Sea weather in Kapaau in Hawaii All the beach weather in Kapaau

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

Discover the best moment to go to the beach in Kapaau in Hawaii this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Kapaau. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Thursday 4 December 202572°F to 76°Fdiscouraged
Friday 5 December 202572°F to 76°Fdiscouraged
Saturday 6 December 202570°F to 74°Fdiscouraged
Sunday 7 December 202565°F to 74°Fdiscouraged
Monday 8 December 202570°F to 74°Fdiscouraged
Tuesday 9 December 202570°F to 74°Fdiscouraged
Wednesday 10 December 202570°F to 74°Frecommended

Sea Weather: Your daily and hourly sea weather in Kapaau

Sea weather on Thursday 4 December 2025

On Thursday 4 December 2025, the sun will rise at 06:45 and will set at 17:43 on the beach(es) of Kapaau. The outside temperature will be a high of 76°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 19.3mph km/h (with gusts up to 28mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (73°F)22°C (71°F)22°C (71°F)24°C (74°F)23°C (74°F)23°C (73°F)22°C (71°F)23°C (73°F)
Perceived temperature25°C (77°F)22°C (71°F)22°C (71°F)25°C (77°F)25°C (77°F)25°C (77°F)22°C (71°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%77%74%66%66%72%77%81%
Barometric pressure1015 hPa1014 hPa1015 hPa1016 hPa1015 hPa1013 hPa1015 hPa1018 hPa
Cloud cover83%82%8%5%5%4%5%74%
Heat index25°C (77°F)25°C (76°F)25°C (76°F)25°C (77°F)25°C (77°F)25°C (77°F)24°C (76°F)25°C (77°F)
Dew point18°C (65°F)18°C (64°F)17°C (63°F)17°C (62°F)17°C (62°F)17°C (63°F)17°C (63°F)19°C (67°F)
Wind
Speed15km/h (9mph)10km/h (6mph)12km/h (7mph)13km/h (8mph)21km/h (13mph)31km/h (19mph)31km/h (19mph)31km/h (19mph)
Gusts21km/h (13mph)16km/h (10mph)19km/h (12mph)16km/h (10mph)30km/h (19mph)32km/h (20mph)36km/h (22mph)45km/h (28mph)
Direction 93°
E
116°
ESE
120°
ESE
100°
E
88°
E
78°
ENE
80°
E
90°
E
Wind chill23°C (73°F)22°C (71°F)22°C (71°F)24°C (74°F)23°C (74°F)23°C (73°F)22°C (71°F)23°C (73°F)
Waves
Height1.0m (3.2ft)1.1m (3.5ft)1.1m (3.6ft)1.2m (3.8ft)1.5m (4.8ft)1.8m (5.9ft)1.8m (6.0ft)1.8m (5.8ft)
Direction 326°
NW
324°
NW
323°
NW
243°
WSW
135°
SE
99°
E
92°
E
93°
E
Period12.1 sec.11.8 sec.11.6 sec.11.4 sec.11.2 sec.11.9 sec.13.1 sec.13.0 sec.
Significant height0.8m (2.6ft)0.6m (2ft)0.6m (2ft)0.8m (2.6ft)1.3m (4.3ft)1.5m (4.9ft)1.4m (4.6ft)1.3m (4.3ft)
Sea water temperature
Water temperature25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)

Sea weather on Friday 5 December 2025

On Friday 5 December 2025, the sun will rise at 06:45 and will set at 17:44 on the beach(es) of Kapaau. The outside temperature will be a high of 76°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 21.1mph km/h (with gusts up to 29.2mph). Wave height will be up to 7.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature22°C (72°F)22°C (72°F)22°C (72°F)23°C (74°F)23°C (74°F)23°C (73°F)22°C (72°F)22°C (72°F)
Perceived temperature25°C (76°F)25°C (76°F)25°C (76°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (76°F)25°C (76°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%79%80%74%75%77%80%81%
Barometric pressure1017 hPa1017 hPa1016 hPa1017 hPa1016 hPa1015 hPa1016 hPa1018 hPa
Cloud cover76%26%12%10%83%83%83%55%
Heat index25°C (76°F)25°C (76°F)25°C (76°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (76°F)25°C (76°F)
Dew point19°C (66°F)18°C (65°F)18°C (65°F)18°C (65°F)19°C (65°F)19°C (66°F)19°C (65°F)19°C (66°F)
Wind
Speed33km/h (21mph)30km/h (18mph)32km/h (20mph)34km/h (21mph)27km/h (17mph)29km/h (18mph)28km/h (18mph)31km/h (19mph)
Gusts47km/h (29mph)42km/h (26mph)46km/h (29mph)43km/h (27mph)35km/h (22mph)40km/h (25mph)42km/h (26mph)44km/h (28mph)
Direction 91°
E
98°
E
92°
E
83°
E
73°
ENE
80°
E
85°
E
85°
E
Wind chill22°C (72°F)22°C (72°F)22°C (72°F)23°C (74°F)23°C (74°F)23°C (73°F)22°C (72°F)22°C (72°F)
Waves
Height1.8m (5.8ft)2.0m (6.5ft)2.0m (6.5ft)2.1m (6.9ft)2.3m (7.6ft)2.4m (8.0ft)2.4m (7.9ft)2.3m (7.6ft)
Direction 92°
E
89°
E
87°
E
83°
E
81°
E
164°
SSE
277°
W
316°
NW
Period12.9 sec.13.9 sec.13.8 sec.14.6 sec.15.6 sec.15.9 sec.16.0 sec.15.8 sec.
Significant height1.3m (4.3ft)1.6m (5.2ft)1.5m (4.9ft)1.6m (5.2ft)1.8m (5.9ft)1.8m (5.9ft)1.6m (5.2ft)1.4m (4.6ft)
Sea water temperature
Water temperature25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)

