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
Saturday 13 December 202565°F to 67°Frecommended
Sunday 14 December 202543°F to 67°Fnot recommended
Monday 15 December 202540°F to 52°Fdiscouraged
Tuesday 16 December 202550°F to 61°Frecommended
Wednesday 17 December 202561°F to 65°Fdiscouraged
Thursday 18 December 202565°F to 67°Fdiscouraged
Friday 19 December 202561°F to 63°Fdiscouraged

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

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 06:53 and will set at 17:09 on the beach(es) of Marsh Island. The outside temperature will be a high of 67°F t and a low of 65°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 9.3mph km/h (with gusts up to 19.3mph). Wave height will be up to 0.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (66°F)19°C (66°F)19°C (66°F)18°C (65°F)19°C (65°F)18°C (65°F)18°C (64°F)18°C (65°F)
Perceived temperature19°C (66°F)19°C (66°F)19°C (66°F)18°C (65°F)19°C (65°F)18°C (65°F)18°C (64°F)18°C (65°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity89%89%88%93%90%90%93%94%
Barometric pressure1018 hPa1018 hPa1018 hPa1019 hPa1018 hPa1017 hPa1018 hPa1019 hPa
Cloud cover56%89%86%22%16%16%29%32%
Heat index19°C (66°F)19°C (66°F)19°C (66°F)18°C (65°F)19°C (65°F)18°C (65°F)18°C (64°F)18°C (65°F)
Dew point17°C (62°F)17°C (62°F)17°C (62°F)17°C (63°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (63°F)
Wind
Speed8km/h (5mph)9km/h (6mph)9km/h (6mph)14km/h (9mph)15km/h (9mph)12km/h (8mph)13km/h (8mph)11km/h (7mph)
Gusts17km/h (10mph)20km/h (12mph)19km/h (12mph)29km/h (18mph)31km/h (19mph)26km/h (16mph)28km/h (17mph)23km/h (15mph)
Direction 165°
SSE
152°
SSE
156°
SSE
128°
SE
147°
SSE
150°
SSE
154°
SSE
148°
SSE
Wind chill19°C (66°F)19°C (66°F)19°C (66°F)18°C (65°F)19°C (65°F)18°C (65°F)18°C (64°F)18°C (65°F)
Waves
Height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.6ft)0.1m (0.5ft)0.1m (0.4ft)0.1m (0.5ft)
Direction 150°
SSE
154°
SSE
159°
SSE
161°
SSE
163°
SSE
165°
SSE
160°
SSE
161°
SSE
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)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)
Sea water temperature
Water temperature15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:54 and will set at 17:09 on the beach(es) of Marsh Island. The outside temperature will be a high of 67°F t and a low of 43°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! Be careful, the sea will be generally rough with a wind speed of up to 26.1mph km/h (with gusts up to 32.9mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (65°F)19°C (65°F)17°C (63°F)13°C (56°F)12°C (54°F)12°C (53°F)7°C (45°F)8°C (46°F)
Perceived temperature19°C (65°F)19°C (65°F)17°C (63°F)10°C (50°F)9°C (48°F)8°C (47°F)2°C (36°F)4°C (38°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity93%93%93%83%70%57%51%54%
Barometric pressure1019 hPa1020 hPa1022 hPa1026 hPa1027 hPa1027 hPa1029 hPa1030 hPa
Cloud cover54%50%100%85%25%5%0%0%
Heat index19°C (65°F)19°C (65°F)17°C (63°F)13°C (56°F)12°C (54°F)12°C (53°F)7°C (45°F)8°C (46°F)
Dew point17°C (63°F)17°C (63°F)16°C (61°F)10°C (51°F)7°C (44°F)4°C (38°F)-2°C (28°F)-1°C (31°F)
Wind
Speed8km/h (5mph)3km/h (2mph)30km/h (19mph)42km/h (26mph)41km/h (25mph)39km/h (24mph)38km/h (23mph)36km/h (22mph)
Gusts17km/h (10mph)5km/h (3mph)46km/h (28mph)53km/h (33mph)53km/h (33mph)41km/h (25mph)41km/h (26mph)45km/h (28mph)
Direction 165°
SSE
213°
SSW
11°
NNE
16°
NNE
20°
NNE
20°
NNE
23°
NNE
32°
NNE
Wind chill19°C (65°F)19°C (65°F)17°C (63°F)10°C (50°F)9°C (48°F)8°C (47°F)2°C (36°F)4°C (38°F)
Waves
Height0.3m (0.9ft)0.1m (0.3ft)0.2m (0.8ft)0.5m (1.8ft)0.5m (1.7ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)
Direction 162°
SSE
168°
SSE
353°
N
14°
NNE
22°
NNE
20°
NNE
27°
NNE
37°
NE
Period0.1 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.
