Sea weather in island of Hawaii (Big Island) in Hawaii All the beach weather in island of Hawaii (Big Island)

All the essential weather information for enjoying the beach in island of Hawaii (Big Island) 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 island of Hawaii (Big Island) over the next 7 days?

Discover the best moment to go to the beach in island of Hawaii (Big Island) in Hawaii this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in island of Hawaii (Big Island). 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 202572°F to 76°Frecommended
Monday 15 December 202572°F to 76°Frecommended
Tuesday 16 December 202572°F to 76°Frecommended
Wednesday 17 December 202572°F to 76°Frecommended
Thursday 18 December 202572°F to 74°Frecommended
Friday 19 December 202572°F to 76°Frecommended

Sea Weather: Your daily and hourly sea weather in island of Hawaii (Big Island)

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 06:50 and will set at 17:47 on the beach(es) of island of Hawaii (Big Island). 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 13.1mph km/h (with gusts up to 21.1mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature22°C (71°F)22°C (71°F)22°C (71°F)24°C (75°F)22°C (71°F)23°C (74°F)21°C (71°F)23°C (73°F)
Perceived temperature22°C (71°F)22°C (71°F)22°C (71°F)26°C (78°F)22°C (71°F)25°C (77°F)21°C (71°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity57%59%64%60%62%73%77%76%
Barometric pressure1013 hPa1013 hPa1013 hPa1015 hPa1013 hPa1012 hPa1013 hPa1015 hPa
Cloud cover0%1%0%1%2%4%5%4%
Heat index25°C (76°F)25°C (76°F)25°C (76°F)26°C (78°F)24°C (76°F)25°C (77°F)24°C (76°F)25°C (77°F)
Dew point13°C (56°F)14°C (56°F)15°C (59°F)16°C (61°F)14°C (57°F)18°C (64°F)17°C (63°F)18°C (65°F)
Wind
Speed13km/h (8mph)14km/h (9mph)14km/h (9mph)14km/h (9mph)21km/h (13mph)21km/h (13mph)19km/h (12mph)17km/h (11mph)
Gusts21km/h (13mph)23km/h (14mph)24km/h (15mph)19km/h (12mph)25km/h (16mph)34km/h (21mph)20km/h (12mph)27km/h (17mph)
Direction 164°
SSE
159°
SSE
166°
SSE
178°
S
194°
SSW
195°
SSW
181°
S
175°
S
Wind chill22°C (71°F)22°C (71°F)22°C (71°F)24°C (75°F)22°C (71°F)23°C (74°F)21°C (71°F)23°C (73°F)
Waves
Height0.6m (2.0ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.1ft)0.6m (2.0ft)
Direction 221°
SW
214°
SSW
208°
SSW
204°
SSW
194°
SSW
192°
SSW
190°
S
199°
SSW
Period10.9 sec.10.8 sec.10.6 sec.10.4 sec.10.3 sec.10.2 sec.10.2 sec.10.0 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)
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 on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:50 and will set at 17:48 on the beach(es) of island of Hawaii (Big Island). 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 9.9mph km/h (with gusts up to 16.2mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (73°F)22°C (72°F)22°C (71°F)24°C (74°F)22°C (72°F)23°C (74°F)22°C (71°F)22°C (72°F)