Sea weather on Saturday 6 December 2025

On Saturday 6 December 2025, the sun will rise at 06:46 and will set at 17:44 on the beach(es) of Kapaau. The outside temperature will be a high of 74°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 16.8mph km/h (with gusts up to 22.4mph). Wave height will be up to 7.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature22°C (72°F)22°C (71°F)22°C (71°F)23°C (73°F)22°C (72°F)21°C (70°F)22°C (71°F)22°C (71°F)
Perceived temperature25°C (76°F)22°C (71°F)22°C (71°F)25°C (77°F)25°C (76°F)21°C (70°F)22°C (71°F)22°C (71°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%81%77%70%59%65%77%77%
Barometric pressure1018 hPa1017 hPa1017 hPa1018 hPa1015 hPa1014 hPa1016 hPa1017 hPa
Cloud cover53%83%52%8%0%75%74%72%
Heat index25°C (76°F)24°C (76°F)24°C (76°F)25°C (77°F)25°C (76°F)21°C (70°F)24°C (76°F)24°C (76°F)
Dew point19°C (66°F)19°C (65°F)18°C (64°F)17°C (63°F)14°C (57°F)14°C (57°F)17°C (63°F)18°C (64°F)
Wind
Speed26km/h (16mph)23km/h (14mph)23km/h (14mph)26km/h (16mph)27km/h (17mph)23km/h (14mph)19km/h (12mph)18km/h (11mph)
Gusts36km/h (22mph)32km/h (20mph)33km/h (20mph)33km/h (21mph)28km/h (18mph)29km/h (18mph)31km/h (19mph)27km/h (17mph)
Direction 91°
E
92°
E
87°
E
81°
E
77°
ENE
82°
E
90°
E
96°
E
Wind chill22°C (72°F)22°C (71°F)22°C (71°F)23°C (73°F)22°C (72°F)21°C (70°F)22°C (71°F)22°C (71°F)
Waves
Height2.2m (7.1ft)2.0m (6.6ft)1.9m (6.4ft)1.9m (6.3ft)1.9m (6.4ft)1.9m (6.3ft)1.8m (6.0ft)1.7m (5.7ft)
Direction 329°
NNW
335°
NNW
336°
NNW
338°
NNW
338°
NNW
337°
NNW
338°
NNW
338°
NNW
Period15.4 sec.14.8 sec.14.6 sec.14.4 sec.14.1 sec.13.8 sec.13.7 sec.13.5 sec.
Significant height1.1m (3.6ft)0.9m (3ft)1.0m (3.3ft)1.1m (3.6ft)1.2m (3.9ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)

