San Francisco, California, United States Climate

Weather: 10.42°C/50.76°F, Wind SW at 5.81 km/h, 88% Humidity, 0% Chance of rain

United States
(Photo by Oliver Plattner on Unsplash)
Contents

San Francisco Climate Summary

Located at an elevation of None meters (0 feet) above sea level, San Francisco has a Mediterranean, warm summer climate (Classification: Csb). The district’s yearly temperature is 16.7ºC (62.06ºF) and it is 4.06% higher than United States’s averages. San Francisco typically receives about 8.8 millimeters (0.35 inches) of precipitation and has 13.81 rainy days (3.78% of the time) annually.

CountryUnited States
CityCalifornia
Longitude-122.4194155
Latitude37.7749295
Attitude/ElevationNonem (0ft)
Local timeFriday 20:24
Annual high temperature19.31ºC (66.76ºF)
Annual low temperature12.66ºC (54.79ºF)
Average annual precip.8.8mm (0.35in)
Warmest monthSeptember (23.94ºC / 75.09ºF)
Coldest MonthFebruary (9.34ºC / 48.81ºF)
Wettest MonthJanuary (25.4mm / 1.0in)
Driest MonthJune (0.3mm / 0.01in)
Number of days with rainfall (≥ 1.0 mm)13.81 days (3.78%)
Days with no rain351.19 days (96.22%)
Humidity69.47%

Climate San Francisco: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)22.0(71.6)25.0(77.0)23.0(73.4)28.0(82.4)27.0(80.6)34.0(93.2)29.0(84.2)31.0(87.8)32.0(89.6)31.0(87.8)28.0(82.4)20.0(68.0)34.0(93.2)
Average high °C (°F)14.75(58.55)15.33(59.59)15.52(59.94)18.13(64.63)18.87(65.97)22.41(72.34)22.82(73.08)23.7(74.66)23.94(75.09)23.11(73.6)18.57(65.43)14.57(58.23)19.31(66.76)
Daily mean °C (°F)12.72(54.9)12.76(54.97)13.13(55.63)15.66(60.19)16.53(61.75)19.7(67.46)19.91(67.84)20.76(69.37)20.81(69.46)19.83(67.69)15.9(60.62)12.66(54.79)16.7(62.06)
Average low °C (°F)9.9(49.82)9.34(48.81)9.73(49.51)11.53(52.75)12.33(54.19)14.37(57.87)14.76(58.57)16.05(60.89)16.12(61.02)15.47(59.85)12.27(54.09)10.06(50.11)12.66(54.79)
Record low °C (°F)4.0(39.2)4.0(39.2)6.0(42.8)7.0(44.6)10.0(50.0)11.0(51.8)12.0(53.6)13.0(55.4)12.0(53.6)10.0(50.0)6.0(42.8)7.0(44.6)4.0(39.2)
Average precipitation mm (inches)25.4(1.0)20.75(0.82)20.08(0.79)3.81(0.15)7.09(0.28)0.3(0.01)1.78(0.07)1.26(0.05)0.54(0.02)1.26(0.05)8.2(0.32)15.18(0.6)8.8(0.35)
Average precipitation days (≥ 1.0 mm)2.451.643.180.730.820.00.270.180.090.181.273.01.15
Average relative humidity (%)75.1865.0570.9473.0774.0868.1972.8472.1969.7859.0660.7972.5169.47
Mean monthly sunshine hours8.849.949.7610.6912.314.2212.9311.4511.4810.968.97.2910.73

Climate Graph

The chart below shows the mean monthly temperature and precipitation of San Francisco in recent years.

