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
Saturday 13 December 202563°F to 68°Frecommended
Sunday 14 December 202545°F to 67°Fnot recommended
Monday 15 December 202545°F to 54°Fdiscouraged
Tuesday 16 December 202554°F to 63°Frecommended
Wednesday 17 December 202565°F to 68°Fdiscouraged
Thursday 18 December 202567°F to 68°Fdiscouraged
Friday 19 December 202567°F to 68°Frecommended

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

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 06:45 and will set at 17:01 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 7.5mph km/h (with gusts up to 13.7mph). Wave height will be up to 1ft 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)19°C (67°F)20°C (68°F)19°C (67°F)18°C (64°F)19°C (67°F)
Perceived temperature20°C (67°F)20°C (67°F)20°C (67°F)19°C (67°F)20°C (68°F)19°C (67°F)18°C (64°F)19°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%87%88%85%81%82%87%87%
Barometric pressure1019 hPa1019 hPa1019 hPa1020 hPa1019 hPa1017 hPa1018 hPa1019 hPa
Cloud cover76%91%77%29%12%5%3%6%
Heat index20°C (67°F)20°C (67°F)20°C (67°F)19°C (67°F)20°C (68°F)19°C (67°F)18°C (64°F)19°C (67°F)
Dew point17°C (62°F)17°C (63°F)18°C (64°F)17°C (62°F)16°C (61°F)16°C (61°F)15°C (60°F)17°C (63°F)
Wind
Speed12km/h (7mph)10km/h (6mph)11km/h (7mph)11km/h (7mph)10km/h (6mph)8km/h (5mph)6km/h (4mph)8km/h (5mph)
Gusts22km/h (14mph)20km/h (12mph)20km/h (13mph)18km/h (11mph)18km/h (11mph)16km/h (10mph)12km/h (8mph)15km/h (9mph)
Direction 167°
SSE
169°
SSE
152°
SSE
82°
E
161°
SSE
164°
SSE
128°
SE
135°
SE
Wind chill20°C (67°F)20°C (67°F)20°C (67°F)19°C (67°F)20°C (68°F)19°C (67°F)18°C (64°F)19°C (67°F)
Waves
Height0.3m (0.9ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.6ft)0.1m (0.5ft)0.2m (0.5ft)0.2m (0.6ft)
Direction 168°
SSE
180°
S
198°
SSW
207°
SSW
232°
SW
231°
SW
205°
SSW
178°
S
Period3.6 sec.3.7 sec.4.3 sec.3.1 sec.3.2 sec.4.4 sec.4.4 sec.4.3 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)
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 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 67°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! Be careful, the sea will be generally rough with a wind speed of up to 25.5mph km/h (with gusts up to 31.7mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)19°C (67°F)18°C (65°F)17°C (63°F)14°C (57°F)12°C (54°F)8°C (47°F)10°C (50°F)
Perceived temperature19°C (67°F)19°C (67°F)18°C (65°F)17°C (63°F)11°C (52°F)9°C (49°F)4°C (39°F)6°C (43°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%90%92%88%76%63%54%56%
Barometric pressure1019 hPa1019 hPa1021 hPa1024 hPa1025 hPa1026 hPa1027 hPa1029 hPa
Cloud cover15%32%41%100%65%5%0%0%
Heat index19°C (67°F)19°C (67°F)18°C (65°F)17°C (63°F)14°C (57°F)12°C (54°F)8°C (47°F)10°C (50°F)
Dew point18°C (64°F)18°C (64°F)17°C (62°F)15°C (60°F)10°C (49°F)6°C (42°F)-1°C (31°F)2°C (35°F)
Wind
Speed6km/h (4mph)6km/h (4mph)16km/h (10mph)37km/h (23mph)41km/h (25mph)39km/h (24mph)37km/h (23mph)40km/h (25mph)
Gusts13km/h (8mph)13km/h (8mph)30km/h (19mph)49km/h (30mph)51km/h (31mph)43km/h (27mph)44km/h (27mph)51km/h (32mph)
Direction 166°
SSE
244°
WSW
343°
NNW
18°
NNE
24°
NNE
22°
NNE
24°
NNE
32°
NNE
Wind chill19°C (67°F)19°C (67°F)18°C (65°F)17°C (63°F)11°C (52°F)9°C (49°F)4°C (39°F)6°C (43°F)
Waves
Height0.2m (0.6ft)0.2m (0.6ft)0.2m (0.7ft)0.5m (1.5ft)0.9m (3.1ft)0.9m (3.1ft)0.9m (3.1ft)1.0m (3.2ft)
Direction 175°
S
181°
S
186°
S
359°
N
25°
NNE
22°
NNE
19°
NNE
21°
NNE
Period4.3 sec.4.2 sec.4.1 sec.4.1 sec.4.5 sec.4.9 sec.7.4 sec.6.9 sec.
