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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Tuesday 14 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Amatu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Amatu sea temperature is
15.0° C
(Which is 3.1°C colder than average for this time of year)How big are the waves at Amatu today?
The current surf forecast for Amatu at 5PM is: 1.0m 10s primary swell from a Southeast direction and 0.1m 18s secondary swell from a South direction, 0.6m 6s secondary swell from a East-southeast direction (forecast issued at 08:00am April 14). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Apr) | 3ft (0.9m) | 10s |
| Afternoon (14 Apr) | 3ft (0.9m) | 10s |
| Evening (14 Apr) | 3ft (0.9m) | 10s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 14 | Wednesday 15 | Thursday 16 | Fri 17 | |||||||||||||||||||||
| 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 12 | 17 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 16 | 16 | 16 | 16 | 16 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 124 | 148 | 145 | 167 | 260 | 170 | 236 | 537 | 464 | 635 | 1230 | 1307 | 1258 | 1374 | 1319 | 1301 | 969 | 1053 | 1011 | 1849 | 1654 | 1634 | 1531 | 1696 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 2:20PM 1.17 | 3:05AM 1.27 | 3:10PM 1.28 | 3:28AM 1.33 | 3:59PM 1.37 | |||||||||||||||||||
Low Tide / height (m) | 8:38AM 0.56 | 8:43PM 0.30 | 9:10AM 0.37 | 9:22PM 0.32 | 9:43AM 0.19 | 10:00PM 0.38 | ||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Fri 17 | |||||||||||||||||||||
| Sunrise | 5:09 | - | - | - | - | - | - | - | 5:07 | - | - | - | - | - | - | - | 5:07 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:10 | - | - | - | - | - | - | - | 6:10 | - | - | - |
 |  | | | |  | | |  | |  | | |  | |  |  | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 3 | 3 | 2 | 8 | 12 | 3 | - | - | - | - | - | - |
| Temp. °C | 16 | 18 | 19 | 19 | 17 | 17 | 17 | 16 | 16 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 16 | 14 | 11 | 10 | 10 | 9 |
| Feels °C (?) | 17 | 17 | 17 | 17 | 15 | 16 | 16 | 15 | 15 | 16 | 15 | 15 | 16 | 16 | 16 | 16 | 9 | 9 | 9 | 6 | 2 | 1 | 2 | 1 |
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Live Wave Height (m)
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 Amatu 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.
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