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 | 30.7 | 31.8 | 33.1 | 33.4 | 32.1 | 30.7 | 30.9 | 30.8 | 29.5 | 29.2 | 29.7 | 30.2 |
°F | 87.3 | 89.2 | 91.6 | 92.1 | 89.8 | 87.2 | 87.6 | 87.4 | 85.1 | 84.5 | 85.5 | 86.4 |
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 | 4 | 5 | 8 | 41 | 190 | 295 | 223 | 234 | 361 | 217 | 40 | 5 |
inches | 0.2 | 0.2 | 0.3 | 1.6 | 7.5 | 11.6 | 8.8 | 9.2 | 14.2 | 8.5 | 1.6 | 0.2 |
Rainy days | 5 | 3 | 3 | 6 | 15 | 24 | 20 | 22 | 27 | 22 | 9 | 6 |
Average annual rainfall in San Francisco: 1548.767mm (609.8 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 | 9.1 | 9.6 | 9.9 | 9.7 | 8.6 | 7.7 | 8.2 | 7.8 | 6.7 | 7 | 7.8 | 8.8 |
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 | 16.6 | 17.1 | 18.3 | 19.5 | 20.2 | 19.7 | 19.7 | 19.6 | 19.5 | 19.2 | 18.2 | 17.5 |
Max °C | 31.1 | 32.2 | 33.5 | 33.7 | 32.4 | 31 | 31.2 | 31.1 | 29.8 | 29.4 | 30 | 30.6 |
Min °F | 61.8 | 62.7 | 64.9 | 67.1 | 68.4 | 67.4 | 67.4 | 67.2 | 67 | 66.6 | 64.8 | 63.4 |
Max °F | 74.8 | 76.3 | 78.6 | 79.9 | 79.3 | 77.5 | 77.7 | 77.5 | 76.3 | 75.7 | 75.4 | 75.2 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 27.8 | 27.8 | 28.4 | 29.2 | 29.5 | 29.6 | 29.6 | 29.7 | 29.5 | 29.2 | 28.9 | 28.3 |
°F | 82 | 82.1 | 83.1 | 84.6 | 85.2 | 85.2 | 85.2 | 85.5 | 85.1 | 84.6 | 83.9 | 82.9 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 16 | 16 | 16 | 15 | 13 | 12 | 13 | 12 | 11 | 12 | 13 | 15 |
mph | 10 | 10 | 10 | 9 | 8 | 7 | 8 | 8 | 7 | 7 | 8 | 9 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
64% | 61% | 60% | 62% | 71% | 79% | 76% | 78% | 83% | 82% | 75% | 67% |
Hottest month: | April | 33.4°C 92.1°F |
---|---|---|
Driest month: | January | 4mm 0.2ins |
Sunniest month: | February | 9.6hrs |
Coldest month: | January | 30.7°C 87.3°F |
Wettest month: | September | 361mm 14.2ins |
Warmest sea: | August | 29.7°C 85.5°F |