Sea weather in Kauai (Garden Isle) in Hawaii All the beach weather in Kauai (Garden Isle)

All the essential weather information for enjoying the beach in Kauai (Garden Isle) in Hawaii, 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 Kauai (Garden Isle) over the next 7 days?

Discover the best moment to go to the beach in Kauai (Garden Isle) in Hawaii this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Kauai (Garden Isle). 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 202570°F to 77°Fdiscouraged
Sunday 14 December 202574°F to 76°Fdiscouraged
Monday 15 December 202574°F to 76°Fdiscouraged
Tuesday 16 December 202572°F to 77°Fdiscouraged
Wednesday 17 December 202576°F to 77°Fdiscouraged
Thursday 18 December 202576°F to 77°Fdiscouraged
Friday 19 December 202574°F to 77°Frecommended

Sea Weather: Your daily and hourly sea weather in Kauai (Garden Isle)

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 07:08 and will set at 17:56 on the beach(es) of Kauai (Garden Isle). The outside temperature will be a high of 77°F t and a low of 70°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 21.8mph km/h (with gusts up to 31.7mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (73°F)23°C (73°F)24°C (75°F)24°C (76°F)21°C (71°F)25°C (77°F)24°C (75°F)24°C (76°F)
Perceived temperature25°C (77°F)25°C (77°F)26°C (79°F)26°C (79°F)21°C (71°F)27°C (80°F)26°C (79°F)26°C (79°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity74%79%80%77%74%75%80%81%
Barometric pressure1011 hPa1011 hPa1011 hPa1012 hPa1011 hPa1009 hPa1010 hPa1012 hPa
Cloud cover15%62%90%60%74%74%24%72%
Heat index25°C (77°F)25°C (77°F)26°C (79°F)26°C (79°F)24°C (76°F)27°C (80°F)26°C (79°F)26°C (79°F)
Dew point18°C (65°F)19°C (66°F)20°C (69°F)20°C (68°F)17°C (62°F)20°C (68°F)20°C (69°F)21°C (69°F)
Wind
Speed21km/h (13mph)22km/h (13mph)30km/h (19mph)35km/h (21mph)34km/h (21mph)34km/h (21mph)30km/h (19mph)28km/h (18mph)
Gusts30km/h (18mph)30km/h (19mph)41km/h (26mph)47km/h (29mph)41km/h (25mph)51km/h (32mph)48km/h (30mph)41km/h (26mph)
Direction 209°
SSW
218°
SW
200°
SSW
209°
SSW
220°
SW
220°
SW
227°
SW
233°
SW
Wind chill23°C (73°F)23°C (73°F)24°C (75°F)24°C (76°F)21°C (71°F)25°C (77°F)24°C (75°F)24°C (76°F)
Waves
Height1.4m (4.6ft)1.4m (4.7ft)1.4m (4.8ft)1.5m (4.9ft)1.6m (5.2ft)1.6m (5.2ft)1.5m (4.9ft)1.4m (4.6ft)
Direction 346°
NNW
349°
N
352°
N
354°
N
357°
N
358°
N
357°
N
359°
N
Period10.7 sec.10.4 sec.10.4 sec.10.4 sec.10.9 sec.10.9 sec.10.7 sec.10.3 sec.
Significant height0.8m (2.6ft)0.9m (3ft)0.9m (3ft)1.1m (3.6ft)1.3m (4.3ft)1.1m (3.6ft)1.1m (3.6ft)1.4m (4.6ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 07:08 and will set at 17:56 on the beach(es) of Kauai (Garden Isle). The outside temperature will be a high of 76°F t and a low of 74°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 14.9mph km/h (with gusts up to 21.8mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (75°F)23°C (74°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)23°C (74°F)23°C (74°F)
Perceived temperature26°C (79°F)25°C (78°F)26°C (78°F)26°C (79°F)26°C (78°F)26°C (78°F)25°C (77°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%86%79%75%73%73%77%79%
Barometric pressure1012 hPa1011 hPa1011 hPa1013 hPa1012 hPa1011 hPa1013 hPa1014 hPa
Cloud cover71%83%67%89%98%60%52%80%
Heat index26°C (79°F)25°C (78°F)26°C (78°F)26°C (79°F)26°C (78°F)26°C (78°F)25°C (77°F)25°C (77°F)
Dew point21°C (69°F)21°C (69°F)20°C (68°F)19°C (67°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (67°F)
Wind
Speed24km/h (15mph)11km/h (7mph)10km/h (6mph)8km/h (5mph)12km/h (7mph)13km/h (8mph)8km/h (5mph)5km/h (3mph)
Gusts35km/h (22mph)16km/h (10mph)15km/h (9mph)11km/h (7mph)17km/h (10mph)19km/h (12mph)12km/h (7mph)8km/h (5mph)
Direction 238°
WSW
267°
W
10°
N
349°
NNW
21°
NNE
41°
NE
63°
ENE
108°
ESE
Wind chill24°C (75°F)23°C (74°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)23°C (74°F)23°C (74°F)
Waves
Height1.3m (4.3ft)1.2m (3.9ft)1.2m (3.8ft)1.2m (4.0ft)1.4m (4.5ft)1.4m (4.6ft)1.4m (4.6ft)1.4m (4.8ft)
Direction
N

