Sea weather in Port Sulphur in Louisiana All the beach weather in Port Sulphur

All the essential weather information for enjoying the beach in Port Sulphur 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 Port Sulphur over the next 7 days?

Discover the best moment to go to the beach in Port Sulphur in Louisiana this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Port Sulphur. 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 202543°F to 68°Fnot recommended
Monday 15 December 202545°F to 54°Fdiscouraged
Tuesday 16 December 202554°F to 63°Frecommended
Wednesday 17 December 202563°F to 68°Frecommended
Thursday 18 December 202567°F to 68°Frecommended
Friday 19 December 202554°F to 67°Fdiscouraged
Saturday 20 December 202561°F to 68°Frecommended

Sea Weather: Your daily and hourly sea weather in Port Sulphur

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:45 and will set at 17:02 on the beach(es) of Port Sulphur. The outside temperature will be a high of 68°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 34.2mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (67°F)19°C (67°F)18°C (65°F)17°C (63°F)13°C (55°F)12°C (53°F)7°C (45°F)9°C (48°F)
Perceived temperature20°C (67°F)19°C (67°F)18°C (65°F)17°C (63°F)10°C (50°F)8°C (47°F)2°C (36°F)5°C (40°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity87%88%90%91%86%68%54%57%
Barometric pressure1019 hPa1019 hPa1021 hPa1023 hPa1025 hPa1025 hPa1028 hPa1029 hPa
Cloud cover14%8%43%100%98%24%0%0%
Heat index20°C (67°F)19°C (67°F)18°C (65°F)17°C (63°F)13°C (55°F)12°C (53°F)7°C (45°F)9°C (48°F)
Dew point17°C (63°F)17°C (63°F)17°C (62°F)16°C (60°F)11°C (51°F)6°C (43°F)-2°C (29°F)1°C (34°F)
Wind
Speed8km/h (5mph)4km/h (3mph)14km/h (9mph)34km/h (21mph)42km/h (26mph)41km/h (25mph)39km/h (24mph)40km/h (25mph)
Gusts15km/h (9mph)8km/h (5mph)26km/h (16mph)46km/h (29mph)55km/h (34mph)54km/h (34mph)39km/h (24mph)50km/h (31mph)
Direction 180°
S
285°
WNW
333°
NNW

N
16°
NNE
20°
NNE
20°
NNE
28°
NNE
Wind chill20°C (67°F)19°C (67°F)18°C (65°F)17°C (63°F)10°C (50°F)8°C (47°F)2°C (36°F)5°C (40°F)
Waves
Height0.2m (0.7ft)0.2m (0.7ft)0.3m (0.9ft)0.7m (2.3ft)0.9m (3.1ft)0.9m (3.1ft)0.9m (3.0ft)1.0m (3.1ft)
Direction 176°
S
169°
S
171°
S

N
16°
NNE
17°
NNE
17°
NNE
20°
NNE
Period4.4 sec.4.4 sec.4.4 sec.4.4 sec.4.7 sec.5.0 sec.7.4 sec.6.9 sec.
