San Salvador monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at San Salvador
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 28.9 | 29.3 | 30.6 | 32 | 32.4 | 31.4 | 30.7 | 30.7 | 30.7 | 30.7 | 30.1 | 29.4 |
| °F | 84.1 | 84.7 | 87 | 89.6 | 90.3 | 88.5 | 87.2 | 87.3 | 87.3 | 87.3 | 86.2 | 85 |
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 | 143 | 76 | 61 | 75 | 170 | 253 | 286 | 255 | 251 | 326 | 280 | 223 |
| inches | 5.6 | 3 | 2.4 | 3 | 6.7 | 10 | 11.3 | 10 | 9.9 | 12.8 | 11 | 8.8 |
| Rainy days | 11 | 9 | 6 | 5 | 9 | 17 | 18 | 18 | 18 | 18 | 16 | 14 |
Average annual rainfall in San Salvador: 2531.6mm (996.7 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in San Salvador
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 6.3 | 6.9 | 8.1 | 8.9 | 8 | 6.6 | 6.1 | 6.1 | 6 | 6.4 | 6.2 | 6 |
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 | 22.5 | 22.4 | 22.9 | 24 | 24.4 | 23.8 | 23.6 | 23.7 | 23.5 | 23.5 | 23.5 | 23 |
| Max °C | 29.1 | 29.5 | 30.8 | 32.2 | 32.6 | 31.6 | 30.9 | 30.9 | 30.9 | 30.9 | 30.3 | 29.6 |
| Min °F | 72.5 | 72.2 | 73.1 | 75.2 | 75.9 | 74.8 | 74.4 | 74.7 | 74.3 | 74.3 | 74.3 | 73.4 |
| Max °F | 78.4 | 78.6 | 80.2 | 82.6 | 83.3 | 81.9 | 81 | 81.1 | 81 | 81 | 80.4 | 79.3 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 26.9 | 26.7 | 27.3 | 28.5 | 29.5 | 29.8 | 29.4 | 29.2 | 29.2 | 29.2 | 28.8 | 27.8 |
| °F | 80.4 | 80.1 | 81.1 | 83.3 | 85.2 | 85.6 | 84.9 | 84.5 | 84.6 | 84.6 | 83.8 | 82 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 15 | 15 | 13 | 12 | 9 | 9 | 9 | 10 | 9 | 10 | 12 | 14 |
| mph | 9 | 9 | 8 | 7 | 6 | 5 | 6 | 6 | 6 | 6 | 7 | 9 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 81% | 80% | 77% | 75% | 77% | 81% | 83% | 82% | 83% | 83% | 83% | 82% |
Other monthly averages
San Salvador weather stats
| Hottest month: | May | 32.4°C 90.3°F |
|---|---|---|
| Driest month: | March | 61mm 2.4ins |
| Sunniest month: | April | 8.9hrs |
| Coldest month: | January | 28.9°C 84°F |
| Wettest month: | October | 326mm 12.8ins |
| Warmest sea: | June | 29.8°C 85.6°F |
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