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:
Dimas Rivermouth surfForecast / Sinaloa / Mexico
48hr Weather and Surf, issued 10 am Wednesday 10 Dec 2025 MSTForecast update in hr min s Forecast update imminent
Dimas Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dimas Rivermouth sea temperature is
23.7° C
(Which is slightly cooler than normal)How big are the waves at Dimas Rivermouth today?
The current surf forecast for Dimas Rivermouth at 3PM is: 0.4m 13s primary swell from a South-southwest direction and 0.3m 11s secondary swell from a South-southwest direction, 0.3m 6s secondary swell from a West-northwest direction (forecast issued at 10:00am December 10). The wind direction is predicted to be cross-onshore.
| Time (MST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 1.5ft (0.4m) | 13s |
| Afternoon (10 Dec) | 1.5ft (0.4m) | 13s |
| Evening (10 Dec) | 1.5ft (0.4m) | 13s |
Table - waves today at Dimas Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| 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 | 5 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 11 | 11 | 11 | 11 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 70 | 70 | 70 | 70 | 70 | 70 | 99 | 96 | 58 | 57 | 49 | 57 | 57 | 57 | 85 | 87 | 95 | 57 | 40 | 40 | 40 | 39 | 71 | 73 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross- on | cross- on | cross | cross | cross- off | cross- off | off | glass | cross- on | cross- on | cross | cross | cross- off | off | glass | glass | cross- on | cross- on | cross | cross- off | cross- off | cross- off |
High Tide / height (m) | 11:05AM 1.24 | 3:19AM 1.25 | 1:16PM 1.06 | 4:05AM 1.31 | 4:26PM 1.03 | 4:36AM 1.38 | ||||||||||||||||||
Low Tide / height (m) | 5:52AM 1.12 | 7:08PM 0.63 | 10:27AM 1.04 | 8:28PM 0.77 | 11:25AM 0.85 | 9:52PM 0.86 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| Sunrise | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 5:21 | - | - | - | - | - | - | - | 5:21 | - | - | - | - | - | - | - | 5:21 | - | - | - | - |
 | |  | |  | |  | |  | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 21 | 24 | 25 | 23 | 22 | 21 | 21 | 20 | 21 | 24 | 24 | 23 | 22 | 22 | 21 | 21 | 21 | 24 | 24 | 23 | 22 | 21 | 20 | 20 |
| Feels °C (?) | 21 | 25 | 24 | 22 | 22 | 20 | 21 | 20 | 21 | 24 | 23 | 22 | 22 | 23 | 22 | 21 | 22 | 25 | 23 | 22 | 22 | 21 | 20 | 20 |
- 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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