Nazare Big Wave Challenge Gets Yellow Alert, Could Run Saturday in Giant Waves
70-foot plus waves predicted for Portuguese big wave tow surfing competition.
Surf Forecasts:
Army Beach surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Friday 12 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Army Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Army Beach sea temperature is
25.9° C
(Which is slightly warmer than usual)How big are the waves at Army Beach today?
The current surf forecast for Army Beach at 1PM is: 1.3m 11s primary swell from a Northwest direction and 1.0m 12s secondary swell from a North direction (forecast issued at 07:00am December 12). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 4.5ft (1.4m) | 11s |
| Afternoon (12 Dec) | 3.5ft (1.1m) | 12s |
| Evening (12 Dec) | 4.5ft (1.3m) | 11s |
Table - waves today at Army Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| 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) (?) | 11 | 11 | 11 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 16 | 15 | 10 | 14 | 14 | 13 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 694 | 524 | 382 | 333 | 390 | 410 | 410 | 540 | 520 | 501 | 441 | 377 | 318 | 250 | 200 | 129 | 206 | 266 | 564 | 1382 | 2050 | 2036 | 1756 | 1327 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | glass | glass | cross | glass | cross- off | off | 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 | off | off | off |
High Tide / height (m) | 9:03AM 0.45 | 12:33AM 0.47 | 9:40AM 0.39 | 1:04AM 0.54 | 10:23AM 0.33 | 1:33AM 0.60 | ||||||||||||||||||
Low Tide / height (m) | 3:27AM 0.35 | 4:47PM 0.11 | 6:10AM 0.36 | 5:10PM 0.09 | 8:04AM 0.32 | 5:34PM 0.08 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| Sunrise | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:51 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - |
 |  | | | | | | | | | | | |  | | | | | | |  | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | - | - | - | 1 | 1 | - | 1 |
| Temp. °C | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 23 | 24 | 25 | 25 | 25 | 24 | 24 | 24 |
| Feels °C (?) | 22 | 23 | 24 | 23 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 25 | 23 | 23 | 23 | 25 | 26 | 25 | 25 | 25 | 25 | 26 |
- Map Icons:
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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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