The bar chart below shows the average monthly peak daytime temperatures at Grand Isle
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 16.3 | 17.7 | 21.2 | 25.1 | 28.5 | 31.2 | 32.1 | 31.9 | 30.2 | 26.2 | 21.7 | 18.2 |
°F | 61.4 | 63.9 | 70.2 | 77.1 | 83.3 | 88.1 | 89.7 | 89.5 | 86.3 | 79.1 | 71.1 | 64.7 |
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.
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 | 127 | 123 | 113 | 120 | 124 | 136 | 168 | 169 | 165 | 82 | 97 | 114 |
inches | 5 | 4.8 | 4.5 | 4.7 | 4.9 | 5.3 | 6.6 | 6.7 | 6.5 | 3.2 | 3.8 | 4.5 |
Rainy days | 10 | 8 | 8 | 6 | 7 | 10 | 14 | 13 | 10 | 5 | 7 | 9 |
Average annual rainfall in Grand Isle: 1478.117mm (581.9 inches)
The bar chart below shows the average daily sunshine hours in Grand Isle
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 6.2 | 7.1 | 8.2 | 9.7 | 10 | 9.4 | 8.8 | 8.6 | 8.1 | 8.3 | 7 | 6.4 |
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 | 6.9 | 8.4 | 12 | 16.1 | 19.6 | 22.6 | 23.5 | 23.4 | 21.8 | 16 | 12 | 8.6 |
Max °C | 16.6 | 17.9 | 21.5 | 25.3 | 28.7 | 31.4 | 32.3 | 32.1 | 30.4 | 26.4 | 22 | 18.4 |
Min °F | 44.4 | 47.1 | 53.6 | 60.9 | 67.3 | 72.6 | 74.3 | 74.2 | 71.2 | 60.9 | 53.6 | 47.5 |
Max °F | 53.1 | 55.7 | 62.1 | 69.2 | 75.5 | 80.6 | 82.2 | 82 | 78.9 | 70.2 | 62.6 | 56.3 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 18.4 | 18 | 19.1 | 21.6 | 25 | 28.2 | 29.6 | 29.7 | 28.6 | 25.5 | 22.4 | 20.1 |
°F | 65.1 | 64.3 | 66.4 | 70.8 | 77 | 82.8 | 85.2 | 85.5 | 83.4 | 78 | 72.3 | 68.2 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 16 | 16 | 17 | 16 | 14 | 12 | 10 | 10 | 12 | 12 | 14 | 15 |
mph | 10 | 10 | 10 | 10 | 9 | 7 | 6 | 6 | 7 | 8 | 9 | 9 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
76% | 73% | 73% | 73% | 74% | 76% | 79% | 79% | 78% | 75% | 77% | 77% |
Hottest month: | July | 32.1°C 89.8°F |
---|---|---|
Driest month: | October | 82mm 3.2ins |
Sunniest month: | April | 9.7hrs |
Coldest month: | January | 16.3°C 61.3°F |
Wettest month: | August | 169mm 6.7ins |
Warmest sea: | August | 29.7°C 85.5°F |