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The best months to get married in San Francisco are June through September, based on 30 years of weather records. In July, an average afternoon reaches 73°F, the average night drops to 55°F, and rain of 0.10 inch or more falls on almost no days.
The figures come from San Francisco International Airport. The method page explains how the score, rain odds and light times are worked out.
Pick Your Wedding Date In San Francisco
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Best Months To Get Married In San Francisco
Weakest for an outdoor ceremony: January and February. Average highs run from 58°F in January to 75°F in September.
The weather station is at San Francisco International Airport, south of the city. Fog is common on the western side of the city in summer, so ask your venue where the fog usually sits on a July afternoon.
San Francisco's Fog, Wind And Warm September
San Francisco's summer is the foggy season, not the sunny one. Cool ocean air pushes fog over the city through June, July and August, and the warmest month on average is September at 75°F, ahead of July at 73°F. The reading here is from the airport on the bay side, so ocean-facing neighborhoods will run cooler and grayer than the figures.
Wind is the other thing a table can't show. Waterfront and rooftop venues can be blustery in the afternoon, so ask how the venue handles it before you commit to an open-air ceremony.
The real rain risk is winter. January and February each see about 7 to 8 days of 0.10 inch or more, and the score drops to 65 or 66. For a dry day with the best odds of sun, September and October are the usual bets, scoring 96 and 93.
How San Francisco Compares With The Rest Of California
Its best month scores 99, the 3rd highest of the 15 places we checked. It gets about 39 days a year with 0.10 inch of rain or more, the 4th most of the 15 places. The state median is 8 months scoring 80 or higher, and San Francisco sits right on it.
| Place | Best month | Top score | Months 80+ | Rain days a year | Days 90°F+ a year |
|---|---|---|---|---|---|
| San Francisco | July | 99 | 8 | 39 | 4 |
| San Jose | May | 95 | 8 | 30 | 16 |
| Santa Rosa | May | 88 | 7 | 47 | 34 |
| Monterey | July | 100 | 8 | 34 | 2 |
| Sacramento | October | 89 | 4 | 36 | 84 |
San Francisco Wedding Weather By Month
| Month | Avg high | Avg low | Rain days | Days 90°F+ | Score |
|---|---|---|---|---|---|
| January | 58°F | 45°F | 7 | 0 | 66 |
| February | 61°F | 46°F | 7.8 | 0 | 65 |
| March | 63°F | 48°F | 6.3 | 0 | 76 |
| April | 66°F | 49°F | 3.4 | 0.1 | 86 |
| May | 68°F | 52°F | 1.6 | 0.4 | 93 |
| June | 72°F | 54°F | 0.5 | 0.7 | 97 |
| July | 73°F | 55°F | 0 | 0.3 | 99 |
| August | 73°F | 56°F | 0.1 | 0.6 | 98 |
| September | 75°F | 56°F | 0.2 | 1.6 | 96 |
| October | 72°F | 53°F | 1.5 | 0.5 | 93 |
| November | 64°F | 49°F | 4.1 | 0 | 84 |
| December | 58°F | 45°F | 6.9 | 0 | 66 |
The Odds Of Rain On Your Wedding Day In San Francisco
On an average July day in San Francisco, there is about a 0% chance of any measurable rain and about a 0% chance of rain heavy enough to spoil an outdoor ceremony.
| Month | Any measurable rain | 0.10 inch or more | Monthly rainfall |
|---|---|---|---|
| January | 35% of days | 23% of days | 3.89 in |
| February | 38% of days | 28% of days | 3.96 in |
| March | 33% of days | 20% of days | 2.73 in |
| April | 21% of days | 11% of days | 1.36 in |
| May | 11% of days | 5% of days | 0.48 in |
| June | 4% of days | 2% of days | 0.14 in |
| July | 0% of days | 0% of days | 0.00 in |
| August | 1% of days | 0% of days | 0.04 in |
| September | 3% of days | 1% of days | 0.07 in |
| October | 10% of days | 5% of days | 0.79 in |
| November | 24% of days | 14% of days | 2.04 in |
| December | 36% of days | 22% of days | 4.14 in |
Sunset And Golden Hour In San Francisco
| Month | Sunrise | Golden hour starts | Sunset | Daylight | Ceremony start |
|---|---|---|---|---|---|
| January | 7:23 AM | 4:35 PM | 5:15 PM | 9.9 hrs | 4:00 PM |
| February | 6:58 AM | 5:13 PM | 5:49 PM | 10.8 hrs | 4:45 PM |
| March | 7:19 AM | 6:42 PM | 7:17 PM | 12 hrs | 6:15 PM |
| April | 6:33 AM | 7:10 PM | 7:45 PM | 13.2 hrs | 6:45 PM |
| May | 5:59 AM | 7:35 PM | 8:12 PM | 14.2 hrs | 7:00 PM |
| June | 5:48 AM | 7:54 PM | 8:33 PM | 14.8 hrs | 7:30 PM |
| July | 6:00 AM | 7:52 PM | 8:30 PM | 14.5 hrs | 7:15 PM |
| August | 6:26 AM | 7:26 PM | 8:02 PM | 13.6 hrs | 7:00 PM |
| September | 6:52 AM | 6:42 PM | 7:17 PM | 12.4 hrs | 6:15 PM |
| October | 7:18 AM | 5:56 PM | 6:32 PM | 11.2 hrs | 5:30 PM |
| November | 6:50 AM | 4:20 PM | 4:58 PM | 10.1 hrs | 3:45 PM |
| December | 7:18 AM | 4:11 PM | 4:52 PM | 9.6 hrs | 3:45 PM |
Daylight runs from 9.6 hours in December to 14.8 hours in June.
More places: California wedding weather, the hub and special wedding dates.
San Francisco Wedding Weather Questions
What is the best month to get married in San Francisco?
July, at a score of 99, with June, August, and September close behind. San Francisco has 8 months scoring 80 or higher, against a California median of 8.
When does it rain most in San Francisco?
February has the most days with 0.10 inch of rain or more, at 7.8. Over a year that is about 39 days, the 4th wettest of the 15 places.
How hot does it get for a San Francisco wedding?
September is warmest, with an average high of 75°F. Across a year San Francisco sees about 4 days at or above 90°F, the 6th coolest of the 15 places.
Do guests need coats at a San Francisco summer wedding?
Yes, bring layers. The July average high is 73°F and the average low is 55°F, and wind plus fog can make an evening feel colder than those numbers.