Using Surf-Forecast’s Historical Surf Data To Find The Cleanest Waves On Earth
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The Cove surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Wednesday 21 Jan 2026 HSTForecast update in hr min s Forecast update imminent
The Cove surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Cove sea temperature is
24.8° C
(Which is slightly warmer than usual)How big are the waves at The Cove today?
The current surf forecast for The Cove at 2PM is: 0.9m 7s primary swell from a East-northeast direction (forecast issued at 07:00am January 21). An open ocean swell of 1.2m 15s is not directed at the surf break, a second open ocean swell of 0.5m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jan) | 2ft (0.6m) | 8s |
| Afternoon (21 Jan) | 3ft (0.9m) | 7s |
| Evening (21 Jan) | 2.5ft (0.8m) | 7s |
Table - waves today at The Cove. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 21 | Thursday 22 | Friday 23 | Sat 24 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 7 | 7 | 7 | 15 | 15 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 14 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 40 | 40 | 41 | 86 | 73 | 71 | 71 | 66 | 108 | 108 | 91 | 108 | 104 | 107 | 99 | 99 | 102 | 57 | 30 | 31 | 110 | 92 | 63 | 61 |
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 | cross- off | cross- off | cross- off | cross- off | cross | cross- on | on | cross- on | cross- on | cross- on |
High Tide / height (m) | 5:30AM 0.73 | 5:50PM 0.38 | 5:57AM 0.68 | 6:45PM 0.42 | 6:23AM 0.61 | 7:50PM 0.46 | ||||||||||||||||||
Low Tide / height (m) | 12:29PM 0.12 | 11:05PM 0.14 | 12:54PM 0.11 | 11:54PM 0.22 | 1:21PM 0.10 | 12:59AM 0.29 | ||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | Sat 24 | |||||||||||||||||||||
| Sunrise | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:15 | - | - | - | - | - | - | - | 6:15 | - | - | - | - | - | - | - | 6:15 | - | - | - |
 |  |  | | |  | | |  | | | | | | | | | | |  | | | | | |
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | - | - | - |
| Temp. °C | 20 | 21 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 23 | 24 | 23 | 22 | 22 | 22 | 21 | 22 | 22 | 23 | 21 | 22 | 22 | 22 |
| Feels °C (?) | 16 | 17 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 22 | 21 | 21 | 23 | 23 | 21 | 23 | 21 | 22 | 20 | 22 | 22 | 22 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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