Significant height0.3m (1ft)0.1m (0.3ft)0.9m (3ft)1.7m (5.6ft)1.5m (4.9ft)1.4m (4.6ft)1.4m (4.6ft)1.4m (4.6ft)
Sea water temperature
Water temperature17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:55 and will set at 17:10 on the beach(es) of Marsh Island. The outside temperature will be a high of 52°F t and a low of 40°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 22.4mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (44°F)5°C (41°F)4°C (40°F)5°C (41°F)6°C (42°F)8°C (46°F)8°C (46°F)11°C (52°F)
Perceived temperature2°C (36°F)1°C (33°F)-0°C (32°F)1°C (34°F)4°C (39°F)7°C (44°F)6°C (43°F)9°C (49°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity53%53%56%51%37%31%34%45%
Barometric pressure1030 hPa1031 hPa1031 hPa1031 hPa1029 hPa1027 hPa1026 hPa1026 hPa
Cloud cover0%0%0%0%0%0%0%73%
Heat index7°C (44°F)5°C (41°F)4°C (40°F)5°C (41°F)6°C (42°F)8°C (46°F)8°C (46°F)11°C (52°F)
Dew point-2°C (28°F)-4°C (26°F)-4°C (25°F)-4°C (24°F)-8°C (18°F)-8°C (17°F)-7°C (19°F)-0°C (31°F)
Wind
Speed30km/h (19mph)25km/h (16mph)23km/h (14mph)19km/h (12mph)9km/h (6mph)7km/h (4mph)8km/h (5mph)14km/h (9mph)
Gusts36km/h (22mph)31km/h (19mph)29km/h (18mph)24km/h (15mph)17km/h (11mph)14km/h (9mph)17km/h (11mph)20km/h (13mph)
Direction 43°
NE
46°
NE
51°
NE
56°
ENE
46°
NE
54°
NE
66°
ENE
105°
ESE
Wind chill2°C (36°F)1°C (33°F)-0°C (32°F)1°C (34°F)4°C (39°F)7°C (44°F)6°C (43°F)9°C (49°F)
Waves
Height0.4m (1.4ft)0.4m (1.2ft)0.3m (1.1ft)0.3m (1.0ft)0.2m (0.7ft)0.1m (0.4ft)0.2m (0.6ft)0.2m (0.8ft)
Direction 46°
NE
44°
NE
42°
NE
48°
NE
53°
NE
52°
NE
64°
ENE
98°
E
Period1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.