San Francisco

San Francisco Temperature by Month

September
20.81°C | 69.46°F
August
20.76°C | 69.37°F
July
19.91°C | 67.84°F
October
19.83°C | 67.69°F
June
19.7°C | 67.46°F
May
16.53°C | 61.75°F
November
15.9°C | 60.62°F
April
15.66°C | 60.19°F
March
13.13°C | 55.63°F
February
12.76°C | 54.97°F
January
12.72°C | 54.9°F
December
12.66°C | 54.79°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature25.0°C (77.0°F)17.46°C (63.43°F)10.0°C (50.0°F)
Avg Temperature21.0°C (69.8°F)14.18°C (57.52°F)8.0°C (46.4°F)
Min Temperature16.0°C (60.8°F)9.71°C (49.48°F)4.0°C (39.2°F)
Dew PointMaxAverageMin
Dew Point13.0°C (55.4°F)5.39°C (41.7°F)-3.0°C (26.6°F)
PrecipitationMaxAverageMinSum
Precipitation6.8mm | 0.27in0.29mm | 0.01in0.0mm | 0in8.2mm | 0.32in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind23.0kmh | 14.29mph9.29kmh | 5.77mph3.0kmh | 1.86mph
Gust Wind30.0kmh | 18.64mph12.61kmh | 7.84mph4.0kmh | 2.49mph
Sea Level PressureMaxAverageMin
Sea Level Pressure6.8mb0.29mb0.0mb
San Francisco

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
February° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2018-02-0117 | 62.69 | 48.2624 | 2.4930.09 | 10190.0 | 0.0
2018-02-0219 | 66.212 | 53.6674 | 2.4930.12 | 10200.0 | 0.0
2018-02-0320 | 68.012 | 53.6635 | 3.1130.12 | 10200.0 | 0.0
2018-02-0419 | 66.212 | 53.6664 | 2.4930.09 | 10190.0 | 0.0
2018-02-0519 | 66.213 | 55.4684 | 2.4930.03 | 10170.0 | 0.0
2018-02-0619 | 66.28 | 46.4535 | 3.1130.06 | 10180.0 | 0.0
2018-02-0719 | 66.210 | 50.0576 | 3.7330.21 | 10230.0 | 0.0
2018-02-0821 | 69.812 | 53.6623 | 1.8630.18 | 10220.0 | 0.0
2018-02-0920 | 68.012 | 53.6625 | 3.1130.06 | 10180.0 | 0.0
2018-02-1016 | 60.85 | 41.05311 | 6.8429.97 | 10150.0 | 0.0
2018-02-1112 | 53.63 | 37.45513 | 8.0829.91 | 10130.0 | 0.0
2018-02-1212 | 53.63 | 37.46013 | 8.0829.91 | 10130.0 | 0.0
2018-02-1315 | 59.01 | 33.8449 | 5.5930.12 | 10200.0 | 0.0
2018-02-1413 | 55.44 | 39.2589 | 5.5930.18 | 10220.0 | 0.0
2018-02-1514 | 57.24 | 39.2568 | 4.9730.24 | 10240.0 | 0.0
2018-02-1616 | 60.85 | 41.0534 | 2.4930.24 | 10240.0 | 0.0
2018-02-1717 | 62.68 | 46.4625 | 3.1130.12 | 10200.0 | 0.0
2018-02-1811 | 51.85 | 41.06723 | 14.2930.0 | 10160.0 | 0.0
2018-02-198 | 46.4-2 | 28.45118 | 11.1830.03 | 10170.0 | 0.0
2018-02-209 | 48.2-1 | 30.2538 | 4.9730.21 | 10230.0 | 0.0
2018-02-2110 | 50.02 | 35.6637 | 4.3530.21 | 10230.7 | 0.03
2018-02-229 | 48.22 | 35.66521 | 13.0530.24 | 10240.3 | 0.01
2018-02-2310 | 50.0-2 | 28.45112 | 7.4630.36 | 10280.0 | 0.0
2018-02-2410 | 50.03 | 37.46612 | 7.4630.39 | 10290.0 | 0.0
2018-02-2511 | 51.84 | 39.2699 | 5.5930.3 | 10260.0 | 0.0
2018-02-2610 | 50.04 | 39.26716 | 9.9430.03 | 10176.8 | 0.27
2018-02-2710 | 50.0-3 | 26.64511 | 6.8430.03 | 10170.2 | 0.01
2018-02-2811 | 51.86 | 42.87511 | 6.8430.15 | 10210.2 | 0.01

San Francisco 3 Year Historical Weather Data

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