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Kahalu'u surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 1 am Thursday 01 May 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
25.9° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Kahalu'u today?
The current surf forecast for Kahalu'u at 5AM is: 0.7m 17s primary swell from a South-southwest direction and 0.4m 13s secondary swell from a South direction (forecast issued at 01:00am May 01). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 May) | 2.5ft (0.7m) | 16s |
| Afternoon (01 May) | 2.5ft (0.8m) | 16s |
| Evening (01 May) | 2.5ft (0.7m) | 16s |
Table - waves today at Kahalu'u. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Swell Height Map |  |    |    |    |    |    |    |    |    | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 17 | 18 | 16 | 16 | 16 | 15 | 16 | 16 | 16 | 20 | 20 | 19 | 18 | 18 | 18 | 18 | 18 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 15 | 16 | 16 | 16 | 16 | 13 | 16 | 14 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Energy (?) | 413 | 408 | 307 | 193 | 346 | 341 | 337 | 263 | 253 | 218 | 284 | 280 | 280 | 276 | 160 | 138 | 131 | 138 | 97 | 109 | 91 | 89 | 91 | 59 | 64 | 169 | 169 | 194 | 127 | 124 | 109 | 162 | 160 | 104 | 103 | 89 | 86 | 86 | 86 | 50 | 49 | 42 | 51 | 42 | 42 | 42 | 41 | 41 | 39 | 39 | 40 | 45 | 26 | 26 | 26 | 26 | 35 | 51 | 65 | 73 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross- on | cross- on | on | cross- on | cross- on | on | on | glass | cross- off | cross- off | cross- on | on | cross- on | cross- off | cross | cross- on | cross- on | glass | cross | cross- on | on | on | glass | cross- off | glass | cross- on | on | cross- on | on | cross- on | on | glass | glass | glass | on | on | cross | cross | cross- on | cross- on | glass | cross- off | cross- on | on | on | cross- off | cross- off | on | cross- on | cross- on | cross- on | cross | cross | cross- on | on | cross- off | cross- off | on |
High Tide / height (m) | 6:00AM 0.28 | 7:18PM 0.80 | 7:14AM 0.25 | 8:20PM 0.74 | 9:15AM 0.26 | 9:27PM 0.69 | 11:17AM 0.32 | 10:32PM 0.65 | 12:22PM 0.40 | 11:28PM 0.61 | 1:04PM 0.48 | 12:14AM 0.57 | 1:37PM 0.56 | 12:55AM 0.54 | ||||||||||||||||||||||||||||||||||||||||||||||
Low Tide / height (m) | 1:58AM 0.19 | 11:22AM 0.08 | 3:20AM 0.19 | 12:08PM 0.14 | 4:37AM 0.18 | 1:13PM 0.21 | 5:32AM 0.16 | 3:00PM 0.27 | 6:09AM 0.14 | 4:53PM 0.30 | 6:36AM 0.13 | 6:18PM 0.29 | 6:59AM 0.11 | 7:22PM 0.27 | 7:20AM 0.10 | |||||||||||||||||||||||||||||||||||||||||||||
Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sunrise | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:50 |
| Sunset | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:47 | - | - | - | - | - | - | - | 6:47 | - | - | - | - | - | - | - | 6:49 | - | - | - | - | - |
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Rain (mm) | 1 | 1 | - | - | - | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | - | - | - | - | - | - | 1 | - | - | - | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Temp. °C | 24 | 24 | 24 | 25 | 26 | 25 | 25 | 25 | 25 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 25 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 25 | 25 | 24 | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 24 |
| Feels °C (?) | 27 | 27 | 26 | 27 | 28 | 26 | 27 | 27 | 27 | 27 | 26 | 27 | 26 | 27 | 27 | 27 | 26 | 26 | 24 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 25 | 26 | 28 | 27 | 25 | 26 | 27 | 27 | 27 | 27 | 28 | 27 | 26 | 26 | 25 | 27 | 26 | 27 | 25 | 26 | 27 | 26 | 25 | 24 | 24 | 27 | 26 | 26 | 25 | 26 | 26 | 24 | 26 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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