Sea weather in Marsh Island in Louisiana All the beach weather in Marsh Island

All the essential weather information for enjoying the beach in Marsh Island in Louisiana, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.

Weather: When should you go to the beach in Marsh Island over the next 7 days?

Discover the best moment to go to the beach in Marsh Island in Louisiana this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Marsh Island. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Sunday 19 July 202679°F to 85°Fdiscouraged
Monday 20 July 202681°F to 86°Fdiscouraged
Tuesday 21 July 202683°F to 90°Fdiscouraged
Wednesday 22 July 202681°F to 88°Fdiscouraged
Thursday 23 July 202677°F to 86°Fdiscouraged
Friday 24 July 202681°F to 86°Frecommended
Saturday 25 July 202681°F to 86°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Marsh Island

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 06:19 and will set at 20:07 on the beach(es) of Marsh Island. The outside temperature will be a high of 85°F t and a low of 79°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 14.9mph km/h (with gusts up to 25.5mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (82°F)27°C (81°F)29°C (83°F)27°C (80°F)29°C (83°F)29°C (83°F)29°C (84°F)
Perceived temperature31°C (88°F)32°C (90°F)31°C (89°F)33°C (92°F)28°C (83°F)31°C (88°F)33°C (92°F)35°C (94°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%79%83%78%64%65%77%80%
Barometric pressure1016 hPa1016 hPa1016 hPa1017 hPa1016 hPa1014 hPa1013 hPa1013 hPa
Cloud cover11%16%17%11%6%6%5%6%
Heat index31°C (88°F)32°C (90°F)31°C (89°F)33°C (92°F)28°C (83°F)31°C (88°F)33°C (92°F)35°C (94°F)
Dew point23°C (73°F)24°C (75°F)24°C (76°F)24°C (76°F)19°C (67°F)21°C (70°F)24°C (76°F)25°C (77°F)
Wind
Speed13km/h (8mph)18km/h (11mph)18km/h (11mph)15km/h (9mph)5km/h (3mph)14km/h (9mph)24km/h (15mph)24km/h (15mph)
Gusts20km/h (12mph)27km/h (17mph)26km/h (16mph)20km/h (12mph)11km/h (7mph)27km/h (17mph)41km/h (25mph)36km/h (23mph)
Direction 288°
WNW
293°
WNW
307°
NW
317°
NW
303°
WNW
242°
WSW
253°
WSW
262°
W
Wind chill28°C (83°F)28°C (82°F)27°C (81°F)29°C (83°F)27°C (80°F)29°C (83°F)29°C (83°F)29°C (84°F)
Waves
Height0.2m (0.7ft)0.3m (0.9ft)0.2m (0.8ft)0.2m (0.8ft)0.1m (0.5ft)0.2m (0.6ft)0.4m (1.2ft)0.3m (1.1ft)
Direction 264°
W
272°
W
298°
WNW
315°
NW
318°
NW
276°
W
260°
W
263°
W
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.
Significant height0.5m (1.6ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.3m (1ft)0.6m (2ft)1.0m (3.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 06:19 and will set at 20:07 on the beach(es) of Marsh Island. The outside temperature will be a high of 86°F t and a low of 81°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.2mph km/h (with gusts up to 21.8mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (83°F)28°C (82°F)27°C (81°F)29°C (84°F)28°C (82°F)30°C (85°F)30°C (87°F)29°C (85°F)
Perceived temperature34°C (93°F)33°C (91°F)31°C (87°F)33°C (91°F)30°C (85°F)33°C (91°F)37°C (98°F)35°C (95°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%81%79%70%64%65%74%76%
Barometric pressure1013 hPa1012 hPa1013 hPa1015 hPa1014 hPa1012 hPa1011 hPa1011 hPa
Cloud cover9%10%10%11%11%10%17%11%
Heat index34°C (93°F)33°C (91°F)31°C (87°F)33°C (91°F)30°C (85°F)33°C (91°F)37°C (98°F)35°C (95°F)
Dew point25°C (77°F)24°C (76°F)23°C (74°F)23°C (73°F)20°C (68°F)22°C (72°F)25°C (77°F)25°C (77°F)
Wind
Speed20km/h (12mph)21km/h (13mph)23km/h (15mph)19km/h (12mph)11km/h (7mph)18km/h (11mph)26km/h (16mph)19km/h (12mph)
Gusts30km/h (18mph)32km/h (20mph)35km/h (22mph)25km/h (16mph)23km/h (15mph)18km/h (11mph)33km/h (20mph)32km/h (20mph)
Direction 279°
W
297°
WNW
306°
NW
321°
NW
316°
NW
254°
WSW
260°
W
302°
WNW
Wind chill29°C (83°F)28°C (82°F)27°C (81°F)29°C (84°F)28°C (82°F)30°C (85°F)30°C (87°F)29°C (85°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (0.9ft)0.2m (0.7ft)0.2m (0.8ft)0.4m (1.4ft)0.3m (1.1ft)
Direction 274°
W
285°
WNW
303°
WNW
320°
NW
311°
NW
267°
W
250°
WSW
263°
W
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.
