SeasonScore
San Francisco, United States
Photo: Brocken Inaglory · CC BY-SA 3.0

United States

San Francisco in April

🌷 Spring

Cool and mostly dry.

🎒 Pack: light layers

Best months: Aug (9.5), Jul (9.4), Sep (9.4)

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Why April scores 9.2What goes into the score

How it works
🌡️ 17° / 10°C🌧️ 41 mm💧 dew pt 9°🍃 PM2.5 12
  • Weather comfort9.3
    • ✓Cool (17°C highs / 10°C lows)
    • ✓Comfortable humidity (dew point 8.7°C)
    • ✓Mostly dry (~41 mm rain)
  • Air quality8.9
    • ✓Good (within WHO guideline) (PM2.5 ~12 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut April side by side with another month
AprAug
Score9.2 Excellent9.5 Excellent
Season🌷 Spring☀️ Summer
High / low17° / 10°20° / 13°
Rain41 mm2 mm
Humiditydew pt 9°dew pt 12°
PM2.512 µg/m³10 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: San Francisco weather-station normals. Rainfall: San Francisco weather-station normals (national met service).

Holidays & crowdsApril 2027

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

No national public holidays in United States this month.

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore San FranciscoEvents, sights, food & souvenirs

Check event dates locally

Hilly Northern California city on a peninsula, known for the Golden Gate Bridge, cable cars, Alcatraz and distinctive neighbourhoods.

Events in April

No major events on our calendar for April.

Coming up later

Bay to BreakersDate variesUsually a Sunday in May

A long-running footrace famous for runners in costumes.

Why go: Roads along the route close.

Where: From the bay to Ocean Beach

San Francisco PrideDate variesUsually the last weekend of June

One of the largest Pride celebrations in the world.

Why go: Very crowded; transit is busy.

Where: Market Street and Civic Center

Fleet WeekDate variesUsually early October

Navy ships visit and the Blue Angels perform air shows over the bay.

Why go: Good viewing from Marina Green.

Where: Waterfront

Plan this tripTickets, data and transfers for San Francisco

Airport transfer Kiwitaxi

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