Av. Or be prepared to make an emergency sweatshirt purchase. Jillian Dara is a freelance travel writer and fact checker. San Francisco in Summer . They aren't affected by temperature and happen in any weather. San Diego 74° 56° San Francisco 60° 52° San Francisco Pbs 56° 53° Sunnyvale 66° 48° Nearby locations. It can be chilly in San Francisco in the winter (at least by California standards), and it's also the rainy season. Don't expect to go swimming, either The ocean temperatures are far too cold unless you have an insulated wetsuit. precip. In other years, you'll hardly see a drop all winter. And pack lots of layers in case things change fast. You can get more detailed information about San Francisco's winter weather in the guide to San Francisco in December, January, and February. Those warm-looking, sunny beaches you see on film are far south of San Francisco. : Days with precipitation - Hours sun. The climate of San Francisco can be defined as "Mediterranean with cool summers". high : Average high in ºF - Av.low : Average low in ºF - Av. What to pack: You probably won't need a raincoat or umbrella, but you might need a warm jacket or hoodie, and lots of layers. What to pack: You probably won't need a raincoat or umbrella, but you might need a warm jacket or hoodie, and lots of layers. The average rainfall is particularly deceiving anywhere in California. Rain depends on what happens in the Pacific Ocean. Like spring, fall in San Francisco is generally sunny and rain-free. Station Data. Getting today's weather or a forecast for the upcoming week is easy, but if you're planning a visit, you want to know about the climate—what it's generally like. If you don't know Pacific coastal weather patterns, this may sound wrong — but it's true. Spring in San Francisco is sunny and mostly rain-free, making it one of the best seasons to visit before the summer fog sets in. : Hours of sunshine, Hi : Average high in ºF - Lo : Average low in ºF - Pre. If you're going from May through July, pack all the layers you think you'll need, then pack one more. It generates a cold, damp wind as it comes in. precipitation in. Winter is a fickle season, and just looking at the averages doesn't tell the whole story because weather patterns vary a lot from year to year. This myth goes back to ancient Greece. June Gloom is real. Your best bet to stay dry and warm is to check the forecast just before you go. Summer in San Francisco is sometimes gloomy, foggy, and chilly. : Average precipitation in inch - DP : Days with precipitation - Sun : Hours of sunshine, Monthly averages San FranciscoLongitude: -122.42, Latitude: 37.78Average weather San Francisco, CA - 94102, Monthly: 1981-2010 normalsHistory: 2007-2019. You can get more detailed information about San Francisco's spring weather in the guide to San Francisco in March, April, and May. It generates a cold, damp wind as it comes in. To find out more and what causes June Gloom, check out this guide. What to pack: You might need an umbrella or raincoat. Check the forecast before you pack to be sure your clothing covers the range of expected temperatures. If you're planning a San Francisco vacation, go to the San Francisco vacation planner for more information. Your Trip to San Francisco: The Complete Guide. And chillier in the evening than you might imagine. Fog is wet. Fog is wet. If your hair tends to frizz, pack extra products to keep it tamed. Average Temperatures and Rainfall by Month. Everything You Need to Know About the Weather in Naples, Italy, How to Plan Your Trip to Orlando With the Seasons in Mind, Weather in Kansas City, Missouri: Climate, Seasons and Average Monthly Temperature, The Weather and Climate in St. Augustine, Florida, The Weather and Climate in the Cinque Terre, The Weather and Climate in Big Bear, California, Surf City Seasons: Weather and Climate in Huntington Beach, California, The Weather and Climate on California’s Central Coast, Weather in San Francisco: Climate, Seasons, and Average Monthly Temperature. What to pack: Summer fog in San Francisco is colder than you can imagine. It can start as early as "May Gray," sometimes lingering into "No Sky July," or even extend to "Fogust." The averages may be more helpful than short-term weather forecasts. Monthly: 1981-2010 normals You can get more detailed information about San Francisco's summer weather in the guide to San Francisco in June, July, and August. If there were one word to describe San Francisco in summer, it would be foggy. Betsy has been writing about California for nearly more than two decades as TripSavvy's expert on the state. Golden Gate Bridge (4.34 mi) San Francisco Pbs (4.72 mi) Daly City (5.08 mi) Brisbane (6.54 mi) Sausalito (6.79 mi) Colma (6.93 mi) Monthly averages San Francisco Longitude: -122.42, Latitude: 37.78 Average weather San Francisco, CA - 94102. When the ocean experiences El Nino conditions, it can rain a lot. In fact, the Fourth of July can feel colder than New Year's Eve. : Average precipitation in inch - Days precip. precipitation in Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ... © US Climate Data 2020 | version 3.0 | by Your Weather Service |, Past weather December 2019 incomplete - Missing data, Average precipitation in : Av. In fact, the Fourth of July can feel colder than New Year's Eve. Some years, foggy, overcast conditions last longer than a month. And when it does rain, a whole month's rainfall often comes in just a day or two. If there were one word to describe San Francisco in summer, it would be foggy. You can get more detailed information about San Francisco's fall weather in the guide to San Francisco in September, October, and November. The truth is that earthquakes start miles underground. Average humidity isn't all that high compared to other places, but the fog can turn your carefully-smoothed hairstyle into something that looks more like a haystack. And chillier in the evening than you might imagine. Average precipitation in : Av. Her work has appeared in Travel + Leisure, USA Today 10Best, Michelin Guide, Hemispheres, DuJour, and Jetsetter. Some locals claim there's a phenomenon called "earthquake weather," which they say is hot and dry. Even though it is one of the driest months and doesn't rain, June is also the month that gets the least sun, with lots of fog that keep things chilly.