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Onjuku surfForecast / Chiba / Japan
12 Day Weather and Surf, issued 8 am Wednesday 05 Mar 2025 JST
Best Forecast Surf Conditions for Onjuku this week:
The surf forecast for Onjuku over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Mar 05) at 3PM. The primary swell is predicted to be 2.4m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Onjuku in the next 12 days are 2.1m 13s and forecast to arrive on Saturday (Mar 08) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Friday (Mar 07) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Wed 5th Mar) | 8ft (2.4m) 8s |
| Best Surf | 6AM (Sat 8th Mar) | 7ft (2.1m) 13s |
| Most Powerful | 6AM (Sat 8th Mar) | 7ft (2.1m) 13s |
Table - best surf conditions forecast for Onjuku over the next 12 days.
Wednesday 05 | Thursday 06 | Friday 07 | Saturday 08 | Sunday 09 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||||||||||||
| 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 (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 10 | 10 | 7 | 9 | 10 | 9 | 13 | 11 | 11 | 12 | 7 | 8 | 7 | 8 | 7 | 10 | 9 | 6 | 7 | 7 | 8 | 8 | 9 | 9 | 7 | 8 | 7 | 9 | 8 | 9 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 770 | 759 | 282 | 251 | 296 | 238 | 439 | 349 | 481 | 615 | 242 | 149 | 184 | 243 | 244 | 249 | 153 | 60 | 64 | 83 | 143 | 158 | 381 | 255 | 244 | 281 | 379 | 349 | 264 | 255 | 115 | 1267 | 1490 | 1247 | 1037 | 821 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross | off | off | cross- off | cross- off | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- on | cross- off | cross- off | on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off |
High Tide / height (m) | 8:55PM 1.12 | 7:24AM 1.42 | 10:55PM 1.01 | 7:48AM 1.37 | 8:16AM 1.29 | 4:58AM 10:04AM 1.20 1.19 | 4:11AM 1.22 | 1:08PM 1.20 | 4:15AM 1.26 | 2:26PM 1.27 | 4:27AM 1.29 | 3:18PM 1.34 | 4:40AM 1.32 | 4:00PM 1.40 | 4:55AM 1.34 | 4:38PM 1.42 | 5:10AM 1.37 | 5:14PM 1.42 | 5:25AM 1.39 | 5:49PM 1.40 | ||||||||||||||||
Low Tide / height (m) | 2:08PM 0.26 | 1:21AM 0.88 | 3:07PM 0.31 | 1:03AM 0.99 | 4:31PM 0.38 | 6:27PM 0.39 | 7:47AM 1.18 | 7:56PM 0.34 | 8:51AM 1.07 | 8:52PM 0.29 | 9:20AM 0.94 | 9:32PM 0.27 | 9:47AM 0.81 | 10:04PM 0.27 | 10:14AM 0.68 | 10:33PM 0.29 | 10:41AM 0.56 | 10:58PM 0.35 | 11:08AM 0.45 | 11:22PM 0.43 | 11:35AM 0.37 | 11:44PM 0.52 | ||||||||||||||
Wednesday 05 | Thursday 06 | Friday 07 | Saturday 08 | Sunday 09 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||||||||||||
| Sunrise | 6:03 | - | - | 6:01 | - | - | 6:01 | - | - | 6:00 | - | - | 5:58 | - | - | 5:56 | - | - | 5:56 | - | - | 5:54 | - | - | 5:52 | - | - | 5:52 | - | - | 5:50 | - | - | 5:48 | - | - |
| Sunset | - | 5:36 | - | - | 5:37 | - | - | 5:37 | - | - | 5:38 | - | - | 5:39 | - | - | 5:40 | - | - | 5:40 | - | - | 5:42 | - | - | 5:43 | - | - | 5:44 | - | - | 5:45 | - | - | 5:45 | - |
 |  |  | |  |  |  |  |  | | |  |  | |  | | | | |  | | | | | | | | | | | | | | | | | |
Rain (mm) | 10 | 1 | - | 1 | - | 3 | - | - | - | - | 2 | 38 | 4 | - | - | - | - | 2 | 9 | 26 | 16 | - | - | - | - | - | - | - | 4 | 15 | 1 | - | 1 | - | - | - |
| Temp. °C | 13 | 9 | 9 | 10 | 10 | 6 | 8 | 10 | 6 | 6 | 7 | 8 | 7 | 10 | 9 | 11 | 11 | 13 | 13 | 14 | 12 | 15 | 16 | 14 | 15 | 16 | 17 | 18 | 17 | 13 | 11 | 10 | 8 | 9 | 9 | 11 |
| Feels °C (?) | 8 | 3 | 6 | 5 | 6 | -1 | 1 | 3 | -1 | 0 | 2 | 6 | -1 | 4 | 3 | 7 | 7 | 8 | 8 | 9 | 3 | 9 | 13 | 12 | 11 | 13 | 10 | 11 | 10 | 11 | 4 | 4 | 1 | 1 | 2 | 7 |
Short Range Forecast: Moderate rain (total 15mm), heaviest on Wed morning. Very mild (max 13°C on Wed morning, min 4°C on Thu night). Winds increasing (light winds from the NW on Wed night, fresh winds from the NNE by Thu night). | Days 3-6 Weather Summary Heavy rain (total 46mm), heaviest during Sat night. Very mild (max 13°C on Mon night, min 5°C on Sat night). Mainly strong winds. | Days 6-9 Weather Summary Heavy rain (total 51mm), heaviest during Tue afternoon. Very mild (max 17°C on Thu night, min 10°C on Tue night). Winds decreasing (strong winds from the NNW on Tue night, light winds from the NNW by Wed night). | Long Range Forecast: Heavy rain (total 21mm), heaviest during Fri night. Very mild (max 18°C on Fri morning, min 7°C on Sat night). Winds decreasing (strong winds from the SW on Fri afternoon, light winds from the ENE by Sun night). | |||||||||||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Onjuku 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 Onjuku Surf forecast
The above surf forecast table for Onjuku provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Onjuku can be found by selecting the local surf guide option on the grey menu. Our Onjuku 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 (Onjuku) 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 Onjuku 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.
Onjuku is 3 km (2 miles) from Ohara. If you plan a holiday in Chiba, look for hotels and other accommodation in Ohara. Ohara has rooms for a wide range of budgets as well as car hire and transport links.
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