Sea weather in Kailua in Hawaii All the beach weather in Kailua
All the essential weather information for enjoying the beach in Kailua 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 Kailua over the next 7 days?
Discover the best moment to go to the beach in Kailua in Hawaii this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Kailua. You can see full forecasts by clicking on the day you want to see in the table below.
| Date | Outside temp. | Max wind | Our opinion | Details |
|---|---|---|---|---|
| Friday 12 December 2025 | 70°F to 74°F | 6.2mph | recommended | all the sea weather |
| Saturday 13 December 2025 | 70°F to 77°F | 9.3mph | discouraged | all the sea weather |
| Sunday 14 December 2025 | 74°F to 77°F | 6.8mph | recommended | all the sea weather |
| Monday 15 December 2025 | 70°F to 76°F | 9.3mph | recommended | all the sea weather |
| Tuesday 16 December 2025 | 74°F to 76°F | 1.2mph | recommended | all the sea weather |
| Wednesday 17 December 2025 | 70°F to 77°F | 5.6mph | recommended | all the sea weather |
| Thursday 18 December 2025 | 74°F to 77°F | 8.1mph | recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Kailua
Sea weather on Friday 12 December 2025
On Friday 12 December 2025, the sun will rise at 07:00 and will set at 17:51 on the beach(es) of Kailua. 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 9.9mph). Wave height will be up to 4.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | |  |  | | | |
| Outside temperature | 22°C (72°F) | 22°C (72°F) | 22°C (72°F) | 23°C (73°F) | 21°C (70°F) | 23°C (73°F) | 22°C (72°F) | 23°C (73°F) |
| Perceived temperature | 25°C (76°F) | 25°C (76°F) | 25°C (76°F) | 25°C (77°F) | 21°C (70°F) | 25°C (76°F) | 25°C (76°F) | 25°C (77°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 66% | 66% | 63% | 59% | 59% | 61% | 67% | 72% |
| Barometric pressure | 1012 hPa | 1012 hPa | 1012 hPa | 1013 hPa | 1012 hPa | 1010 hPa | 1011 hPa | 1013 hPa |
| Cloud cover | 48% | 59% | 4% | 1% | 0% | 6% | 11% | 7% |
| Heat index | 25°C (76°F) | 25°C (76°F) | 25°C (76°F) | 25°C (77°F) | 24°C (76°F) | 25°C (76°F) | 25°C (76°F) | 25°C (77°F) |
| Dew point | 16°C (60°F) | 15°C (60°F) | 15°C (58°F) | 14°C (58°F) | 13°C (55°F) | 15°C (58°F) | 16°C (60°F) | 18°C (64°F) |
| Wind | ||||||||
| Speed | 12km/h (7mph) | 9km/h (5mph) | 7km/h (4mph) | 6km/h (4mph) | 5km/h (3mph) | 8km/h (5mph) | 8km/h (5mph) | 10km/h (6mph) |
| Gusts | 16km/h (10mph) | 12km/h (7mph) | 10km/h (6mph) | 8km/h (5mph) | 10km/h (6mph) | 12km/h (8mph) | 13km/h (8mph) | 15km/h (10mph) |
| Direction | 332° NNW | 348° NNW | 321° NW | 341° NNW | 50° NE | 103° ESE | 103° ESE | 137° SE |
| Wind chill | 22°C (72°F) | 22°C (72°F) | 22°C (72°F) | 23°C (73°F) | 21°C (70°F) | 23°C (73°F) | 22°C (72°F) | 23°C (73°F) |
| Waves | ||||||||
| Height | 1.5m (5.0ft) | 1.5m (4.9ft) | 1.4m (4.7ft) | 1.4m (4.6ft) | 1.4m (4.6ft) | 1.4m (4.6ft) | 1.4m (4.7ft) | 1.4m (4.7ft) |
| Direction | 324° NW | 326° NW | 328° NNW | 332° NNW | 333° NNW | 334° NNW | 338° NNW | 342° NNW |
| Period | 11.7 sec. | 11.6 sec. | 11.5 sec. | 11.5 sec. | 11.2 sec. | 11.3 sec. | 10.6 sec. | 10.8 sec. |
| Significant height | 0.2m (0.7ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 1.1m (3.6ft) | 0.7m (2.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 25°C (78°F) |
