TravelCharika

Best time to visit San Francisco

All twelve months scored on daily temperature, rainfall, humidity and holiday crowding.

San Francisco
Photo by Frank Schulenburg, CC BY-SA 4.0, via Wikimedia Commons.
Go in Apr, May, Jun, Jul or Sep — these months score within a whisker of each other; 19C max, 2 rainy days. Aug is the next best.
Where to stay San Francisco · 12–19 May 2027 Things to do tours and tickets in San Francisco

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Month by month

MonthMax °CRain days HumiditySun h/day VerdictWhy
Jan 15° 8d 80% 7.2h ok 15C max, 8 rainy days
Feb 15° 7d 76% 8.8h good 15C max, 7 rainy days
Mar 16° 9d 75% 9.8h good 16C max, 9 rainy days
Apr 17° 4d 74% 11.2h sweet spot 17C max, 4 rainy days
May 19° 2d 73% 13.2h sweet spot 19C max, 2 rainy days
Jun 21° 0d 72% 13.6h sweet spot busy peak: Summer weather attracts tourists to the city's many outdoor…
Jul 21° 0d 75% 13.7h sweet spot busy peak: Summer weather attracts tourists to the city's many outdoor…
Aug 23° 0d 76% 12.6h goodbusy peak: Summer weather attracts tourists to the city's many outdoor…
Sep 23° 0d 75% 11.7h sweet spot 23C max, 0 rainy days
Oct 22° 1d 70% 9.9h goodbusy shoulder season
Nov 17° 5d 76% 8.9h good 17C max, 5 rainy days
Dec 15° 9d 80% 7.0h okbusy peak: Holiday season brings visitors for events and shopping.

A busy month is a crowded one, not a bad one — usually it is crowded because the weather is good. It is flagged rather than scored down, and crowds alone never make a month “avoid”: that is reserved for weather worth skipping.

Getting there

How far San Francisco is, and what it costs, depends on where you set off from — the months above do not.

The year in San Francisco

The climate normals are not available; therefore, some details may vary. Generally, San Francisco has a cool summer fog but can also experience unexpected weather.

Busiest
early Jun to late Aug — Summer weather attracts tourists to the city's many outdoor attractions.
early Dec to late Dec — Holiday season brings visitors for events and shopping.
Quieter, still good
early Mar to late May — Spring offers mild weather and fewer crowds.
early Sep to late Oct — Early fall has pleasant weather and less tourist congestion.

Written by a language model from the climate figures above. The month-by-month table is measured — ten years of ERA5 readings and published holiday calendars — and where the two disagree, the table is the one to believe. The busiest and quieter periods here also count toward the crowd score.

What San Francisco is like

The centerpiece of the Bay Area, San Francisco is one of the most visited cities in the world, and with good reason. The cultural center of northern California, San Francisco is renowned for its mixture of scenic beauty and unique culture that makes it one of the most vibrant and desirable cities in the nation, if not the world. Sandwiched between the San Francisco Bay and the Pacific Ocean on a small square of land seven miles (11 km) on each side, San Francisco offers a wealth of treasures for the visitor, from the windswept and often foggy bay to the steep hills lined with Victorian homes that overlook the spectacular scenery of the city.

Worth seeing
San Francisco has much to see — these are just the most significant sights. For more detail see the individual district sections, often linked from this entry. Passes are available which offer discounts to some attractions: San Francisco CityPASS. Gets admission to some museums, the Zoo and a Blue and Gold Fleet bay cruise. (updated Aug 2026) There are many highlight walks you can take to really capture the feel of the city and see a whole lot of attractions at the same time. Some of the best ones are: The Marina and the Presidio.
Worth doing
One of the best ways to see San Francisco is from the waters of San Francisco Bay. There are many companies offering harbor tours of varying durations and prices but they all provide marvelous views of the bay, the bridges, the island of Alcatraz and the city. Only specific island tours are allowed to land at Alcatraz, but the typical harbor tour will circle the island at a slow crawl, giving you plenty of opportunity to photograph the now-inactive prison from the water. Also consider taking a ferry from San Francisco across the bay to Tiburon, Sausalito, or Alameda. Same views for a fraction of the price. Most tours leave from docks at Fisherman's Wharf near Pier 39.
Getting in
San Francisco International Airport (SFO IATA), ☏ +1-800-435-9736. Located about 10 mi (16 km) south of the city, is the Bay Area's major international airport (and one of the busiest in the nation) and has numerous passenger amenities including a wide range of food and drink establishments, shopping, baggage storage, public showers, a medical clinic, and assistance for lost or stranded travelers and military personnel. SFO has four terminals; as a rule of thumb, Alaska Airlines and American Airlines use Terminal 2, United Airlines has Terminal 3, most other domestic carriers use Terminal 1, and all foreign airlines use the International Terminal.
Getting around
Cross streets. San Francisco streets are numbered (100 per block) from the beginning of the street, and even and odd numbers are always on opposite sides. In the absence of GPS navigation, it is best when getting an address to also ask for a cross street or neighborhood name. Most of the time, if a street touches Market Street (San Francisco's main street), that's the zero block. Addresses change by 100 each block, so a building at 1275 Foo street is often 12 to 13 blocks away from where Foo St. hits Market St. Numbered streets and avenues.
Staying safe
A look at Stanley Robert's People Behaving Badly series will give you an inside look of usually petty crime in the city. However, it is very unlikely you'll encounter any violent or petty crime as long as you use your common sense and are vigilant. The areas that one should be most cautious are in the neighborhoods of Bayview-Hunters Point, Visitacion Valley, Sunnydale and Ingleside in Southeast San Francisco, as well as the Tenderloin, parts of Western Addition (including the Fillmore District), and parts of the Mission. San Francisco has relatively little violent crime, with most of these murders occur in the southeast neighborhoods of the city.

From the Wikivoyage article on San Francisco, written by travellers and licensed CC BY-SA 4.0; the full article has far more. The numbers above are measured; this is experience.

Before you go

Cost of livingexpensive — prices run about 100% of the United States' (World Bank, 2025)
CurrencyUnited states dollar
LanguagesHawaiian, Spanish, Samoan, Chamorro
PlugsType A and B, 120 V
DrivingOn the right
Emergency911
Calling code+1
Travel advice No advice against travel — UK Foreign Office, updated 2026-08-18

Health. Before you travel check that: your destination can provide the healthcare you may need you have appropriate travel insurance for local treatment or unexpected medical evacuation This is particularly important if you have a health condition or are pregnant. Emergency medical number Dial 911 and ask for an ambulance. Contact your insurance or medical assistance company quickly if you’re referred to … More.

Facts from Wikidata (CC0), the UK Foreign Office (Open Government Licence) and the World Bank, refreshed 2026-09-23. The advisory is written for British travellers; entry rules depend on your passport.

The rest of the trip

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