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Katagai surfForecast / Chiba / Japan
12 Day Weather and Surf, issued 2 am Saturday 08 Mar 2025 JST
Best Forecast Surf Conditions for Katagai this week:
The surf forecast for Katagai over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Mar 09) at 9PM. The primary swell is predicted to be 5ft and 8s period with a secondary swell of 3ft and 9s. Another secondary swell of 2ft and 11s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Katagai in the next 12 days are 10ft 8s and forecast to arrive on Wednesday (Mar 12) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3ft 5s period and expected on Sunday (Mar 09) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 9th Mar) | 5ft (1.6m) 8s |
| Best Surf | 9PM (Wed 12th Mar) | 10ft (3.0m) 8s |
| Most Powerful | 9PM (Wed 12th Mar) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Katagai over the next 12 days.
Saturday 08 | Sunday 09 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||||||||||
| 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 | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (ft) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 14 | 13 | 13 | 7 | 8 | 8 | 10 | 10 | 10 | 9 | 10 | 10 | 5 | 6 | 8 | 8 | 13 | 12 | 12 | 12 | 12 | 11 | 5 | 5 | 8 | 10 | 10 | 9 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 480 | 290 | 173 | 131 | 157 | 355 | 208 | 200 | 102 | 39 | 41 | 75 | 45 | 119 | 1031 | 322 | 215 | 153 | 141 | 72 | 41 | 42 | 40 | 93 | 634 | 1433 | 979 | 491 | 181 | 177 | 200 | 170 | 158 | 68 | 69 | 122 |
Wind (mph) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | on | cross- on | cross- on | cross | on | glass | cross- off | cross | cross | cross | cross- off | off | off | cross- on | on | cross- off | cross- on | cross- off | cross- off | cross- on | cross- off | cross- off | cross- off | glass | cross- on | cross- off | cross- off | cross- on | cross- on |
High Tide / height (ft) | 9:05AM 4 | 3:57AM 4 | 12:38PM 3.94 | 3:57AM 4.07 | 2:00PM 4.17 | 4:08AM 4.17 | 2:54PM 4.36 | 4:21AM 4.23 | 3:37PM 4.53 | 4:35AM 4.33 | 4:16PM 4.63 | 4:50AM 4.4 | 4:52PM 4.63 | 5:04AM 4.49 | 5:28PM 4.56 | 5:20AM 4.56 | 6:03PM 4.4 | 5:36AM 4.59 | 6:40PM 4.17 | 5:53AM 4.59 | 7:20PM 3.87 | |||||||||||||||
Low Tide / height (ft) | 6:01PM 1.31 | 7:34PM 1.15 | 8:30AM 3.58 | 8:32PM 0.98 | 9:00AM 3.15 | 9:13PM 0.89 | 9:27AM 2.72 | 9:45PM 0.89 | 9:54AM 2.3 | 10:14PM 0.98 | 10:21AM 1.87 | 10:40PM 1.15 | 10:48AM 1.54 | 11:03PM 1.41 | 11:15AM 1.25 | 11:26PM 1.74 | 11:44AM 1.08 | 11:46PM 2.07 | 12:14PM 0.98 | 12:05AM 2.4 | 12:47PM 1.02 | 12:21AM 2.72 | ||||||||||||||
Saturday 08 | Sunday 09 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||||||||||
| Sunrise | 6:00 | - | - | 5:58 | - | - | 5:56 | - | - | 5:54 | - | - | 5:54 | - | - | 5:52 | - | - | 5:50 | - | - | 5:50 | - | - | 5:48 | - | - | 5:47 | - | - | 5:46 | - | - | 5:43 | - | - |
| Sunset | - | 5:37 | - | - | 5:38 | - | - | 5:39 | - | - | 5:40 | - | - | 5:42 | - | - | 5:43 | - | - | 5:43 | - | - | 5:44 | - | - | 5:45 | - | - | 5:45 | - | - | 5:46 | - | - | 5:47 | - |
 |  |  |  | |  | | |  | | |  | | |  |  | | | | | |  | | | | |  | | | | | | | | | | |
Rain (in) | - | 0.1 | 0.7 | - | - | - | - | - | 0.0 | 0.0 | 0.0 | 0.2 | 0.0 | 0.0 | - | - | - | - | - | - | 0.0 | 0.3 | 0.2 | 1.4 | 0.2 | 0.1 | 0.0 | - | 0.2 | - | - | - | - | - | - | - |
| Temp. °F | 43 | 45 | 45 | 48 | 50 | 48 | 50 | 50 | 52 | 55 | 55 | 54 | 55 | 57 | 59 | 64 | 59 | 54 | 57 | 63 | 57 | 52 | 54 | 64 | 50 | 54 | 54 | 55 | 46 | 46 | 46 | 50 | 50 | 54 | 55 | 55 |
| Feels °F (?) | 34 | 34 | 36 | 36 | 37 | 36 | 45 | 41 | 45 | 45 | 46 | 48 | 54 | 55 | 52 | 57 | 48 | 45 | 45 | 54 | 52 | 48 | 50 | 54 | 43 | 50 | 45 | 43 | 39 | 37 | 39 | 41 | 45 | 48 | 48 | 52 |
Short Range Forecast: Heavy rain (total 0.9in), heaviest during Sat night. Very mild (max 52°F on Mon night, min 39°F on Sat night). Winds decreasing (fresh winds from the NNW on Sat night, calm by Mon morning). | Days 3-6 Weather Summary Moderate rain (total 0.4in), heaviest on Tue night. Very mild (max 64°F on Thu morning, min 50°F on Thu night). Winds increasing (calm on Wed morning, fresh winds from the SW by Wed night). | Days 6-9 Weather Summary Heavy rain (total 2.2in), heaviest during Sat night. Very mild (max 64°F on Sat night, min 50°F on Sun morning). Winds increasing (light winds from the SW on Fri night, strong winds from the SSW by Sat night). | Long Range Forecast: Light rain (total 0.2in), mostly falling on Mon afternoon. Very mild (max 55°F on Mon morning, min 41°F on Mon night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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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 Katagai 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 Katagai Surf forecast
The above surf forecast table for Katagai provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Katagai can be found by selecting the local surf guide option on the grey menu. Our Katagai 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 (Katagai) 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 Katagai 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.
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