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:
Kalama surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 pm Wednesday 10 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Kalama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kalama sea temperature is
25.7° C
(Which is slightly warmer than usual)How big are the waves at Kalama today?
The current surf forecast for Kalama at 5PM is: 1.7m 14s primary swell from a North-northwest direction and 0.7m 8s secondary swell from a East direction (forecast issued at 01:00pm December 10). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 3.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 6ft (1.8m) | 16s |
| Afternoon (10 Dec) | 5.5ft (1.7m) | 14s |
| Evening (10 Dec) | 5ft (1.6m) | 14s |
Table - waves today at Kalama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 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) (?) | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1453 | 1220 | 1111 | 975 | 792 | 689 | 668 | 914 | 1012 | 965 | 703 | 545 | 464 | 421 | 414 | 278 | 179 | 271 | 327 | 300 | 351 | 407 | 400 | 400 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 7:44PM 0.38 | 7:40AM 0.70 | 10:27PM 0.46 | 8:16AM 0.64 | 11:45PM 0.56 | |||||||||||||||||||
Low Tide / height (m) | 3:00PM 0.31 | 11:47PM 0.34 | 3:36PM 0.27 | 1:18AM 0.44 | 4:07PM 0.23 | 4:01AM 0.50 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 |
| Sunset | - | - | 5:49 | - | - | - | - | - | - | - | 5:49 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - |
 | | |  | | |  |  | |  |  |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 4 | 3 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 26 | 25 | 24 | 24 | 24 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 |
| Feels °C (?) | 25 | 24 | 24 | 24 | 23 | 24 | 22 | 22 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 25 | 24 | 24 | 24 | 24 |
- 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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