Slidell Climate: Weather by Month and Best Time to Visit
Best months for Slidell: October, April, November, May.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 15°C | 9°C | 115 mm | 10 | – | – | 6.5 |
| February | 17°C | 11°C | 112 mm | 9 | – | – | 7.0 |
| March | 20°C | 14°C | 122 mm | 9 | – | – | 7.4 |
| April | 23°C | 17°C | 97 mm | 9 | – | – | 7.8 |
| May | 27°C | 22°C | 88 mm | 10 | – | – | 7.7 |
| June | 30°C | 25°C | 123 mm | 15 | – | – | 6.7 |
| July | 31°C | 26°C | 129 mm | 18 | – | – | 6.0 |
| August | 30°C | 25°C | 149 mm | 18 | – | – | 6.0 |
| September | 29°C | 23°C | 119 mm | 13 | – | – | 7.2 |
| October | 25°C | 18°C | 84 mm | 8 | – | – | 8.0 |
| November | 20°C | 13°C | 83 mm | 7 | – | – | 7.8 |
| December | 16°C | 10°C | 102 mm | 9 | – | – | 6.9 |