Consider Mer Rouge, Louisiana climate data from Fizber.com. Not only you can receive current weather information, but also get an idea of general climate state of Mer Rouge, Louisiana. Fizber Climate watch gives you an opportunity to Consider current weather of the area. Average min temperature of Mer Rouge, Louisiana in January is n/a, average min temperature in July is n/a, while the average max temperature in January is n/a, average min temperature in July is n/a.