The bar chart below shows the average monthly peak daytime temperatures at San Juan
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 26.7 | 26.9 | 27.5 | 28.3 | 29.3 | 30 | 29.9 | 30.2 | 30.2 | 29.9 | 28.5 | 27.3 |
°F | 80.1 | 80.4 | 81.5 | 83 | 84.7 | 86 | 85.8 | 86.3 | 86.4 | 85.8 | 83.4 | 81.2 |
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.
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 | 116 | 82 | 79 | 121 | 182 | 152 | 180 | 195 | 188 | 171 | 178 | 151 |
inches | 4.5 | 3.2 | 3.1 | 4.8 | 7.1 | 6 | 7.1 | 7.7 | 7.4 | 6.7 | 7 | 5.9 |
Rainy days | 20 | 15 | 15 | 14 | 16 | 17 | 19 | 20 | 18 | 18 | 19 | 21 |
Average annual rainfall in San Juan: 1746.534mm (687.6 inches)
The bar chart below shows the average daily sunshine hours in San Juan
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 8.3 | 8.8 | 9.6 | 9.4 | 8.7 | 9.1 | 9.5 | 9.2 | 8.3 | 7.8 | 7.3 | 7.6 |
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 | 20.1 | 19.8 | 20.6 | 21.3 | 22.4 | 23.3 | 23.6 | 23.7 | 23.4 | 23 | 22.1 | 21.1 |
Max °C | 26.9 | 27.1 | 27.7 | 28.5 | 29.5 | 30.2 | 30.1 | 30.4 | 30.4 | 30.1 | 28.7 | 27.5 |
Min °F | 68.2 | 67.6 | 69 | 70.3 | 72.2 | 73.9 | 74.4 | 74.6 | 74.1 | 73.3 | 71.8 | 70 |
Max °F | 74.3 | 74.1 | 75.4 | 76.8 | 78.6 | 80.1 | 80.2 | 80.6 | 80.4 | 79.7 | 77.7 | 75.7 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 26.6 | 26.2 | 26.2 | 26.7 | 27.5 | 28.1 | 28.4 | 28.7 | 29 | 28.9 | 28.3 | 27.3 |
°F | 79.9 | 79.2 | 79.2 | 80.1 | 81.4 | 82.6 | 83 | 83.7 | 84.2 | 84 | 82.9 | 81.2 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 16 | 17 | 16 | 16 | 15 | 16 | 17 | 16 | 14 | 13 | 15 | 16 |
mph | 10 | 10 | 10 | 10 | 9 | 10 | 11 | 10 | 9 | 8 | 9 | 10 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
75% | 73% | 72% | 72% | 76% | 76% | 76% | 77% | 77% | 77% | 77% | 75% |
Hottest month: | August | 30.2°C 86.4°F |
---|---|---|
Driest month: | March | 79mm 3.1ins |
Sunniest month: | March | 9.6hrs |
Coldest month: | February | 26.9°C 80.4°F |
Wettest month: | August | 195mm 7.7ins |
Warmest sea: | September | 29°C 84.2°F |