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California Academy of Sciences, San Francisco

Best time to visit · San Francisco · United States

The best time to visit San Francisco

Weather, crowds, prices and events for every month, so you can pick the trip that suits you.

Updated By the AMZBooking editorial team

Photo: Dennis G. Jarvis, CC BY-SA 2.0

Quick answer

The best time to visit San Francisco is September to October, when the summer fog usually clears and the city has its warmest, sunniest weather. April and May are also pleasant and quieter. Summer (June to August) is the busiest season but often cool, grey and windy, while winter brings rain, green hills and lower hotel prices.

Key facts

Best months
April–May and September–October
Shoulder season
March, June and November
Warmest month
September (avg high 23°C (73°F))
Coldest month
January (avg high 14°C (57°F))
Rainiest month
January (~11 rainy days)
Lowest hotel prices
January

Seasons

San Francisco has a cool Mediterranean climate shaped by the Pacific: mild, wet winters, dry summers often blanketed in fog, and a warm spell in September and October, usually the sunniest months. Conditions vary between districts, with the western neighbourhoods foggier and the Mission sunnier.

December–February

Winter

Cool and wet with clear days between storms, green hills, Lunar New Year and some of the lowest hotel rates of the year.

March–May

Spring

Mild, drier days, wildflowers on the headlands and blossom in the parks, with fog starting to return by late May.

June–August

Summer

Peak crowds and prices but often cool, foggy and windy, especially near the ocean; the Mission and the East Bay are sunnier.

September–November

Autumn

Usually the warmest, clearest weather of the year in September and October, with Fleet Week and free festivals, before rain returns in November.

Month by month

Long-term averages (rounded). Crowds and prices are relative, 1 (lowest) to 5 (highest). Daylight is sunrise to sunset on the 15th.

Average weather, crowds and prices by month
MonthHighLowRainy daysSeaDaylightCrowdsPrices
January14°C8°C1112°C9.8 h2/52/5
February16°C9°C1012°C10.7 h2/53/5
March17°C9°C912°C11.8 h3/53/5
April18°C10°C512°C13.1 h3/53/5
May19°C11°C213°C14.2 h3/54/5
June21°C12°C114°C14.8 h4/54/5
July21°C13°C014°C14.5 h5/55/5
August22°C13°C015°C13.6 h5/55/5
September23°C14°C115°C12.4 h4/55/5
October22°C13°C315°C11.1 h4/54/5
November18°C10°C714°C10.1 h3/53/5
December14°C8°C1013°C9.6 h3/53/5

Yearly events

Recurring dates shift from year to year; confirm with the organiser before you book.

Events in San Francisco by month
MonthEvents
JanuaryLunar New Year celebrations begin (late January or February)
FebruaryChinese New Year Festival and Parade in Chinatown and around Union Square (usually February)
MarchSt Patrick's Day parade (around 17 March)
AprilNorthern California Cherry Blossom Festival in Japantown (usually April); San Francisco International Film Festival (usually April)
MayBay to Breakers — costumed footrace across the city (usually the third Sunday of May); Carnaval San Francisco in the Mission (usually Memorial Day weekend)
JuneSan Francisco Pride parade and celebration (usually the last weekend of June)
JulyFourth of July fireworks on the waterfront (4 July; often hidden by fog)
AugustOutside Lands music festival in Golden Gate Park (usually August)
SeptemberLarge conventions at Moscone Center can raise hotel rates sharply (often September and October)
OctoberFleet Week air shows and ship parades on the bay (usually early October); Hardly Strictly Bluegrass — free music festival in Golden Gate Park (usually early October)
NovemberDía de los Muertos procession in the Mission (2 November)
DecemberHoliday tree and ice rink at Union Square (usually mid-November to early January)

Cheapest and quietest times

Hotel prices are usually lowest in January, and the sights are quietest in January–February.

San Francisco on a budget.

What to pack

Packing for San Francisco by season
SeasonPack
WinterLayers, a warm sweater and a jacket for cool evenings; A packable rain jacket for showers; Comfortable walking shoes
SpringLight layers for the day and a light jacket for the evening; Comfortable walking shoes
SummerLight layers for the day and a light jacket for the evening; A packable rain jacket for showers; Comfortable walking shoes
AutumnLayers, a warm sweater and a jacket for cool evenings; A packable rain jacket for showers; Comfortable walking shoes

Questions travellers ask

+What is the best month to visit San Francisco?

The best time to visit San Francisco is September to October, when the summer fog usually clears and the city has its warmest, sunniest weather. April and May are also pleasant and quieter. Summer (June to August) is the busiest season but often cool, grey and windy, while winter brings rain, green hills and lower hotel prices.

+When are hotel prices lowest in San Francisco?

Usually in January. Cool and the wettest time of year, with crisp, clear days between storms; hotel rates are among the lowest of the year.

+What is the rainiest month in San Francisco?

January, with about 11 days of rain on average.

+How hot does San Francisco get?

The warmest month, September, averages highs of 23°C (73°F) and lows of 14°C (57°F).