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 14 December 202540°F to 67°Fnot recommended
Monday 15 December 202538°F to 50°Fdiscouraged
Tuesday 16 December 202549°F to 59°Frecommended
Wednesday 17 December 202559°F to 63°Frecommended
Thursday 18 December 202563°F to 67°Frecommended
Friday 19 December 202558°F to 65°Fdiscouraged
Saturday 20 December 202561°F to 67°Fdiscouraged

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

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 40°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 28.6mph km/h (with gusts up to 34.8mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (65°F)18°C (65°F)18°C (64°F)11°C (53°F)9°C (48°F)9°C (49°F)5°C (41°F)6°C (43°F)
Perceived temperature19°C (65°F)18°C (65°F)18°C (64°F)8°C (46°F)4°C (40°F)5°C (41°F)-1°C (30°F)1°C (34°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity89%91%96%88%78%58%53%55%
Barometric pressure1019 hPa1020 hPa1022 hPa1026 hPa1028 hPa1028 hPa1030 hPa1031 hPa
Cloud cover88%61%100%100%32%4%0%0%
Heat index19°C (65°F)18°C (65°F)18°C (64°F)11°C (53°F)9°C (48°F)9°C (49°F)5°C (41°F)6°C (43°F)
Dew point17°C (62°F)17°C (62°F)17°C (62°F)9°C (49°F)5°C (42°F)1°C (35°F)-4°C (25°F)-2°C (28°F)
Wind
Speed8km/h (5mph)1km/h (1mph)24km/h (15mph)46km/h (29mph)44km/h (28mph)41km/h (26mph)40km/h (25mph)37km/h (23mph)
Gusts17km/h (10mph)3km/h (2mph)38km/h (24mph)56km/h (35mph)56km/h (35mph)47km/h (30mph)42km/h (26mph)45km/h (28mph)
Direction 155°
SSE
315°
NW

N
11°
N
17°
NNE
17°
NNE
20°
NNE
28°
NNE
Wind chill19°C (65°F)18°C (65°F)18°C (64°F)8°C (46°F)4°C (40°F)5°C (41°F)-1°C (30°F)1°C (34°F)
Waves
Height0.1m (0.5ft)0.6m (1.8ft)0.3m (1.1ft)0.5m (1.8ft)0.5m (1.7ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)
Direction 155°
SSE
161°
SSE

N
13°
NNE
16°
NNE
17°
NNE
25°
NNE
35°
NE
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 height0.3m (1ft)0.2m (0.7ft)1.1m (3.6ft)1.7m (5.6ft)1.6m (5.2ft)1.4m (4.6ft)1.5m (4.9ft)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 50°F t and a low of 38°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 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (41°F)4°C (39°F)3°C (37°F)3°C (38°F)5°C (41°F)6°C (44°F)6°C (43°F)9°C (49°F)
Perceived temperature-0°C (32°F)-1°C (30°F)-2°C (28°F)-1°C (30°F)1°C (34°F)5°C (41°F)4°C (39°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity54%56%58%53%40%31%35%45%
Barometric pressure1031 hPa1031 hPa1032 hPa1032 hPa1029 hPa1027 hPa1027 hPa1026 hPa
Cloud cover0%0%0%0%0%0%0%32%
Heat index5°C (41°F)4°C (39°F)3°C (37°F)3°C (38°F)5°C (41°F)6°C (44°F)6°C (43°F)9°C (49°F)
Dew point-4°C (25°F)-4°C (24°F)-5°C (23°F)-5°C (22°F)-8°C (18°F)-9°C (15°F)-8°C (17°F)-2°C (29°F)
Wind
Speed30km/h (19mph)27km/h (17mph)23km/h (14mph)21km/h (13mph)17km/h (11mph)6km/h (4mph)9km/h (6mph)14km/h (9mph)
Gusts36km/h (22mph)32km/h (20mph)28km/h (18mph)24km/h (15mph)31km/h (20mph)14km/h (8mph)19km/h (12mph)21km/h (13mph)