Sea weather on Sunday 7 December 2025

On Sunday 7 December 2025, the sun will rise at 06:47 and will set at 17:44 on the beach(es) of Kapaau. The outside temperature will be a high of 74°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 17.4mph km/h (with gusts up to 25.5mph). Wave height will be up to 6.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature22°C (72°F)22°C (71°F)22°C (71°F)23°C (73°F)23°C (74°F)23°C (73°F)21°C (70°F)22°C (71°F)
Perceived temperature25°C (76°F)22°C (71°F)22°C (71°F)25°C (77°F)25°C (77°F)25°C (77°F)21°C (70°F)22°C (71°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%79%78%72%71%73%73%72%
Barometric pressure1017 hPa1016 hPa1016 hPa1018 hPa1016 hPa1015 hPa1016 hPa1018 hPa
Cloud cover24%24%77%78%77%85%8%0%
Heat index25°C (76°F)24°C (76°F)24°C (76°F)25°C (77°F)25°C (77°F)25°C (77°F)21°C (70°F)24°C (76°F)
Dew point18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)16°C (61°F)16°C (61°F)
Wind
Speed21km/h (13mph)22km/h (13mph)24km/h (15mph)23km/h (14mph)22km/h (14mph)20km/h (13mph)23km/h (14mph)28km/h (17mph)
Gusts30km/h (19mph)32km/h (20mph)36km/h (22mph)30km/h (19mph)29km/h (18mph)28km/h (17mph)39km/h (24mph)41km/h (26mph)
Direction 100°
E
87°
E
88°
E
88°
E
87°
E
85°
E
85°
E
88°
E
Wind chill22°C (72°F)22°C (71°F)22°C (71°F)23°C (73°F)23°C (74°F)23°C (73°F)21°C (70°F)22°C (71°F)
Waves
Height1.7m (5.5ft)1.7m (5.5ft)1.6m (5.4ft)1.7m (5.5ft)1.8m (6.0ft)2.1m (6.8ft)2.1m (7.0ft)1.9m (6.4ft)
Direction 339°
NNW
340°
NNW
340°
NNW
339°
NNW
339°
NNW
251°
WSW
133°
SE
92°
E
Period13.3 sec.13.0 sec.12.8 sec.12.6 sec.12.4 sec.12.4 sec.12.5 sec.12.5 sec.
Significant height1.0m (3.3ft)1.4m (4.6ft)1.4m (4.6ft)1.4m (4.6ft)1.6m (5.2ft)1.8m (5.9ft)1.8m (5.9ft)1.5m (4.9ft)
Sea water temperature
Water temperature25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)

Sea weather on Monday 8 December 2025

On Monday 8 December 2025, the sun will rise at 06:47 and will set at 17:44 on the beach(es) of Kapaau. The outside temperature will be a high of 74°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 17.4mph km/h (with gusts up to 26.1mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature22°C (71°F)21°C (70°F)21°C (69°F)23°C (73°F)22°C (71°F)22°C (72°F)22°C (71°F)22°C (71°F)
Perceived temperature22°C (71°F)21°C (70°F)21°C (69°F)25°C (77°F)22°C (71°F)25°C (76°F)22°C (71°F)22°C (71°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity70%71%74%69%65%67%75%74%
Barometric pressure1017 hPa1016 hPa1016 hPa1017 hPa1016 hPa1014 hPa1015 hPa1016 hPa
Cloud cover0%0%84%76%85%87%75%5%
Heat index24°C (76°F)21°C (70°F)21°C (69°F)25°C (77°F)24°C (76°F)25°C (76°F)24°C (76°F)24°C (76°F)
Dew point16°C (61°F)16°C (60°F)16°C (61°F)17°C (62°F)15°C (58°F)16°C (60°F)17°C (63°F)17°C (63°F)
Wind
Speed28km/h (17mph)24km/h (15mph)21km/h (13mph)26km/h (16mph)24km/h (15mph)25km/h (15mph)21km/h (13mph)19km/h (12mph)
Gusts42km/h (26mph)37km/h (23mph)34km/h (21mph)32km/h (20mph)28km/h (17mph)39km/h (24mph)33km/h (20mph)28km/h (18mph)
Direction 88°
E
95°
E
100°
E
91°
E
79°
E
82°
E
87°
E
98°
E
Wind chill22°C (71°F)21°C (70°F)21°C (69°F)23°C (73°F)22°C (71°F)22°C (72°F)22°C (71°F)22°C (71°F)
Waves
Height1.8m (5.8ft)1.5m (4.8ft)1.4m (4.6ft)1.4m (4.6ft)1.5m (5.0ft)1.7m (5.5ft)1.7m (5.6ft)1.6m (5.1ft)
Direction 79°
ENE
207°
SSW
207°
SSW
117°
ESE
87°
E
77°
ENE
74°
ENE
74°
ENE
Period12.4 sec.12.0 sec.12.0 sec.11.8 sec.11.6 sec.11.3 sec.11.1 sec.10.9 sec.
Significant height1.3m (4.3ft)1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)1.4m (4.6ft)1.5m (4.9ft)1.5m (4.9ft)1.3m (4.3ft)
Sea water temperature
Water temperature25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)