Significant height0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.6m (2ft)0.5m (1.6ft)0.7m (2.3ft)1.1m (3.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 06:20 and will set at 20:06 on the beach(es) of Marsh Island. The outside temperature will be a high of 90°F t and a low of 83°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 18.6mph km/h (with gusts up to 26.7mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (83°F)28°C (82°F)29°C (84°F)31°C (88°F)32°C (89°F)31°C (87°F)29°C (85°F)
Perceived temperature32°C (90°F)33°C (91°F)31°C (89°F)32°C (90°F)35°C (95°F)38°C (100°F)36°C (97°F)35°C (95°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%78%78%68%62%63%70%77%
Barometric pressure1011 hPa1010 hPa1012 hPa1013 hPa1012 hPa1011 hPa1010 hPa1012 hPa
Cloud cover10%18%19%46%44%21%31%46%
Heat index32°C (90°F)33°C (91°F)31°C (89°F)32°C (90°F)35°C (95°F)38°C (100°F)36°C (97°F)35°C (95°F)
Dew point23°C (74°F)24°C (75°F)24°C (74°F)22°C (72°F)23°C (73°F)24°C (75°F)24°C (76°F)25°C (77°F)
Wind
Speed4km/h (2mph)19km/h (12mph)22km/h (13mph)21km/h (13mph)14km/h (9mph)11km/h (7mph)19km/h (12mph)30km/h (19mph)
Gusts6km/h (4mph)29km/h (18mph)32km/h (20mph)28km/h (18mph)22km/h (14mph)19km/h (11mph)32km/h (20mph)43km/h (27mph)
Direction 16°
NNE
293°
WNW
302°
WNW
306°
NW
304°
NW
277°
W
248°
WSW
244°
WSW
Wind chill28°C (83°F)28°C (83°F)28°C (82°F)29°C (84°F)31°C (88°F)32°C (89°F)31°C (87°F)29°C (85°F)
Waves
Height0.2m (0.6ft)0.2m (0.7ft)0.3m (1.0ft)0.3m (1.1ft)0.2m (0.6ft)0.3m (0.9ft)0.3m (1.0ft)0.4m (1.4ft)
Direction 261°
W
271°
W
290°
WNW
300°
WNW
308°
NW
240°
WSW
227°
SW
230°
SW
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.
