When to go · San Francisco
San Francisco in September
Avoid month. Listed as a month to avoid: Sep–Nov (wettest; the road north and river crossings get muddy).
Key facts
- Verdict
- Avoid
- Temperature
- 30°C (86°F)86°F (30°C) / 23°C (73°F)73°F (23°C)
- average high / low
- Rain days
- 20
- Crowds
- Low
- Panama overall
- Prices
- Low
- Panama overall
Verdict
Listed as a month to avoid: Sep–Nov (wettest; the road north and river crossings get muddy).
Is another month better than September?
September is rated avoid. These months rate higher:
Weather in September
- San FranciscoHighs around 30 °C (86 °F), lows around 23 °C (73 °F), rain on about 20 daysHighs around 86 °F (30 °C), lows around 73 °F (23 °C), rain on about 20 days
Crowds and prices
- Crowds · Panama overall
- Low
- Prices · Panama overall
- Low
Panama overall: Driest spell in Bocas del Toro; Pacific wet.
Compare two months
Weather, crowds and prices for any two months in San Francisco, side by side.
Verdict
Sep: Avoid
Jan: Great (better)
Daytime high
Sep: 30 °C (86 °F)86 °F (30 °C)
Jan: 32 °C (90 °F)90 °F (32 °C)
Night low
Sep: 23 °C (73 °F)73 °F (23 °C)
Jan: 22 °C (72 °F)72 °F (22 °C)
Rain days
Sep: 20
Jan: 3 (better)
Crowds
Sep: Low
Jan: High
Prices
Sep: Low
Jan: High
Festivals listed
Sep: 0
Jan: 0
September: Listed as a month to avoid: Sep–Nov (wettest; the road north and river crossings get muddy).
January: Inside San Francisco's best window: Jan–Apr (dry season).
San Francisco: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen
- A rain jacket or umbrella and shoes that dry fast