Slidell in December
6.9out of 10
Possible, with caveats
Mild: highs around 16°C. Frequent rain: about 9 rainy days.
16°CAvg high
10°CAvg low
9Rainy days (102 mm)
10:03 hDaylight
06:54Sunrise · 16:57 Sunset
Why this score
- Mild: highs around 16°C
- Frequent rain: about 9 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in December is fairly consistent from year to year (2.4 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
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 |
Frequently asked questions
How hot is Slidell in December?
Daytime highs average 16°C and nights about 10°C.
When is the best time to visit Slidell?
The best months are October, April, November, May.