San Luis Obispo County (San Luis Obispo)
May
Weather in San Luis Obispo County for May 2025
Your guide to San Luis Obispo County weather in May - trends and predictions
The forecast for the first days of May 2025 in San Luis Obispo County predicts a temperature of 21.7 °F, which is cooler than the historical average.
In general, the average temperature in San Luis Obispo County at the beginning of May is 25.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.6 °F by the end of May.
With an average of 3 rainy days, San Luis Obispo County experiences minimal rainfall in May.
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Temperatures
Rain 🌧️
More
28
Dry days
3
Rainy days
0
Snow days
20°/8°
Temperatures
15 km/h
Avg max wind
69 %
Avg humidity
San Luis Obispo County Weather May
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  25° | 2 27° | 3 27° | ||||
| 4 26° | 5 27° | 6 24° | 7 20° | 8 24° | 9 22° | 10 21° |
| 11 24° | 12 22° | 13  20° | 14 18° | 15 18° | 16 19° | 17  17° |
| 18 16° | 19 18° | 20  16° | 21 20° | 22 19° | 23 18° | 24 16° |
| 25 18° | 26 19° | 27 19° | 28 20° | 29 22° | 30 26° | 31 20° |
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Temperatures trend during May in San Luis Obispo County
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 | Sunny | 25° /10° | 0 mm | 5 | |
| May 2 | Sunny | 27° /11° | 0 mm | 5 | |
| May 3 | Sunny | 27° /11° | 0 mm | 5 | |
| May 4 | Sunny | 26° /10° | 0 mm | 5 | |
| May 5 | Sunny | 27° /10° | 0 mm | 5 | |
| May 6 | Sunny | 24° /9° | 0 mm | 4 | |
| May 7 | Sunny | 20° /7° | 0 mm | 6 | |
| May 8 | Sunny | 24° /9° | 0 mm | 6 | |
| May 9 | Sunny | 22° /9° | 0 mm | 6 | |
| May 10 | Sunny | 21° /10° | 0 mm | 6 | |
| May 11 | Sunny | 24° /10° | 0 mm | 6 | |
| May 12 | Sunny | 22° /9° | 0 mm | 6 | |
| May 13 | Partly cloudy | 20° /9° | 0 mm | 6 | |
| May 14 | Sunny | 18° /8° | 0 mm | 5 | |
| May 15 | Partly cloudy | 18° /8° | 0 mm | 5 | |
| May 16 | Partly cloudy | 19° /9° | 0 mm | 5 | |
| May 17 | Cloudy | 17° /9° | 0.3 mm | 4 | |
| May 18 | Cloudy | 16° /9° | 0.4 mm | 4 | |
| May 19 | Sunny | 18° /9° | 0 mm | 5 | |
| May 20 | Overcast | 16° /7° | 0 mm | 4 | |
| May 21 | Sunny | 20° /8° | 0 mm | 6 | |
| May 22 | Sunny | 19° /10° | 0 mm | 5 | |
| May 23 | Cloudy | 18° /8° | 0 mm | 4 | |
| May 24 | Overcast | 16° /7° | 0 mm | 4 | |
| May 25 | Partly cloudy | 18° /9° | 0 mm | 5 | |
| May 26 | Sunny | 19° /6° | 0 mm | 5 | |
| May 27 | Sunny | 19° /8° | 0 mm | 5 | |
| May 28 | Sunny | 20° /8° | 0 mm | 6 | |
| May 29 | Sunny | 22° /10° | 0 mm | 6 | |
| May 30 | Sunny | 26° /10° | 0 mm | 7 | |
| May 31 | Sunny | 20° /8° | 0 mm | 6 | |
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Important Notice
Our weather forecast for San Luis Obispo County in May 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 County forecast closer to your planned date for the most up-to-date weather information.
San Luis Obispo County in May - FAQ
What are the expected maximum and minimum temperatures in San Luis Obispo County during May?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in San Luis Obispo County during May?
Rainfall in San Luis Obispo County during May is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 3 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 County during May?
The average wind speed in San Luis Obispo County during May is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in San Luis Obispo County
Explore the daily rainfall trends and prepare for San Luis Obispo Countys May weather 💧
UV exposure in San Luis Obispo County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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San Luis Obispo County weather pages
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Where is San Luis Obispo County?Get accurate weather forecasts for San Luis Obispo County, located at latitude 35.283 and longitude -120.66. Stay updated with localized weather information tailored for San Luis Obispo County.
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