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:
Ewa Beach Park surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Saturday 13 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Ewa Beach Park surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ewa Beach Park sea temperature is
25.9° C
(Which is slightly warmer than usual)How big are the waves at Ewa Beach Park today?
The current surf forecast for Ewa Beach Park at 12AM is: 1.0m 6s primary swell from a West-southwest direction and 0.6m 5s secondary swell from a South-southeast direction (forecast issued at 07:00pm December 13). An open ocean swell of 0.3m 10s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | - | - |
| Afternoon (14 Dec) | 3.5ft (1.0m) | 4s |
| Evening (14 Dec) | 3.5ft (1.1m) | 5s |
Table - waves today at Ewa Beach Park. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 4 | 5 | 5 | 5 | 5 | 5 | 8 | 4 | 8 | 8 | 8 | 14 | 8 | 8 | 8 | 8 | 4 | 5 | 5 | 5 | 8 | 5 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 39 | 61 | 55 | 18 | 18 | 13 | 0 | 6 | 10 | 10 | 10 | 33 | 23 | 10 | 34 | 13 | 17 | 21 | 22 | 21 | 18 | 19 | 46 | 81 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross | cross- off | glass | cross- on | cross- on | cross- on | cross- on | glass | cross- on | on | on | on | on | on | on | on | cross- on | cross- on | on | on | cross- on |
High Tide / height (m) | 12:59AM 0.58 | 11:12AM 0.36 | 1:33AM 0.64 | 12:10PM 0.32 | 2:06AM 0.69 | 1:03PM 0.30 | ||||||||||||||||||
Low Tide / height (m) | 5:21PM 0.10 | 7:39AM 0.32 | 5:51PM 0.09 | 8:42AM 0.28 | 6:21PM 0.08 | 9:26AM 0.24 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - |
| Sunset | 5:51 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - |
 |  | | | |  |  | | | | | | | |  | | |  |  | | | | | | |
Rain (mm) | - | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | 1 | - | - | - | - | - | - | - |
| Temp. °C | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 26 |
| Feels °C (?) | 24 | 24 | 23 | 24 | 25 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 24 | 25 | 25 | 25 | 24 | 26 | 25 |
- 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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