Sea weather on Saturday 13 December 2025
On Saturday 13 December 2025, the sun will rise at 07:01 and will set at 17:51 on the beach(es) of Kailua. 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 15.5mph km/h (with gusts up to 19.3mph). Wave height will be up to 4.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | |  | | | | | | |
| Outside temperature | 23°C (73°F) | 23°C (73°F) | 23°C (73°F) | 24°C (75°F) | 22°C (71°F) | 24°C (74°F) | 24°C (75°F) | 24°C (75°F) |
| Perceived temperature | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 26°C (78°F) | 22°C (71°F) | 25°C (78°F) | 26°C (78°F) | 26°C (79°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 82% | 83% | 72% | 67% | 69% | 79% | 81% |
| Barometric pressure | 1012 hPa | 1011 hPa | 1011 hPa | 1013 hPa | 1011 hPa | 1010 hPa | 1011 hPa | 1013 hPa |
| Cloud cover | 21% | 89% | 87% | 5% | 0% | 1% | 81% | 88% |
| Heat index | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 26°C (78°F) | 25°C (76°F) | 25°C (78°F) | 26°C (78°F) | 26°C (79°F) |
| Dew point | 19°C (65°F) | 19°C (67°F) | 20°C (67°F) | 19°C (66°F) | 16°C (60°F) | 18°C (64°F) | 20°C (68°F) | 20°C (69°F) |
| Wind | ||||||||
| Speed | 11km/h (7mph) | 13km/h (8mph) | 11km/h (7mph) | 19km/h (12mph) | 23km/h (15mph) | 25km/h (16mph) | 19km/h (12mph) | 15km/h (9mph) |
| Gusts | 16km/h (10mph) | 20km/h (12mph) | 16km/h (10mph) | 25km/h (16mph) | 24km/h (15mph) | 26km/h (16mph) | 31km/h (19mph) | 22km/h (14mph) |
| Direction | 163° SSE | 186° S | 235° SW | 196° SSW | 201° SSW | 201° SSW | 203° SSW | 208° SSW |
| Wind chill | 23°C (73°F) | 23°C (73°F) | 23°C (73°F) | 24°C (75°F) | 22°C (71°F) | 24°C (74°F) | 24°C (75°F) | 24°C (75°F) |
| Waves | ||||||||
| Height | 1.4m (4.8ft) | 1.5m (4.8ft) | 1.5m (4.9ft) | 1.5m (4.8ft) | 1.4m (4.7ft) | 1.4m (4.6ft) | 1.3m (4.2ft) | 1.2m (3.8ft) |
| Direction | 340° NNW | 343° NNW | 346° NNW | 348° NNW | 348° NNW | 351° N | 351° N | 354° N |
| Period | 10.5 sec. | 10.4 sec. | 10.3 sec. | 10.2 sec. | 10.1 sec. | 9.9 sec. | 10.2 sec. | 10.2 sec. |
| Significant height | 0.3m (1ft) | 0.2m (0.7ft) | 0.3m (1ft) | 0.7m (2.3ft) | 0.4m (1.3ft) | 0.7m (2.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 25°C (78°F) |
Sea weather on Sunday 14 December 2025
On Sunday 14 December 2025, the sun will rise at 07:01 and will set at 17:52 on the beach(es) of Kailua. 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 11.2mph km/h (with gusts up to 17.4mph). Wave height will be up to 5.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | |  | | | |
| Outside temperature | 24°C (75°F) | 24°C (74°F) | 23°C (74°F) | 24°C (75°F) | 25°C (76°F) | 25°C (77°F) | 24°C (76°F) | 24°C (75°F) |
| Perceived temperature | 26°C (78°F) | 25°C (78°F) | 25°C (77°F) | 26°C (78°F) | 26°C (79°F) | 27°C (80°F) | 26°C (79°F) | 26°C (79°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 82% | 81% | 82% | 77% | 71% | 72% | 77% | 79% |
| Barometric pressure | 1013 hPa | 1011 hPa | 1012 hPa | 1014 hPa | 1012 hPa | 1011 hPa | 1012 hPa | 1014 hPa |
| Cloud cover | 84% | 79% | 12% | 7% | 71% | 82% | 58% | 69% |
| Heat index | 26°C (78°F) | 25°C (78°F) | 25°C (77°F) | 26°C (78°F) | 26°C (79°F) | 27°C (80°F) | 26°C (79°F) | 26°C (79°F) |