Sea weather on Tuesday 9 December 2025

On Tuesday 9 December 2025, the sun will rise at 06:48 and will set at 17:45 on the beach(es) of Kapaau. The outside temperature will be a high of 74°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 13.1mph km/h (with gusts up to 19.3mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature22°C (71°F)21°C (71°F)22°C (71°F)22°C (72°F)23°C (73°F)22°C (72°F)22°C (72°F)22°C (71°F)
Perceived temperature22°C (71°F)21°C (71°F)22°C (71°F)25°C (76°F)25°C (77°F)25°C (76°F)25°C (76°F)22°C (71°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%76%74%70%67%70%74%76%
Barometric pressure1016 hPa1015 hPa1014 hPa1015 hPa1014 hPa1013 hPa1014 hPa1014 hPa
Cloud cover70%11%5%5%7%12%25%30%
Heat index24°C (76°F)24°C (76°F)24°C (76°F)25°C (76°F)25°C (77°F)25°C (76°F)25°C (76°F)25°C (76°F)
Dew point17°C (63°F)17°C (62°F)17°C (62°F)16°C (62°F)16°C (61°F)17°C (62°F)17°C (63°F)17°C (63°F)
Wind
Speed19km/h (12mph)21km/h (13mph)21km/h (13mph)19km/h (12mph)17km/h (10mph)15km/h (9mph)13km/h (8mph)12km/h (7mph)
Gusts28km/h (17mph)30km/h (19mph)31km/h (19mph)27km/h (17mph)23km/h (14mph)22km/h (14mph)20km/h (12mph)17km/h (11mph)
Direction 94°
E
91°
E
90°
E
88°
E
80°
E
85°
E
102°
ESE
112°
ESE
Wind chill22°C (71°F)21°C (71°F)22°C (71°F)22°C (72°F)23°C (73°F)22°C (72°F)22°C (72°F)22°C (71°F)
Waves
Height1.4m (4.6ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.4m (4.6ft)1.4m (4.6ft)1.4m (4.6ft)
Direction 73°
ENE
73°
ENE
72°
ENE
72°
ENE
71°
ENE
70°
ENE
70°
ENE
70°
ENE
Period9.9 sec.8.0 sec.8.0 sec.10.0 sec.13.9 sec.13.2 sec.12.4 sec.12.3 sec.
Significant height1.0m (3.3ft)0.6m (2ft)0.4m (1.3ft)0.5m (1.6ft)0.8m (2.6ft)1.0m (3.3ft)1.0m (3.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)

Sea weather on Wednesday 10 December 2025

On Wednesday 10 December 2025, the sun will rise at 06:48 and will set at 17:45 on the beach(es) of Kapaau. The outside temperature will be a high of 74°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 7.5mph km/h (with gusts up to 11.2mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (70°F)21°C (70°F)21°C (70°F)22°C (72°F)23°C (74°F)23°C (73°F)22°C (72°F)22°C (71°F)
Perceived temperature21°C (70°F)21°C (70°F)21°C (70°F)25°C (76°F)25°C (77°F)25°C (77°F)25°C (76°F)22°C (71°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%77%76%71%66%67%72%76%
Barometric pressure1014 hPa1013 hPa1013 hPa1013 hPa1012 hPa1010 hPa1011 hPa1012 hPa
Cloud cover23%19%17%16%13%18%23%23%
Heat index24°C (76°F)23°C (74°F)22°C (72°F)25°C (76°F)25°C (77°F)25°C (77°F)25°C (76°F)25°C (76°F)
Dew point17°C (63°F)17°C (62°F)17°C (62°F)17°C (62°F)16°C (61°F)16°C (61°F)17°C (62°F)17°C (63°F)
Wind
Speed12km/h (7mph)12km/h (7mph)12km/h (7mph)10km/h (6mph)6km/h (4mph)5km/h (3mph)4km/h (2mph)3km/h (2mph)
Gusts18km/h (11mph)18km/h (11mph)18km/h (11mph)14km/h (9mph)8km/h (5mph)6km/h (4mph)5km/h (3mph)4km/h (3mph)
Direction 112°
ESE
107°
ESE
110°
ESE
107°
ESE
148°
SSE
252°
WSW
222°
SW
191°
S
Wind chill21°C (70°F)21°C (70°F)21°C (70°F)22°C (72°F)23°C (74°F)23°C (73°F)22°C (72°F)22°C (71°F)
Waves
Height1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.3m (4.3ft)1.3m (4.3ft)1.3m (4.3ft)
Direction 70°
ENE
70°
ENE
71°
ENE
157°
SSE
326°
NNW
325°
NW
327°
NNW
333°
NNW
Period10.7 sec.7.4 sec.7.4 sec.7.4 sec.7.4 sec.10.1 sec.12.9 sec.7.5 sec.
Significant height0.6m (2ft)0.6m (2ft)0.6m (2ft)0.4m (1.3ft)0.4m (1.3ft)0.6m (2ft)0.7m (2.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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