Significant height0.3m (1ft)0.3m (1ft)0.6m (2ft)1.4m (4.6ft)1.5m (4.9ft)1.4m (4.6ft)1.4m (4.6ft)1.5m (4.9ft)
Sea water temperature
Water temperature18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:46 and will set at 17:02 on the beach(es) of Port Sulphur. The outside temperature will be a high of 54°F t and a low of 45°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 22.4mph km/h (with gusts up to 26.7mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)7°C (45°F)7°C (45°F)9°C (47°F)8°C (46°F)8°C (46°F)9°C (49°F)11°C (51°F)
Perceived temperature3°C (38°F)3°C (37°F)3°C (38°F)5°C (42°F)4°C (40°F)4°C (39°F)7°C (45°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity59%62%66%64%62%64%74%75%
Barometric pressure1029 hPa1029 hPa1030 hPa1030 hPa1029 hPa1027 hPa1027 hPa1026 hPa
Cloud cover0%0%0%2%0%1%23%8%
Heat index8°C (46°F)7°C (45°F)7°C (45°F)9°C (47°F)8°C (46°F)8°C (46°F)9°C (49°F)11°C (51°F)
Dew point0°C (32°F)0°C (33°F)1°C (34°F)2°C (36°F)1°C (34°F)1°C (34°F)5°C (41°F)7°C (44°F)
Wind
Speed36km/h (22mph)30km/h (19mph)23km/h (14mph)21km/h (13mph)23km/h (15mph)21km/h (13mph)14km/h (9mph)15km/h (9mph)
Gusts43km/h (27mph)38km/h (23mph)30km/h (19mph)26km/h (16mph)41km/h (25mph)23km/h (14mph)23km/h (14mph)22km/h (14mph)
Direction 35°
NE
35°
NE
37°
NE
37°
NE
40°
NE
40°
NE
34°
NNE
43°
NE
Wind chill3°C (38°F)3°C (37°F)3°C (38°F)5°C (42°F)4°C (40°F)4°C (39°F)7°C (45°F)9°C (48°F)
Waves
Height0.9m (2.8ft)0.7m (2.4ft)0.5m (1.7ft)0.4m (1.4ft)0.4m (1.3ft)0.4m (1.2ft)0.3m (1.0ft)0.2m (0.6ft)
Direction 25°
NNE
36°
NE
42°
NE
43°
NE
40°
NE
40°
NE
41°
NE
48°
NE
Period7.0 sec.7.3 sec.6.1 sec.5.7 sec.5.6 sec.5.5 sec.5.5 sec.5.5 sec.
Significant height1.3m (4.3ft)1.1m (3.6ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)0.3m (1ft)
Sea water temperature
Water temperature18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:47 and will set at 17:03 on the beach(es) of Port Sulphur. The outside temperature will be a high of 63°F t and a low of 54°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 9.9mph km/h (with gusts up to 14.9mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (53°F)12°C (54°F)13°C (55°F)15°C (58°F)17°C (62°F)17°C (63°F)16°C (62°F)17°C (62°F)
Perceived temperature10°C (50°F)12°C (53°F)12°C (54°F)14°C (58°F)17°C (62°F)17°C (63°F)16°C (62°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity74%73%75%71%65%66%70%73%
Barometric pressure1024 hPa1024 hPa1023 hPa1024 hPa1022 hPa1020 hPa1021 hPa1021 hPa
Cloud cover9%30%32%25%17%23%100%100%
Heat index12°C (53°F)12°C (54°F)13°C (55°F)15°C (58°F)17°C (62°F)17°C (63°F)16°C (62°F)17°C (62°F)
Dew point7°C (45°F)8°C (46°F)9°C (47°F)10°C (49°F)10°C (50°F)11°C (51°F)11°C (52°F)12°C (53°F)
Wind
Speed15km/h (9mph)9km/h (6mph)10km/h (6mph)10km/h (6mph)12km/h (7mph)16km/h (10mph)15km/h (9mph)7km/h (4mph)
Gusts23km/h (14mph)15km/h (9mph)16km/h (10mph)14km/h (9mph)17km/h (11mph)24km/h (15mph)24km/h (15mph)12km/h (7mph)
Direction 63°
ENE
53°
NE
35°
NE
52°
NE
111°
ESE
117°
ESE
99°
E
108°
ESE
Wind chill10°C (50°F)12°C (53°F)12°C (54°F)14°C (58°F)17°C (62°F)17°C (63°F)16°C (62°F)17°C (62°F)
Waves
Height0.2m (0.6ft)0.2m (0.6ft)0.1m (0.4ft)0.1m (0.5ft)0.1m (0.4ft)0.2m (0.7ft)0.3m (1.0ft)0.3m (0.9ft)
Direction 56°
ENE
67°
ENE
136°
SE
131°
SE
131°
SE
117°
ESE
125°
SE
122°
