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
Friday 17 July 202672°F to 79°Frecommended
Saturday 18 July 202672°F to 79°Frecommended
Sunday 19 July 202676°F to 77°Frecommended
Monday 20 July 202676°F to 77°Frecommended
Tuesday 21 July 202676°F to 79°Frecommended
Wednesday 22 July 202674°F to 77°Frecommended
Thursday 23 July 202670°F to 76°Frecommended

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

Sea weather on Friday 17 July 2026

On Friday 17 July 2026, the sun will rise at 05:55 and will set at 19:06 on the beach(es) of island of Hawaii (Big Island). The outside temperature will be a high of 79°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 8.7mph km/h (with gusts up to 15.5mph). Wave height will be up to 3ft 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)26°C (78°F)23°C (73°F)26°C (79°F)26°C (78°F)25°C (77°F)
Perceived temperature26°C (79°F)26°C (79°F)26°C (79°F)27°C (81°F)25°C (77°F)28°C (82°F)27°C (81°F)27°C (80°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%80%80%69%66%67%71%77%
Barometric pressure1015 hPa1014 hPa1015 hPa1016 hPa1015 hPa1014 hPa1014 hPa1015 hPa
Cloud cover86%83%21%15%11%88%81%52%
Heat index26°C (79°F)26°C (79°F)26°C (79°F)27°C (81°F)25°C (77°F)28°C (82°F)27°C (81°F)27°C (80°F)
Dew point20°C (69°F)20°C (69°F)20°C (69°F)20°C (67°F)16°C (61°F)19°C (67°F)20°C (68°F)21°C (69°F)
Wind
Speed7km/h (4mph)9km/h (6mph)7km/h (4mph)6km/h (4mph)12km/h (7mph)13km/h (8mph)14km/h (9mph)5km/h (3mph)
Gusts10km/h (6mph)13km/h (8mph)10km/h (6mph)8km/h (5mph)25km/h (16mph)17km/h (10mph)19km/h (12mph)7km/h (4mph)
Direction 171°
S
336°
NNW
334°
NNW
208°
SSW
200°
SSW
267°
W
316°
NW
208°
SSW
Wind chill24°C (76°F)24°C (75°F)24°C (75°F)26°C (78°F)23°C (73°F)26°C (79°F)26°C (78°F)25°C (77°F)
Waves
Height0.9m (2.8ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (3.0ft)0.9m (3.0ft)
Direction 260°
W
259°
W
256°
WSW
252°
WSW
248°
WSW
244°
WSW
239°
WSW
241°
WSW
Period14.3 sec.14.3 sec.14.2 sec.16.4 sec.16.4 sec.16.3 sec.15.4 sec.15.3 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.6m (2ft)
Sea water temperature
Water temperature24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)

Sea weather on Saturday 18 July 2026

On Saturday 18 July 2026, the sun will rise at 05:55 and will set at 19:05 on the beach(es) of island of Hawaii (Big Island). The outside temperature will be a high of 79°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 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature25°C (77°F)24°C (76°F)24°C (75°F)25°C (78°F)22°C (71°F)25°C (78°F)25°C (77°F)25°C (76°F)
