Avg High
San Francisco in April
Verdict
In San Francisco, April has a distinct spring feel. As the season moves along, the weather is warming up. You can usually expect a mild month that feels manageable day to day. Breezes can be part of the character, especially in exposed spots.
It suits travellers who want straightforward weather for sightseeing and day trips. Lookouts and coastal walks can feel sharper when the wind is up.
Avg Low
Rain
Daylight
13h
What to expect
- Daytime feel - Easygoing temperatures with a noticeable cool-down after sunset. It can feel cooler than the thermometer suggests.
- Showers & dry spells - Some rain, some shine. You’ll get wet windows, then dry windows. Keep a light rain layer handy.
- Sun & UV - Sun protection matters. Sunscreen and a hat quickly become part of the daily routine. This is a 'don't forget the hat' month.
- Exposure - Often breezy, and gusts can make exposed walks feel cooler and more blustery. On the water or higher ground it feels stronger.
April in context
How it compares to the rest of the year in San Francisco.
Hottest (avg)
#7 / 12
Wettest (avg)
#6 / 12
Daylight Hours
#5 / 12
Windiest (avg)
#3 / 12
Highest UV
#5 / 12
Most Humid
#9 / 12
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight
- 13.2 hours
- UV index (max)
- 8
- Typical sun hours
- 05:33 – 18:45
Rain & Snow
- Total
-
- Rainy days
- 6
- Cloud cover
- 46%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 76%
- Wind (avg)
-
- Wind (max gusts)
-
Frequently asked questions
Is April a good time to visit San Francisco?
Typical April days in San Francisco reach highs of 17°C (63°F) with nights around 9°C (48°F). It usually feels mild by day and cool after dark. Overall, April sits in the middle of the San Francisco climate range.
What are temperatures like in April?
Daytime temperatures in April typically peak near 17°C (63°F), while nights drop to around 9°C (48°F). Expect mild afternoons and cool evenings.
How much does it rain in April?
Rainfall in April averages 41 mm (1.6 in) across roughly 6 days. Overall it is a moderately wet time of year, so showers are usually brief rather than all-day downpours.
How many hours of daylight are there in April?
You can expect about 13 hours of daylight in April. Sunrise is typically around 05:33 and sunset near 18:45. You get long days with comfortable amounts of daylight.
How strong is the sun in April?
UV levels are often high (around 8). Regular sunscreen and a hat are recommended.
Is it windy in April?
In April, average wind speeds are around 17 km/h (11 mph), with gusts on the windiest days reaching about 60 km/h (37 mph). On the ground, it is it can feel quite windy at times, particularly when weather systems move through.