Significant height1.2m (3.9ft)0.9m (3ft)0.9m (3ft)0.7m (2.3ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.6m (2ft)
Sea water temperature
Water temperature17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:55 and will set at 17:10 on the beach(es) of Marsh Island. The outside temperature will be a high of 61°F t and a low of 50°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 11.8mph km/h (with gusts up to 21.1mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (52°F)11°C (51°F)10°C (50°F)11°C (52°F)13°C (56°F)15°C (59°F)15°C (60°F)16°C (60°F)
Perceived temperature9°C (49°F)9°C (49°F)8°C (47°F)9°C (48°F)12°C (53°F)14°C (57°F)15°C (60°F)16°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity51%61%65%77%78%76%81%87%
Barometric pressure1025 hPa1024 hPa1023 hPa1025 hPa1023 hPa1020 hPa1021 hPa1021 hPa
Cloud cover100%47%27%54%26%32%33%34%
Heat index11°C (52°F)11°C (51°F)10°C (50°F)11°C (52°F)13°C (56°F)15°C (59°F)15°C (60°F)16°C (60°F)
Dew point1°C (34°F)4°C (38°F)4°C (39°F)7°C (45°F)10°C (49°F)11°C (52°F)12°C (54°F)13°C (56°F)
Wind
Speed14km/h (9mph)12km/h (8mph)15km/h (9mph)17km/h (10mph)15km/h (10mph)17km/h (10mph)17km/h (10mph)19km/h (12mph)
Gusts20km/h (12mph)18km/h (11mph)22km/h (14mph)23km/h (14mph)22km/h (14mph)25km/h (16mph)29km/h (18mph)34km/h (21mph)
Direction 120°
ESE
105°
ESE
92°
E
98°
E
113°
ESE
114°
ESE
110°
ESE
104°
ESE
Wind chill9°C (49°F)9°C (49°F)8°C (47°F)9°C (48°F)12°C (53°F)14°C (57°F)15°C (60°F)16°C (60°F)
Waves
Height0.2m (0.6ft)0.2m (0.5ft)0.1m (0.5ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.8ft)0.3m (1.0ft)0.3m (1.1ft)
Direction 112°
ESE
103°
ESE
98°
E
99°
E
113°
ESE
115°
ESE
118°
ESE
118°
ESE
Period1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:56 and will set at 17:11 on the beach(es) of Marsh Island. The outside temperature will be a high of 65°F t and a low of 61°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 22.4mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)18°C (65°F)18°C (64°F)18°C (64°F)
Perceived temperature16°C (61°F)16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)18°C (65°F)18°C (64°F)18°C (64°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%90%91%89%86%88%93%95%
Barometric pressure1020 hPa1020 hPa1019 hPa1020 hPa1019 hPa1017 hPa1017 hPa1017 hPa
Cloud cover50%42%51%80%61%42%47%48%
Heat index16°C (61°F)16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)18°C (65°F)18°C (64°F)18°C (64°F)
Dew point14°C (58°F)14°C (58°F)15°C (58°F)15°C (59°F)16°C (60°F)16°C (61°F)17°C (62°F)17°C (63°F)
Wind
Speed20km/h (12mph)19km/h (12mph)20km/h (12mph)16km/h (10mph)15km/h (10mph)17km/h (11mph)21km/h (13mph)24km/h (15mph)
Gusts36km/h (22mph)36km/h (22mph)24km/h (15mph)31km/h (19mph)30km/h (18mph)21km/h (13mph)28km/h (17mph)24km/h (15mph)
Direction 104°
ESE
106°
ESE
101°
ESE
103°
ESE
129°
SE
132°
SE
126°
SE
131°
SE
Wind chill16°C (61°F)16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)18°C (65°F)18°C (64°F)18°C (64°F)
Waves
Height0.3m (0.9ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (1.0ft)0.2m (0.6ft)0.1m (0.5ft)0.2m (0.8ft)0.4m (1.3ft)
Direction 114°
ESE
110°
ESE
109°
ESE
112°
ESE
116°
ESE
118°
ESE
131°
SE
138°
SE
Period1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.
