City and County of San Francisco (San Francisco)
May
Weather in City and County of San Francisco, California for May 2027
Your guide to City and County of San Francisco weather in May - trends and predictions
In general, the average temperature in City and County of San Francisco at the beginning of May is 16.1 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 16.8 °C by the end of May.
With an average of 2 rainy days, City and County of San Francisco experiences minimal rainfall in May.
Is May a good time to visit City and County of San Francisco? check out the best time to travel to City and County of San Francisco page.
✨ Is May a good time to visit City and County of San Francisco? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
29
Dry days
2
Rainy days
0
Snow days
17°/10°
Temperatures
20 km/h
Avg max wind
75 %
Avg humidity
City and County of San Francisco Weather May
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Temperatures trend during May in City and County of San Francisco
See the weather trend as well as the moving average line
May weather in City and County of San Francisco day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Sunny | 16° /10° | 0.3 mm | 5 | |
| May 2 |  Patchy rain possible | 16° /10° | 1.2 mm | 4 | |
| May 3 | Patchy rain possible | 17° /10° | 1.7 mm | 6 | |
| May 4 |  Light rain | 17° /10° | 3.6 mm | 5 | |
| May 5 | Patchy rain possible | 16° /10° | 1.3 mm | 4 | |
| May 6 | Sunny | 15° /10° | 0.4 mm | 5 | |
| May 7 |  Partly cloudy | 16° /9° | 0 mm | 6 | |
| May 8 | Sunny | 17° /10° | 0.2 mm | 5 | |
| May 9 | Sunny | 17° /10° | 0.2 mm | 5 | |
| May 10 | Sunny | 18° /10° | 0 mm | 6 | |
| May 11 | Sunny | 18° /10° | 0 mm | 6 | |
| May 12 | Patchy rain possible | 17° /10° | 1.3 mm | 6 | |
| May 13 | Sunny | 18° /10° | 0 mm | 6 | |
| May 14 | Sunny | 18° /10° | 0 mm | 6 | |
| May 15 |  Overcast | 17° /11° | 0 mm | 5 | |
| May 16 |  Cloudy | 17° /11° | 0 mm | 5 | |
| May 17 | Overcast | 18° /10° | 0 mm | 5 | |
| May 18 | Sunny | 20° /11° | 0 mm | 6 | |
| May 19 | Sunny | 19° /11° | 0 mm | 6 | |
| May 20 | Sunny | 17° /10° | 0 mm | 6 | |
| May 21 | Sunny | 17° /10° | 0 mm | 6 | |
| May 22 | Sunny | 17° /9° | 0 mm | 6 | |
| May 23 | Sunny | 17° /10° | 0 mm | 6 | |
| May 24 | Sunny | 18° /10° | 0 mm | 6 | |
| May 25 | Overcast | 17° /10° | 0.1 mm | 5 | |
| May 26 | Sunny | 16° /10° | 0.1 mm | 5 | |
| May 27 | Sunny | 16° /10° | 0 mm | 5 | |
| May 28 | Patchy rain possible | 15° /10° | 0.7 mm | 5 | |
| May 29 | Cloudy | 17° /10° | 0 mm | 5 | |
| May 30 | Sunny | 18° /10° | 0 mm | 6 | |
| May 31 | Sunny | 19° /11° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for City and County of San Francisco 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 City and County of San Francisco forecast closer to your planned date for the most up-to-date weather information.
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City and County of San Francisco in May - FAQ
What are the expected maximum and minimum temperatures in City and County of San Francisco during May?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in City and County of San Francisco during May?
Expect minimal rainfall in City and County of San Francisco during May, with a total of 11.2 mm over approximately 2 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in City and County of San Francisco during May?
The average wind speed in City and County of San Francisco during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in City and County of San Francisco
Explore the daily rainfall trends and prepare for City and County of San Franciscos May weather 💧
Typically, City and County of San Francisco has 2 rainy days in May with a total of 11.2 mm of rainfall.
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