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Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Thursday 22 Jan 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
16.6° C
(Which is slightly cooler than normal)How big are the waves at Amatu today?
The current surf forecast for Amatu at 8PM is: 0.9m 8s primary swell from a Southwest direction and 0.6m 11s secondary swell from a Southeast direction, 0.3m 7s secondary swell from a Northeast direction (forecast issued at 02:00pm January 22). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Jan) | - | - |
| Afternoon (22 Jan) | 2ft (0.6m) | 11s |
| Evening (22 Jan) | 3ft (0.9m) | 8s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | |||||||||||||||||||||
| 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) (?) | 11 | 11 | 11 | 8 | 8 | 10 | 10 | 8 | 12 | 8 | 12 | 8 | 8 | 8 | 11 | 11 | 11 | 11 | 10 | 10 | 8 | 9 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 92 | 94 | 94 | 118 | 112 | 69 | 53 | 64 | 51 | 50 | 51 | 75 | 104 | 151 | 31 | 19 | 19 | 12 | 10 | 10 | 381 | 459 | 416 | 279 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | glass | cross- on | on | glass | cross- off | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off | off | off | off |
High Tide / height (m) | 6:26PM 1.38 | 7:44AM 1.35 | 7:09PM 1.31 | 8:07AM 1.33 | 7:59PM 1.20 | 8:31AM 1.31 | ||||||||||||||||||
Low Tide / height (m) | 12:50PM 0.64 | 1:05AM 0.14 | 1:27PM 0.58 | 1:35AM 0.29 | 2:08PM 0.53 | 2:05AM 0.46 | ||||||||||||||||||
Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:43 |
| Sunset | - | 4:55 | - | - | - | - | - | - | - | 4:57 | - | - | - | - | - | - | - | 4:58 | - | - | - | - | - | - |
 | |  |  | |  | |  | |  | | | | | | | | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - |
| Temp. °C | 5 | 5 | 4 | 3 | 2 | 2 | 2 | 4 | 5 | 6 | 5 | 5 | 5 | 5 | 5 | 7 | 9 | 9 | 8 | 6 | 5 | 3 | 2 | 4 |
| Feels °C (?) | -2 | 0 | -1 | -4 | -3 | -3 | -3 | -1 | 1 | 1 | 1 | 2 | 1 | -1 | -3 | -3 | -2 | -2 | -4 | -4 | -3 | -3 | -4 | -4 |
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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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