Perceived temperature27°C (80°F)26°C (79°F)26°C (79°F)27°C (81°F)22°C (71°F)27°C (81°F)27°C (81°F)27°C (80°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%78%80%73%76%77%80%83%
Barometric pressure1015 hPa1014 hPa1014 hPa1015 hPa1015 hPa1014 hPa1014 hPa1016 hPa
Cloud cover34%37%12%72%75%59%69%84%
Heat index27°C (80°F)26°C (79°F)26°C (79°F)27°C (81°F)24°C (76°F)27°C (81°F)27°C (81°F)27°C (80°F)
Dew point21°C (70°F)20°C (69°F)20°C (69°F)20°C (68°F)17°C (63°F)21°C (70°F)21°C (70°F)21°C (71°F)
Wind
Speed12km/h (8mph)5km/h (3mph)5km/h (3mph)8km/h (5mph)8km/h (5mph)11km/h (7mph)10km/h (6mph)9km/h (6mph)
Gusts17km/h (11mph)7km/h (4mph)8km/h (5mph)10km/h (6mph)17km/h (11mph)14km/h (9mph)14km/h (9mph)13km/h (8mph)
Direction 170°
S
165°
SSE
339°
NNW
308°
NW
258°
WSW
224°
SW
260°
W
275°
W
Wind chill25°C (77°F)24°C (76°F)24°C (75°F)25°C (78°F)22°C (71°F)25°C (78°F)25°C (77°F)25°C (76°F)
Waves
Height0.9m (2.9ft)0.9m (2.9ft)0.8m (2.8ft)0.8m (2.7ft)0.8m (2.7ft)0.8m (2.7ft)0.8m (2.6ft)0.8m (2.6ft)
Direction 238°
WSW
237°
WSW
236°
WSW
236°
WSW
225°
SW
225°
SW
227°
SW
240°
WSW
Period13.7 sec.13.7 sec.13.2 sec.12.9 sec.12.8 sec.12.7 sec.12.5 sec.12.1 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 05:56 and will set at 19:05 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 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 7.5mph km/h (with gusts up to 9.9mph). Wave height will be up to 2.6ft 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)25°C (76°F)24°C (75°F)24°C (75°F)24°C (75°F)
Perceived temperature26°C (80°F)26°C (79°F)26°C (79°F)26°C (80°F)26°C (80°F)26°C (79°F)26°C (78°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%82%82%77%80%82%83%84%
Barometric pressure1016 hPa1015 hPa1015 hPa1016 hPa1015 hPa1014 hPa1014 hPa1015 hPa
Cloud cover93%77%51%78%77%66%81%89%
Heat index26°C (80°F)26°C (79°F)26°C (79°F)26°C (80°F)26°C (80°F)26°C (79°F)26°C (78°F)26°C (78°F)
Dew point21°C (70°F)21°C (69°F)21°C (69°F)20°C (69°F)21°C (70°F)21°C (69°F)21°C (69°F)21°C (70°F)
Wind
Speed9km/h (6mph)5km/h (3mph)6km/h (4mph)7km/h (4mph)12km/h (7mph)12km/h (7mph)10km/h (6mph)9km/h (6mph)
Gusts12km/h (8mph)7km/h (5mph)8km/h (5mph)9km/h (6mph)16km/h (10mph)16km/h (10mph)14km/h (9mph)12km/h (8mph)
Direction 249°
WSW
236°
SW
206°
SSW
183°
S
242°
WSW
238°
WSW
225°
SW
239°
WSW
Wind chill24°C (76°F)24°C (75°F)24°C (75°F)25°C (76°F)25°C (76°F)24°C (75°F)24°C (75°F)24°C (75°F)
Waves
Height0.8m (2.7ft)0.8m (2.7ft)0.8m (2.6ft)0.7m (2.5ft)0.7m (2.5ft)0.8m (2.5ft)0.8m (2.7ft)0.8m (2.8ft)
Direction 237°
WSW
230°
SW
239°
WSW
239°
WSW
239°
WSW
237°
WSW
231°
SW
223°
SW
Period12.0 sec.3.5 sec.11.7 sec.13.7 sec.13.7 sec.12.0 sec.13.5 sec.13.3 sec.
