San Francisco weather in May
San Francisco in May averages 15°C (60°F) and 13 mm of rain. It is one of the driest months of the year here.
Of the twelve months in San Francisco, May is the sixth warmest and the fifth driest.
- Average temp
- 15°C (60°F)
11–20°C · 52–67°F
- Rainfall
- 13 mm
Not much rain
- Sunshine
- —
- Wind
- 22 km/h
What is San Francisco like in May?
Daytime
Days are mild.
Rain
Rain is usually light.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for San Francisco in May?
A warm mid-layer
Nights drop to around 11°C (52°F).
May compared with April and June
May in San Francisco is 1.4°C warmer than April and 21 mm drier than it, which averages 14°C (57°F).
May in San Francisco is 1.5°C cooler than June and 10 mm wetter than it, which averages 17°C (62°F).
Daylight in San Francisco in May
On 15 May the sun is up for 14 hours 14 minutes in San Francisco, rising about 05:59 and setting about 20:13 local time.
May ends 48 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 32 minutes short of June, the longest-lit month here.
Where to stay in San Francisco
Dates are a starting point for May.
Travel guides for San Francisco
What to read before you book.
San Francisco weather by month
TemperatureRainfall
How May compares with the rest of the year
May is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 11°C / 51°F | 99 mm |
| February | 12°C / 53°F | 100 mm |
| March | 13°C / 55°F | 69 mm |
| April | 14°C / 57°F | 35 mm |
| May | 15°C / 60°F | 13 mm |
| June | 17°C / 62°F | 4 mm |
| July | 18°C / 64°F | 0 mm |
| August | 18°C / 65°F | 1 mm |
| September | 18°C / 65°F | 2 mm |
| October | 17°C / 63°F | 19 mm |
| November | 13°C / 56°F | 50 mm |
| December | 11°C / 51°F | 106 mm |
Check another month
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FAQs about San Francisco in May
May climate averages for San Francisco, 1991–2020.
San Francisco averages 15°C (60°F) in May, ranging from about 11°C (52°F) at night to 20°C (67°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. May sees only about 13 mm, so rain is unlikely to affect your plans.
No. May averages 15°C (60°F) against 17°C (62°F) in June — 1.5°C cooler.
May is 1.4°C warmer than April, and 21 mm drier.
Yes. May falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what May is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 14 hours 14 minutes of daylight in mid-May, against 14 hours 46 minutes in June and 9 hours 34 minutes in December.
On 15 May, sunrise is about 05:59 and sunset about 20:13 local time. Both shift across the month — the month ends 48 minutes longer than it starts.