Significant height0.3m (1ft)0.2m (0.7ft)0.4m (1.3ft)1.1m (3.6ft)1.5m (4.9ft)1.5m (4.9ft)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 21.1mph km/h (with gusts up to 26.1mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)8°C (47°F)8°C (46°F)10°C (49°F)9°C (48°F)8°C (47°F)7°C (44°F)12°C (53°F)
Perceived temperature5°C (40°F)4°C (40°F)4°C (40°F)7°C (44°F)6°C (43°F)5°C (41°F)4°C (38°F)10°C (50°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity58%59%63%60%56%60%74%73%
Barometric pressure1029 hPa1029 hPa1029 hPa1030 hPa1028 hPa1026 hPa1026 hPa1026 hPa
Cloud cover0%0%0%0%0%0%0%0%
Heat index9°C (48°F)8°C (47°F)8°C (46°F)10°C (49°F)9°C (48°F)8°C (47°F)7°C (44°F)12°C (53°F)
Dew point1°C (33°F)1°C (33°F)1°C (34°F)2°C (36°F)1°C (33°F)1°C (34°F)3°C (37°F)7°C (44°F)
Wind
Speed34km/h (21mph)29km/h (18mph)23km/h (14mph)22km/h (14mph)21km/h (13mph)21km/h (13mph)19km/h (12mph)13km/h (8mph)
Gusts42km/h (26mph)37km/h (23mph)31km/h (19mph)27km/h (17mph)37km/h (23mph)26km/h (16mph)24km/h (15mph)19km/h (12mph)
Direction 40°
NE
39°
NE
38°
NE
45°
NE
40°
NE
47°
NE
52°
NE
60°
ENE
Wind chill5°C (40°F)4°C (40°F)4°C (40°F)7°C (44°F)6°C (43°F)5°C (41°F)4°C (38°F)10°C (50°F)
Waves
Height0.9m (2.9ft)0.8m (2.6ft)0.6m (1.9ft)0.5m (1.5ft)0.4m (1.3ft)0.4m (1.4ft)0.3m (1.1ft)0.3m (1.0ft)
Direction 27°
NNE
37°
NE
39°
NE
42°
NE
43°
NE
40°
NE
41°
NE
51°
NE
Period7.1 sec.7.3 sec.7.3 sec.5.7 sec.5.6 sec.5.5 sec.5.5 sec.5.4 sec.
