Sea weather in Kahului in Hawaii All the beach weather in Kahului

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

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

Date Outside temp. Our opinion
Friday 12 December 202572°F to 74°Frecommended
Saturday 13 December 202570°F to 77°Frecommended
Sunday 14 December 202574°F to 77°Frecommended
Monday 15 December 202572°F to 77°Fdiscouraged
Tuesday 16 December 202574°F to 77°Fdiscouraged
Wednesday 17 December 202572°F to 76°Fdiscouraged
Thursday 18 December 202574°F to 76°Frecommended

Sea Weather: Your daily and hourly sea weather in Kahului

Sea weather on Friday 12 December 2025

On Friday 12 December 2025, the sun will rise at 06:53 and will set at 17:47 on the beach(es) of Kahului. The outside temperature will be a high of 74°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 7.5mph km/h (with gusts up to 10.6mph). Wave height will be up to 4.6ft 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 (73°F)23°C (73°F)23°C (73°F)22°C (72°F)23°C (73°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 (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%76%83%81%80%81%81%81%
Barometric pressure1012 hPa1012 hPa1012 hPa1013 hPa1012 hPa1010 hPa1012 hPa1013 hPa
Cloud cover46%93%69%56%63%77%71%83%
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 (77°F)
Dew point17°C (63°F)18°C (64°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (67°F)
Wind
Speed7km/h (4mph)7km/h (4mph)3km/h (2mph)6km/h (4mph)10km/h (6mph)12km/h (8mph)9km/h (6mph)9km/h (5mph)
Gusts10km/h (6mph)10km/h (6mph)4km/h (3mph)8km/h (5mph)14km/h (9mph)17km/h (11mph)14km/h (8mph)13km/h (8mph)
Direction 17°
NNE
357°
N
12°
NNE
31°
NNE
25°
NNE
37°
NE
54°
NE
124°
SE
Wind chill22°C (72°F)22°C (72°F)22°C (72°F)23°C (73°F)23°C (73°F)23°C (73°F)22°C (72°F)23°C (73°F)
Waves
Height1.4m (4.5ft)1.3m (4.3ft)1.3m (4.2ft)1.3m (4.1ft)1.2m (4.1ft)1.2m (4.1ft)1.2m (4.1ft)1.2m (4.1ft)
Direction 323°
NW
324°
NW
326°
NW
328°
NNW
331°
NNW
332°
NNW
333°
NNW
336°
NNW
Period11.8 sec.11.7 sec.11.7 sec.11.6 sec.11.3 sec.11.1 sec.10.9 sec.11.0 sec.
Significant height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.3m (1ft)1.0m (3.3ft)1.0m (3.3ft)0.2m (0.7ft)
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 on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 06:54 and will set at 17:47 on the beach(es) of Kahului. 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 10.6mph km/h (with gusts up to 16.2mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (73°F)23°C (73°F)23°C (73°F)24°C (76°F)22°C (71°F)23°C (74°F)23°C (73°F)24°C (74°F)
Perceived temperature25°C (77°F)25°C (77°F)25°C (77°F)26°C (78°F)22°C (71°F)25°C (77°F)25°C (77°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%72%70%69%66%67%76%80%
Barometric pressure1013 hPa1011 hPa1012 hPa1013 hPa1012 hPa1010 hPa1012 hPa1014 hPa
Cloud cover3%0%0%0%3%8%4%4%
Heat index25°C (77°F)25°C (77°F)25°C (77°F)26°C (78°F)25°C (76°F)25°C (77°F)25°C (77°F)26°C (78°F)
Dew point19°C (66°F)17°C (63°F)17°C (63°F)18°C (65°F)15°C (59°F)17°C (62°F)18°C (65°F)20°C (68°F)
Wind
Speed5km/h (3mph)11km/h (7mph)17km/h (10mph)11km/h (7mph)8km/h (5mph)3km/h (2mph)10km/h (6mph)12km/h (7mph)
Gusts7km/h (4mph)17km/h (10mph)26km/h (16mph)15km/h (9mph)16km/h (10mph)6km/h (4mph)19km/h (12mph)18km/h (11mph)
Direction 199°
SSW
221°
SW
199°
SSW
195°
SSW
123°
ESE
136°
SE
197°
SSW
195°
SSW
Wind chill23°C (73°F)23°C (73°F)23°C (73°F)24°C (76°F)22°C (71°F)23°C (74°F)23°C (73°F)24°C (74°F)
Waves
Height1.3m (4.1ft)1.3m (4.2ft)1.3m (4.3ft)1.3m (4.2ft)1.2m (4.1ft)1.2m (4.0ft)1.2m (3.8ft)1.1m (3.6ft)
Direction 339°
NNW
339°
NNW
341°
NNW
343°
NNW
344°
NNW
347°
NNW
347°
NNW
352°
N
Period10.9 sec.10.7 sec.10.4 sec.10.3 sec.10.2 sec.10.1 sec.10.0 sec.10.7 sec.
