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.
- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
48hr Weather and Surf, issued 2 pm Wednesday 03 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Katahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Katahama sea temperature is
18.4° C
(Which is 2.2°C colder than average for this time of year)How big are the waves at Katahama today?
The current surf forecast for Katahama at 6PM is: 0.4m 8s primary swell from a Southeast direction and 0.1m 10s secondary swell from a Southeast direction (forecast issued at 02:00pm December 03). An open ocean swell of 2.5m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (03 Dec) | - | - |
| Afternoon (03 Dec) | 2ft (0.6m) | 8s |
| Evening (03 Dec) | 1.5ft (0.4m) | 8s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 03 | Thursday 04 | Friday 05 | Saturday 06 | |||||||||||||||||||||
| 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 | 0 AM | 3 AM | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 34 | 44 | 25 | 25 | 21 | 13 | 14 | 15 | 15 | 8 | 8 | 9 | 9 | 8 | 8 | 24 | 31 | 30 | 28 | 25 | 24 | 18 | 22 | 9 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off |
High Tide / height (m) | 3:35PM 1.58 | 5:23AM 1.45 | 4:04PM 1.61 | 5:58AM 1.48 | 4:36PM 1.63 | 6:33AM 1.49 | ||||||||||||||||||
Low Tide / height (m) | 9:58AM 0.96 | 10:39PM 0.21 | 10:32AM 0.99 | 11:10PM 0.15 | 11:05AM 1.00 | 11:43PM 0.11 | ||||||||||||||||||
Wednesday 03 | Thursday 04 | Friday 05 | Saturday 06 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:39 |
| Sunset | - | 4:36 | - | - | - | - | - | - | - | 4:36 | - | - | - | - | - | - | - | 4:35 | - | - | - | - | - | - |
 |  |  | | | | | | | |  |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 9 | 7 | 5 | 3 | 4 | 5 | 8 | 8 | 7 | 6 | 6 | 6 | 6 | 7 | 10 | 9 | 7 | 6 | 7 | 8 | 9 | 9 |
| Feels °C (?) | 7 | 4 | -2 | -4 | -5 | -6 | -5 | -4 | -1 | -2 | -2 | -3 | -2 | -2 | -2 | -1 | 1 | 0 | 0 | 2 | 3 | 5 | 6 | 6 |
- 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
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.
5 Reasons Why Costa Rica Is A Surfer (and Non Surfer) Paradise
With or without a surfboard, Costa Rica is a bucket list destination that has shown what a nation is capable of when nature is put first.
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 Katahama 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