Direction 37°
NE
37°
NE
40°
NE
39°
NE
47°
NE
44°
NE
51°
NE
92°
E
Wind chill-0°C (32°F)-1°C (30°F)-2°C (28°F)-1°C (30°F)1°C (34°F)5°C (41°F)4°C (39°F)7°C (45°F)
Waves
Height0.4m (1.4ft)0.4m (1.2ft)0.3m (1.0ft)0.3m (0.9ft)0.2m (0.6ft)0.1m (0.3ft)0.5m (1.7ft)0.1m (0.5ft)
Direction 43°
NE
45°
NE
44°
NE
49°
NE
50°
NE
54°
NE
62°
ENE
86°
E
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 height1.2m (3.9ft)0.9m (3ft)0.7m (2.3ft)0.6m (2ft)0.4m (1.3ft)0.2m (0.7ft)0.2m (0.7ft)0.4m (1.3ft)
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 59°F t and a low of 49°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 10.6mph km/h (with gusts up to 16.8mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (49°F)9°C (48°F)9°C (48°F)10°C (50°F)12°C (53°F)14°C (57°F)15°C (58°F)15°C (59°F)
Perceived temperature7°C (45°F)7°C (44°F)7°C (45°F)8°C (47°F)11°C (51°F)13°C (55°F)14°C (57°F)15°C (59°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity49%54%64%79%79%76%77%82%
Barometric pressure1025 hPa1024 hPa1024 hPa1024 hPa1023 hPa1020 hPa1020 hPa1020 hPa
Cloud cover95%33%20%15%22%21%33%34%
Heat index9°C (49°F)9°C (48°F)9°C (48°F)10°C (50°F)12°C (53°F)14°C (57°F)15°C (58°F)15°C (59°F)
Dew point-1°C (30°F)0°C (32°F)2°C (36°F)7°C (44°F)8°C (47°F)10°C (49°F)11°C (51°F)12°C (54°F)
Wind
Speed13km/h (8mph)14km/h (9mph)12km/h (7mph)13km/h (8mph)9km/h (6mph)10km/h (6mph)11km/h (7mph)17km/h (10mph)
Gusts19km/h (12mph)21km/h (13mph)17km/h (11mph)18km/h (11mph)14km/h (9mph)16km/h (10mph)18km/h (11mph)27km/h (17mph)
Direction 110°
ESE
102°
ESE
94°
E
102°
ESE
101°
E
105°
ESE
105°
ESE
112°
ESE
Wind chill7°C (45°F)7°C (44°F)7°C (45°F)8°C (47°F)11°C (51°F)13°C (55°F)14°C (57°F)15°C (59°F)
Waves
Height0.2m (0.6ft)0.1m (0.5ft)0.1m (0.5ft)0.1m (0.5ft)0.2m (0.6ft)0.1m (0.5ft)0.2m (0.8ft)0.3m (0.9ft)
Direction 111°
ESE
112°
ESE
94°
E
100°
E
107°
ESE
116°
ESE
121°
ESE
117°
ESE
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)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.6m (2ft)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 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 63°F t and a low of 59°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 11.2mph km/h (with gusts up to 22.4mph). Wave height will be up to 0.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (59°F)15°C (60°F)16°C (60°F)16°C (61°F)16°C (61°F)17°C (63°F)16°C (62°F)17°C (62°F)
Perceived temperature15°C (59°F)15°C (60°F)16°C (60°F)16°C (61°F)16°C (61°F)17°C (63°F)16°C (62°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity87%89%92%92%89%87%92%95%
Barometric pressure1019 hPa1018 hPa1018 hPa1019 hPa1018 hPa1015 hPa1016 hPa1016 hPa
Cloud cover55%54%53%98%60%73%28%31%
Heat index15°C (59°F)15°C (60°F)16°C (60°F)16°C (61°F)16°C (61°F)17°C (63°F)16°C (62°F)17°C (62°F)
Dew point13°C (56°F)14°C (57°F)14°C (58°F)15°C (59°F)15°C (58°F)15°C (59°F)15°C (59°F)16°C (61°F)