ESE
Period5.7 sec.4.2 sec.4.2 sec.4.4 sec.5.7 sec.5.7 sec.5.7 sec.5.5 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)
Sea water temperature
Water temperature18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:47 and will set at 17:03 on the beach(es) of Port Sulphur. The outside temperature will be a high of 68°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 22.4mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (63°F)18°C (64°F)17°C (63°F)19°C (65°F)20°C (69°F)20°C (68°F)19°C (66°F)19°C (67°F)
Perceived temperature17°C (63°F)18°C (64°F)17°C (63°F)19°C (65°F)20°C (69°F)20°C (68°F)19°C (66°F)19°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%77%82%86%81%83%86%89%
Barometric pressure1020 hPa1019 hPa1019 hPa1020 hPa1018 hPa1016 hPa1016 hPa1017 hPa
Cloud cover46%52%71%76%65%60%26%36%
Heat index17°C (63°F)18°C (64°F)17°C (63°F)19°C (65°F)20°C (69°F)20°C (68°F)19°C (66°F)19°C (67°F)
Dew point13°C (56°F)13°C (56°F)14°C (58°F)16°C (61°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (63°F)
Wind
Speed4km/h (2mph)6km/h (4mph)12km/h (7mph)14km/h (9mph)12km/h (8mph)10km/h (6mph)18km/h (11mph)17km/h (11mph)
Gusts6km/h (4mph)10km/h (6mph)20km/h (13mph)23km/h (14mph)20km/h (12mph)19km/h (11mph)36km/h (22mph)32km/h (20mph)
Direction 182°
S
35°
NE
50°
NE
71°
ENE
117°
ESE
135°
SE
120°
ESE
132°
SE
Wind chill17°C (63°F)18°C (64°F)17°C (63°F)19°C (65°F)20°C (69°F)20°C (68°F)19°C (66°F)19°C (67°F)
Waves
Height0.2m (0.8ft)0.2m (0.6ft)0.2m (0.7ft)0.2m (0.8ft)0.2m (0.8ft)0.3m (1.1ft)0.4m (1.2ft)0.4m (1.5ft)
Direction 122°
ESE
154°
SSE
159°
SSE
165°
SSE
160°
SSE
147°
SSE
145°
SE
154°
SSE
Period5.4 sec.3.3 sec.3.3 sec.3.4 sec.5.5 sec.6.9 sec.6.9 sec.6.9 sec.
Significant height0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:48 and will set at 17:03 on the beach(es) of Port Sulphur. The outside temperature will be a high of 68°F t and a low of 67°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 23mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (67°F)20°C (67°F)20°C (67°F)20°C (68°F)20°C (68°F)20°C (68°F)19°C (66°F)20°C (67°F)
Perceived temperature20°C (67°F)20°C (67°F)20°C (67°F)20°C (68°F)20°C (68°F)20°C (68°F)19°C (66°F)20°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity89%89%92%91%89%92%96%95%
Barometric pressure1015 hPa1015 hPa1014 hPa1016 hPa1014 hPa1013 hPa1014 hPa1015 hPa
Cloud cover63%37%31%78%51%16%11%18%
Heat index20°C (67°F)20°C (67°F)20°C (67°F)20°C (68°F)20°C (68°F)20°C (68°F)19°C (66°F)20°C (67°F)
Dew point18°C (64°F)18°C (64°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (65°F)18°C (64°F)19°C (66°F)
Wind
Speed19km/h (12mph)18km/h (11mph)20km/h (13mph)16km/h (10mph)18km/h (11mph)13km/h (8mph)11km/h (7mph)14km/h (9mph)
Gusts37km/h (23mph)34km/h (21mph)24km/h (15mph)33km/h (21mph)24km/h (15mph)26km/h (16mph)23km/h (15mph)29km/h (18mph)
Direction 140°
SE
137°
SE
144°
SE
178°
S
179°
S
208°
SSW
216°
SW
255°
WSW
Wind chill20°C (67°F)20°C (67°F)20°C (67°F)20°C (68°F)20°C (68°F)20°C (68°F)19°C (66°F)20°C (67°F)
Waves
Height0.5m (1.6ft)0.6m (1.9ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.1ft)0.6m (1.9ft)0.6m (1.8ft)
Direction 159°
SSE
165°
SSE
156°
SSE
157°
SSE
160°
SSE
159°
SSE
157°
SSE
155°
SSE
Period6.9 sec.6.9 sec.6.9 sec.6.9 sec.6.9 sec.6.7 sec.6.6 sec.6.5 sec.
