When to go · San Francisco
San Francisco, month by month
The best months for San Francisco: Sep, Oct. Months to avoid: Jan, Feb, Jun, Jul, Aug.
Month by month
- JanuaryAvoidListed as a month to avoid: Jun–Aug (foggy/windy), Jan–Feb (rainy).14 °C (57 °F) / 7 °C (45 °F), 11 rain days57 °F (14 °C) / 45 °F (7 °C), 11 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Jun–Aug (foggy/windy), Jan–Feb (rainy).16 °C (61 °F) / 8 °C (46 °F), 10 rain days61 °F (16 °C) / 46 °F (8 °C), 10 rain daysCrowds: Low · 1 festival or holiday
- MarchGoodOutside the best window (Sep–Oct). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.17 °C (63 °F) / 9 °C (48 °F), 8 rain days63 °F (17 °C) / 48 °F (9 °C), 8 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGoodOutside the best window (Sep–Oct). Across United States: Good month for the Southwest, Washington cherry blossoms, the South; mountain roads still closed.18 °C (64 °F) / 10 °C (50 °F), 4 rain days64 °F (18 °C) / 50 °F (10 °C), 4 rain daysCrowds: Medium · 1 festival or holiday
- MayGoodOutside the best window (Sep–Oct). Across United States: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.20 °C (68 °F) / 12 °C (54 °F), 2 rain days68 °F (20 °C) / 54 °F (12 °C), 2 rain daysCrowds: Medium · 1 festival or holiday
- JuneAvoidListed as a month to avoid: Jun–Aug (foggy/windy), Jan–Feb (rainy).21 °C (70 °F) / 14 °C (57 °F), 1 rain days70 °F (21 °C) / 57 °F (14 °C), 1 rain daysCrowds: High
- JulyAvoidListed as a month to avoid: Jun–Aug (foggy/windy), Jan–Feb (rainy).22 °C (72 °F) / 15 °C (59 °F), 0 rain days72 °F (22 °C) / 59 °F (15 °C), 0 rain daysCrowds: High · 1 festival or holiday
- AugustAvoidListed as a month to avoid: Jun–Aug (foggy/windy), Jan–Feb (rainy).22 °C (72 °F) / 15 °C (59 °F), 0 rain days72 °F (22 °C) / 59 °F (15 °C), 0 rain daysCrowds: High
- SeptemberGreatInside San Francisco's best window: Sep–Oct.24 °C (75 °F) / 15 °C (59 °F), 1 rain days75 °F (24 °C) / 59 °F (15 °C), 1 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside San Francisco's best window: Sep–Oct.22 °C (72 °F) / 13 °C (55 °F), 3 rain days72 °F (22 °C) / 55 °F (13 °C), 3 rain daysCrowds: Medium
- NovemberMixedOutside the best window (Sep–Oct). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.18 °C (64 °F) / 10 °C (50 °F), 7 rain days64 °F (18 °C) / 50 °F (10 °C), 7 rain daysCrowds: Medium · 1 festival or holiday
- DecemberMixedOutside the best window (Sep–Oct). Across United States: Holiday lights in New York, ski season opens; flights and hotels peak around Christmas and New Year.14 °C (57 °F) / 7 °C (45 °F), 11 rain days57 °F (14 °C) / 45 °F (7 °C), 11 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in San Francisco, side by side.
Verdict
Sep: Great
Oct: Great
Daytime high
Sep: 24 °C (75 °F)75 °F (24 °C)
Oct: 22 °C (72 °F)72 °F (22 °C)
Night low
Sep: 15 °C (59 °F)59 °F (15 °C)
Oct: 13 °C (55 °F)55 °F (13 °C)
Rain days
Sep: 1 (better)
Oct: 3
Crowds
Sep: Medium
Oct: Medium
Prices
Sep: Medium
Oct: Medium
Festivals listed
Sep: 1
Oct: 0
September: Inside San Francisco's best window: Sep–Oct.
October: Inside San Francisco's best window: Sep–Oct.
San Francisco: figures are long-term averages from this guide, not a forecast.