Perceived temperature25°C (77°F)25°C (76°F)22°C (71°F)25°C (78°F)25°C (76°F)25°C (77°F)22°C (71°F)25°C (76°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%75%75%68%70%77%84%84%
Barometric pressure1014 hPa1013 hPa1014 hPa1015 hPa1014 hPa1012 hPa1014 hPa1016 hPa
Cloud cover3%3%3%2%2%76%79%74%
Heat index25°C (77°F)25°C (76°F)24°C (76°F)25°C (78°F)25°C (76°F)25°C (77°F)24°C (76°F)25°C (76°F)
Dew point18°C (65°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (62°F)19°C (66°F)19°C (66°F)19°C (67°F)
Wind
Speed16km/h (10mph)13km/h (8mph)9km/h (6mph)10km/h (6mph)14km/h (9mph)15km/h (9mph)11km/h (7mph)10km/h (6mph)
Gusts25km/h (15mph)22km/h (14mph)15km/h (9mph)13km/h (8mph)26km/h (16mph)20km/h (13mph)17km/h (11mph)14km/h (9mph)
Direction 172°
S
164°
SSE
170°
S
192°
SSW
205°
SSW
205°
SSW
175°
S
171°
S
Wind chill23°C (73°F)22°C (72°F)22°C (71°F)24°C (74°F)22°C (72°F)23°C (74°F)22°C (71°F)22°C (72°F)
Waves
Height0.6m (1.9ft)0.6m (1.9ft)0.5m (1.8ft)0.5m (1.7ft)0.6m (2.0ft)0.7m (2.4ft)0.7m (2.5ft)0.8m (2.7ft)
Direction 196°
SSW
193°
SSW
190°
S
275°
W
290°
WNW
293°
WNW
293°
WNW
296°
WNW
Period11.7 sec.3.2 sec.3.1 sec.5.8 sec.15.6 sec.15.1 sec.4.1 sec.14.4 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)
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 on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:51 and will set at 17:48 on the beach(es) of island of Hawaii (Big Island). 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 9.3mph km/h (with gusts up to 13.7mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature22°C (72°F)22°C (72°F)22°C (71°F)23°C (74°F)23°C (74°F)23°C (74°F)22°C (72°F)23°C (73°F)
Perceived temperature25°C (76°F)25°C (76°F)22°C (71°F)25°C (78°F)25°C (77°F)25°C (77°F)25°C (76°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%85%84%75%75%76%82%82%
Barometric pressure1016 hPa1015 hPa1016 hPa1017 hPa1016 hPa1014 hPa1015 hPa1016 hPa
Cloud cover84%88%78%14%11%11%87%74%
Heat index25°C (76°F)25°C (76°F)24°C (76°F)25°C (78°F)25°C (77°F)25°C (77°F)25°C (76°F)25°C (77°F)
Dew point20°C (67°F)19°C (67°F)19°C (66°F)19°C (66°F)19°C (65°F)19°C (66°F)19°C (66°F)19°C (67°F)
Wind
Speed9km/h (6mph)5km/h (3mph)8km/h (5mph)8km/h (5mph)9km/h (6mph)15km/h (9mph)9km/h (6mph)8km/h (5mph)
Gusts13km/h (8mph)7km/h (4mph)12km/h (7mph)10km/h (6mph)13km/h (8mph)22km/h (13mph)14km/h (9mph)11km/h (7mph)
Direction 199°
SSW
246°
WSW
335°
NNW
331°
NNW
308°
NW
317°
NW
299°
WNW
295°
WNW
Wind chill22°C (72°F)22°C (72°F)22°C (71°F)23°C (74°F)23°C (74°F)23°C (74°F)22°C (72°F)23°C (73°F)
Waves
Height1.0m (3.3ft)1.2m (3.9ft)1.3m (4.2ft)1.2m (4.1ft)1.2m (3.9ft)1.1m (3.7ft)1.1m (3.5ft)1.0m (3.2ft)
Direction 293°
WNW
295°
WNW
290°
WNW
290°
WNW
290°
WNW
289°
WNW
288°
WNW
284°
WNW
Period13.9 sec.13.5 sec.13.1 sec.12.6 sec.12.4 sec.12.0 sec.11.8 sec.11.6 sec.
