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San Francisco weather

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EuropeanECMWF
15°
Light drizzle
Feels 15° · Wind 9 km/h · Humidity 92%
AmericanNOAA GFS
14°
Overcast
Feels 13° · Wind 13 km/h · Humidity 92%
GermanDWD ICON
16°
Light showers
Feels 16° · Wind 7 km/h · Humidity 85%

Latest for San Francisco: European (ECMWF): 15° Light drizzle · American (NOAA GFS): 14° Overcast · German (DWD ICON): 16° Light showers.

The weather map: all three models at once

European, American, German side by side around San Francisco and nearby towns.Live rain radar →
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Hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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10-day forecast, out to 14 days

where the models agree, and where they split

Heading to San Francisco? San Francisco, USA, sits at 37.8°N in a temperate climate zone. Before you lock in outdoor plans, compare how the three global models - European (ECMWF), American (GFS) and German (ICON) - forecast San Francisco right now. Where they agree you can trust it; the days they split are exactly when a single weather app is least reliable. For a city break, the rain hours below tell you which days to plan indoors.

Best time to visit San Francisco

The most comfortable time to visit San Francisco is usually February, March, April and May, when daytime highs sit in the pleasant 16-26°C range and the heaviest December rain is behind you.

San Francisco weather by month

what to expect in San Francisco through the year, 1991-2020 normals, San Francisco Intl AP (WMO)

Here is San Francisco's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to San Francisco by season.

Jan
14°
7°
Cool
Feb
16°
8°
Mild
Mar
17°
9°
Mild
Apr
19°
10°
Mild
May
20°
11°
Mild
Jun
22°
12°
Warm
Jul
23°
13°
Warm
Aug
23°
14°
Warm
Sep
24°
13°
Warm
Oct
22°
12°
Warm
Nov
18°
9°
Mild
Dec
14°
7°
Cool
Wettest

San Francisco compared with Sydney

30-year averages: daytime highs month by month, rain and sunlight

Cooler through the year

−4°C

average daytime high: San Francisco 19°C, Sydney 23°C

Rain over a year

−57%

San Francisco 499 mm, Sydney 1,148 mm

Sunlight vs a clear sky

79% vs 77%

solar energy reaching the ground as a share of a cloudless day, averaged over the year (not sunshine hours)

San FranciscoSydneyaverage daytime high, °C, 1991-2020
January, Sydney: 27°CJanuary, San Francisco: 14°C (−13°C)February, Sydney: 28°CFebruary, San Francisco: 16°C (−12°C)March, Sydney: 26°CMarch, San Francisco: 17°C (−9°C)April, Sydney: 24°CApril, San Francisco: 19°C (−5°C)May, Sydney: 22°CMay, San Francisco: 20°C (−2°C)June, Sydney: 18°CJune, San Francisco: 22°C (+4°C)July, Sydney: 18°CJuly, San Francisco: 23°C (+5°C)August, Sydney: 20°CAugust, San Francisco: 23°C (+3°C)September, Sydney: 22°CSeptember, San Francisco: 24°C (+2°C)October, Sydney: 24°COctober, San Francisco: 22°C (−2°C)November, Sydney: 25°CNovember, San Francisco: 18°C (−7°C)December, Sydney: 27°CDecember, San Francisco: 14°C (−13°C)

On 30-year averages San Francisco runs 4°C cooler than Sydney, with every month between −13°C and +5°C. Over a year it gets 57% less rain than Sydney.

Month by month in numbers
MonthSan FranciscoSydneyDifferenceSunlight, San FranciscoSunlight, Sydney
January14°C27°C−13°C76%75%
February16°C28°C−12°C77%73%
March17°C26°C−9°C79%75%
April19°C24°C−5°C82%77%
May20°C22°C−2°C81%79%
June22°C18°C+4°C84%74%
July23°C18°C+5°C78%80%
August23°C20°C+3°C77%82%
September24°C22°C+2°C82%82%
October22°C24°C−2°C83%77%
November18°C25°C−7°C81%74%
December14°C27°C−13°C74%74%

Daytime highs and lows on this page are 1991-2020 averages. San Francisco: station normals from San Francisco Intl AP (WMO), rain included. Sydney: station normals from Sydney Observatory Hill (WMO), rain included. Sunlight vs a clear sky is NASA POWER's long-term average of the solar energy reaching the ground as a share of a cloudless day; it compares cloudiness and is not a count of sunshine hours. Sydney stands in for Australia here; other cities have their own climate tables.

Common questions

When is the best time to visit San Francisco?
The most comfortable time to visit San Francisco is usually February, March, April and May, when daytime highs sit in the pleasant 16-26°C range and the heaviest December rain is behind you.
Will it rain in San Francisco during my trip?
Rain is where forecasts disagree most. Instead of trusting one app, the comparison above lines up the European, American and German models for San Francisco - check your dates and look for the days they agree; those are the ones you can plan around.
Which forecast is most accurate for San Francisco?
For destinations abroad we compare three open global models (ECMWF, GFS and ICON) and show you where they disagree, so you can judge the confidence yourself.
How much warmer is San Francisco than Sydney?
On 30-year averages (1991-2020) the daytime high in San Francisco is about 4°C cooler than in Sydney (19°C against 23°C), with the monthly gap between -13°C and 5°C.

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