Significant height1.4m (4.6ft)1.1m (3.6ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)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 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 11.2mph km/h (with gusts up to 17.4mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)13°C (55°F)13°C (56°F)15°C (59°F)17°C (63°F)17°C (62°F)16°C (62°F)17°C (62°F)
Perceived temperature11°C (52°F)12°C (53°F)12°C (54°F)15°C (59°F)17°C (63°F)17°C (62°F)16°C (62°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%75%76%73%67%69%75%78%
Barometric pressure1025 hPa1024 hPa1023 hPa1025 hPa1023 hPa1021 hPa1021 hPa1022 hPa
Cloud cover22%47%10%20%14%15%21%8%
Heat index12°C (54°F)13°C (55°F)13°C (56°F)15°C (59°F)17°C (63°F)17°C (62°F)16°C (62°F)17°C (62°F)
Dew point8°C (46°F)8°C (47°F)9°C (48°F)10°C (51°F)11°C (52°F)11°C (52°F)12°C (54°F)13°C (56°F)
Wind
Speed9km/h (6mph)10km/h (6mph)12km/h (7mph)12km/h (7mph)14km/h (9mph)18km/h (11mph)15km/h (9mph)13km/h (8mph)
Gusts14km/h (9mph)16km/h (10mph)18km/h (11mph)16km/h (10mph)20km/h (13mph)28km/h (17mph)26km/h (16mph)22km/h (13mph)
Direction 73°
ENE
63°
ENE
62°
ENE
62°
ENE
112°
ESE
131°
SE
107°
ESE
110°
ESE
Wind chill11°C (52°F)12°C (53°F)12°C (54°F)15°C (59°F)17°C (63°F)17°C (62°F)16°C (62°F)17°C (62°F)
Waves
Height0.2m (0.6ft)0.2m (0.5ft)0.2m (0.5ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.8ft)0.3m (0.9ft)0.2m (0.8ft)
Direction 64°
ENE
67°
ENE
66°
ENE
79°
ENE
104°
ESE
126°
SE
117°
ESE
102°
ESE
Period3.4 sec.5.5 sec.3.9 sec.3.8 sec.5.6 sec.5.5 sec.5.4 sec.5.3 sec.
Significant height0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)
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 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 13.1mph km/h (with gusts up to 23.6mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature18°C (64°F)18°C (64°F)18°C (64°F)19°C (66°F)20°C (68°F)20°C (67°F)19°C (67°F)19°C (67°F)
Perceived temperature18°C (64°F)18°C (64°F)18°C (64°F)19°C (66°F)20°C (68°F)20°C (67°F)19°C (67°F)19°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%82%84%80%76%82%83%86%
Barometric pressure1021 hPa1020 hPa1020 hPa1021 hPa1019 hPa1018 hPa1018 hPa1019 hPa
Cloud cover24%53%100%35%28%65%100%46%
Heat index18°C (64°F)18°C (64°F)18°C (64°F)19°C (66°F)20°C (68°F)20°C (67°F)19°C (67°F)19°C (67°F)
Dew point14°C (57°F)14°C (58°F)15°C (59°F)16°C (60°F)16°C (60°F)16°C (62°F)16°C (62°F)17°C (62°F)
Wind
Speed9km/h (6mph)9km/h (6mph)9km/h (6mph)14km/h (9mph)17km/h (10mph)17km/h (10mph)17km/h (11mph)21km/h (13mph)
Gusts16km/h (10mph)16km/h (10mph)16km/h (10mph)24km/h (15mph)29km/h (18mph)30km/h (19mph)33km/h (20mph)38km/h (23mph)
Direction 125°
SE
102°
ESE
87°
E
93°
E
137°
SE
136°
SE
111°
ESE
123°
ESE
Wind chill18°C (64°F)18°C (64°F)18°C (64°F)19°C (66°F)20°C (68°F)20°C (67°F)19°C (67°F)19°C (67°F)
Waves
Height0.2m (0.8ft)0.2m (0.7ft)0.2m (0.8ft)0.2m (0.8ft)0.2m (0.8ft)0.3m (0.9ft)0.4m (1.3ft)0.5m (1.6ft)
Direction 135°
SE
146°
SSE
149°
SSE
154°
SSE
157°
SSE
147°
SSE
149°
SSE
140°
SE