Significant height0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.8m (2.6ft)0.3m (1ft)0.4m (1.3ft)0.6m (2ft)1.0m (3.3ft)
Sea water temperature
Water temperature15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:57 and will set at 17:11 on the beach(es) of Marsh Island. The outside temperature will be a high of 67°F t and a low of 65°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 13.7mph km/h (with gusts up to 19.9mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature18°C (65°F)18°C (65°F)18°C (64°F)19°C (66°F)19°C (66°F)19°C (66°F)18°C (65°F)18°C (64°F)
Perceived temperature18°C (65°F)18°C (65°F)18°C (64°F)19°C (66°F)19°C (66°F)19°C (66°F)18°C (65°F)18°C (64°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity95%96%98%96%94%95%98%98%
Barometric pressure1016 hPa1016 hPa1016 hPa1018 hPa1017 hPa1016 hPa1017 hPa1019 hPa
Cloud cover71%68%84%29%87%26%100%100%
Heat index18°C (65°F)18°C (65°F)18°C (64°F)19°C (66°F)19°C (66°F)19°C (66°F)18°C (65°F)18°C (64°F)
Dew point18°C (64°F)18°C (64°F)18°C (64°F)18°C (65°F)18°C (64°F)18°C (65°F)18°C (64°F)17°C (63°F)
Wind
Speed22km/h (14mph)18km/h (11mph)13km/h (8mph)15km/h (9mph)9km/h (5mph)12km/h (7mph)10km/h (6mph)7km/h (4mph)
Gusts27km/h (17mph)19km/h (12mph)27km/h (17mph)32km/h (20mph)18km/h (11mph)24km/h (15mph)20km/h (13mph)14km/h (9mph)
Direction 147°
SSE
152°
SSE
154°
SSE
160°
SSE
194°
SSW
193°
SSW
218°
SW
269°
W
Wind chill18°C (65°F)18°C (65°F)18°C (64°F)19°C (66°F)19°C (66°F)19°C (66°F)18°C (65°F)18°C (64°F)
Waves
Height0.4m (1.2ft)0.3m (0.9ft)0.3m (1.1ft)0.3m (1.0ft)0.2m (0.6ft)0.1m (0.4ft)0.2m (0.8ft)0.1m (0.3ft)
Direction 143°
SE
150°
SSE
160°
SSE
173°
S
183°
S
187°
S
177°
S
176°
S
Period1.8 sec.1.8 sec.1.8 sec.1.8 sec.1.8 sec.5.7 sec.5.5 sec.5.7 sec.
Significant height0.8m (2.6ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)
Sea water temperature
Water temperature15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 06:57 and will set at 17:11 on the beach(es) of Marsh Island. The outside temperature will be a high of 63°F t and a low of 61°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 13.1mph km/h (with gusts up to 20.5mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (62°F)16°C (62°F)16°C (61°F)17°C (62°F)17°C (63°F)16°C (61°F)16°C (61°F)17°C (62°F)
Perceived temperature17°C (62°F)16°C (62°F)16°C (61°F)17°C (62°F)17°C (63°F)16°C (61°F)16°C (61°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity97%96%96%95%88%93%99%98%
Barometric pressure1019 hPa1019 hPa1020 hPa1021 hPa1021 hPa1019 hPa1020 hPa1020 hPa
Cloud cover100%81%76%81%3%3%75%56%
Heat index17°C (62°F)16°C (62°F)16°C (61°F)17°C (62°F)17°C (63°F)16°C (61°F)16°C (61°F)17°C (62°F)
Dew point16°C (62°F)16°C (60°F)15°C (60°F)16°C (61°F)15°C (59°F)15°C (59°F)16°C (60°F)16°C (61°F)
Wind
Speed4km/h (3mph)1km/h (1mph)6km/h (4mph)11km/h (7mph)10km/h (6mph)10km/h (6mph)15km/h (10mph)21km/h (13mph)
Gusts9km/h (6mph)3km/h (2mph)13km/h (8mph)22km/h (14mph)22km/h (14mph)22km/h (14mph)33km/h (20mph)26km/h (16mph)
Direction 249°
WSW
289°
WNW
51°
NE
59°
ENE
142°
SE
165°
SSE
156°
SSE
152°
SSE
Wind chill17°C (62°F)16°C (62°F)16°C (61°F)17°C (62°F)17°C (63°F)16°C (61°F)16°C (61°F)17°C (62°F)
Waves
Height0.4m (1.2ft)0.3m (0.9ft)0.1m (0.5ft)0.1m (0.5ft)0.1m (0.4ft)0.6m (1.8ft)0.2m (0.5ft)0.3m (0.9ft)
Direction 174°
S
170°
S
23°
NNE
61°
ENE
93°
E
124°
SE
141°
SE
145°
SE
Period6.3 sec.6.5 sec.6.7 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.4.9 sec.
Significant height0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.6m (2ft)
Sea water temperature
Water temperature15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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