| Dew point | 21°C (69°F) | 20°C (68°F) | 20°C (68°F) | 20°C (67°F) | 19°C (66°F) | 20°C (67°F) | 20°C (68°F) | 20°C (68°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 12km/h (8mph) | 9km/h (6mph) | 9km/h (5mph) | 13km/h (8mph) | 18km/h (11mph) | 15km/h (9mph) | 11km/h (7mph) |
| Gusts | 21km/h (13mph) | 18km/h (11mph) | 14km/h (9mph) | 12km/h (7mph) | 20km/h (12mph) | 28km/h (17mph) | 23km/h (14mph) | 16km/h (10mph) |
| Direction | 214° SW | 217° SW | 223° SW | 196° SSW | 168° SSE | 179° S | 181° S | 182° S |
| Wind chill | 24°C (75°F) | 24°C (74°F) | 23°C (74°F) | 24°C (75°F) | 25°C (76°F) | 25°C (77°F) | 24°C (76°F) | 24°C (75°F) |
| Waves | ||||||||
| Height | 1.1m (3.6ft) | 1.1m (3.5ft) | 1.1m (3.6ft) | 1.1m (3.7ft) | 1.3m (4.3ft) | 1.6m (5.2ft) | 1.8m (5.8ft) | 1.8m (5.9ft) |
| Direction | 356° N | 354° N | 350° N | 314° NW | 315° NW | 319° NW | 319° NW | 322° NW |
| Period | 10.2 sec. | 10.0 sec. | 9.8 sec. | 9.8 sec. | 11.5 sec. | 13.8 sec. | 13.4 sec. | 12.9 sec. |
| Significant height | 1.0m (3.3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 23°C (74°F) |
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 07:02 and will set at 17:52 on the beach(es) of Kailua. The outside temperature will be a high of 76°F t and a low of 70°F. Precipitation is in the forecast (0.3in 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 9.9mph km/h (with gusts up to 14.3mph). Wave height will be up to 7.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | |  |  | | | | |
| Outside temperature | 24°C (75°F) | 24°C (74°F) | 23°C (74°F) | 23°C (73°F) | 22°C (71°F) | 22°C (72°F) | 23°C (73°F) | 24°C (74°F) |
| Perceived temperature | 26°C (79°F) | 26°C (78°F) | 25°C (77°F) | 25°C (77°F) | 22°C (71°F) | 25°C (76°F) | 25°C (77°F) | 26°C (78°F) |
| Precipitation | 0in | 0in | 0.1in | 0.1in | 0in | 0in | 0in | 0in |
| Humidity | 82% | 85% | 83% | 82% | 84% | 80% | 80% | 81% |
| Barometric pressure | 1013 hPa | 1012 hPa | 1013 hPa | 1016 hPa | 1015 hPa | 1013 hPa | 1013 hPa | 1015 hPa |
| Cloud cover | 88% | 82% | 57% | 91% | 73% | 51% | 28% | 76% |
| Heat index | 26°C (79°F) | 26°C (78°F) | 25°C (77°F) | 25°C (77°F) | 24°C (76°F) | 25°C (76°F) | 25°C (77°F) | 26°C (78°F) |
| Dew point | 21°C (69°F) | 21°C (70°F) | 20°C (68°F) | 19°C (67°F) | 19°C (66°F) | 19°C (65°F) | 19°C (66°F) | 20°C (68°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 16km/h (10mph) | 13km/h (8mph) | 7km/h (4mph) | 15km/h (9mph) | 16km/h (10mph) | 13km/h (8mph) | 15km/h (9mph) |
| Gusts | 20km/h (12mph) | 23km/h (14mph) | 21km/h (13mph) | 11km/h (7mph) | 21km/h (13mph) | 23km/h (14mph) | 20km/h (13mph) | 23km/h (15mph) |
| Direction | 169° S | 171° S | 185° S | 230° SW | 177° S | 176° S | 179° S | 169° S |
| Wind chill | 24°C (75°F) | 24°C (74°F) | 23°C (74°F) | 23°C (73°F) | 22°C (71°F) | 22°C (72°F) | 23°C (73°F) | 24°C (74°F) |
| Waves | ||||||||
| Height | 1.8m (6.0ft) | 1.9m (6.2ft) | 2.0m (6.5ft) | 2.0m (6.6ft) | 2.0m (6.7ft) | 2.2m (7.1ft) | 2.2m (7.4ft) | 2.2m (7.2ft) |
| Direction | 328° NNW | 335° NNW | 341° NNW | 345° NNW | 351° N | 354° N | 357° N | 359° N |
| Period | 12.5 sec. | 12.5 sec. | 12.5 sec. | 13.3 sec. | 13.9 sec. | 13.8 sec. | 14.2 sec. | 14.0 sec. |