Wind
Speed17km/h (10mph)16km/h (10mph)16km/h (10mph)17km/h (10mph)15km/h (10mph)18km/h (11mph)18km/h (11mph)18km/h (11mph)
Gusts28km/h (17mph)30km/h (19mph)29km/h (18mph)29km/h (18mph)27km/h (17mph)32km/h (20mph)35km/h (22mph)36km/h (22mph)
Direction 99°
E
100°
E
93°
E
85°
E
83°
E
108°
ESE
96°
E
100°
E
Wind chill15°C (59°F)15°C (60°F)16°C (60°F)16°C (61°F)16°C (61°F)17°C (63°F)16°C (62°F)17°C (62°F)
Waves
Height0.2m (0.7ft)0.2m (0.6ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.6ft)0.1m (0.5ft)0.1m (0.5ft)0.2m (0.8ft)
Direction 110°
ESE
115°
ESE
118°
ESE
108°
ESE
123°
ESE
132°
SE
138°
SE
141°
SE
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)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.3m (1ft)0.4m (1.3ft)0.6m (2ft)
Sea water temperature
Water temperature15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°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 63°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 11.2mph 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 temperature17°C (63°F)18°C (64°F)18°C (65°F)19°C (66°F)19°C (67°F)19°C (66°F)18°C (64°F)18°C (65°F)
Perceived temperature17°C (63°F)18°C (64°F)18°C (65°F)19°C (66°F)19°C (67°F)19°C (66°F)18°C (64°F)18°C (65°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity96%95%96%92%90%91%93%96%
Barometric pressure1015 hPa1013 hPa1013 hPa1014 hPa1013 hPa1013 hPa1014 hPa1016 hPa
Cloud cover36%64%42%31%40%15%14%20%
Heat index17°C (63°F)18°C (64°F)18°C (65°F)19°C (66°F)19°C (67°F)19°C (66°F)18°C (64°F)18°C (65°F)
Dew point17°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)18°C (64°F)17°C (63°F)17°C (62°F)18°C (64°F)
Wind
Speed14km/h (9mph)14km/h (9mph)14km/h (9mph)16km/h (10mph)18km/h (11mph)16km/h (10mph)15km/h (9mph)12km/h (8mph)
Gusts30km/h (19mph)29km/h (18mph)29km/h (18mph)34km/h (21mph)24km/h (15mph)34km/h (21mph)31km/h (19mph)26km/h (16mph)
Direction 125°
SE
166°
SSE
191°
SSW
188°
S
193°
SSW
216°
SW
240°
WSW
270°
W
Wind chill17°C (63°F)18°C (64°F)18°C (65°F)19°C (66°F)19°C (67°F)19°C (66°F)18°C (64°F)18°C (65°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.3m (1.1ft)0.3m (1.1ft)0.3m (1.0ft)0.2m (0.7ft)0.1m (0.5ft)0.2m (0.5ft)
Direction 137°
SE
146°
SSE
152°
SSE
163°
SSE
180°
S
193°
SSW
214°
SSW
258°
WSW
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.5.0 sec.4.8 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)
Sea water temperature
Water temperature15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°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 65°F t and a low of 58°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 23mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature18°C (65°F)17°C (63°F)15°C (58°F)14°C (58°F)16°C (61°F)17°C (63°F)16°C (60°F)17°C (62°F)
Perceived temperature18°C (65°F)17°C (63°F)13°C (55°F)13°C (55°F)16°C (61°F)17°C (63°F)16°C (60°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity94%77%74%62%51%53%56%72%