N
356°
N
348°
NNW
338°
NNW
330°
NNW
333°
NNW
341°
NNW
Period10.2 sec.10.1 sec.9.8 sec.9.7 sec.14.1 sec.13.4 sec.13.1 sec.13.1 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)0.8m (2.6ft)0.7m (2.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)0.6m (2ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 07:09 and will set at 17:57 on the beach(es) of Kauai (Garden Isle). The outside temperature will be a high of 76°F t and a low of 74°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 15.5mph km/h (with gusts up to 22.4mph). Wave height will be up to 7.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (74°F)24°C (75°F)23°C (74°F)23°C (73°F)24°C (75°F)24°C (75°F)23°C (74°F)24°C (76°F)
Perceived temperature25°C (78°F)26°C (78°F)25°C (78°F)25°C (77°F)26°C (78°F)26°C (78°F)25°C (78°F)26°C (80°F)
Precipitation0in0in0.1in0in0in0in0in0in
Humidity78%78%84%85%76%77%80%81%
Barometric pressure1014 hPa1013 hPa1014 hPa1015 hPa1014 hPa1013 hPa1013 hPa1015 hPa
Cloud cover62%68%89%65%80%88%76%29%
Heat index25°C (78°F)26°C (78°F)25°C (78°F)25°C (77°F)26°C (78°F)26°C (78°F)25°C (78°F)26°C (80°F)
Dew point19°C (67°F)20°C (67°F)20°C (69°F)20°C (69°F)20°C (67°F)20°C (67°F)20°C (68°F)21°C (70°F)
Wind
Speed5km/h (3mph)10km/h (6mph)16km/h (10mph)25km/h (15mph)22km/h (14mph)24km/h (15mph)22km/h (14mph)23km/h (15mph)
Gusts7km/h (4mph)14km/h (9mph)25km/h (15mph)33km/h (21mph)32km/h (20mph)36km/h (22mph)35km/h (22mph)34km/h (21mph)
Direction 154°
SSE
205°
SSW
211°
SSW
190°
S
194°
SSW
182°
S
187°
S
184°
S
Wind chill24°C (74°F)24°C (75°F)23°C (74°F)23°C (73°F)24°C (75°F)24°C (75°F)23°C (74°F)24°C (76°F)
Waves
Height1.6m (5.1ft)1.7m (5.6ft)1.8m (6.1ft)2.0m (6.6ft)2.2m (7.2ft)2.3m (7.5ft)2.2m (7.3ft)2.2m (7.3ft)
Direction 346°
NNW
352°
N
356°
N

