 3 | |
| Jan. 26 | Moderate or heavy rain shower | 11° /5° | 4.8 mm | 3 | |
| Jan. 27 | Partly cloudy | 13° /3° | 0 mm | 4 | |
| Jan. 28 | Partly cloudy | 14° /1° | 0 mm | 4 | |
| Jan. 29 | Overcast | 12° /2° | 0 mm | 3 | |
| Jan. 30 | Overcast | 13° /2° | 0 mm | 3 | |
| Jan. 31 | Mist | 13° /2° | 0 mm | 3 | |
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Important Notice
Our weather forecast for San Luis Obispo in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Luis Obispo forecast closer to your planned date for the most up-to-date weather information.
San Luis Obispo in January - FAQ
What are the expected maximum and minimum temperatures in San Luis Obispo during January?
During January, expect a variety of temperatures with highs around 17° and lows near 4°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Luis Obispo during January?
Rainfall in San Luis Obispo during January is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 2 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in San Luis Obispo during January?
The average wind speed in San Luis Obispo during January is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in San Luis Obispo
Explore the daily rainfall trends and prepare for San Luis Obispos January weather 💧
UV exposure in San Luis Obispo during January
Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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Where is San Luis Obispo?Get accurate weather forecasts for San Luis Obispo, located at latitude 35.283 and longitude -120.66. Stay updated with localized weather information tailored for San Luis Obispo.
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