Significant height0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 05:56 and will set at 19:05 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 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 6.8mph km/h (with gusts up to 9.3mph). Wave height will be up to 3ft 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)25°C (76°F)25°C (76°F)25°C (76°F)24°C (75°F)24°C (75°F)
Perceived temperature26°C (78°F)26°C (78°F)26°C (78°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%78%77%72%72%71%72%75%
Barometric pressure1015 hPa1013 hPa1014 hPa1015 hPa1014 hPa1013 hPa1013 hPa1014 hPa
Cloud cover86%79%76%78%79%86%80%86%
Heat index26°C (78°F)26°C (78°F)26°C (78°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)26°C (78°F)
Dew point21°C (69°F)20°C (67°F)19°C (67°F)19°C (67°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (67°F)
Wind
Speed5km/h (3mph)4km/h (2mph)5km/h (3mph)8km/h (5mph)11km/h (7mph)6km/h (4mph)9km/h (6mph)9km/h (6mph)
Gusts7km/h (5mph)5km/h (3mph)7km/h (4mph)10km/h (6mph)15km/h (10mph)9km/h (5mph)13km/h (8mph)13km/h (8mph)
Direction 250°
WSW
274°
W
282°
WNW
266°
W
255°
WSW
240°
WSW
181°
S
168°
SSE
Wind chill24°C (75°F)24°C (75°F)24°C (75°F)25°C (76°F)25°C (76°F)25°C (76°F)24°C (75°F)24°C (75°F)
Waves
Height0.8m (2.7ft)0.8m (2.7ft)0.8m (2.8ft)0.9m (2.8ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (2.9ft)
Direction 179°
S
180°
S
180°
S
180°
S
180°
S
180°
S
181°
S
181°
S
Period16.7 sec.16.6 sec.16.4 sec.15.7 sec.15.6 sec.15.5 sec.15.4 sec.15.0 sec.
Significant height0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.9m (3ft)
Sea water temperature
Water temperature26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 05:56 and will set at 19:05 on the beach(es) of island of Hawaii (Big Island). The outside temperature will be a high of 79°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 8.7mph 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 temperature24°C (75°F)24°C (74°F)24°C (74°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (78°F)24°C (76°F)
Perceived temperature26°C (78°F)25°C (78°F)25°C (78°F)27°C (80°F)26°C (79°F)27°C (80°F)27°C (81°F)26°C (79°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%74%74%70%68%66%68%74%
Barometric pressure1014 hPa1013 hPa1013 hPa1014 hPa1013 hPa1012 hPa1012 hPa1014 hPa
Cloud cover77%81%77%87%75%71%85%59%
Heat index26°C (78°F)25°C (78°F)25°C (78°F)27°C (80°F)26°C (79°F)27°C (80°F)27°C (81°F)26°C (79°F)
Dew point19°C (65°F)19°C (65°F)19°C (66°F)19°C (67°F)18°C (65°F)18°C (65°F)19°C (66°F)20°C (67°F)
Wind
Speed3km/h (2mph)5km/h (3mph)8km/h (5mph)10km/h (6mph)10km/h (6mph)8km/h (5mph)14km/h (9mph)4km/h (2mph)
Gusts4km/h (2mph)8km/h (5mph)13km/h (8mph)13km/h (8mph)14km/h (9mph)11km/h (7mph)19km/h (12mph)6km/h (4mph)
Direction 155°
SSE
353°
N
358°
N
310°
NW
267°
W
205°
SSW
188°
S
199°
SSW
Wind chill24°C (75°F)24°C (74°F)24°C (74°F)25°C (77°F)25°C (77°F)25°C (77°F)25°C (78°F)24°C (76°F)
Waves
Height0.9m (2.9ft)0.9m (2.9ft)0.9m (3.0ft)0.9m (3.1ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.1ft)
Direction 181°
S
181°
S
182°
S
182°
S
183°
S
183°
S
182°
S
182°
S
Period14.6 sec.14.5 sec.14.4 sec.14.4 sec.14.0 sec.13.7 sec.13.6 sec.13.7 sec.
