La Mesa monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at La Mesa
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 16.2 | 16.1 | 16 | 15.4 | 15 | 14.4 | 14 | 14.9 | 14.7 | 15.1 | 15.3 | 15.6 |
| °F | 61.1 | 61 | 60.8 | 59.8 | 59 | 57.9 | 57.2 | 58.9 | 58.4 | 59.1 | 59.5 | 60 |
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 | 26 | 37 | 64 | 116 | 101 | 82 | 64 | 60 | 73 | 131 | 111 | 47 |
| inches | 1 | 1.5 | 2.5 | 4.6 | 4 | 3.2 | 2.5 | 2.4 | 2.9 | 5.2 | 4.4 | 1.9 |
| Rainy days | 8 | 11 | 15 | 19 | 20 | 19 | 18 | 17 | 17 | 19 | 17 | 11 |
Average annual rainfall in La Mesa: 843.533mm (332.1 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in La Mesa
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 7.8 | 6.5 | 5.4 | 3.9 | 3.9 | 3.6 | 4.4 | 4.5 | 4.6 | 4.4 | 5.4 | 7.4 |
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 | 4 | 4.2 | 5.2 | 6 | 6 | 5.8 | 5.4 | 5.7 | 4.9 | 5.3 | 5.3 | 4.4 |
| Max °C | 16.5 | 16.4 | 16.3 | 15.7 | 15.2 | 14.6 | 14.2 | 15.2 | 14.9 | 15.3 | 15.6 | 15.9 |
| Min °F | 39.1 | 39.6 | 41.3 | 42.7 | 42.8 | 42.4 | 41.7 | 42.2 | 40.8 | 41.5 | 41.5 | 39.8 |
| Max °F | 50.4 | 50.5 | 51.3 | 51.4 | 51.1 | 50.4 | 49.6 | 50.7 | 49.8 | 50.5 | 50.7 | 50.2 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 27.1 | 26.7 | 26.6 | 26.9 | 27.6 | 27.7 | 27.6 | 27.5 | 27.5 | 27.5 | 27.4 | 27.3 |
| °F | 80.8 | 80.1 | 79.9 | 80.5 | 81.6 | 81.9 | 81.7 | 81.6 | 81.5 | 81.5 | 81.4 | 81.2 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 12 | 12 | 12 | 11 | 10 | 12 | 13 | 12 | 11 | 10 | 10 | 11 |
| mph | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 7 | 6 | 6 | 7 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 83% | 83% | 83% | 84% | 86% | 87% | 86% | 85% | 85% | 85% | 86% | 84% |
Other monthly averages
La Mesa weather stats
| Hottest month: | April | 15.4°C 59.7°F |
|---|---|---|
| Driest month: | January | 26mm 1ins |
| Sunniest month: | January | 7.8hrs |
| Coldest month: | July | 14°C 57.2°F |
| Wettest month: | October | 131mm 5.2ins |
| Warmest sea: | June | 27.7°C 81.9°F |
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