Significant height0.4m (1.3ft)0.6m (2ft)0.8m (2.6ft)0.9m (3ft)0.4m (1.3ft)0.8m (2.6ft)0.6m (2ft)1.1m (3.6ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 06:20 and will set at 20:06 on the beach(es) of Marsh Island. The outside temperature will be a high of 88°F t and a low of 81°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 19.9mph km/h (with gusts up to 28mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)29°C (84°F)29°C (84°F)30°C (86°F)27°C (81°F)28°C (83°F)30°C (85°F)29°C (84°F)
Perceived temperature35°C (95°F)34°C (94°F)34°C (94°F)36°C (97°F)30°C (86°F)32°C (90°F)36°C (96°F)35°C (95°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%78%80%75%72%73%78%81%
Barometric pressure1012 hPa1011 hPa1013 hPa1014 hPa1014 hPa1013 hPa1012 hPa1014 hPa
Cloud cover24%25%19%17%14%15%21%27%
Heat index35°C (95°F)34°C (94°F)34°C (94°F)36°C (97°F)30°C (86°F)32°C (90°F)36°C (96°F)35°C (95°F)
Dew point25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)22°C (71°F)23°C (74°F)25°C (78°F)25°C (78°F)
Wind
Speed30km/h (19mph)27km/h (17mph)27km/h (17mph)25km/h (16mph)24km/h (15mph)28km/h (17mph)32km/h (20mph)27km/h (17mph)
Gusts42km/h (26mph)38km/h (24mph)39km/h (24mph)34km/h (21mph)24km/h (15mph)34km/h (21mph)45km/h (28mph)40km/h (25mph)
Direction 250°
WSW
260°
W
270°
W
268°
W
247°
WSW
236°
WSW
246°
WSW
248°
WSW
Wind chill29°C (85°F)29°C (84°F)29°C (84°F)30°C (86°F)27°C (81°F)28°C (83°F)30°C (85°F)29°C (84°F)
Waves
Height0.4m (1.2ft)0.4m (1.2ft)0.3m (1.1ft)0.3m (1.0ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.3ft)
Direction 248°
WSW
258°
WSW
264°
W
265°
W
251°
WSW
240°
WSW
243°
WSW
236°
SW
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.
Significant height0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 06:21 and will set at 20:05 on the beach(es) of Marsh Island. The outside temperature will be a high of 86°F t and a low of 77°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 15.5mph km/h (with gusts up to 26.7mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)29°C (84°F)28°C (82°F)28°C (83°F)27°C (80°F)30°C (87°F)29°C (85°F)29°C (84°F)
Perceived temperature35°C (94°F)33°C (92°F)32°C (89°F)33°C (91°F)28°C (83°F)36°C (96°F)35°C (94°F)35°C (95°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%77%82%79%69%70%76%83%
Barometric pressure1014 hPa1014 hPa1015 hPa1016 hPa1016 hPa1014 hPa1014 hPa1014 hPa
Cloud cover83%32%74%11%13%20%13%20%
Heat index35°C (94°F)33°C (92°F)32°C (89°F)33°C (91°F)28°C (83°F)36°C (96°F)35°C (94°F)35°C (95°F)
Dew point25°C (77°F)24°C (75°F)24°C (76°F)24°C (76°F)20°C (68°F)24°C (76°F)25°C (76°F)26°C (78°F)
Wind
Speed23km/h (14mph)23km/h (14mph)18km/h (11mph)17km/h (11mph)12km/h (8mph)18km/h (11mph)25km/h (15mph)19km/h (12mph)
Gusts32km/h (20mph)33km/h (21mph)27km/h (17mph)23km/h (14mph)26km/h (16mph)26km/h (16mph)43km/h (26mph)33km/h (21mph)
Direction 253°
WSW
269°
W
298°
WNW
308°
NW
275°
W
236°
SW
239°
WSW
260°
W
Wind chill29°C (85°F)29°C (84°F)28°C (82°F)28°C (83°F)27°C (80°F)30°C (87°F)29°C (85°F)29°C (84°F)
Waves
Height0.3m (1.0ft)0.3m (0.9ft)0.2m (0.8ft)0.2m (0.6ft)0.1m (0.5ft)0.2m (0.8ft)0.3m (1.1ft)0.3m (0.9ft)
Direction 236°
WSW
256°
WSW
271°
W
287°
WNW
271°
W
243°
WSW
238°
WSW
240°
WSW
