2026 Climate Averages

Weather: San Francisco — April

Conditions are pleasant for sightseeing, though you might encounter occasional showers.

👍 Climate Overview

April is a good time to visit San Francisco. Warm weather with highs of 19°C—great for outdoor activities. Rainfall is rare, so you can leave the umbrella at home. Temperatures vary significantly between day and night—layering is recommended. Being off-peak, you'll find better deals and fewer crowds. At 13°C, the sea is too cold for most swimmers.

8.8
GoTripzi Score Excellent

Based on weather comfort, crowds, prices, and activity options

Avg High

19°C

Avg Low

9°C

Rainy days

3days

Daylight

13.1h

Rainfall

17mm

Sunshine

11.4h/day

Humidity

70%

Humid
Sun Strength

9.3

Very High
Wind

18 km/h (gusts 40)

Sea Temp

13°C ❄️ Cold

Is April a good time to visit San Francisco?

Conditions are pleasant for sightseeing, though you might encounter occasional showers.

Now

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Feels like --
Wind --
Humidity --
UV Index --
Local time —

Air Quality

Travel Context

  • Crowds
    Quiet
  • Travel Costs Shoulder Rates

Daylight

Sunrise

06:36

Sunset

19:45

13.1h daylight

Visiting San Francisco in April: Pros & Cons

Pros

  • Comfortable temperatures for sightseeing
  • Minimal rainfall — great for outdoor plans
  • Abundant sunshine for beach and outdoor fun
  • Fewer crowds and better hotel deals

Cons

  • Sea too cold for comfortable swimming
  • Very high UV — sunscreen and shade essential

Things to Do in April

Recommended for This Weather

🚶 Walking tours & sightseeing
🚲 Cycling & bike tours
🥾 Hiking & nature trails
🍜 Food tours & culinary experiences
🎭 Cultural tours & local experiences

San Francisco Weather by Month

Month Avg High Avg Low Rain Sunshine Humidity UV Index Crowds Condition
Jan 15°C 7°C 7d (71mm) 7.2h
78% Humid
3.5 Moderate
Good
Feb 17°C 7°C 6d (59mm) 8.5h
72% Humid
5.2 High
Good
Mar 17°C 8°C 10d (76mm) 9.7h
72% Humid
6.7 High
Good
Apr Current 19°C 9°C 3d (17mm) 11.4h
70% Humid
9.3 Very High
Good
May 22°C 11°C 2d (11mm) 12.8h
68% Humid
10.8 Extreme
Good
Jun 23°C 13°C 0d (0mm) 13.4h
69% Humid
11.4 Extreme
Good
Jul 23°C 14°C 0d (0mm) 13.1h
73% Humid
11 Extreme
Good
Aug 25°C 15°C 0d (1mm) 12.4h
73% Humid
9.9 Very High
Good
Sep 25°C 15°C 0d (3mm) 11.2h
73% Humid
8.1 Very High
Excellent
Oct 24°C 12°C 2d (23mm) 9.5h
69% Humid
6 High
Excellent
Nov 18°C 9°C 6d (44mm) 8.1h
73% Humid
4.1 Moderate
Good
Dec 14°C 7°C 11d (109mm) 6.5h
82% Very Humid
3 Moderate
Good

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Your Best MonthJunScore: 8.4
1.Jun
8.42.Jul
8.43.Apr
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5.610.Oct
5.611.Nov
5.612.Dec
5.6

Where to Stay

See hotels, apartments & rentals around San Francisco – live prices from Booking.com, Expedia, Vrbo and more

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San Francisco

San Francisco: walk the Golden Gate Bridge, tour Alcatraz, ride cable cars up steep streets, and explore a major tech innovation hub.

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What to Pack for April

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

Moderate Quiet

🎒Personalized Packing List

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📋Essentials
👕Clothing
👟Footwear
🎒Accessories
🧴Toiletries & Health

Planning a trip to San Francisco?

💰 Off-peak — great deals available now

Frequently Asked Questions

Is April a good time to visit San Francisco?
April is typically good for visiting San Francisco, with average highs of 19°C and around 3 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.
Does it get cold at night in San Francisco in April?
Nights in San Francisco during April are cool at around 9°C. Bring a jacket or sweater for evenings, especially if you plan to dine outdoors or take evening walks. The temperature drop from day to night can be noticeable.
What should I pack for San Francisco in April?
With highs of 19°C and lows of 9°C in April, we recommend: Warm layer for evenings, Comfortable walking shoes. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.
Does it rain a lot in San Francisco in April?
San Francisco typically sees around 3 rainy days in April. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.
Can you swim in San Francisco in April?
Swimming in San Francisco during April is possible but quite cold, with air temperatures around 19°C. Only brave swimmers venture in without a wetsuit. Consider indoor pools or thermal baths as an alternative if your hotel offers them.
How many hours of daylight are there in San Francisco in April?
In April, San Francisco gets approximately 13.1 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.
Is April peak season in San Francisco?
No, April is not peak season in San Francisco. Expect better value on accommodation, shorter queues at attractions, and fewer tourists at popular spots. This is an excellent time to experience the city like a local and enjoy a more authentic atmosphere.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: America/Los_Angeles)

Last Updated: February 2026

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