| Significant height | 0.5m (1.6ft) | 0.6m (2ft) | 0.8m (2.6ft) | 0.4m (1.3ft) | 0.1m (0.3ft) | 0.8m (2.6ft) | 0.9m (3ft) | 0.7m (2.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 25°C (78°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 07:02 and will set at 17:52 on the beach(es) of Kailua. 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 10.6mph km/h (with gusts up to 14.9mph). Wave height will be up to 6.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 24°C (75°F) | 24°C (74°F) | 23°C (74°F) | 24°C (75°F) | 24°C (76°F) | 23°C (73°F) | 23°C (74°F) | 24°C (75°F) |
| Perceived temperature | 26°C (78°F) | 25°C (78°F) | 25°C (78°F) | 26°C (79°F) | 26°C (79°F) | 25°C (77°F) | 25°C (78°F) | 26°C (79°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 81% | 81% | 82% | 80% | 77% | 74% | 77% | 80% |
| Barometric pressure | 1015 hPa | 1014 hPa | 1015 hPa | 1017 hPa | 1015 hPa | 1012 hPa | 1013 hPa | 1015 hPa |
| Cloud cover | 58% | 55% | 34% | 23% | 24% | 9% | 9% | 10% |
| Heat index | 26°C (78°F) | 25°C (78°F) | 25°C (78°F) | 26°C (79°F) | 26°C (79°F) | 25°C (77°F) | 25°C (78°F) | 26°C (79°F) |
| Dew point | 20°C (68°F) | 20°C (68°F) | 20°C (68°F) | 20°C (69°F) | 20°C (68°F) | 18°C (64°F) | 19°C (67°F) | 20°C (68°F) |
| Wind | ||||||||
| Speed | 12km/h (8mph) | 14km/h (9mph) | 11km/h (7mph) | 14km/h (9mph) | 17km/h (11mph) | 11km/h (7mph) | 3km/h (2mph) | 2km/h (1mph) |
| Gusts | 18km/h (11mph) | 21km/h (13mph) | 16km/h (10mph) | 19km/h (12mph) | 24km/h (15mph) | 21km/h (13mph) | 5km/h (3mph) | 3km/h (2mph) |
| Direction | 157° SSE | 139° SE | 122° ESE | 133° SE | 126° SE | 136° SE | 175° S | 221° SW |
| Wind chill | 24°C (75°F) | 24°C (74°F) | 23°C (74°F) | 24°C (75°F) | 24°C (76°F) | 23°C (73°F) | 23°C (74°F) | 24°C (75°F) |
| Waves | ||||||||
| Height | 2.0m (6.7ft) | 2.0m (6.7ft) | 1.9m (6.4ft) | 1.8m (5.9ft) | 1.7m (5.6ft) | 1.8m (5.8ft) | 1.8m (5.9ft) | 1.8m (5.9ft) |
| Direction | 0° N | 0° N | 358° N | 359° N | 0° N | 180° S | 61° ENE | 22° NNE |
| Period | 13.6 sec. | 13.4 sec. | 13.2 sec. | 12.8 sec. | 12.6 sec. | 12.2 sec. | 12.1 sec. | 12.1 sec. |
| Significant height | 1.0m (3.3ft) | 1.1m (3.6ft) | 1.0m (3.3ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.8m (2.6ft) | 1.0m (3.3ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 23°C (74°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 07:03 and will set at 17:53 on the beach(es) of Kailua. 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 8.1mph km/h (with gusts up to 12.4mph). Wave height will be up to 5.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | |  | | | |  | | |
| Outside temperature | 24°C (75°F) | 23°C (74°F) | 23°C (74°F) | 23°C (73°F) | 22°C (72°F) | 25°C (77°F) | 25°C (76°F) | 24°C (75°F) |
| Perceived temperature | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 24°C (75°F) | 23°C (73°F) | 27°C (80°F) | 26°C (80°F) | 26°C (79°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 82% | 83% | 83% | 79% | 73% | 76% | 78% | 81% |
| Barometric pressure | 1014 hPa | 1013 hPa | 1013 hPa | 1014 hPa | 1013 hPa | 1012 hPa | 1013 hPa | 1014 hPa |
| Cloud cover | 10% | 13% | 13% | 9% | 29% | 68% | 75% | 57% |
| Heat index | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 24°C (75°F) | 23°C (73°F) | 27°C (80°F) | 26°C (80°F) | 26°C (79°F) |
