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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Saturday 11 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
14.8° 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 4PM is: 1.4m 9s primary swell from a Southwest direction and 1.3m 8s secondary swell from a South direction, 0.6m 10s secondary swell from a East-southeast direction (forecast issued at 08:00am April 11). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Apr) | 8ft (2.4m) | 8s |
| Afternoon (11 Apr) | 4.5ft (1.4m) | 9s |
| Evening (11 Apr) | 6ft (1.9m) | 8s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||||||||
| 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) (?) | 9 | 8 | 8 | 9 | 8 | 8 | 9 | 8 | 8 | 11 | 11 | 11 | 10 | 11 | 11 | 11 | 11 | 10 | 9 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 969 | 787 | 287 | 281 | 1145 | 479 | 447 | 244 | 109 | 76 | 75 | 75 | 73 | 75 | 75 | 75 | 75 | 61 | 56 | 54 | 64 | 64 | 129 | 127 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | cross | cross- on | cross- off | off | cross- off | cross | cross- on | on | on | on | on | cross- on | on | on | on | on | on | on | on | glass | glass |
High Tide / height (m) | 8:55AM 0.99 | 1:59AM 1.06 | 11:44AM 0.97 | 2:22AM 1.13 | 1:19PM 1.06 | 2:43AM 1.20 | ||||||||||||||||||
Low Tide / height (m) | 4:55AM 0.95 | 5:53PM 0.36 | 7:21AM 0.86 | 7:07PM 0.33 | 8:06AM 0.72 | 8:00PM 0.31 | ||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||||||||
| Sunrise | 5:13 | - | - | - | - | - | - | - | 5:11 | - | - | - | - | - | - | - | 5:11 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:08 | - | - | - |
 | | | | |  |  |  |  | | | | | | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 21 | 22 | 19 | 17 | 17 | 16 | 15 | 15 | 13 | 14 | 16 | 15 | 15 | 15 | 15 | 16 | 17 | 18 | 18 | 17 | 16 | 16 | 15 |
| Feels °C (?) | 14 | 16 | 22 | 19 | 17 | 17 | 16 | 13 | 12 | 9 | 12 | 12 | 12 | 12 | 13 | 13 | 15 | 15 | 16 | 16 | 17 | 16 | 16 | 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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