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Izumi surfForecast / Chiba / Japan
12 Day Weather and Surf, issued 8 pm Wednesday 09 Jul 2025 JST
Best Forecast Surf Conditions for Izumi this week:
The surf forecast for Izumi over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jul 12) at 9PM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.1m and 9s. Another secondary swell of 0.9m and 7s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Izumi in the next 12 days are 3.5m 10s and forecast to arrive on Wednesday (Jul 16) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Friday (Jul 11) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 12th Jul) | 3.5ft (1.1m) 8s |
| Best Surf | 6AM (Wed 16th Jul) | 10ft (3.0m) 10s |
| Most Powerful | 3PM (Wed 16th Jul) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Izumi over the next 12 days.
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Mon 21 | |||||||||||||||||||||||||
| 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) (?) | 11 | 11 | 11 | 9 | 8 | 6 | 7 | 7 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 9 | 10 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 102 | 96 | 129 | 134 | 118 | 293 | 351 | 276 | 269 | 292 | 305 | 358 | 316 | 314 | 417 | 337 | 883 | 1962 | 2258 | 1583 | 3953 | 3397 | 1271 | 976 | 1130 | 496 | 461 | 441 | 405 | 431 | 565 | 630 | 593 | 506 | 429 | 461 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | on | cross | cross- off | cross | cross- off | cross- off | cross | cross- off | cross | cross | cross- off | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on |
High Tide / height (m) | 2:38AM 1.38 | 5:38PM 1.30 | 3:23AM 1.41 | 6:08PM 1.32 | 4:06AM 1.43 | 6:36PM 1.33 | 4:49AM 1.43 | 7:04PM 1.33 | 5:33AM 1.40 | 7:31PM 1.33 | 6:20AM 1.33 | 7:58PM 1.34 | 7:13AM 1.24 | 8:25PM 1.34 | 8:17AM 1.14 | 8:54PM 1.34 | 9:42AM 1.04 | 9:26PM 1.34 | 11:50AM 1.01 | 10:05PM 1.34 | 2:21PM 1.08 | 10:58PM 1.35 | 3:45PM 1.19 | |||||||||||||
Low Tide / height (m) | 9:35PM 1.05 | 10:14AM 0.10 | 10:16PM 1.02 | 10:52AM 0.05 | 10:54PM 0.98 | 11:28AM 0.04 | 11:33PM 0.93 | 12:03PM 0.06 | 12:13AM 0.87 | 12:38PM 0.13 | 12:57AM 0.80 | 1:11PM 0.24 | 1:45AM 0.72 | 1:45PM 0.39 | 2:39AM 0.64 | 2:19PM 0.56 | 3:41AM 0.55 | 2:55PM 0.74 | 4:51AM 0.46 | 3:37PM 0.91 | 6:08AM 0.36 | 4:44PM 1.06 | 7:21AM 0.24 | |||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Mon 21 | |||||||||||||||||||||||||
| Sunrise | - | 4:31 | - | - | 4:31 | - | - | 4:31 | - | - | 4:33 | - | - | 4:33 | - | - | 4:33 | - | - | 4:33 | - | - | 4:35 | - | - | 4:35 | - | - | 4:35 | - | - | 4:37 | - | - | 4:37 | - |
| Sunset | - | - | 6:54 | - | - | 6:54 | - | - | 6:54 | - | - | 6:53 | - | - | 6:53 | - | - | 6:52 | - | - | 6:52 | - | - | 6:52 | - | - | 6:52 | - | - | 6:51 | - | - | 6:51 | - | - | 6:50 |
 |  |  |  |  |  | | | | | |  | | | |  | | |  | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4 | 4 | - | 3 | 5 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 26 | 28 | 28 | 23 | 23 | 23 | 22 | 22 | 23 | 24 | 26 | 26 | 25 | 27 | 27 | 26 | 28 | 28 | 28 | 29 | 27 | 27 | 28 | 28 | 26 | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 28 | 28 |
| Feels °C (?) | 29 | 32 | 31 | 22 | 21 | 20 | 20 | 20 | 22 | 26 | 27 | 26 | 27 | 29 | 28 | 28 | 29 | 29 | 27 | 29 | 27 | 28 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 30 | 29 | 30 | 30 | 28 | 30 | 29 |
Short Range Forecast: Light rain (total 2mm), mostly falling on Thu morning. Warm (max 28°C on Thu morning, min 21°C on Fri night). Winds increasing (light winds from the S on Wed night, fresh winds from the NE by Fri afternoon). | Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Tue afternoon. Warm (max 28°C on Tue morning, min 23°C on Sat night). Winds increasing (light winds from the NNE on Sat night, fresh winds from the SSE by Tue afternoon). | Days 6-9 Weather Summary Moderate rain (total 12mm), heaviest on Tue night. Warm (max 29°C on Wed morning, min 25°C on Thu night). Winds decreasing (strong winds from the S on Tue night, light winds from the SE by Thu night). | Long Range Forecast: Mostly dry. Warm (max 28°C on Sat morning, min 25°C on Sun 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 Izumi 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 Izumi Surf forecast
The above surf forecast table for Izumi provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Izumi can be found by selecting the local surf guide option on the grey menu. Our Izumi 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 (Izumi) 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 Izumi 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.
Izumi is 7 km (4 miles) from the city of 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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