Weather in San Francisco in May
Conditions are pleasant for sightseeing, though you might encounter occasional showers.
Climate Overview
May is a good time to visit San Francisco. San Francisco has a Moderate climate with average yearly highs of 18°C, lows of 12°C, and approximately 7 rainy days per month.
18°C
12°C
7days
14.2h
Is May a good time to visit San Francisco?
Conditions are pleasant for sightseeing, though you might encounter occasional showers.
Daylight
6:02 AM
8:12 PM
Weather by Month
| Month | High | Low | Rainy days | Condition |
|---|---|---|---|---|
| January | 13°C | 8°C | 8 | Good |
| February | 15°C | 8°C | 0 | Good |
| March | 14°C | 9°C | 9 | Good |
| April | 15°C | 10°C | 3 | Good |
| May | 18°C | 12°C | 7 | Good |
| June | 19°C | 13°C | 0 | Good |
| July | 18°C | 13°C | 0 | Good |
| August | 20°C | 15°C | 0 | Good |
| September | 21°C | 15°C | 0 | Excellent (best) |
| October | 22°C | 14°C | 0 | Excellent (best) |
| November | 16°C | 9°C | 3 | Good |
| December | 14°C | 8°C | 6 | Good |
Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025
What to Pack for May
Layers, a light jacket, comfortable walking shoes, and an umbrella.
Planning a trip to San Francisco?
Common Questions
Is May a good time to visit San Francisco? +
May is typically Good for visiting San Francisco, with average highs of 18°C and around 7 rainy days.
What should I pack for San Francisco in May? +
With highs of 18°C and lows of 12°C in {month}, we recommend: Layers, a light jacket, comfortable walking shoes, and an umbrella.
Does it rain a lot in San Francisco in May? +
San Francisco typically sees around 7 rainy days in May.
How many hours of daylight are there in San Francisco in May? +
In May, San Francisco gets approximately 14.2 hours of daylight per day.
Is May peak season in San Francisco? +
No, May is not peak season in San Francisco. Expect better value on accommodation and fewer tourists.
What is the best month to visit San Francisco? +
The best months to visit San Francisco are September, October, when the weather is optimal for sightseeing.
More San Francisco Guides
Best Time to Visit
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Things to Do
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Itineraries
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Overview
Complete travel guide for San Francisco: top things to do, itineraries, and typical costs.