Significant height0.9m (3ft)0.6m (2ft)0.6m (2ft)0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)1.0m (3.3ft)1.2m (3.9ft)
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 on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:51 and will set at 17:49 on the beach(es) of island of Hawaii (Big Island). 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 5.6mph km/h (with gusts up to 8.1mph). Wave height will be up to 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 (75°F)24°C (74°F)23°C (74°F)22°C (72°F)23°C (73°F)
Perceived temperature25°C (77°F)25°C (77°F)25°C (77°F)26°C (78°F)25°C (78°F)25°C (77°F)25°C (76°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%81%79%74%70%73%78%81%
Barometric pressure1016 hPa1015 hPa1015 hPa1017 hPa1015 hPa1014 hPa1014 hPa1016 hPa
Cloud cover29%46%24%15%7%87%14%36%
Heat index25°C (77°F)25°C (77°F)25°C (77°F)26°C (78°F)25°C (78°F)25°C (77°F)25°C (76°F)25°C (77°F)
Dew point19°C (67°F)19°C (66°F)19°C (66°F)19°C (66°F)18°C (64°F)18°C (65°F)18°C (65°F)19°C (67°F)
Wind
Speed4km/h (3mph)7km/h (4mph)7km/h (4mph)8km/h (5mph)9km/h (5mph)8km/h (5mph)6km/h (4mph)8km/h (5mph)
Gusts6km/h (4mph)10km/h (6mph)10km/h (6mph)10km/h (6mph)13km/h (8mph)12km/h (7mph)10km/h (6mph)12km/h (7mph)
Direction 283°
WNW
308°
NW
358°
N
316°
NW
293°
WNW
270°
W
325°
NW
357°
N
Wind chill23°C (73°F)23°C (73°F)23°C (73°F)24°C (75°F)24°C (74°F)23°C (74°F)22°C (72°F)23°C (73°F)
Waves
Height0.9m (3.0ft)0.9m (3.0ft)0.8m (2.7ft)0.8m (2.5ft)0.7m (2.4ft)0.8m (2.5ft)0.7m (2.4ft)0.7m (2.3ft)
Direction 278°
W
288°
WNW
269°
W
270°
W
273°
W
266°
W
256°
WSW
244°
WSW
Period11.2 sec.11.1 sec.11.0 sec.11.0 sec.11.0 sec.6.3 sec.6.5 sec.6.8 sec.
Significant height0.9m (3ft)0.9m (3ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)
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 on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:52 and will set at 17:49 on the beach(es) of island of Hawaii (Big Island). 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 6.8mph km/h (with gusts up to 9.9mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (73°F)22°C (72°F)22°C (72°F)24°C (74°F)24°C (75°F)23°C (73°F)23°C (73°F)23°C (73°F)
Perceived temperature25°C (77°F)25°C (76°F)25°C (76°F)25°C (78°F)25°C (78°F)25°C (77°F)25°C (77°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%78%78%73%69%74%79%80%
Barometric pressure1015 hPa1014 hPa1014 hPa1015 hPa1014 hPa1012 hPa1013 hPa1015 hPa
Cloud cover24%28%34%15%6%79%32%72%
Heat index25°C (77°F)25°C (76°F)25°C (76°F)25°C (78°F)25°C (78°F)25°C (77°F)25°C (77°F)25°C (77°F)
Dew point19°C (66°F)18°C (65°F)18°C (64°F)18°C (65°F)18°C (64°F)18°C (65°F)19°C (66°F)19°C (66°F)
Wind
Speed9km/h (6mph)5km/h (3mph)4km/h (2mph)8km/h (5mph)9km/h (6mph)4km/h (2mph)9km/h (6mph)11km/h (7mph)
Gusts14km/h (9mph)8km/h (5mph)6km/h (4mph)11km/h (7mph)14km/h (9mph)6km/h (4mph)14km/h (9mph)16km/h (10mph)
Direction 18°
NNE
125°
SE
176°
S
333°
NNW
300°
WNW
240°
WSW
194°
SSW
195°
SSW
Wind chill23°C (73°F)22°C (72°F)22°C (72°F)24°C (74°F)24°C (75°F)23°C (73°F)23°C (73°F)23°C (73°F)
Waves
Height0.7m (2.2ft)0.6m (2.1ft)0.7m (2.2ft)0.7m (2.4ft)0.8m (2.7ft)1.0m (3.2ft)1.0m (3.4ft)1.1m (3.7ft)
Direction 234°
SW
228°
SW
289°
WNW
290°
WNW
290°
WNW
292°
WNW
287°
WNW
288°
WNW
