April · United States
Best time to visit San Francisco in April Weather, crowds & prices
Weather in San Francisco in April
Average temperature 12°C, 23 mm of rain, about 30 days with 6+ hours of sunshine and 79% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
April score
9.1/10
Ranked #6 of 12 months
- Avg temp
- 12°C
- Rainfall
- 23 mm
- Humidity
- 79%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
April in San Francisco scores 9.1/10 for sightseeing and cultural travel - an above-average month (#6 of 12). Expect around 12°C, 23 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Fog-kissed hills, bridges, and bay walks at their most pleasant from April through June.
April in San Francisco — one of the year's strongest windows (6th)
April averages 12°C (54°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 23 mm of rain — occasional showers rather than washed-out days — alongside about 30 days with 6+ hours of sunshine and 13 daylight hours.
A 9.1/10 puts this among the year's best months in San Francisco (6th of 12); only July scores higher, at 9.8/10.
Pack layers you can shed by midday plus one warm layer for the evening.
Plan for peak pricing, with crowds are moderate.
Frequently asked
- What is the weather like in San Francisco in April?
- In April, San Francisco averages 12°C, 23 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 9.1/10.
- Is April a good time to visit San Francisco?
- April earns a 9.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in San Francisco in April?
- Expect about 23 mm of rain in April. Average humidity is 79% and there are about 30 days with 6+ hours of sunshine.
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