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:
San Miguel - Populo surfForecast / Azores / Portugal
48hr Weather and Surf, issued 4 am Tuesday 16 Dec 2025 -01Forecast update in hr min s Forecast update imminent
San Miguel - Populo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's San Miguel - Populo sea temperature is
17.5° C
(Which is normal for this time of year)How big are the waves at San Miguel - Populo today?
The current surf forecast for San Miguel - Populo at 6AM is: 1.6m 13s primary swell from a West direction and 0.8m 4s secondary swell from a West-southwest direction (forecast issued at 04:00am December 16). An open ocean swell of 2.1m 14s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (-01) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 4.5ft (1.3m) | 13s |
| Afternoon (16 Dec) | 3.5ft (1.0m) | 12s |
| Evening (16 Dec) | 6ft (1.9m) | 8s |
Table - waves today at San Miguel - Populo. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| 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 | 5 PM | 8 PM | 11 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 12 | 12 | 7 | 8 | 8 | 8 | 8 | 12 | 12 | 14 | 14 | 20 | 18 | 17 | 16 | 17 | 15 | 13 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1011 | 972 | 638 | 469 | 304 | 311 | 443 | 428 | 485 | 647 | 1557 | 1691 | 3613 | 3781 | 4147 | 3894 | 3556 | 5140 | 2855 | 3365 | 1127 | 1267 | 974 | 1047 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- off | cross- off | off | off | off | off | off | off | off |
High Tide / height (m) | 11:11PM 1.40 | 11:24AM 1.42 | 11:49PM 1.47 | 12:01PM 1.45 | 12:21AM 1.53 | 12:33PM 1.48 | ||||||||||||||||||
Low Tide / height (m) | 5:21AM 0.64 | 5:38PM 0.58 | 6:00AM 0.59 | 6:09PM 0.54 | 6:32AM 0.55 | 6:38PM 0.51 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| Sunrise | - | - | 7:50 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:52 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 5:23 | - | - | - | - | - | - | - | 5:24 | - | - | - | - | - | - | - | 5:24 | - | - |
 |  |  | |  | | | | | | | |  |  |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 3 | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 14 | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 19 | 19 | 19 | 18 | 16 | 15 | 14 | 15 | 14 | 14 | 14 | 14 |
| Feels °C (?) | 11 | 10 | 10 | 10 | 12 | 12 | 13 | 14 | 14 | 14 | 14 | 15 | 16 | 15 | 15 | 15 | 13 | 10 | 8 | 9 | 8 | 8 | 9 | 11 |
- 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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