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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Friday 10 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
14.6° C
(Which is 3.2°C colder than average for this time of year)How big are the waves at Amatu today?
The current surf forecast for Amatu at 1PM is: 2.5m 7s primary swell from a South-southwest direction and 0.5m 9s secondary swell from a East-southeast direction (forecast issued at 08:00am April 10). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Apr) | 7.5ft (2.3m) | 7s |
| Afternoon (10 Apr) | 8ft (2.5m) | 8s |
| Evening (10 Apr) | 11ft (3.5m) | 9s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 10 | Saturday 11 | Sunday 12 | Mon 13 | |||||||||||||||||||||
| 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) (?) | 6 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 11 | 11 | 11 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 314 | 483 | 628 | 821 | 1211 | 1678 | 1482 | 1183 | 909 | 695 | 530 | 655 | 1194 | 948 | 470 | 266 | 149 | 76 | 75 | 75 | 73 | 73 | 73 | 73 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross | cross | cross- off | cross | cross- on | on | on | on | on | on | on |
High Tide / height (m) | 7:40AM 1.09 | 1:22AM 0.99 | 8:55AM 0.99 | 1:59AM 1.06 | 11:44AM 0.97 | 2:22AM 1.13 | ||||||||||||||||||
Low Tide / height (m) | 4:18PM 0.34 | 4:55AM 0.95 | 5:53PM 0.36 | 7:21AM 0.86 | 7:07PM 0.33 | |||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Mon 13 | |||||||||||||||||||||
| Sunrise | 5:15 | - | - | - | - | - | - | - | 5:13 | - | - | - | - | - | - | - | 5:11 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:06 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:07 | - | - | - |
 | |  | | |  |  |  |  | | | | | | | |  | | | | |  | | | |
Rain (mm) | - | - | 1 | 1 | - | 9 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 21 | 21 | 19 | 17 | 15 | 13 | 12 | 15 | 16 | 16 | 15 | 16 | 16 | 16 |
| Feels °C (?) | 12 | 11 | 12 | 12 | 13 | 14 | 14 | 12 | 12 | 14 | 16 | 14 | 12 | 12 | 11 | 8 | 8 | 12 | 13 | 13 | 13 | 15 | 16 | 16 |
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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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