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:
Thailand surfForecast / Simeulue Island / Indonesia
48hr Weather and Surf, issued 6 pm Tuesday 16 Dec 2025 WIBForecast update in hr min s Forecast update imminent
Thailand surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Thailand sea temperature is
28.9° C
(Which is normal for this time of year)How big are the waves at Thailand today?
The current surf forecast for Thailand at 1AM is: 0.9m 16s primary swell from a Southwest direction and 0.9m 12s secondary swell from a South-southwest direction (forecast issued at 06:00pm December 16). The wind direction is predicted to be offshore and the swell rating is 3.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 3ft (0.9m) | 16s |
| Afternoon (17 Dec) | 3.5ft (1.1m) | 16s |
| Evening (17 Dec) | 3.5ft (1.1m) | 15s |
Table - waves today at Thailand. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 252 | 309 | 395 | 386 | 386 | 437 | 427 | 477 | 612 | 612 | 693 | 574 | 631 | 623 | 614 | 701 | 606 | 606 | 597 | 450 | 412 | 406 | 357 | 299 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | glass | glass | off | off | cross- off | off | off | glass | glass | cross | cross- off | cross- off | cross- off | glass | glass | glass | glass | glass | cross- on | glass | glass | glass | glass |
High Tide / height (m) | 4:21PM 0.60 | 4:23AM 0.35 | 4:57PM 0.62 | 5:06AM 0.35 | 5:32PM 0.65 | 5:45AM 0.35 | ||||||||||||||||||
Low Tide / height (m) | 11:17PM 0.17 | 9:54AM 0.11 | 11:51PM 0.12 | 10:31AM 0.08 | 12:22AM 0.09 | 11:07AM 0.06 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - |
| Sunset | 6:29 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - |
 |  |  |  | |  | | | | | | | |  | | | | | |  | | | | | |
Rain (mm) | - | - | - | 2 | 3 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 28 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 27 | 28 |
| Feels °C (?) | 31 | 31 | 31 | 29 | 27 | 27 | 27 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 31 | 33 | 32 | 32 | 31 | 31 | 31 | 30 | 31 | 32 |
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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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