San monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at San
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 32.2 | 35.6 | 38.1 | 39.5 | 39 | 35.9 | 32.8 | 31.3 | 32.2 | 35.3 | 35.2 | 32.3 |
| °F | 90 | 96 | 100.5 | 103 | 102.2 | 96.7 | 91.1 | 88.3 | 90 | 95.5 | 95.4 | 90.1 |
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.
Average rainfall & rainy days
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 | 1 | 0 | 3 | 13 | 40 | 89 | 166 | 211 | 126 | 28 | 1 | 1 |
| inches | 0 | 0 | 0.1 | 0.5 | 1.6 | 3.5 | 6.5 | 8.3 | 5 | 1.1 | 0 | 0 |
| Rainy days | 0 | 0 | 1 | 0 | 6 | 9 | 13 | 16 | 11 | 4 | 0 | 0 |
Average annual rainfall in San: 686.233mm (270.2 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in San
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 9.4 | 9.7 | 9.1 | 8.7 | 9.2 | 8.9 | 8.3 | 8 | 8.6 | 9.3 | 9.9 | 9.3 |
Day / night temperatures
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 | 15.2 | 18 | 21.8 | 25.4 | 26.5 | 24.8 | 23.2 | 22.5 | 22.6 | 22.6 | 19.2 | 16 |
| Max °C | 32.7 | 36 | 38.5 | 39.8 | 39.3 | 36.2 | 33.1 | 31.5 | 32.5 | 35.6 | 35.6 | 32.7 |
| Min °F | 59.3 | 64.4 | 71.2 | 77.7 | 79.7 | 76.6 | 73.7 | 72.5 | 72.6 | 72.7 | 66.6 | 60.7 |
| Max °F | 75 | 80.6 | 86.2 | 90.7 | 91.2 | 86.9 | 82.6 | 80.6 | 81.5 | 84.4 | 81.3 | 75.7 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 25 | 24.9 | 25.1 | 25.5 | 26 | 25.8 | 25.2 | 25 | 25.3 | 25.9 | 26.2 | 25.7 |
| °F | 77 | 76.8 | 77.2 | 78 | 78.9 | 78.5 | 77.4 | 77 | 77.6 | 78.6 | 79.1 | 78.2 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 6 | 7 | 7 | 7 | 7 | 8 | 6 | 5 | 4 | 3 | 4 | 5 |
| mph | 4 | 4 | 4 | 4 | 4 | 5 | 4 | 3 | 2 | 2 | 3 | 3 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
Relative humidity
The graph below shows the average relative humidity.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 35% | 28% | 26% | 33% | 47% | 60% | 71% | 77% | 75% | 60% | 45% | 40% |
Other monthly averages
San weather stats
| Hottest month: | May | 39°C 102.2°F |
|---|---|---|
| Driest month: | February | 0mm 0ins |
| Sunniest month: | November | 9.9hrs |
| Coldest month: | January | 32.2°C 90°F |
| Wettest month: | August | 211mm 8.3ins |
| Warmest sea: | November | 26.2°C 79.2°F |
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