San Juan Atitán monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at San Juan Atitán
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 18 | 19.2 | 20.6 | 22.4 | 22.9 | 21.2 | 20.6 | 20.8 | 20.2 | 19.7 | 19.4 | 18.7 |
| °F | 64.5 | 66.5 | 69.1 | 72.4 | 73.2 | 70.2 | 69.2 | 69.5 | 68.4 | 67.4 | 67 | 65.7 |
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 | 15 | 16 | 30 | 83 | 177 | 138 | 132 | 158 | 87 | 36 | 19 |
| inches | 0.7 | 0.6 | 0.6 | 1.2 | 3.3 | 6.9 | 5.4 | 5.2 | 6.2 | 3.4 | 1.4 | 0.7 |
| Rainy days | 5 | 4 | 4 | 7 | 14 | 23 | 21 | 20 | 23 | 17 | 9 | 5 |
Average annual rainfall in San Juan Atitán: 830.734mm (327.1 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in San Juan Atitán
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 8.5 | 7.9 | 8.7 | 8.8 | 7.4 | 6.6 | 6.7 | 6.5 | 5.5 | 6.4 | 6.4 | 6.1 |
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 | 3.4 | 4.1 | 5.6 | 8 | 10 | 10.9 | 10.1 | 9.7 | 9.9 | 8.9 | 7.1 | 4.8 |
| Max °C | 18.4 | 19.6 | 21 | 22.8 | 23.2 | 21.5 | 20.9 | 21.1 | 20.5 | 20 | 19.8 | 19.1 |
| Min °F | 38.1 | 39.3 | 42.1 | 46.4 | 50 | 51.6 | 50.2 | 49.5 | 49.8 | 47.9 | 44.7 | 40.6 |
| Max °F | 51.6 | 53.2 | 55.9 | 59.7 | 61.9 | 61.2 | 59.9 | 59.7 | 59.4 | 57.9 | 56.1 | 53.4 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 27.2 | 27.2 | 27.8 | 28.9 | 29.6 | 29.6 | 29.6 | 29.7 | 29.5 | 29 | 28.6 | 28 |
| °F | 81 | 81 | 82 | 84 | 85.2 | 85.3 | 85.3 | 85.5 | 85.1 | 84.3 | 83.5 | 82.4 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 11 | 12 | 12 | 10 | 10 | 9 | 10 | 9 | 9 | 10 | 12 | 11 |
| mph | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 69% | 73% | 68% | 66% | 76% | 80% | 81% | 82% | 84% | 80% | 81% | 84% |
Other monthly averages
San Juan Atitán weather stats
| Hottest month: | May | 22.9°C 73.2°F |
|---|---|---|
| Driest month: | February | 15mm 0.6ins |
| Sunniest month: | January | 8.5hrs |
| Coldest month: | January | 18°C 64.4°F |
| Wettest month: | June | 177mm 7ins |
| Warmest sea: | August | 29.7°C 85.5°F |
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