Significant height0.1m (0.3ft)0.5m (1.6ft)0.8m (2.6ft)0.6m (2ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)1.0m (3.3ft)
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 on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:55 and will set at 17:47 on the beach(es) of Kahului. 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 9.9mph km/h (with gusts up to 14.3mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (74°F)23°C (74°F)23°C (74°F)24°C (76°F)24°C (76°F)25°C (77°F)24°C (75°F)24°C (75°F)
Perceived temperature26°C (78°F)25°C (78°F)25°C (77°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%80%80%74%72%69%76%81%
Barometric pressure1013 hPa1012 hPa1013 hPa1014 hPa1013 hPa1011 hPa1013 hPa1014 hPa
Cloud cover4%5%7%17%11%78%87%73%
Heat index26°C (78°F)25°C (78°F)25°C (77°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)26°C (78°F)
Dew point20°C (68°F)20°C (67°F)20°C (67°F)19°C (67°F)19°C (66°F)19°C (66°F)20°C (67°F)20°C (68°F)
Wind
Speed12km/h (7mph)16km/h (10mph)12km/h (8mph)7km/h (4mph)10km/h (6mph)5km/h (3mph)4km/h (2mph)7km/h (4mph)
Gusts17km/h (11mph)23km/h (14mph)18km/h (11mph)10km/h (6mph)15km/h (9mph)8km/h (5mph)6km/h (4mph)10km/h (6mph)
Direction 202°
SSW
204°
SSW
180°
S
145°
SE
72°
ENE
62°
ENE
176°
S
211°
SSW
Wind chill24°C (74°F)23°C (74°F)23°C (74°F)24°C (76°F)24°C (76°F)25°C (77°F)24°C (75°F)24°C (75°F)
Waves
Height1.0m (3.3ft)1.0m (3.1ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (3.1ft)1.0m (3.4ft)1.2m (4.0ft)1.4m (4.6ft)
Direction 349°
N
352°
N
353°
N
350°
N
348°
NNW
318°
NW
320°
NW
323°
NW
Period10.2 sec.10.2 sec.10.1 sec.9.8 sec.9.7 sec.12.0 sec.11.7 sec.13.6 sec.