Significant height0.6m (2ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 06:48 and will set at 17:04 on the beach(es) of Port Sulphur. The outside temperature will be a high of 67°F t and a low of 54°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 18mph km/h (with gusts up to 23.6mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (66°F)19°C (65°F)18°C (64°F)17°C (62°F)16°C (60°F)14°C (58°F)12°C (53°F)16°C (61°F)
Perceived temperature19°C (66°F)19°C (65°F)18°C (64°F)17°C (62°F)16°C (60°F)13°C (55°F)10°C (50°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity96%95%90%72%68%58%62%61%
Barometric pressure1016 hPa1017 hPa1019 hPa1021 hPa1020 hPa1019 hPa1020 hPa1021 hPa
Cloud cover24%31%20%2%2%0%0%17%
Heat index19°C (66°F)19°C (65°F)18°C (64°F)17°C (62°F)16°C (60°F)14°C (58°F)12°C (53°F)16°C (61°F)
Dew point18°C (65°F)18°C (64°F)16°C (60°F)11°C (53°F)10°C (50°F)6°C (43°F)5°C (41°F)8°C (47°F)
Wind
Speed15km/h (9mph)13km/h (8mph)24km/h (15mph)29km/h (18mph)21km/h (13mph)20km/h (12mph)19km/h (12mph)15km/h (9mph)
Gusts30km/h (18mph)24km/h (15mph)36km/h (22mph)38km/h (24mph)25km/h (16mph)24km/h (15mph)24km/h (15mph)24km/h (15mph)
Direction 284°
WNW
312°
NW
10°
N
28°
NNE
43°
NE
55°
NE
61°
ENE
84°
E
Wind chill19°C (66°F)19°C (65°F)18°C (64°F)17°C (62°F)16°C (60°F)13°C (55°F)10°C (50°F)16°C (61°F)
Waves
Height0.5m (1.7ft)0.5m (1.7ft)0.7m (2.4ft)0.7m (2.4ft)0.6m (1.9ft)0.5m (1.5ft)0.4m (1.4ft)0.4m (1.2ft)
Direction 153°
SSE
152°
SSE
33°
NNE
39°
NE
42°
NE
49°
NE
53°
NE
67°
ENE
Period4.2 sec.4.3 sec.6.4 sec.6.4 sec.6.5 sec.6.5 sec.6.5 sec.6.4 sec.
Significant height0.7m (2.3ft)0.9m (3ft)1.2m (3.9ft)1.1m (3.6ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 06:49 and will set at 17:04 on the beach(es) of Port Sulphur. The outside temperature will be a high of 68°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 11.8mph km/h (with gusts up to 20.5mph). 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)17°C (62°F)18°C (64°F)19°C (67°F)20°C (67°F)20°C (68°F)19°C (67°F)20°C (68°F)
Perceived temperature16°C (61°F)17°C (62°F)18°C (64°F)19°C (67°F)20°C (67°F)20°C (68°F)19°C (67°F)20°C (68°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%72%80%83%87%85%90%94%
Barometric pressure1020 hPa1019 hPa1019 hPa1020 hPa1018 hPa1016 hPa1017 hPa1017 hPa
Cloud cover1%3%35%76%97%40%67%54%
Heat index16°C (61°F)17°C (62°F)18°C (64°F)19°C (67°F)20°C (67°F)20°C (68°F)19°C (67°F)20°C (68°F)
Dew point10°C (49°F)12°C (53°F)14°C (58°F)17°C (62°F)17°C (63°F)17°C (63°F)18°C (64°F)19°C (66°F)
Wind
Speed13km/h (8mph)11km/h (7mph)12km/h (8mph)14km/h (9mph)14km/h (9mph)17km/h (10mph)17km/h (11mph)19km/h (12mph)
Gusts21km/h (13mph)19km/h (12mph)22km/h (13mph)23km/h (14mph)24km/h (15mph)33km/h (21mph)17km/h (11mph)22km/h (13mph)
Direction 99°
E
99°
E
114°
ESE
137°
SE
140°
SE
146°
SSE
132°
SE
150°
SSE
Wind chill16°C (61°F)17°C (62°F)18°C (64°F)19°C (67°F)20°C (67°F)20°C (68°F)19°C (67°F)20°C (68°F)
Waves
Height0.3m (1.0ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (1.1ft)0.4m (1.5ft)
Direction 85°
E
151°
SSE
151°
SSE
156°
SSE
159°
SSE
162°
SSE
164°
SSE
168°
SSE
Period6.2 sec.6.0 sec.5.8 sec.5.6 sec.5.5 sec.5.4 sec.5.4 sec.5.4 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.6m (2ft)0.7m (2.3ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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