The bar chart below shows the average monthly peak daytime temperatures at San Francisco
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 26.7 | 28.2 | 30.1 | 32 | 32.4 | 31.9 | 30.7 | 31.2 | 30.9 | 29.9 | 28 | 27 |
°F | 80.1 | 82.7 | 86.1 | 89.6 | 90.4 | 89.4 | 87.3 | 88.1 | 87.6 | 85.9 | 82.5 | 80.7 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
The graph below shows the average rainfall and number of rainy days per month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
mm | 88 | 68 | 53 | 48 | 154 | 246 | 258 | 247 | 286 | 253 | 150 | 111 |
inches | 3.5 | 2.7 | 2.1 | 1.9 | 6.1 | 9.7 | 10.2 | 9.7 | 11.3 | 10 | 5.9 | 4.4 |
Rainy days | 11 | 8 | 6 | 6 | 9 | 18 | 21 | 19 | 18 | 16 | 13 | 13 |
Average annual rainfall in San Francisco: 1888.933mm (743.7 inches)
The bar chart below shows the average daily sunshine hours in San Francisco
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 7.1 | 7.6 | 8.1 | 8.3 | 8 | 7 | 7.2 | 7.5 | 6.3 | 6.5 | 6.5 | 6.4 |
The graph below shows the daily range of temperatures for each month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Min °C | 17.3 | 17.4 | 18.7 | 20.3 | 21.5 | 22.1 | 21.5 | 21.2 | 21.3 | 20.9 | 19.2 | 18.2 |
Max °C | 27 | 28.5 | 30.4 | 32.3 | 32.7 | 32.1 | 31 | 31.4 | 31.1 | 30.2 | 28.3 | 27.3 |
Min °F | 63.1 | 63.2 | 65.6 | 68.5 | 70.7 | 71.8 | 70.6 | 70.2 | 70.3 | 69.5 | 66.5 | 64.7 |
Max °F | 71.8 | 73.2 | 76.1 | 79.3 | 80.8 | 80.8 | 79.2 | 79.3 | 79.2 | 77.9 | 74.7 | 72.9 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 27 | 27 | 27.4 | 28.2 | 28.9 | 29.3 | 29.2 | 29.4 | 29.6 | 29.4 | 28.6 | 27.7 |
°F | 80.7 | 80.7 | 81.3 | 82.8 | 83.9 | 84.7 | 84.5 | 85 | 85.3 | 84.9 | 83.6 | 81.9 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 11 | 13 | 13 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 11 |
mph | 7 | 8 | 8 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
71% | 71% | 66% | 68% | 71% | 72% | 74% | 75% | 77% | 76% | 78% | 76% |
Hottest month: | May | 32.4°C 90.3°F |
---|---|---|
Driest month: | April | 48mm 1.9ins |
Sunniest month: | March | 8.1hrs |
Coldest month: | January | 26.7°C 80.1°F |
Wettest month: | September | 286mm 11.3ins |
Warmest sea: | September | 29.6°C 85.3°F |