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Kahalu'u surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 am Sunday 30 Nov 2025 HSTForecast update in hr min s Forecast update imminent
Kahalu'u surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kahalu'u sea temperature is
26.3° C
(Which is slightly warmer than usual)How big are the waves at Kahalu'u today?
The current surf forecast for Kahalu'u at 10AM is: 1.9m 17s primary swell from a West-northwest direction and 0.2m 10s secondary swell from a South direction (forecast issued at 07:00am November 30). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Nov) | 6ft (1.9m) | 17s |
| Afternoon (30 Nov) | 6ft (1.9m) | 17s |
| Evening (30 Nov) | 5.5ft (1.7m) | 16s |
Table - waves today at Kahalu'u. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 30 | Monday 01 | Tuesday 02 | Wed 03 | |||||||||||||||||||||
| 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) (?) | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 13 | 10 | 12 | 11 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1952 | 2113 | 2017 | 2041 | 1900 | 1631 | 1373 | 1224 | 955 | 893 | 711 | 606 | 350 | 401 | 186 | 309 | 117 | 178 | 88 | 81 | 69 | 91 | 91 | 119 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | on | cross- on | on | glass | cross | glass | glass | cross- on | cross- on | glass | glass | glass | glass | glass | on | on | on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 11:29AM 0.51 | 1:16AM 0.73 | 12:27PM 0.45 | 1:58AM 0.83 | 1:22PM 0.40 | |||||||||||||||||||
Low Tide / height (m) | 6:27AM 0.32 | 6:04PM 0.05 | 7:44AM 0.27 | 6:40PM 0.02 | 8:47AM 0.21 | 7:17PM -0.01 | ||||||||||||||||||
Sunday 30 | Monday 01 | Tuesday 02 | Wed 03 | |||||||||||||||||||||
| Sunrise | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:44 | - | - | - | - | - | - | - | 5:44 | - | - | - |
 |  |  | | | |  | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 |
| Feels °C (?) | 26 | 26 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 24 | 24 | 24 | 24 |
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Ocean Swells (m)- Wind Speed (km/h)
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