N

N

N

N

N
Period12.9 sec.12.6 sec.12.5 sec.11.8 sec.13.4 sec.13.0 sec.13.6 sec.14.1 sec.
Significant height0.5m (1.6ft)0.8m (2.6ft)0.5m (1.6ft)0.8m (2.6ft)1.2m (3.9ft)1.0m (3.3ft)0.8m (2.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 07:09 and will set at 17:57 on the beach(es) of Kauai (Garden Isle). The outside temperature will be a high of 77°F t and a low of 72°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 28mph). Wave height will be up to 7.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (76°F)24°C (76°F)25°C (76°F)25°C (76°F)22°C (71°F)23°C (74°F)24°C (76°F)25°C (76°F)
Perceived temperature26°C (80°F)26°C (79°F)26°C (80°F)27°C (80°F)22°C (71°F)25°C (77°F)26°C (79°F)27°C (80°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%80%79%81%79%77%81%83%
Barometric pressure1015 hPa1014 hPa1014 hPa1015 hPa1014 hPa1012 hPa1013 hPa1014 hPa
Cloud cover53%52%87%73%81%79%70%87%
Heat index26°C (80°F)26°C (79°F)26°C (80°F)27°C (80°F)24°C (76°F)25°C (77°F)26°C (79°F)27°C (80°F)
Dew point21°C (70°F)21°C (69°F)21°C (69°F)21°C (70°F)18°C (64°F)19°C (66°F)21°C (69°F)22°C (71°F)
Wind
Speed23km/h (15mph)24km/h (15mph)26km/h (16mph)26km/h (16mph)26km/h (16mph)30km/h (19mph)27km/h (17mph)27km/h (17mph)
Gusts33km/h (21mph)33km/h (21mph)36km/h (22mph)35km/h (22mph)29km/h (18mph)37km/h (23mph)45km/h (28mph)39km/h (25mph)
Direction 189°
S
184°
S
184°
S
182°
S
194°
SSW
201°
SSW
203°
SSW
205°
SSW
Wind chill24°C (76°F)24°C (76°F)25°C (76°F)25°C (76°F)22°C (71°F)23°C (74°F)24°C (76°F)25°C (76°F)
Waves
Height2.2m (7.1ft)2.1m (6.9ft)2.0m (6.6ft)1.9m (6.3ft)1.9m (6.1ft)1.9m (6.1ft)1.8m (6.1ft)1.9m (6.1ft)
Direction
N

N

N

N

N

N

N

N
Period13.7 sec.13.5 sec.13.2 sec.12.8 sec.12.6 sec.12.3 sec.12.0 sec.11.9 sec.
Significant height1.0m (3.3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 07:10 and will set at 17:58 on the beach(es) of Kauai (Garden Isle). The outside temperature will be a high of 77°F t and a low of 76°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 30.5mph). Wave height will be up to 6.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (76°F)24°C (75°F)24°C (75°F)25°C (76°F)24°C (76°F)25°C (77°F)24°C (75°F)24°C (76°F)
Perceived temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (80°F)26°C (79°F)27°C (80°F)26°C (79°F)26°C (79°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%83%83%80%79%79%81%81%
Barometric pressure1014 hPa1012 hPa1012 hPa1013 hPa1012 hPa1010 hPa1011 hPa1012 hPa
Cloud cover84%80%76%81%87%82%86%50%
Heat index26°C (79°F)26°C (79°F)26°C (79°F)26°C (80°F)26°C (79°F)27°C (80°F)26°C (79°F)26°C (79°F)
Dew point21°C (70°F)21°C (70°F)21°C (69°F)21°C (69°F)20°C (69°F)21°C (69°F)20°C (69°F)21°C (70°F)
Wind
Speed23km/h (15mph)26km/h (16mph)25km/h (16mph)27km/h (17mph)32km/h (20mph)31km/h (19mph)26km/h (16mph)27km/h (17mph)
Gusts34km/h (21mph)37km/h (23mph)35km/h (22mph)37km/h (23mph)49km/h (31mph)46km/h (28mph)41km/h (25mph)38km/h (24mph)
Direction 214°
SW
214°
SSW
215°
SW
212°
SSW
209°
SSW
217°
SW
221°
SW
220°
SW
Wind chill24°C (76°F)24°C (75°F)24°C (75°F)25°C (76°F)24°C (76°F)25°C (77°F)24°C (75°F)24°C (76°F)
Waves
Height1.9m (6.2ft)1.8m (6.0ft)1.8m (5.8ft)1.7m (5.6ft)1.7m (5.6ft)2.0m (6.4ft)1.9m (6.4ft)1.9m (6.3ft)
Direction
N

