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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 am Monday 06 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
15.5° 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 7AM is: 1.7m 9s primary swell from a Southwest direction and 1.2m 8s secondary swell from a South direction, 1.0m 8s secondary swell from a East-southeast direction (forecast issued at 02:00am April 06). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Apr) | 3.5ft (1.0m) | 9s |
| Afternoon (06 Apr) | 3ft (0.9m) | 8s |
| Evening (06 Apr) | 3.5ft (1.1m) | 8s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 06 | Tuesday 07 | Wednesday 08 | ||||||||||||||||||||||
| 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) (?) | 8 | 8 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | 6 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 525 | 334 | 457 | 145 | 154 | 117 | 178 | 135 | 88 | 76 | 76 | 94 | 77 | 93 | 67 | 194 | 351 | 245 | 141 | 58 | 46 | 43 | 58 | 57 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross- off | cross- off | cross- off | off | off | cross- off | off | on | cross- on | cross- on |
High Tide / height (m) | 5:52AM 1.33 | 7:31PM 1.14 | 6:15AM 1.29 | 8:17PM 1.05 | 6:39AM 1.24 | |||||||||||||||||||
Low Tide / height (m) | 12:16AM 0.62 | 12:42PM 0.04 | 12:40AM 0.69 | 1:17PM 0.10 | 1:05AM 0.76 | 1:59PM 0.18 | ||||||||||||||||||
Monday 06 | Tuesday 07 | Wednesday 08 | ||||||||||||||||||||||
| Sunrise | - | - | 5:20 | - | - | - | - | - | - | - | 5:18 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:02 | - | - | - | - | - | - | - | 6:04 | - | - | - | - | - | - | - | 6:05 | - |
 | |  | |  |  | |  | | | |  | | | |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 2 | 1 | 4 | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 17 | 16 | 18 | 18 | 19 | 18 | 17 | 17 | 17 | 18 | 14 | 15 | 15 | 14 | 11 | 9 | 9 | 8 | 11 | 14 | 15 | 13 | 13 |
| Feels °C (?) | 12 | 15 | 15 | 19 | 17 | 17 | 16 | 14 | 14 | 13 | 14 | 10 | 11 | 11 | 10 | 5 | 4 | 3 | 1 | 4 | 9 | 11 | 9 | 9 |
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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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