Significant height0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.6m (2ft)0.7m (2.3ft)1.0m (3.3ft)0.3m (1ft)
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 06:55 and will set at 17:48 on the beach(es) of Kahului. 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 13.1mph km/h (with gusts up to 19.9mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (75°F)23°C (74°F)23°C (74°F)24°C (76°F)24°C (75°F)23°C (73°F)22°C (72°F)23°C (74°F)
Perceived temperature26°C (78°F)25°C (78°F)25°C (78°F)26°C (79°F)26°C (78°F)25°C (77°F)25°C (76°F)25°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%82%81%77%76%77%82%79%
Barometric pressure1014 hPa1013 hPa1013 hPa1016 hPa1015 hPa1014 hPa1014 hPa1015 hPa
Cloud cover31%79%89%63%84%75%52%11%
Heat index26°C (78°F)25°C (78°F)25°C (78°F)26°C (79°F)26°C (78°F)25°C (77°F)25°C (76°F)25°C (78°F)
Dew point20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)19°C (66°F)19°C (65°F)19°C (66°F)19°C (67°F)
Wind
Speed8km/h (5mph)12km/h (8mph)15km/h (10mph)8km/h (5mph)4km/h (2mph)6km/h (4mph)21km/h (13mph)8km/h (5mph)
Gusts11km/h (7mph)18km/h (11mph)22km/h (14mph)11km/h (7mph)6km/h (4mph)8km/h (5mph)32km/h (20mph)12km/h (7mph)
Direction 160°
SSE
131°
SE
128°
SE
205°
SSW
280°
W
62°
ENE
107°
ESE
123°
ESE
Wind chill24°C (75°F)23°C (74°F)23°C (74°F)24°C (76°F)24°C (75°F)23°C (73°F)22°C (72°F)23°C (74°F)
Waves
Height1.5m (4.9ft)1.5m (5.1ft)1.6m (5.4ft)1.7m (5.6ft)1.8m (5.8ft)1.9m (6.1ft)1.8m (5.8ft)1.7m (5.7ft)
Direction 327°
NNW
331°
NNW
337°
NNW
342°
NNW
348°
NNW
350°
N
351°
N
353°
N
Period13.2 sec.12.7 sec.12.3 sec.12.6 sec.13.7 sec.13.7 sec.14.2 sec.14.1 sec.
Significant height0.2m (0.7ft)0.3m (1ft)0.9m (3ft)1.3m (4.3ft)0.3m (1ft)1.3m (4.3ft)0.3m (1ft)0.5m (1.6ft)
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 on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:56 and will set at 17:48 on the beach(es) of Kahului. 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 15.5mph km/h (with gusts up to 24.9mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (74°F)24°C (74°F)23°C (74°F)24°C (76°F)24°C (76°F)24°C (75°F)23°C (74°F)24°C (75°F)
Perceived temperature25°C (78°F)26°C (78°F)25°C (78°F)26°C (79°F)26°C (79°F)26°C (79°F)25°C (78°F)26°C (79°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%82%84%78%76%78%79%81%
Barometric pressure1015 hPa1014 hPa1015 hPa1016 hPa1015 hPa1013 hPa1013 hPa1015 hPa
Cloud cover22%32%33%16%19%12%7%8%
Heat index25°C (78°F)26°C (78°F)25°C (78°F)26°C (79°F)26°C (79°F)26°C (79°F)25°C (78°F)26°C (79°F)
Dew point20°C (67°F)20°C (68°F)21°C (69°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (67°F)20°C (69°F)
Wind
Speed8km/h (5mph)13km/h (8mph)22km/h (13mph)19km/h (12mph)22km/h (14mph)25km/h (15mph)5km/h (3mph)11km/h (7mph)
Gusts12km/h (7mph)19km/h (11mph)32km/h (20mph)25km/h (16mph)34km/h (21mph)40km/h (25mph)9km/h (6mph)17km/h (10mph)
Direction 64°
ENE
80°
E
109°
ESE
115°
ESE
98°
E
91°
E
146°
SSE
211°
SSW
Wind chill24°C (74°F)24°C (74°F)23°C (74°F)24°C (76°F)24°C (76°F)24°C (75°F)23°C (74°F)24°C (75°F)
Waves
Height1.8m (5.8ft)1.7m (5.7ft)1.7m (5.6ft)1.6m (5.4ft)1.6m (5.3ft)1.7m (5.5ft)1.7m (5.5ft)1.7m (5.5ft)
Direction 355°
N
356°
N
356°
N
354°
N
355°
N
352°
N
354°
N
356°
N
Period13.7 sec.13.5 sec.13.3 sec.13.0 sec.12.7 sec.12.3 sec.12.2 sec.12.2 sec.
