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Matsube Bay surfForecast / Chiba / Japan
12 Day Weather and Surf, issued 2 pm Wednesday 02 Jul 2025 JST
Best Forecast Surf Conditions for Matsube Bay this week:
The surf forecast for Matsube Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 04) at 6AM. The primary swell is predicted to be 1.1m and 10s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Matsube Bay in the next 12 days are 1.3m 15s and forecast to arrive on Wednesday (Jul 09) at 12AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 4th Jul) | 3.5ft (1.1m) 10s |
| Best Surf | 9PM (Mon 7th Jul) | 3.5ft (1.0m) 14s |
| Most Powerful | 12AM (Wed 9th Jul) | 4.5ft (1.3m) 15s |
Table - best surf conditions forecast for Matsube Bay over the next 12 days.
Wed 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Mon 14 | ||||||||||||||||||||||||
| 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 | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 9 | 10 | 9 | 10 | 9 | 9 | 8 | 9 | 9 | 9 | 9 | 10 | 15 | 14 | 14 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 9 | 12 | 11 | 10 | 10 | 11 | 10 | 10 | 10 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 172 | 157 | 187 | 182 | 155 | 303 | 399 | 459 | 397 | 385 | 260 | 328 | 300 | 321 | 530 | 725 | 966 | 911 | 834 | 844 | 816 | 823 | 647 | 678 | 602 | 614 | 430 | 296 | 615 | 546 | 551 | 650 | 595 | 519 | 399 | 286 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | on | on | on | glass | cross | cross | cross- off | cross- on | cross- on | on | cross- on | cross- on | on | on | on | on | on | cross- on | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 9:37PM 1.26 | 9:50AM 0.99 | 10:08PM 1.26 | 11:43AM 0.95 | 10:43PM 1.26 | 1:53PM 0.99 | 11:25PM 1.27 | 3:19PM 1.07 | 12:15AM 1.28 | 4:07PM 1.15 | 1:08AM 1.30 | 4:42PM 1.21 | 1:59AM 1.33 | 5:14PM 1.26 | 2:47AM 1.37 | 5:45PM 1.30 | 3:32AM 1.41 | 6:15PM 1.32 | 4:15AM 1.44 | 6:43PM 1.33 | 4:58AM 1.44 | 7:11PM 1.34 | 5:41AM 1.41 | |||||||||||||
Low Tide / height (m) | 4:15AM 0.70 | 3:19PM 0.72 | 5:25AM 0.61 | 3:58PM 0.84 | 6:30AM 0.52 | 4:58PM 0.95 | 7:27AM 0.42 | 6:29PM 1.02 | 8:17AM 0.33 | 7:53PM 1.05 | 9:01AM 0.24 | 8:54PM 1.05 | 9:43AM 0.16 | 9:41PM 1.03 | 10:22AM 0.10 | 10:21PM 1.00 | 10:59AM 0.05 | 11:00PM 0.97 | 11:35AM 0.04 | 11:38PM 0.92 | 12:10PM 0.07 | 12:19AM 0.87 | ||||||||||||||
Wed 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Mon 14 | ||||||||||||||||||||||||
| Sunrise | - | - | 4:28 | - | - | 4:28 | - | - | 4:28 | - | - | 4:28 | - | - | 4:30 | - | - | 4:30 | - | - | 4:31 | - | - | 4:31 | - | - | 4:31 | - | - | 4:33 | - | - | 4:33 | - | - | 4:33 |
| Sunset | 6:57 | - | - | 6:55 | - | - | 6:55 | - | - | 6:55 | - | - | 6:55 | - | - | 6:55 | - | - | 6:55 | - | - | 6:54 | - | - | 6:54 | - | - | 6:54 | - | - | 6:54 | - | - | 6:53 | - | - |
 |  |  | | | | |  | | | | | | | | | | | | | |  |  |  | |  | | | | | |  | | |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 15 | 10 | 6 | 4 | - | - | - | - | - | - | 2 | 1 | 4 | 1 |
| Temp. °C | 26 | 24 | 26 | 26 | 24 | 27 | 26 | 25 | 27 | 27 | 25 | 28 | 28 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 24 |
| Feels °C (?) | 27 | 27 | 28 | 27 | 26 | 28 | 26 | 28 | 31 | 30 | 29 | 30 | 30 | 28 | 29 | 28 | 27 | 28 | 28 | 28 | 30 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 28 | 29 | 28 | 26 | 26 | 26 | 23 | 21 |
Short Range Forecast: Mostly dry. Warm (max 27°C on Fri morning, min 23°C on Thu night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 28°C on Sun morning, min 25°C on Sat night). Wind will be generally light. | Days 6-9 Weather Summary Heavy rain (total 37mm), heaviest during Thu morning. Warm (max 27°C on Tue afternoon, min 25°C on Tue night). Wind will be generally light. | Long Range Forecast: Light rain (total 8mm), mostly falling on Sun night. Warm (max 27°C on Fri afternoon, min 24°C on Sun night). Winds increasing (light winds from the NE on Fri night, strong winds from the NNE by Mon afternoon). | |||||||||||||||||||||||||||||||||
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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 Matsube Bay 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 Matsube Bay Surf forecast
The above surf forecast table for Matsube Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Matsube Bay can be found by selecting the local surf guide option on the grey menu. Our Matsube Bay 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 (Matsube Bay) 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 Matsube Bay 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.
Matsube Bay is 2 km (1 miles) from Katsuura. If you plan a holiday in Chiba, look for hotels and other accommodation in Katsuura. Katsuura has rooms for a wide range of budgets as well as car hire and transport links.
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