San Francisco in September
Average Temperature: 24°C
Traveling to San Francisco in September is a pretty great experience if you're looking to enjoy the city with fewer crowds than in the peak summer months. The weather tends to be milder and less foggy compared to earlier in the summer, giving you better chances to see those iconic views of the Golden Gate Bridge and the city skyline without the usual blanket of fog. It's a nice time to explore neighborhoods like Fisherman’s Wharf, the Mission District, or Chinatown without feeling overwhelmed by tourists. Plus, the city’s outdoor spaces, like Golden Gate Park and the Embarcadero, are perfect for leisurely strolls or bike rides.
That said, San Francisco’s weather can be a bit unpredictable, so layering is key—you might start your day with sunshine and end it with a chilly breeze. While it's not exactly beach weather, the city’s unique vibe, excellent food scene, and cultural events make up for it. September also means you get to catch some local festivals and outdoor activities that pop up around this time, adding a little extra flavor to your trip. Just be prepared for some cool evenings and occasional wind, and you'll have a solid, enjoyable visit.
Average Monthly Temperatures
Cost Index
San Francisco is known for its relatively high travel costs compared to many other U.S. cities. Accommodation prices tend to be expensive due to limited availability and high demand, especially in popular areas near tourist attractions. Dining out can also be costly, with many high-end restaurants that push up the average food expense. Transportation within the city can add up, especially if relying on taxis or ride-sharing services. However, there are mid-range options for lodging and dining which prevent it from reaching the highest cost tier. Overall, San Francisco offers a premium travel experience, reflected in its $$$ cost index.
Location
San Francisco is located at coordinates 37.78° latitude, -122.42° longitude.
Weather Summary
September is warm in San Francisco with average temperatures of 24°C.