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:
Jam's Right surfForecast / Mainland / Tanzania
48hr Weather and Surf, issued 8 pm Tuesday 16 Dec 2025 EATForecast update in hr min s Forecast update imminent
Jam's Right surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Jam's Right sea temperature is
29.3° C
(Which is slightly warmer than usual)How big are the waves at Jam's Right today?
The current surf forecast for Jam's Right at 12AM is: 0.4m 8s primary swell from a East-southeast direction and 0.1m 7s secondary swell from a East direction (forecast issued at 08:00pm December 16). The wind direction is predicted to be cross-shore.
| Time (EAT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 1.5ft (0.4m) | 8s |
| Afternoon (17 Dec) | 1.5ft (0.5m) | 8s |
| Evening (17 Dec) | 2.5ft (0.7m) | 8s |
Table - waves today at Jam's Right. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tue 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 19 | 20 | 21 | 20 | 19 | 19 | 29 | 31 | 45 | 58 | 42 | 42 | 42 | 43 | 41 | 108 | 86 | 46 | 35 | 24 | 23 | 14 | 14 | 14 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross- off | glass | glass | on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- off | cross- on | on | cross- on | cross- on | cross- on | cross- on | glass | glass | cross- on | on |
High Tide / height (m) | 2:23AM 2.86 | 2:56PM 2.39 | 3:01AM 2.99 | 3:33PM 2.49 | 3:37AM 3.10 | |||||||||||||||||||
Low Tide / height (m) | 7:53PM 0.94 | 8:50AM 0.69 | 8:35PM 0.83 | 9:26AM 0.54 | 9:12PM 0.71 | 10:00AM 0.42 | ||||||||||||||||||
Tue 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:03 | - | - |
| Sunset | 6:32 | - | - | - | - | - | - | - | 6:34 | - | - | - | - | - | - | - | 6:34 | - | - | - | - | - | - | - |
 |  |  |  | |  | |  | |  |  | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | 1 | 4 | - | - | 1 | - | - | 7 | 8 | 2 | 1 | - | - | - | - | 1 | 2 | 2 | 1 | - | - |
| Temp. °C | 28 | 27 | 27 | 26 | 26 | 27 | 30 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 29 | 28 | 28 | 28 | 27 | 26 | 26 | 27 | 29 | 30 |
| Feels °C (?) | 30 | 30 | 31 | 30 | 30 | 31 | 33 | 31 | 30 | 31 | 30 | 30 | 31 | 31 | 32 | 31 | 30 | 31 | 30 | 30 | 31 | 31 | 32 | 32 |
- 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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