| Dew point | 20°C (69°F) | 21°C (69°F) | 20°C (69°F) | 19°C (66°F) | 17°C (63°F) | 20°C (69°F) | 21°C (69°F) | 21°C (69°F) |
| Wind | ||||||||
| Speed | 9km/h (6mph) | 11km/h (7mph) | 10km/h (6mph) | 10km/h (6mph) | 11km/h (7mph) | 13km/h (8mph) | 12km/h (8mph) | 9km/h (6mph) |
| Gusts | 14km/h (8mph) | 16km/h (10mph) | 15km/h (10mph) | 17km/h (11mph) | 20km/h (12mph) | 19km/h (12mph) | 18km/h (11mph) | 14km/h (9mph) |
| Direction | 168° SSE | 189° S | 190° S | 181° S | 168° SSE | 159° SSE | 166° SSE | 162° SSE |
| Wind chill | 24°C (75°F) | 23°C (74°F) | 23°C (74°F) | 23°C (73°F) | 22°C (72°F) | 25°C (77°F) | 25°C (76°F) | 24°C (75°F) |
| Waves | ||||||||
| Height | 1.8m (5.9ft) | 1.8m (5.9ft) | 1.7m (5.6ft) | 1.7m (5.6ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) |
| Direction | 9° N | 121° ESE | 358° N | 240° WSW | 120° ESE | 358° N | 353° N | 351° N |
| Period | 12.2 sec. | 12.5 sec. | 12.9 sec. | 13.0 sec. | 13.0 sec. | 12.9 sec. | 12.7 sec. | 12.5 sec. |
| Significant height | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.6m (2ft) | 0.7m (2.3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 23°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 Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 07:04 and will set at 17:53 on the beach(es) of Kailua. 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 10.6mph km/h (with gusts up to 16.8mph). Wave height will be up to 5.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 24°C (74°F) | 23°C (74°F) | 23°C (74°F) | 24°C (75°F) | 24°C (75°F) | 23°C (73°F) | 24°C (75°F) | 24°C (75°F) |
| Perceived temperature | 26°C (78°F) | 25°C (78°F) | 25°C (78°F) | 26°C (78°F) | 26°C (79°F) | 25°C (77°F) | 26°C (78°F) | 26°C (78°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 83% | 83% | 83% | 79% | 74% | 74% | 77% | 81% |
| Barometric pressure | 1014 hPa | 1013 hPa | 1013 hPa | 1014 hPa | 1014 hPa | 1012 hPa | 1013 hPa | 1015 hPa |
| Cloud cover | 34% | 22% | 26% | 26% | 22% | 10% | 7% | 8% |
| Heat index | 26°C (78°F) | 25°C (78°F) | 25°C (78°F) | 26°C (78°F) | 26°C (79°F) | 25°C (77°F) | 26°C (78°F) | 26°C (78°F) |
| Dew point | 20°C (69°F) | 20°C (69°F) | 20°C (68°F) | 20°C (68°F) | 19°C (66°F) | 18°C (65°F) | 19°C (67°F) | 20°C (69°F) |
| Wind | ||||||||
| Speed | 10km/h (6mph) | 9km/h (6mph) | 9km/h (5mph) | 10km/h (6mph) | 13km/h (8mph) | 17km/h (11mph) | 15km/h (10mph) | 13km/h (8mph) |
| Gusts | 14km/h (9mph) | 14km/h (9mph) | 13km/h (8mph) | 14km/h (9mph) | 18km/h (11mph) | 23km/h (14mph) | 27km/h (17mph) | 19km/h (12mph) |
| Direction | 163° SSE | 195° SSW | 205° SSW | 189° S | 169° S | 156° SSE | 157° SSE | 174° S |
| Wind chill | 24°C (74°F) | 23°C (74°F) | 23°C (74°F) | 24°C (75°F) | 24°C (75°F) | 23°C (73°F) | 24°C (75°F) | 24°C (75°F) |
| Waves | ||||||||
| Height | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.5m (4.9ft) |
| Direction | 354° N | 355° N | 354° N | 354° N | 355° N | 357° N | 357° N | 357° N |
| Period | 12.5 sec. | 12.6 sec. | 12.8 sec. | 12.7 sec. | 12.5 sec. | 12.4 sec. | 12.4 sec. | 12.4 sec. |
| Significant height | 0.5m (1.6ft) | 0.6m (2ft) | 0.8m (2.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 25°C (78°F) |