Period7.0 sec.7.9 sec.4.9 sec.8.1 sec.13.4 sec.14.0 sec.13.1 sec.12.4 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.7m (2.3ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (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 on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:52 and will set at 17:50 on the beach(es) of island of Hawaii (Big Island). 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 6.2mph km/h (with gusts up to 8.7mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (73°F)22°C (72°F)22°C (72°F)23°C (74°F)23°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)
Perceived temperature25°C (77°F)25°C (76°F)25°C (76°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%80%77%70%66%71%77%82%
Barometric pressure1014 hPa1013 hPa1014 hPa1015 hPa1014 hPa1013 hPa1015 hPa1016 hPa
Cloud cover17%4%3%1%2%5%10%19%
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)25°C (77°F)25°C (77°F)
Dew point19°C (67°F)19°C (66°F)18°C (65°F)17°C (63°F)16°C (62°F)17°C (63°F)19°C (65°F)20°C (67°F)
Wind
Speed10km/h (6mph)3km/h (2mph)1km/h (1mph)3km/h (2mph)7km/h (4mph)6km/h (4mph)5km/h (3mph)4km/h (3mph)
Gusts14km/h (9mph)4km/h (2mph)1km/h (1mph)5km/h (3mph)12km/h (7mph)11km/h (7mph)8km/h (5mph)6km/h (4mph)
Direction 188°
S
189°
S
222°
SW
284°
WNW
277°
W
238°
WSW
209°
SSW
265°
W
Wind chill23°C (73°F)22°C (72°F)22°C (72°F)23°C (74°F)23°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)
Waves
Height1.2m (3.8ft)1.2m (3.9ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3.0ft)
Direction 294°
WNW
295°
WNW
295°
WNW
294°
WNW
290°
WNW
289°
WNW
289°
WNW
289°
WNW
Period12.9 sec.12.8 sec.12.2 sec.11.8 sec.11.4 sec.11.2 sec.11.1 sec.10.7 sec.
Significant height0.9m (3ft)0.7m (2.3ft)0.4m (1.3ft)0.6m (2ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.9m (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 on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 06:53 and will set at 17:50 on the beach(es) of island of Hawaii (Big Island). 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 7.5mph km/h (with gusts up to 11.8mph). Wave height will be up to 3ft 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)23°C (73°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 (77°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%85%81%74%73%76%78%81%
Barometric pressure1016 hPa1015 hPa1016 hPa1016 hPa1015 hPa1013 hPa1014 hPa1015 hPa
Cloud cover27%18%7%6%4%9%22%29%
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 (77°F)25°C (77°F)
Dew point19°C (67°F)19°C (67°F)19°C (66°F)18°C (65°F)18°C (65°F)19°C (65°F)19°C (66°F)19°C (67°F)
Wind
Speed10km/h (6mph)12km/h (8mph)7km/h (4mph)4km/h (2mph)9km/h (6mph)12km/h (7mph)8km/h (5mph)5km/h (3mph)
Gusts15km/h (9mph)19km/h (12mph)11km/h (7mph)6km/h (4mph)14km/h (9mph)18km/h (11mph)12km/h (8mph)7km/h (4mph)
Direction 338°
NNW
235°
SW

N
94°
E
271°
W
305°
NW
286°
WNW
217°
SW
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)23°C (73°F)23°C (73°F)
Waves
Height0.9m (3.0ft)0.9m (3.0ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)
Direction 288°
WNW
287°
WNW
285°
WNW
283°
WNW
280°
W
281°
WNW
289°
WNW
294°
WNW
Period10.3 sec.10.0 sec.9.8 sec.9.6 sec.9.3 sec.8.9 sec.8.8 sec.8.8 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)
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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