Period5.2 sec.5.2 sec.3.9 sec.4.0 sec.4.3 sec.7.0 sec.7.0 sec.7.0 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.7m (2.3ft)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 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 13.1mph km/h (with gusts up to 22.4mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)20°C (67°F)20°C (67°F)20°C (69°F)20°C (69°F)20°C (68°F)19°C (67°F)20°C (67°F)
Perceived temperature19°C (67°F)20°C (67°F)20°C (67°F)20°C (69°F)20°C (69°F)20°C (68°F)19°C (67°F)20°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity87%89%91%90%89%91%94%95%
Barometric pressure1018 hPa1017 hPa1017 hPa1019 hPa1018 hPa1017 hPa1018 hPa1019 hPa
Cloud cover27%21%68%95%67%27%25%21%
Heat index19°C (67°F)20°C (67°F)20°C (67°F)20°C (69°F)20°C (69°F)20°C (68°F)19°C (67°F)20°C (67°F)
Dew point17°C (63°F)18°C (64°F)18°C (64°F)19°C (65°F)19°C (65°F)18°C (65°F)18°C (65°F)19°C (66°F)
Wind
Speed21km/h (13mph)17km/h (11mph)17km/h (10mph)18km/h (11mph)21km/h (13mph)18km/h (11mph)14km/h (9mph)10km/h (6mph)
Gusts27km/h (17mph)34km/h (21mph)34km/h (21mph)36km/h (23mph)24km/h (15mph)24km/h (15mph)29km/h (18mph)22km/h (14mph)
Direction 137°
SE
141°
SE
144°
SE
146°
SSE
165°
SSE
174°
S
172°
S
199°
SSW
Wind chill19°C (67°F)20°C (67°F)20°C (67°F)20°C (69°F)20°C (69°F)20°C (68°F)19°C (67°F)20°C (67°F)
Waves
Height0.5m (1.7ft)0.6m (1.9ft)0.6m (1.9ft)0.6m (1.9ft)0.6m (2.1ft)0.6m (2.1ft)0.6m (2.1ft)0.6m (1.9ft)
Direction 154°
SSE
156°
SSE
157°
SSE
159°
SSE
164°
SSE
163°
SSE
163°
SSE
167°
SSE
Period7.0 sec.7.0 sec.7.0 sec.5.9 sec.5.9 sec.6.8 sec.6.8 sec.6.0 sec.
Significant height0.6m (2ft)0.7m (2.3ft)0.5m (1.6ft)0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)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 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 8.7mph km/h (with gusts up to 18mph). 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)19°C (66°F)19°C (65°F)20°C (67°F)20°C (69°F)20°C (68°F)19°C (66°F)19°C (67°F)
Perceived temperature20°C (67°F)19°C (66°F)19°C (65°F)20°C (67°F)20°C (69°F)20°C (68°F)19°C (66°F)19°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity96%96%97%92%86%84%93%96%
Barometric pressure1019 hPa1019 hPa1020 hPa1022 hPa1021 hPa1019 hPa1020 hPa1021 hPa
Cloud cover28%26%30%31%38%9%37%36%
Heat index20°C (67°F)19°C (66°F)19°C (65°F)20°C (67°F)20°C (69°F)20°C (68°F)19°C (66°F)19°C (67°F)
Dew point19°C (66°F)18°C (65°F)18°C (64°F)18°C (65°F)18°C (64°F)17°C (63°F)18°C (64°F)19°C (65°F)
Wind
Speed8km/h (5mph)9km/h (6mph)8km/h (5mph)10km/h (6mph)11km/h (7mph)7km/h (4mph)11km/h (7mph)14km/h (9mph)
Gusts17km/h (11mph)19km/h (12mph)15km/h (10mph)18km/h (11mph)18km/h (11mph)14km/h (9mph)21km/h (13mph)29km/h (18mph)
Direction 253°
WSW
322°
NW

N
27°
NNE
57°
ENE
93°
E
80°
E
109°
ESE
Wind chill20°C (67°F)19°C (66°F)19°C (65°F)20°C (67°F)20°C (69°F)20°C (68°F)19°C (66°F)19°C (67°F)
Waves
Height0.6m (1.8ft)0.5m (1.6ft)0.5m (1.5ft)0.4m (1.4ft)0.4m (1.4ft)0.4m (1.5ft)0.4m (1.4ft)0.4m (1.2ft)
Direction 171°
S
169°
SSE
173°
S
168°
SSE
165°
SSE
172°
S
167°
SSE
175°
S
Period6.0 sec.4.7 sec.5.8 sec.6.0 sec.5.7 sec.4.6 sec.6.2 sec.6.2 sec.
Significant height1.0m (3.3ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)
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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