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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 am Saturday 04 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
16.1° C
(Which is 1.4°C colder than average for this time of year)How big are the waves at Amatu today?
The current surf forecast for Amatu at 7AM is: 1.6m 6s primary swell from a South-southeast direction and 0.4m 10s secondary swell from a East-southeast direction, 0.3m 10s secondary swell from a Northeast direction (forecast issued at 02:00am April 04). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Apr) | 6ft (1.9m) | 6s |
| Afternoon (04 Apr) | 8ft (2.5m) | 7s |
| Evening (04 Apr) | 10ft (3.0m) | 8s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 04 | Sunday 05 | Monday 06 | ||||||||||||||||||||||
| 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 | 12 PM | 3 PM | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 56 | 68 | 117 | 263 | 469 | 642 | 906 | 1350 | 2617 | 3724 | 3017 | 1207 | 1336 | 1397 | 1252 | 602 | 602 | 216 | 174 | 166 | 147 | 120 | 117 | 114 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | on | on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross | cross | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 5:11AM 1.36 | 6:17PM 1.29 | 5:31AM 1.35 | 6:53PM 1.22 | 5:52AM 1.33 | 7:31PM 1.14 | ||||||||||||||||||
Low Tide / height (m) | 11:27PM 0.46 | 11:42AM 0.04 | 11:52PM 0.54 | 12:11PM 0.02 | 12:16AM 0.62 | 12:42PM 0.04 | ||||||||||||||||||
Saturday 04 | Sunday 05 | Monday 06 | ||||||||||||||||||||||
| Sunrise | - | - | 5:22 | - | - | - | - | - | - | - | 5:20 | - | - | - | - | - | - | - | 5:20 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:02 | - |
 | |  |  | |  | |  | |  | |  | | | |  |  | | | | | | | | |
Rain (mm) | - | - | - | 1 | 1 | 1 | 1 | 3 | 5 | 1 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 15 | 15 | 17 | 17 | 17 | 17 | 17 | 18 | 20 | 19 | 19 | 20 | 19 | 17 | 16 | 17 | 15 | 15 | 16 | 17 | 17 | 17 | 17 |
| Feels °C (?) | 11 | 11 | 11 | 11 | 10 | 9 | 10 | 10 | 9 | 12 | 15 | 16 | 17 | 15 | 13 | 11 | 13 | 13 | 15 | 15 | 16 | 16 | 15 | 15 |
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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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