Significant height0.7m (2.3ft)0.9m (3ft)0.7m (2.3ft)0.3m (1ft)0.6m (2ft)0.3m (1ft)0.4m (1.3ft)0.3m (1ft)
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 06:56 and will set at 17:49 on the beach(es) of Kahului. 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 14.9mph km/h (with gusts up to 20.5mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)22°C (72°F)23°C (73°F)24°C (75°F)24°C (75°F)
Perceived temperature26°C (78°F)25°C (78°F)25°C (77°F)25°C (77°F)25°C (76°F)25°C (77°F)26°C (78°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%81%81%79%77%79%81%81%
Barometric pressure1015 hPa1014 hPa1014 hPa1015 hPa1014 hPa1012 hPa1013 hPa1014 hPa
Cloud cover70%13%17%12%3%13%24%10%
Heat index26°C (78°F)25°C (78°F)25°C (77°F)25°C (77°F)25°C (76°F)25°C (77°F)26°C (78°F)26°C (78°F)
Dew point20°C (68°F)20°C (68°F)20°C (68°F)19°C (67°F)18°C (65°F)19°C (67°F)20°C (68°F)20°C (68°F)
Wind
Speed10km/h (6mph)13km/h (8mph)16km/h (10mph)19km/h (12mph)22km/h (14mph)24km/h (15mph)16km/h (10mph)10km/h (6mph)
Gusts14km/h (9mph)19km/h (12mph)23km/h (14mph)29km/h (18mph)33km/h (21mph)29km/h (18mph)24km/h (15mph)14km/h (9mph)
Direction 149°
SSE
120°
ESE
110°
ESE
99°
E
87°
E
90°
E
129°
SE
183°
S
Wind chill24°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)22°C (72°F)23°C (73°F)24°C (75°F)24°C (75°F)
Waves
Height1.6m (5.4ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)
Direction 239°
WSW
119°
ESE
356°
N
355°
N
354°
N
353°
N
350°
N
345°
NNW
Period12.3 sec.12.6 sec.12.9 sec.13.0 sec.13.0 sec.12.9 sec.12.6 sec.12.3 sec.
Significant height0.2m (0.7ft)0.1m (0.3ft)0.4m (1.3ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.6m (2ft)0.3m (1ft)
Sea water temperature
Water temperature25°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:57 and will set at 17:49 on the beach(es) of Kahului. The outside temperature will be a high of 76°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 8.1mph km/h (with gusts up to 12.4mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (74°F)23°C (73°F)23°C (73°F)23°C (74°F)24°C (74°F)23°C (73°F)23°C (73°F)24°C (74°F)
Perceived temperature25°C (77°F)25°C (77°F)25°C (77°F)25°C (78°F)25°C (78°F)25°C (77°F)25°C (77°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%82%81%78%76%80%81%81%
Barometric pressure1014 hPa1013 hPa1014 hPa1015 hPa1014 hPa1013 hPa1014 hPa1015 hPa
Cloud cover12%13%12%11%18%26%21%13%
Heat index25°C (77°F)25°C (77°F)25°C (77°F)25°C (78°F)25°C (78°F)25°C (77°F)25°C (77°F)26°C (78°F)
Dew point20°C (68°F)20°C (68°F)19°C (67°F)19°C (66°F)19°C (66°F)19°C (67°F)20°C (67°F)20°C (68°F)
Wind
Speed10km/h (6mph)12km/h (7mph)10km/h (6mph)5km/h (3mph)6km/h (4mph)10km/h (6mph)11km/h (7mph)13km/h (8mph)
Gusts15km/h (9mph)17km/h (11mph)14km/h (9mph)7km/h (4mph)9km/h (6mph)16km/h (10mph)16km/h (10mph)20km/h (12mph)
Direction 172°
S
137°
SE
127°
SE
92°
E
52°
NE
90°
E
102°
ESE
104°
ESE
Wind chill23°C (74°F)23°C (73°F)23°C (73°F)23°C (74°F)24°C (74°F)23°C (73°F)23°C (73°F)24°C (74°F)
Waves
Height1.7m (5.6ft)1.7m (5.6ft)1.7m (5.6ft)1.7m (5.6ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)1.5m (4.9ft)
Direction 339°
NNW
339°
NNW
343°
NNW
346°
NNW
347°
NNW
349°
NNW
352°
N
352°
N
Period12.3 sec.12.5 sec.12.7 sec.12.8 sec.12.7 sec.12.5 sec.12.4 sec.12.4 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.3m (1ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)
Sea water temperature
Water temperature26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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