San Gabriel monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at San Gabriel
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 30.2 | 31.1 | 31.2 | 31.1 | 30.3 | 29.7 | 29.7 | 29.8 | 29.2 | 29.2 | 29.8 | 30.3 |
| °F | 86.3 | 87.9 | 88.2 | 88 | 86.5 | 85.4 | 85.5 | 85.6 | 84.5 | 84.5 | 85.6 | 86.6 |
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 | 18 | 21 | 61 | 151 | 394 | 592 | 448 | 472 | 605 | 587 | 178 | 49 |
| inches | 0.7 | 0.8 | 2.4 | 6 | 15.5 | 23.3 | 17.6 | 18.6 | 23.8 | 23.1 | 7 | 1.9 |
| Rainy days | 3 | 3 | 4 | 7 | 16 | 22 | 21 | 21 | 22 | 19 | 7 | 4 |
Average annual rainfall in San Gabriel: 3499mm (1377.6 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in San Gabriel
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 8.3 | 9.1 | 9.3 | 8.4 | 8.1 | 7.4 | 7.1 | 6.6 | 6.2 | 5.9 | 6.8 | 7.8 |
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 | 17.3 | 17.8 | 18.7 | 19.6 | 20.1 | 19.9 | 19.5 | 19.4 | 19.4 | 19.2 | 18.8 | 17.8 |
| Max °C | 30.5 | 31.4 | 31.6 | 31.4 | 30.5 | 29.9 | 30 | 30.1 | 29.4 | 29.4 | 30.1 | 30.7 |
| Min °F | 63.1 | 64 | 65.6 | 67.3 | 68.2 | 67.8 | 67 | 66.8 | 66.9 | 66.6 | 65.8 | 64 |
| Max °F | 75 | 76.3 | 77.2 | 77.9 | 77.5 | 76.8 | 76.5 | 76.5 | 75.9 | 75.7 | 75.9 | 75.6 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 28.1 | 28 | 28.6 | 29.6 | 30.1 | 29.8 | 29.7 | 29.9 | 29.5 | 29.2 | 29.1 | 28.7 |
| °F | 82.5 | 82.5 | 83.4 | 85.3 | 86.1 | 85.6 | 85.5 | 85.7 | 85.1 | 84.5 | 84.4 | 83.7 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 9 | 10 | 10 | 9 | 9 | 8 | 9 | 8 | 8 | 9 | 10 | 10 |
| mph | 6 | 7 | 6 | 5 | 6 | 5 | 5 | 5 | 5 | 6 | 7 | 6 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 73% | 69% | 69% | 76% | 79% | 83% | 83% | 85% | 86% | 86% | 81% | 76% |
Other monthly averages
San Gabriel weather stats
| Hottest month: | April | 31.1°C 88°F |
|---|---|---|
| Driest month: | January | 18mm 0.7ins |
| Sunniest month: | March | 9.3hrs |
| Coldest month: | January | 30.2°C 86.4°F |
| Wettest month: | September | 605mm 23.8ins |
| Warmest sea: | May | 30.1°C 86.2°F |
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