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Surf Forecasts:
Generals surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 am Monday 15 Sep 2025 HST
How big are the waves at Generals today?
The current surf forecast for Generals at 10AM is: 0.4m 13s primary swell from a South-southwest direction and 0.2m 4s secondary swell from a South direction (forecast issued at 07:00am September 15). An open ocean swell of 0.5m 10s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 1.5ft (0.4m) | 13s |
| Afternoon (15 Sep) | 1.5ft (0.4m) | 14s |
| Evening (15 Sep) | 1.5ft (0.4m) | 12s |
Table - waves today at Generals. (Swell directed towards the surf break)
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| 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) (?) | 13 | 13 | 13 | 13 | 14 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 15 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 76 | 71 | 73 | 71 | 85 | 39 | 57 | 36 | 65 | 64 | 88 | 71 | 68 | 65 | 59 | 56 | 46 | 57 | 57 | 49 | 46 | 42 | 70 | 63 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | on | on | on | cross- on | glass | cross | cross | glass | on | on | on | on | on | cross- on | on | cross- on | on | cross- on | on | cross- on | on | cross- on |
High Tide / height (m) | 11:21AM 0.70 | 11:47PM 0.24 | 12:20PM 0.71 | 12:50AM 0.29 | 1:08PM 0.71 | 1:35AM 0.34 | ||||||||||||||||||
Low Tide / height (m) | 3:12AM 0.11 | 7:12PM 0.13 | 4:40AM 0.11 | 7:48PM 0.11 | 5:54AM 0.10 | 8:17PM 0.09 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| Sunrise | - | 6:11 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:25 | - | - | - | - | - | - | - | 6:24 | - | - | - | - | - | - | - | 6:23 | - | - | - |
 |  | | | |  | | | |  | | | | | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 25 | 26 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 25 |
| Feels °C (?) | 28 | 29 | 28 | 27 | 28 | 28 | 28 | 27 | 27 | 29 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 28 | 28 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Big Island
Continuing clean conditions at Generals (calm at Kailua Kona 3 km from Generals). 0.4m 9s swell from the WNW with a 0.3m 9s swell from the W and a 0.2m 3s local chop from the WNW. 3 swells combining to make bigger set waves.
Actual: 45 min ago
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