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.6m (2ft)0.9m (3ft)0.6m (2ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 06:22 and will set at 20:05 on the beach(es) of Marsh Island. The outside temperature will be a high of 86°F t and a low of 81°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 12.4mph km/h (with gusts up to 19.3mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (83°F)28°C (82°F)27°C (81°F)29°C (84°F)27°C (80°F)29°C (85°F)29°C (85°F)30°C (85°F)
Perceived temperature34°C (94°F)33°C (91°F)32°C (89°F)33°C (92°F)29°C (83°F)32°C (90°F)35°C (96°F)37°C (99°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%84%84%75%65%63%79%84%
Barometric pressure1014 hPa1014 hPa1014 hPa1015 hPa1015 hPa1013 hPa1013 hPa1014 hPa
Cloud cover13%13%4%4%4%3%2%3%
Heat index34°C (94°F)33°C (91°F)32°C (89°F)33°C (92°F)29°C (83°F)32°C (90°F)35°C (96°F)37°C (99°F)
Dew point25°C (78°F)25°C (77°F)25°C (76°F)24°C (75°F)20°C (68°F)22°C (71°F)25°C (78°F)27°C (80°F)
Wind
Speed20km/h (12mph)16km/h (10mph)13km/h (8mph)10km/h (6mph)5km/h (3mph)10km/h (6mph)17km/h (11mph)20km/h (12mph)
Gusts30km/h (19mph)24km/h (15mph)20km/h (12mph)13km/h (8mph)11km/h (7mph)21km/h (13mph)29km/h (18mph)31km/h (19mph)
Direction 290°
WNW
306°
NW
327°
NNW
354°
N
277°
W
247°
WSW
240°
WSW
263°
W
Wind chill29°C (83°F)28°C (82°F)27°C (81°F)29°C (84°F)27°C (80°F)29°C (85°F)29°C (85°F)30°C (85°F)
Waves
Height0.2m (0.8ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.5ft)0.3m (1.1ft)0.2m (0.6ft)0.3m (1.0ft)0.3m (0.9ft)
Direction 256°
WSW
272°
W
283°
WNW
293°
WNW
290°
WNW
239°
WSW
235°
SW
240°
WSW
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.5m (1.6ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Saturday 25 July 2026

On Saturday 25 July 2026, the sun will rise at 06:22 and will set at 20:04 on the beach(es) of Marsh Island. The outside temperature will be a high of 86°F t and a low of 81°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.8mph km/h (with gusts up to 24.2mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)29°C (84°F)29°C (84°F)30°C (86°F)27°C (80°F)28°C (82°F)29°C (85°F)29°C (84°F)
Perceived temperature36°C (97°F)35°C (95°F)35°C (94°F)36°C (98°F)29°C (84°F)31°C (88°F)35°C (96°F)35°C (94°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%83%82%77%76%77%80%81%
Barometric pressure1013 hPa1013 hPa1014 hPa1015 hPa1015 hPa1013 hPa1013 hPa1013 hPa
Cloud cover5%5%4%21%6%75%70%13%
Heat index36°C (97°F)35°C (95°F)35°C (94°F)36°C (98°F)29°C (84°F)31°C (88°F)35°C (96°F)35°C (94°F)
Dew point26°C (79°F)26°C (78°F)25°C (78°F)25°C (78°F)22°C (72°F)23°C (74°F)26°C (78°F)25°C (77°F)
Wind
Speed18km/h (11mph)17km/h (11mph)17km/h (10mph)16km/h (10mph)21km/h (13mph)23km/h (14mph)27km/h (17mph)20km/h (13mph)
Gusts27km/h (16mph)25km/h (15mph)24km/h (15mph)21km/h (13mph)22km/h (13mph)24km/h (15mph)39km/h (24mph)30km/h (19mph)
Direction 264°
W
262°
W
272°
W
268°
W
229°
SW
218°
SW
237°
WSW
248°
WSW
Wind chill29°C (85°F)29°C (84°F)29°C (84°F)30°C (86°F)27°C (80°F)28°C (82°F)29°C (85°F)29°C (84°F)
Waves
Height0.3m (1.0ft)0.3m (0.9ft)0.3m (0.9ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (0.9ft)0.3m (1.1ft)0.3m (0.9ft)
Direction 233°
SW
231°
SW
238°
WSW
254°
WSW
249°
WSW
226°
SW
229°
SW
227°
SW
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)0.8m (2.6ft)0.6m (2ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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