Significant height0.9m (3ft)1.2m (3.9ft)1.3m (4.3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 05:57 and will set at 19:04 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 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 8.7mph km/h (with gusts up to 12.4mph). Wave height will be up to 3.3ft 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 (77°F)25°C (77°F)25°C (77°F)24°C (75°F)24°C (75°F)
Perceived temperature26°C (79°F)26°C (78°F)26°C (78°F)26°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%78%75%67%69%72%76%80%
Barometric pressure1014 hPa1013 hPa1014 hPa1014 hPa1014 hPa1013 hPa1014 hPa1015 hPa
Cloud cover74%66%37%29%44%51%52%78%
Heat index26°C (79°F)26°C (78°F)26°C (78°F)26°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)26°C (78°F)
Dew point20°C (68°F)20°C (67°F)19°C (66°F)18°C (65°F)19°C (66°F)19°C (67°F)20°C (67°F)20°C (68°F)
Wind
Speed9km/h (5mph)14km/h (9mph)10km/h (6mph)6km/h (4mph)14km/h (9mph)13km/h (8mph)13km/h (8mph)11km/h (7mph)
Gusts12km/h (8mph)20km/h (13mph)14km/h (9mph)8km/h (5mph)19km/h (12mph)17km/h (11mph)18km/h (11mph)14km/h (9mph)
Direction 346°
NNW
350°
N
241°
WSW
75°
ENE
209°
SSW
257°
WSW
316°
NW
308°
NW
Wind chill24°C (76°F)24°C (75°F)24°C (75°F)25°C (77°F)25°C (77°F)25°C (77°F)24°C (75°F)24°C (75°F)
Waves
Height0.9m (3.1ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)
Direction 182°
S
183°
S
183°
S
189°
S
200°
SSW
199°
SSW
199°
SSW
200°
SSW
Period13.6 sec.13.5 sec.13.4 sec.13.4 sec.13.3 sec.13.2 sec.13.0 sec.12.6 sec.
Significant height0.9m (3ft)1.0m (3.3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)
Sea water temperature
Water temperature26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 05:57 and will set at 19:04 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 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 6.2mph km/h (with gusts up to 12.4mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (74°F)23°C (74°F)24°C (75°F)23°C (73°F)22°C (71°F)24°C (75°F)24°C (75°F)24°C (75°F)
Perceived temperature26°C (78°F)25°C (78°F)26°C (78°F)24°C (76°F)22°C (71°F)26°C (78°F)26°C (78°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%81%79%75%71%77%78%78%
Barometric pressure1015 hPa1015 hPa1015 hPa1016 hPa1015 hPa1015 hPa1015 hPa1016 hPa
Cloud cover58%51%39%50%64%47%33%20%
Heat index26°C (78°F)25°C (78°F)26°C (78°F)24°C (76°F)23°C (73°F)26°C (78°F)26°C (78°F)26°C (78°F)
Dew point20°C (68°F)20°C (68°F)20°C (68°F)18°C (65°F)17°C (62°F)20°C (67°F)20°C (68°F)20°C (67°F)
Wind
Speed7km/h (4mph)6km/h (4mph)8km/h (5mph)9km/h (5mph)10km/h (6mph)8km/h (5mph)10km/h (6mph)9km/h (5mph)
Gusts9km/h (6mph)9km/h (6mph)11km/h (7mph)14km/h (9mph)20km/h (12mph)11km/h (7mph)14km/h (9mph)12km/h (8mph)
Direction 246°
WSW
173°
S
203°
SSW
246°
WSW
267°
W
225°
SW
165°
SSE
216°
SW
Wind chill24°C (74°F)23°C (74°F)24°C (75°F)23°C (73°F)22°C (71°F)24°C (75°F)24°C (75°F)24°C (75°F)
Waves
Height1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)
Direction 200°
SSW
200°
SSW
201°
SSW
200°
SSW
198°
SSW
200°
SSW
201°
SSW
200°
SSW
Period12.5 sec.12.4 sec.12.1 sec.14.4 sec.16.9 sec.11.1 sec.11.0 sec.10.7 sec.
Significant height0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)
Sea water temperature
Water temperature26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)26°C (80°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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