September.
According to weather.com, the warmest month on average is September with an average high of 71°F and low of 56°F. San Francisco gets about 15 days per year with a temp over 90°F. Typically, there are not more than 3 over 90 degree days in a row. Most importantly, even in the heat waves, it always cools down at night.
Contents
What month has the best weather in San Francisco?
The best time to visit San Francisco is from September to November. Believe it or not, fall offers some of the city’s warmest temperatures year-round, not to mention fewer crowds than summer. Spring is another good time to visit thanks to its mild temperatures and lack of rain (compared to other parts of California).
What is the sunniest month in San Francisco?
May
On average, May is the most sunny month with 325 hours of sunshine. December has on average the lowest amount of sunshine with 160 hours.
What are the coldest months in San Francisco?
San Francisco County’s coldest month is January when the average temperature overnight is 46.4°F.
Average Temperatures for San Francisco County.
| Month | Low | High |
|---|---|---|
| Jan | 46.4°F | 58.1°F |
| Feb | 48.5°F | 61.4°F |
| Mar | 49.2°F | 62.5°F |
| Apr | 50.1°F | 64.5°F |
What is the warmest time in San Francisco?
September
The warm season lasts for 4.4 months, from June 13 to October 24, with an average daily high temperature above 69°F. The hottest month of the year in San Francisco is September, with an average high of 72°F and low of 58°F.
Why is San Francisco so cold?
Why is San Francisco cold all the time? The city is actually a peninsula, surrounded on three sides by cool water where the Pacific Ocean on the west meets the bay on the east. When warm air mixes with this cool water, it creates fog. This is what we like to refer to as our ‘natural air-conditioning’!
What is the foggiest month in San Francisco?
June
What is the Foggiest Month in San Francisco? The warmer summer months of June through August are the foggiest time in San Francisco. However, the foggiest overall month is probably June. Golden City locals sometimes refer to a “June gloom,” referring to the damp, cool, fog-laden days of early summer.
Does it ever get hot in San Francisco?
The Warmest Months in San Francisco
September and October are usually the warmest and sunniest months, when San Francisco gets its Indian summer. April and May can also be warm and sunny. It doesn’t normally get hot in the city although spring and fall sometimes see temperatures in the 80’s.
Is San Francisco cloudy?
And since San Francisco is on the bay, the cold air and fog tend to linger over the city. The good news is that despite the fog and clouds, the temperatures in San Francisco are mild year round and the summers see very little rain.Be ready for unexpected weather when you visit this charming California city.
Does San Francisco have good weather?
The good news: San Francisco has a very mild climate. It rarely gets out of the 55 to 65 degree range (12 to 18°C), summer or winter. There’s no bad news! Just a reminder to visitors that it’s often cool and windy, especially in the afternoon.
Is it cold in San Francisco in February?
San Francisco weather in February is usually quite a bit warmer than the rest of the US, Canada, Europe and other northern destinations during this month. So, even though we get some rain, it might be a nice change of temperature from those cold winter days in other parts of the northern hemisphere in February.
What is winter like in San Francisco?
Winter, from December to mid-March, is mild and quite rainy. There are, however, sunny and dry periods, sometimes long. Very cold days are rare: at most, the temperature can approach freezing (0 °C or 32 °F) during the night, and only on colder periods it remains about 8/10 °C (46/50 °F) during the day.
Has San Francisco ever had snow?
Snowstorms in downtown San Francisco are rare; in fact, during the last 150 years there have been only six documented snowfall events with one inch or more measured in that district.(The last time San Francisco’s financial district received an inch of snow was December 11, 1932.)
What months are summer in San Francisco?
San Francisco has dry periods in May, June, July, August and September. The warmest month is September with an average maximum temperature of 21°C (69°F). The coldest month is January with an average maximum temperature of 14°C (57°F).
What is summer like in San Francisco?
Summer in San Francisco is sometimes gloomy, foggy, and chilly. Those warm-looking, sunny beaches you see on film are far south of San Francisco.
Why is San Francisco windy?
There is a system of high pressure over the Pacific Ocean called the North Pacific High. In the summer, it gets stronger, creating big clockwise winds over the ocean. Those winds push the surface water of the ocean away from the California coastline. Very cold water from deep in the ocean rises to the surface.
Why is San Fran so dirty?
The reason tourists, such as myself, find San Francisco so dirty is because of the tourist attractions, also known as Mission Street and Union Square, overlapped with the Tenderloin. The Tenderloin is an area in San Francisco that is the most densely populated with homeless people and is known for being dirty.
Is San Francisco safe to walk at night?
Walking in San Francisco at night can be safe, but we really wouldn’t recommend it. If you’re on a night out, stick with a big group of people and don’t wander off alone. Avoid the sketchy neighborhoods completely at night.
Why is San Francisco colder than Seattle?
San Francisco has a warm-summer Mediterranean climate with wet, mild winters and warm, dry summers. San Francisco gets about 25” of rain per year and no snow. In Seattle, winters are cool and wet while summers are fairly dry. It’s rare to experience extreme cold or heat in Seattle thanks to the Puget Sound.
Is it cold in San Francisco in November?
In most years, San Francisco averages a daily maximum temperature for November that’s between 60 and 66 degrees Fahrenheit (16 to 19 degrees Celsius). The minimum temperature usually falls between 48 and 52 °F (9 to 11 °C). The days at San Francisco cool most rapidly during November.
Why is Golden Gate Bridge always foggy?
The Golden Gate Bridge has an influence in directing fog as it pushes up and pours down around the Bridge. “Advection fog” forms when humid air from the Pacific Ocean swoops over the chilly California current flowing parallel to the coast.This is common near any coastline.
