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Coast Guard surf Forecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 pm Wednesday 24 Apr 2024 HST
Forecast update in hr min s Update imminent
Coast Guard surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Coast Guard sea temperature is 24.5°C (Statistics for 24 Apr 1981-2005 - mean: 24.6 °C max: 25.8 °C min: 23.7 °C)
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Coast Guard surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Coast Guard sea temperature is 24.5°C (Statistics for 24 Apr 1981-2005 - mean: 24.6 °C max: 25.8 °C min: 23.7 °C)
How big are the waves at Coast Guard today?
The current surf forecast for Coast Guard at 1AM is: 2.0m 7s primary swell from a East-northeast direction (forecast issued at 07:00pm April 24). An open ocean swell of 0.3m 15s is not directed at the surf break, a second open ocean swell of 0.3m 14s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | 8ft (2.5m) | 8s |
| Afternoon (25 Apr) | 10ft (3.0m) | 8s |
| Evening (25 Apr) | 7ft (2.2m) | 7s |
Table - waves today at Coast Guard. (Swell directed towards the surf break)
Updates in hr min s Update imminent
Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 01 | Thu 02 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Swell Height Map |    |    |    |    |    |    |    |    |    | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 6 | 8 | 8 | 8 | 8 | 8 | 6 | 7 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 11 | 12 | 11 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Energy (?) | 522 | 531 | 417 | 417 | 655 | 725 | 779 | 835 | 758 | 557 | 462 | 344 | 314 | 264 | 339 | 540 | 654 | 572 | 481 | 507 | 438 | 408 | 456 | 509 | 481 | 512 | 414 | 373 | 302 | 273 | 322 | 357 | 339 | 0 | 341 | 310 | 310 | 322 | 383 | 300 | 302 | 212 | 306 | 273 | 197 | 167 | 202 | 284 | 13 | 13 | 13 | 244 | 244 | 244 | 344 | 485 | 498 | 372 | 8 | 7 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 2:59AM 0.48 | 4:29PM 0.84 | 3:17AM 0.44 | 5:10PM 0.83 | 3:30AM 0.40 | 5:59PM 0.81 | 3:20AM 0.37 | 6:59PM 0.79 | 8:11PM 0.77 | 9:24PM 0.77 | 10:25AM 0.32 | 10:26PM 0.77 | ||||||||||||||||||||||||||||||||||||||||||||||||
Low Tide / height (m) | 10:28PM 0.31 | 9:07AM 0.06 | 11:17PM 0.33 | 9:31AM 0.07 | 12:18AM 0.36 | 9:59AM 0.08 | 2:04AM 0.37 | 10:31AM 0.10 | 11:11AM 0.15 | 12:16PM 0.21 | 5:55AM 0.25 | 2:20PM 0.27 | ||||||||||||||||||||||||||||||||||||||||||||||||
Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 01 | Thu 02 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - |
| Sunset | 6:45 | - | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:46 | - | - | - |
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Rain (mm) | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 22 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 23 | 24 | 24 | 23 | 23 | 23 | 23 |
| Feels °C (?) | 19 | 19 | 18 | 17 | 17 | 16 | 17 | 17 | 18 | 17 | 17 | 18 | 18 | 19 | 19 | 19 | 20 | 19 | 20 | 20 | 21 | 21 | 20 | 21 | 20 | 21 | 21 | 21 | 18 | 19 | 21 | 21 | 20 | 21 | 21 | 20 | 20 | 20 | 21 | 21 | 20 | 20 | 20 | 21 | 19 | 20 | 21 | 21 | 22 | 20 | 21 | 21 | 19 | 20 | 21 | 20 | 19 | 19 | 19 | 19 |
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