Barometric pressure1017 hPa1018 hPa1020 hPa1022 hPa1020 hPa1019 hPa1019 hPa1020 hPa
Cloud cover75%9%12%6%5%8%5%3%
Heat index18°C (65°F)17°C (63°F)15°C (58°F)14°C (58°F)16°C (61°F)17°C (63°F)16°C (60°F)17°C (62°F)
Dew point17°C (63°F)13°C (56°F)10°C (50°F)7°C (45°F)6°C (42°F)7°C (45°F)7°C (44°F)11°C (53°F)
Wind
Speed19km/h (12mph)23km/h (14mph)25km/h (15mph)25km/h (15mph)15km/h (9mph)4km/h (2mph)7km/h (4mph)16km/h (10mph)
Gusts37km/h (23mph)37km/h (23mph)36km/h (23mph)34km/h (21mph)25km/h (15mph)7km/h (5mph)14km/h (9mph)27km/h (17mph)
Direction 330°
NNW

N
26°
NNE
41°
NE
58°
ENE
80°
E
87°
E
129°
SE
Wind chill18°C (65°F)17°C (63°F)13°C (55°F)13°C (55°F)16°C (61°F)17°C (63°F)16°C (60°F)17°C (62°F)
Waves
Height0.5m (1.6ft)0.5m (1.5ft)0.4m (1.3ft)0.3m (1.1ft)0.2m (0.8ft)0.3m (0.9ft)0.1m (0.4ft)0.2m (0.6ft)
Direction 12°
NNE
33°
NNE
43°
NE
53°
NE
65°
ENE
74°
ENE
89°
E
105°
ESE
Period4.7 sec.4.7 sec.4.7 sec.4.7 sec.4.7 sec.4.7 sec.4.7 sec.4.7 sec.
Significant height1.5m (4.9ft)1.3m (4.3ft)1.0m (3.3ft)0.9m (3ft)0.5m (1.6ft)0.2m (0.7ft)0.2m (0.7ft)0.6m (2ft)
Sea water temperature
Water temperature15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 06:58 and will set at 17:12 on the beach(es) of Marsh Island. The outside temperature will be a high of 67°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 14.3mph km/h (with gusts up to 23.6mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)19°C (66°F)19°C (66°F)18°C (65°F)19°C (66°F)
Perceived temperature16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)19°C (66°F)19°C (66°F)18°C (65°F)19°C (66°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%86%89%89%86%88%95%94%
Barometric pressure1019 hPa1018 hPa1017 hPa1018 hPa1017 hPa1015 hPa1015 hPa1015 hPa
Cloud cover3%86%88%25%47%47%35%71%
Heat index16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)19°C (66°F)19°C (66°F)18°C (65°F)19°C (66°F)
Dew point13°C (55°F)14°C (57°F)15°C (59°F)16°C (61°F)17°C (62°F)17°C (62°F)18°C (64°F)18°C (65°F)
Wind
Speed21km/h (13mph)22km/h (13mph)19km/h (12mph)19km/h (12mph)20km/h (12mph)23km/h (14mph)21km/h (13mph)21km/h (13mph)
Gusts34km/h (21mph)38km/h (24mph)26km/h (16mph)21km/h (13mph)25km/h (16mph)29km/h (18mph)22km/h (14mph)27km/h (17mph)
Direction 125°
SE
120°
ESE
117°
ESE
129°
SE
156°
SSE
162°
SSE
160°
SSE
163°
SSE
Wind chill16°C (61°F)16°C (61°F)17°C (62°F)18°C (64°F)19°C (66°F)19°C (66°F)18°C (65°F)19°C (66°F)
Waves
Height0.3m (1.1ft)0.3m (1.0ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (1.1ft)0.3m (1.0ft)
Direction 131°
SE
136°
SE
131°
SE
139°
SE
151°
SSE
158°
SSE
157°
SSE
181°
S
Period4.7 sec.4.7 sec.4.7 sec.4.7 sec.4.7 sec.4.7 sec.4.7 sec.4.7 sec.
Significant height0.8m (2.6ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)15°C (58°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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