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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Wednesday 25 Mar 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 2.1°C colder than average for this time of year)How big are the waves at Amatu today?
The current surf forecast for Amatu at 6PM is: 1.6m 6s primary swell from a Southeast direction and 0.4m 10s secondary swell from a East direction, 0.3m 10s secondary swell from a Northeast direction (forecast issued at 02:00pm March 25). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Mar) | - | - |
| Afternoon (25 Mar) | 5ft (1.5m) | 6s |
| Evening (25 Mar) | 5.5ft (1.7m) | 6s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||||||
| 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 | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 9 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 73 | 133 | 176 | 231 | 342 | 539 | 640 | 887 | 679 | 850 | 1616 | 1392 | 833 | 1079 | 909 | 844 | 812 | 731 | 601 | 544 | 580 | 460 | 494 | 443 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross- off | glass | on |
High Tide / height (m) | 11:11PM 0.97 | 7:50AM 1.23 | 8:49AM 1.12 | 2:49AM 1.08 | ||||||||||||||||||||
Low Tide / height (m) | 3:08PM 0.12 | 1:46AM 0.94 | 4:34PM 0.22 | 6:17PM 0.26 | 7:46AM 0.96 | |||||||||||||||||||
Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:35 | - | - | - | - | - | - | - | 5:33 | - | - | - | - | - | - | - | 5:33 | - |
| Sunset | - | 5:53 | - | - | - | - | - | - | - | 5:53 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - |
 |  |  | | | | | | | | | | |  | | |  | | | |  | | | | |
Rain (mm) | - | 1 | 3 | 3 | 2 | 2 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 12 | 12 | 11 | 11 | 11 | 12 | 14 | 13 | 13 | 12 | 12 | 11 | 12 | 13 |
| Feels °C (?) | 9 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 7 | 9 | 8 | 8 | 7 | 6 | 7 | 8 | 9 | 9 | 10 | 9 | 9 | 9 | 10 | 11 |
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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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