Climate almanac
Port Allen
Louisiana, United States · 30.45°, -91.21°
What is the climate like in Port Allen?
The best time to visit Port Allen is typically September – November, with trip comfort peaking in October (7.2/10). Port Allen is warmest in August, when daily highs average 92°F (33°C), and coolest in January, when lows fall to about 44°F (7°C). The wettest month is typically August and the driest is October; the year sees roughly 59 in (1502 mm) of precipitation.
- Best time to visitSeptember – November — comfort peaks in October (7.2/10)
- Warmest monthAugust — average high 92°F (33°C)
- Coolest monthJanuary — average low 44°F (7°C)
- Wettest monthAugust (7.3 in (185 mm))
- Driest monthOctober (3.0 in (76 mm))
- Annual precipitation59 in (1502 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromBaton Rouge Metro AP, 11 km away (1930-2026)