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Katahama surfForecast / Shizuoka / Japan
12 Day Weather and Surf, issued 8 pm Thursday 13 Mar 2025 JST
Best Forecast Surf Conditions for Katahama this week:
The surf forecast for Katahama over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Mar 14) at 12PM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.9m and 6s. Another secondary swell of 0.4m and 7s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Katahama in the next 12 days are 4.0m 10s and forecast to arrive on Sunday (Mar 16) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 10s period and expected on Monday (Mar 17) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Fri 14th Mar) | 3.5ft (1.0m) 6s |
| Best Surf | 3PM (Sun 16th Mar) | 11ft (3.5m) 10s |
| Most Powerful | 12PM (Sun 16th Mar) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Katahama over the next 12 days.
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tue 25 | |||||||||||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 8 | 6 | 6 | 11 | 5 | 6 | 7 | 9 | 10 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 10 | 9 | 9 | 10 | 11 | 11 | 10 | 10 | 10 | 10 | 11 | 11 | 10 | 10 | 10 | 9 | 7 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 23 | 83 | 47 | 25 | 94 | 237 | 480 | 1141 | 2523 | 745 | 200 | 104 | 88 | 59 | 48 | 75 | 49 | 28 | 30 | 38 | 17 | 33 | 38 | 37 | 36 | 35 | 33 | 36 | 46 | 45 | 65 | 54 | 37 | 34 | 131 | 94 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross | cross- off | cross | cross- on | cross | cross | cross | cross- off | cross- off | off | off | cross- off | cross- on | cross | off | cross- on | glass | glass | on | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross |
High Tide / height (m) | 5:29AM 1.47 | 5:24PM 1.47 | 5:49AM 1.51 | 5:59PM 1.49 | 6:11AM 1.54 | 6:35PM 1.47 | 6:36AM 1.56 | 7:14PM 1.42 | 7:03AM 1.55 | 7:57PM 1.33 | 7:33AM 1.50 | 8:49PM 1.21 | 8:04AM 1.42 | 10:04PM 1.09 | 8:38AM 1.30 | 12:52AM 1.06 | 9:24AM 1.18 | 2:53AM 1.17 | 11:57AM 1.07 | 3:31AM 1.27 | 2:05PM 1.12 | 3:58AM 1.34 | 3:08PM 1.21 | |||||||||||||
Low Tide / height (m) | 11:16PM 0.23 | 11:35AM 0.43 | 11:41PM 0.26 | 12:00PM 0.32 | 12:06AM 0.32 | 12:29PM 0.24 | 12:33AM 0.39 | 1:02PM 0.19 | 1:01AM 0.49 | 1:40PM 0.18 | 1:31AM 0.61 | 2:24PM 0.22 | 2:04AM 0.75 | 3:18PM 0.29 | 2:43AM 0.89 | 4:31PM 0.37 | 4:08AM 1.03 | 6:13PM 0.42 | 8:14AM 1.02 | 7:53PM 0.39 | 9:27AM 0.89 | 9:00PM 0.34 | 10:00AM 0.76 | |||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tue 25 | |||||||||||||||||||||||||
| Sunrise | - | 6:00 | - | - | 5:58 | - | - | 5:56 | - | - | 5:56 | - | - | 5:54 | - | - | 5:52 | - | - | 5:52 | - | - | 5:50 | - | - | 5:48 | - | - | 5:48 | - | - | 5:46 | - | - | 5:45 | - |
| Sunset | - | - | 5:52 | - | - | 5:52 | - | - | 5:53 | - | - | 5:54 | - | - | 5:55 | - | - | 5:57 | - | - | 5:57 | - | - | 5:58 | - | - | 5:59 | - | - | 6:00 | - | - | 6:00 | - | - | 6:00 |
 |  |  |  |  |  |  |  | | | | | | | |  | | |  | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | 1 | 14 | 8 | 1 | - | - | - | - | - | - | 10 | 2 | - | 3 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 14 | 14 | 12 | 12 | 10 | 11 | 12 | 11 | 10 | 14 | 8 | 10 | 10 | 9 | 8 | 9 | 7 | 8 | 9 | 9 | 13 | 13 | 11 | 16 | 17 | 14 | 17 | 19 | 14 | 16 | 17 | 16 | 18 | 18 |
| Feels °C (?) | 13 | 12 | 10 | 13 | 6 | 7 | 3 | 1 | 6 | 6 | 0 | 5 | 1 | 7 | 6 | 4 | 6 | 5 | 3 | 5 | 4 | 6 | 6 | 5 | 7 | 8 | 9 | 8 | 8 | 11 | 11 | 12 | 15 | 15 | 14 | 14 |
Short Range Forecast: Heavy rain (total 24mm), heaviest during Sun morning. Very mild (max 15°C on Thu night, min 9°C on Sat night). Winds increasing (calm on Fri night, strong winds from the NE by Sun morning). | Days 3-6 Weather Summary Moderate rain (total 12mm), heaviest on Tue night. Very mild (max 14°C on Mon afternoon, min 5°C on Wed morning). Winds decreasing (strong winds from the W on Mon morning, calm by Wed morning). | Days 6-9 Weather Summary Light rain (total 3mm), mostly falling on Wed night. Very mild (max 17°C on Sat afternoon, min 4°C on Wed night). Winds increasing (calm on Wed night, fresh winds from the W by Sat afternoon). | Long Range Forecast: Mostly dry. Very mild (max 19°C on Sun afternoon, min 10°C on Sun night). Winds decreasing (fresh winds from the W on Sun morning, light winds from the NNW by Sun night). | |||||||||||||||||||||||||||||||||
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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.
Information about the Katahama Surf forecast
The above surf forecast table for Katahama provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Katahama can be found by selecting the local surf guide option on the grey menu. Our Katahama surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Katahama) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Katahama may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Katahama is 4 km (2 miles) from the city of Sagara. If you plan a holiday in Shizuoka, look for hotels and other accommodation in Sagara. Sagara has rooms for a wide range of budgets as well as car hire and transport links.
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