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Weather in City and County of San Francisco for May 2025

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 15.6 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 17.3 °F by the end of May.

  • With an average of 2 rainy days, City and County of San Francisco experiences minimal rainfall in May, ensuring that most days remain pleasantly dry.

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Average dry days
29
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/10°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
74 %
Avg humidity

City and County of San Francisco in May average weather

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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 day by day

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Date Weather Temperatures Rain UV More
May 1 Patchy rain possible
Patchy rain possible
16° /9° 0.8 mm 4
May 2 Moderate rain at times
Moderate rain at times
16° /9° 3.7 mm 4
May 3 Moderate rain at times
Moderate rain at times
17° /9° 5.2 mm 5
May 4 Moderate rain at times
Moderate rain at times
14° /8° 10.7 mm 4
May 5 Patchy rain possible
Patchy rain possible
15° /8° 0.2 mm 4
May 6 Patchy rain possible
Patchy rain possible
15° /9° 1 mm 4
May 7 Partly cloudy
Partly cloudy
16° /8° 0 mm 5
May 8 Patchy rain possible
Patchy rain possible
18° /9° 0.2 mm 5
May 9 Patchy rain possible
Patchy rain possible
20° /11° 0.1 mm 5
May 10 Sunny
Sunny
19° /10° 0 mm 6
May 11 Sunny
Sunny
18° /10° 0 mm 5
May 12 Sunny
Sunny
19° /10° 0 mm 5
May 13 Sunny
Sunny
21° /11° 0 mm 6
May 14 Sunny
Sunny
20° /11° 0 mm 6
May 15 Partly cloudy
Partly cloudy
19° /11° 0 mm 6
May 16 Sunny
Sunny
20° /11° 0 mm 6
May 17 Overcast
Overcast
19° /11° 0.1 mm 5
May 18 Partly cloudy
Partly cloudy
19° /10° 0 mm 6
May 19 Partly cloudy
Partly cloudy
18° /10° 0 mm 5
May 20 Partly cloudy
Partly cloudy
18° /10° 0 mm 5
May 21 Sunny
Sunny
19° /11° 0 mm 5
May 22 Sunny
Sunny
19° /10° 0 mm 6
May 23 Overcast
Overcast
17° /10° 0 mm 5
May 24 Partly cloudy
Partly cloudy
17° /10° 0.1 mm 4
May 25 Cloudy
Cloudy
16° /9° 0.2 mm 4
May 26 Overcast
Overcast
17° /10° 0 mm 5
May 27 Overcast
Overcast
17° /10° 0 mm 5
May 28 Patchy rain possible
Patchy rain possible
16° /10° 0.2 mm 4
May 29 Cloudy
Cloudy
18° /10° 0 mm 4
May 30 Partly cloudy
Partly cloudy
19° /11° 0 mm 6
May 31 Overcast
Overcast
18° /11° 0 mm 5
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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.

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 19° 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?
In May, City and County of San Francisco can expect light to moderate rainfall, totaling 44.7 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.
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.
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Location coordinates Where is City and County of San Francisco?

Get accurate weather forecasts for City and County of San Francisco, located at latitude 37.775 and longitude -122.419. Stay updated with localized weather information tailored for City and County of San Francisco.

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