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

United States

San Francisco in August

☀️ Summer

Pleasant and mostly dry.

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

‹
Every month at a glanceTap a month to open it
›

Why August scores 9.5What goes into the score

How it works
🌡️ 20° / 13°C🌧️ 2 mm💧 dew pt 12°🍃 PM2.5 10
  • Weather comfort9.7
    • ✓Comfortable temperatures (20°C highs / 13°C lows)
    • ✓Comfortable humidity (dew point 12.3°C)
    • ✓Mostly dry (~2 mm rain)
  • Air quality9.3
    • ✓Good (within WHO guideline) (PM2.5 ~10 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut August side by side with another month
AugJul
Score9.5 Excellent9.4 Excellent
Season☀️ Summer☀️ Summer
High / low20° / 13°19° / 12°
Rain2 mm0 mm
Humiditydew pt 12°dew pt 12°
PM2.510 µg/m³11 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 & crowdsAugust 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 August

No major events on our calendar for August.

Coming up later

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

Chinese New Year Festival and ParadeDate variesLunar calendar — usually February, date moves each year

One of the largest Chinese New Year parades outside Asia.

Why go: Crowded; arrive early for a good viewing spot.

Where: Chinatown and downtown

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

Plan this tripTickets, data and transfers for San Francisco

Airport transfer Kiwitaxi

Partner links: we may earn a small commission at no extra cost to you. It never affects scores.