California, USA
San Francisco cruise weather by month
What to expect when your ship is in San Francisco in any month: temperatures, how often it rains, wind, sea temperature and wave heights.
- 69°Fwarmest average high (September)
- 56°Fcoolest average high (December)
- 0%fewest rain days (July)
- 44%most rain days (December)
Weather in San Francisco right now
Weather in San Francisco by month
Average highs run from 56°F (13°C) in December to 69°F (21°C) in September. Rain falls on the fewest days in July and the most in December. Sea temperature and wave heights are for the water just off the port.
| Month | High / low | Rain days | Wind | Sea temp | Typical seas |
|---|---|---|---|---|---|
| January | 57 / 46°F14 / 8°C | 27% | 13 mph22 km/h | 54°F12°C | 7 ft (2.0 m)Moderate; rougher days up to 11 ft |
| February | 58 / 46°F14 / 8°C | 32% | 15 mph24 km/h | 54°F12°C | 7 ft (2.1 m)Moderate; rougher days up to 11 ft |
| March | 58 / 48°F14 / 9°C | 39% | 17 mph28 km/h | 53°F12°C | 7 ft (2.2 m)Moderate; rougher days up to 10 ft |
| April | 60 / 49°F16 / 10°C | 12% | 17 mph28 km/h | 53°F11°C | 6 ft (1.9 m)Moderate; rougher days up to 9 ft |
| May | 64 / 52°F18 / 11°C | 8% | 18 mph29 km/h | 52°F11°C | 6 ft (1.8 m)Moderate; rougher days up to 9 ft |
| June | 65 / 54°F18 / 12°C | 1% | 19 mph30 km/h | 54°F12°C | 6 ft (1.7 m)Moderate; rougher days up to 7 ft |
| July | 66 / 55°F19 / 13°C | 0% | 17 mph28 km/h | 56°F13°C | 5 ft (1.4 m)Moderate; rougher days up to 6 ft |
| August | 68 / 57°F20 / 14°C | 2% | 16 mph27 km/h | 57°F14°C | 4 ft (1.3 m)Moderate; rougher days up to 6 ft |
| September | 69 / 58°F21 / 15°C | 6% | 15 mph25 km/h | 60°F15°C | 5 ft (1.4 m)Moderate; rougher days up to 6 ft |
| October | 68 / 55°F20 / 13°C | 10% | 15 mph25 km/h | 59°F15°C | 6 ft (1.7 m)Moderate; rougher days up to 8 ft |
| November | 61 / 49°F16 / 10°C | 24% | 13 mph21 km/h | 55°F13°C | 6 ft (1.8 m)Moderate; rougher days up to 9 ft |
| December | 56 / 47°F13 / 8°C | 44% | 13 mph21 km/h | 54°F12°C | 6 ft (1.9 m)Moderate; rougher days up to 11 ft |
Check the forecast for your sailing
Upcoming cruises in San Francisco
6 ships from 5 cruise lines are scheduled here, 16 visits in total. The next 15:
Ships that visit San Francisco
- Ruby PrincessPrincess Cruises
- Azamara QuestAzamara
- Costa DeliziosaCosta Cruises
- KoningsdamHolland America Line
- Norwegian EncoreNorwegian Cruise Line
- Emerald PrincessPrincess Cruises
Nearby cruise ports
- Santa BarbaraCalifornia, USA
- Los AngelesCalifornia, USA
- Catalina Island (Avalon)California, USA
- San DiegoCalifornia, USA
- EnsenadaBaja California, Mexico
Wave heights are significant wave height on the Douglas sea state scale. What the numbers mean for a cruise. Sources and method are on the about page.