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:
Hayama surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 2 am Saturday 13 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Hayama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Hayama sea temperature is
18.9° C
(Which is slightly cooler than normal)How big are the waves at Hayama today?
The current surf forecast for Hayama at 7AM is: 0.1m 5s primary swell from a Southwest direction (forecast issued at 02:00am December 13). An open ocean swell of 0.1m 11s is not directed at the surf break, a second open ocean swell of 0.1m 7s is not directed at the surf break, a second open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 0.5ft (0.1m) | 5s |
| Afternoon (13 Dec) | 0.5ft (0.1m) | 7s |
| Evening (13 Dec) | 0.5ft (0.1m) | 6s |
Table - waves today at Hayama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| 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 | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 5 | 15 | 5 | 5 | 11 | 7 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 9 | 11 | 11 | 8 | 9 | 9 | 10 | 10 | 10 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1 | 0 | 1 | 1 | 0 | 2 | 2 | 2 | 11 | 47 | 64 | 86 | 98 | 168 | 499 | 1086 | 329 | 314 | 173 | 92 | 38 | 24 | 22 | 21 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | cross- off | cross- off | cross- off | off | off | off | off | off | off | on | cross | cross- on | cross | cross | cross | off | glass | cross- on | cross- off | off |
High Tide / height (m) | 9:28PM 1.12 | 11:14AM 1.26 | 11:18PM 1.07 | 12:01PM 1.27 | 1:08AM 1.09 | 12:45PM 1.30 | ||||||||||||||||||
Low Tide / height (m) | 4:10AM 0.55 | 5:42PM 0.75 | 5:18AM 0.67 | 6:52PM 0.61 | 6:31AM 0.77 | 7:48PM 0.45 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - |
| Sunset | - | - | - | - | - | 4:29 | - | - | - | - | - | - | - | 4:30 | - | - | - | - | - | - | - | 4:30 | - | - |
 |  | |  |  | |  |  | | | |  | | | | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | 3 | - | 4 | 3 | 2 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 5 | 5 | 5 | 5 | 6 | 7 | 8 | 7 | 6 | 7 | 7 | 8 | 9 | 10 | 13 | 13 | 12 | 12 | 12 | 10 | 11 | 12 | 11 | 10 |
| Feels °C (?) | -4 | -4 | -2 | -2 | 1 | 2 | 3 | 1 | -1 | 1 | 2 | 3 | 3 | 8 | 6 | 4 | 6 | 6 | 4 | 5 | 8 | 8 | 5 | 4 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
Buy Less, Surf More This Black Friday
Surf-forecast is providing a free, all-access pass to our premium features and 12-day forecasts all weekend.
Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.
Previously used in our snow jackets for mountain conditions, PrimaLoft® technology is making its debut in the surf industry. The aim is to bring mountain-grade warmth to the waves.
Vancouver Island’s Day Of Days With Reed Platenius
Surf-Forecast recently helped the 21-year-old Canadian pro surfer and adventurer score some cold water perfection at home.
Read more
Discover more articles and updates in the Greenroom.
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Hayama surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest