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Monthly climate in Mer Rouge, Louisiana, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Mer Rouge features a humid subtropical climate (Cfa). Temperatures typically range between 9 °C (48 °F) and 28 °C (83 °F) through the year, but rarely can drop to -16 °C (3 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 1519 mm (59.8 inches) and receives 132 rainy days on the 1 mm (0.04 inches) threshold annually. Mer Rouge enjoys an average of 3082 hours of sunshine throughout the year, and daylight varies from 10 hours 1 minutes to 14 hours 15 minutes per day.

Monthly average temperatures in Mer Rouge, Louisiana, United States §

The warmest months in Mer Rouge are June, July and August, with daily mean temperatures ranging from 27 to 28 °C (80 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 9 to 11 °C (48 - 52 °F) throughout the day. On average each year, Mer Rouge experiences 170 days above 25 °C (77.0 °F) and 20 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Mer Rouge, Louisiana, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 27°C
(81°F)		 28°C
(83°F)		 30°C
(87°F)		 30°C
(87°F)		 34°C
(93°F)		 36°C
(96°F)		 37°C
(99°F)		 37°C
(100°F)		 38°C
(101°F)		 36°C
(97°F)		 29°C
(85°F)		 28°C
(83°F)
Mean maximum 24°C
(75°F)		 26°C
(79°F)		 28°C
(83°F)		 29°C
(85°F)		 33°C
(91°F)		 34°C
(94°F)		 36°C
(97°F)		 36°C
(98°F)		 36°C
(96°F)		 33°C
(92°F)		 27°C
(81°F)		 25°C
(78°F)
Average high 14°C
(58°F)		 16°C
(62°F)		 22°C
(71°F)		 24°C
(75°F)		 28°C
(83°F)		 31°C
(88°F)		 33°C
(91°F)		 33°C
(91°F)		 31°C
(89°F)		 26°C
(79°F)		 19°C
(66°F)		 16°C
(62°F)
Daily mean 9°C
(48°F)		 11°C
(52°F)		 16°C
(61°F)		 18°C
(65°F)		 23°C
(74°F)		 27°C
(80°F)		 28°C
(83°F)		 28°C
(82°F)		 26°C
(79°F)		 20°C
(68°F)		 13°C
(55°F)		 11°C
(52°F)
Average low 4°C
(40°F)		 6°C
(43°F)		 11°C
(51°F)		 13°C
(55°F)		 18°C
(66°F)		 22°C
(72°F)		 24°C
(76°F)		 24°C
(75°F)		 21°C
(71°F)		 15°C
(60°F)		 7°C
(45°F)		 6°C
(43°F)
Mean minimum -6°C
(21°F)		 -5°C
(24°F)		 0°C
(32°F)		 3°C
(38°F)		 12°C
(53°F)		 17°C
(64°F)		 21°C
(70°F)		 20°C
(68°F)		 15°C
(59°F)		 5°C
(42°F)		 -2°C
(28°F)		 -3°C
(28°F)
Minimum -12°C
(10°F)		 -16°C
(3°F)		 -4°C
(25°F)		 2°C
(35°F)		 8°C
(47°F)		 14°C
(57°F)		 19°C
(66°F)		 18°C
(65°F)		 12°C
(54°F)		 0°C
(33°F)		 -7°C
(20°F)		 -4°C
(25°F)

Compare climate in Mer Rouge with other places

Compare temperature, precipitation, sunshine, UV index in Mer Rouge, Louisiana, United States with other places around the world.

Monthly average precipitation in Mer Rouge, Louisiana, United States §

Mer Rouge usually has the most precipitation in February, March and April, with an average of 13 rainy days and 178 mm (7.0 inches) of precipitation per month. The driest months in Mer Rouge are August, September and November. On average, 84 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mer Rouge, Louisiana, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 129 (5.1) 200 (7.9) 155 (6.1) 178 (7.0) 130 (5.1) 114 (4.5) 102 (4.0) 92 (3.6) 73 (2.9) 142 (5.6) 86 (3.4) 116 (4.6)
Average precipitation days (≥ 1 mm) 9 15 14 10 13 13 13 11 8 9 8 9

Monthly sunshine hours in Mer Rouge, Louisiana, United States §

The sunniest months in Mer Rouge are June, July and August, when the sun shines an average of 10 hours 35 minutes a day. Least sunny months in Mer Rouge: January, February and December receive an average of 5 hours 40 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mer Rouge, Louisiana, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 154 167 228 262 305 314 343 316 285 269 239 194
Mean daily daylight hours 10h 15m 11h 1m 12h 0m 13h 0m 13h 50m 14h 15m 14h 2m 13h 17m 12h 19m 11h 19m 10h 27m 10h 1m

Solar UV radiation in Mer Rouge, Louisiana, United States §

Mer Rouge experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Mer Rouge UV Index data.

Average daily maximum UV levels by month for Mer Rouge, Louisiana, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 4 7 8 11 11 12 12 11 9 8 6 4

Detailed Monthly Weather Insights for Mer Rouge, Louisiana, United States

Discover in-depth weather details for every month in Mer Rouge. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Mer Rouge's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.