N

N

N
359°
N
347°
NNW
348°
NNW
351°
N
Period11.7 sec.12.2 sec.13.4 sec.13.3 sec.13.1 sec.9.7 sec.9.5 sec.11.4 sec.
Significant height1.1m (3.6ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)1.1m (3.6ft)1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 07:11 and will set at 17:58 on the beach(es) of Kauai (Garden Isle). The outside temperature will be a high of 77°F t and a low of 76°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 26.1mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (76°F)24°C (75°F)24°C (75°F)24°C (76°F)25°C (76°F)24°C (76°F)24°C (75°F)24°C (75°F)
Perceived temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (80°F)26°C (79°F)26°C (79°F)26°C (79°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%82%81%79%78%78%80%81%
Barometric pressure1011 hPa1011 hPa1011 hPa1013 hPa1012 hPa1011 hPa1013 hPa1014 hPa
Cloud cover82%42%54%47%30%22%15%20%
Heat index26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (80°F)26°C (79°F)26°C (79°F)26°C (79°F)
Dew point21°C (70°F)21°C (69°F)21°C (69°F)21°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)21°C (69°F)
Wind
Speed27km/h (17mph)26km/h (16mph)25km/h (16mph)26km/h (16mph)27km/h (17mph)27km/h (17mph)23km/h (14mph)19km/h (12mph)
Gusts37km/h (23mph)36km/h (22mph)35km/h (22mph)36km/h (22mph)39km/h (24mph)42km/h (26mph)37km/h (23mph)28km/h (17mph)
Direction 222°
SW
221°
SW
219°
SW
215°
SW
211°
SSW
211°
SSW
215°
SW
217°
SW
Wind chill24°C (76°F)24°C (75°F)24°C (75°F)24°C (76°F)25°C (76°F)24°C (76°F)24°C (75°F)24°C (75°F)
Waves
Height1.9m (6.3ft)1.9m (6.2ft)1.8m (5.9ft)1.7m (5.6ft)1.7m (5.6ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)
Direction 353°
N
355°
N
353°
N
350°
N
345°
NNW
345°
NNW
348°
NNW
353°
N
Period12.0 sec.10.2 sec.8.1 sec.12.4 sec.12.4 sec.12.8 sec.12.6 sec.12.2 sec.
Significant height1.3m (4.3ft)1.3m (4.3ft)1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)0.9m (3ft)0.8m (2.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature23°C (74°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 07:11 and will set at 17:59 on the beach(es) of Kauai (Garden Isle). The outside temperature will be a high of 77°F t and a low of 74°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 18.6mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (75°F)24°C (75°F)24°C (75°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (75°F)
Perceived temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%83%80%80%78%78%79%82%
Barometric pressure1014 hPa1014 hPa1014 hPa1015 hPa1015 hPa1013 hPa1014 hPa1015 hPa
Cloud cover27%33%24%23%20%24%51%68%
Heat index26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)
Dew point21°C (69°F)21°C (70°F)21°C (69°F)21°C (69°F)20°C (69°F)20°C (68°F)20°C (69°F)20°C (69°F)
Wind
Speed19km/h (12mph)18km/h (11mph)16km/h (10mph)16km/h (10mph)19km/h (12mph)19km/h (12mph)15km/h (9mph)12km/h (7mph)
Gusts27km/h (17mph)25km/h (16mph)23km/h (14mph)23km/h (15mph)29km/h (18mph)30km/h (19mph)23km/h (14mph)18km/h (11mph)
Direction 216°
SW
209°
SSW
202°
SSW
197°
SSW
183°
S
183°
S
194°
SSW
203°
SSW
Wind chill24°C (75°F)24°C (75°F)24°C (75°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (75°F)
Waves
Height1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)
Direction 354°
N
353°
N
355°
N
355°
N
355°
N
355°
N
354°
N
353°
N
Period12.1 sec.12.1 sec.12.4 sec.12.4 sec.12.0 sec.11.9 sec.11.8 sec.11.7 sec.
Significant height1.0m (3.3ft)0.9m (3ft)0.7m (2.3ft)0.6m (2ft)0.8m (2.6ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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