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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm 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 2AM is: 0.9m 8s primary swell from a Southeast direction and 0.2m 7s secondary swell from a South-southeast direction, 1.2m 5s secondary swell from a South-southwest direction (forecast issued at 08:00pm April 06). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Apr) | 4.5ft (1.4m) | 6s |
| Afternoon (07 Apr) | 3.5ft (1.1m) | 6s |
| Evening (07 Apr) | 4.5ft (1.4m) | 9s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Mon 06 | Tuesday 07 | Wednesday 08 | Thursday 09 | |||||||||||||||||||||
| 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 | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 5 | 6 | 6 | 6 | 6 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 187 | 138 | 106 | 83 | 111 | 120 | 92 | 79 | 70 | 299 | 399 | 320 | 171 | 115 | 260 | 69 | 38 | 44 | 66 | 46 | 45 | 51 | 53 | 44 |
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 | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 7:31PM 1.14 | 6:15AM 1.29 | 8:17PM 1.05 | 6:39AM 1.24 | 9:21PM 0.97 | 7:06AM 1.17 | ||||||||||||||||||
Low Tide / height (m) | 12:40AM 0.69 | 1:17PM 0.10 | 1:05AM 0.76 | 1:59PM 0.18 | 1:32AM 0.83 | 2:56PM 0.27 | ||||||||||||||||||
Mon 06 | Tuesday 07 | Wednesday 08 | Thursday 09 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:18 | - | - | - | - | - | - | - | 5:16 | - | - | - | - | - | - | - | 5:16 | - | - | - |
| Sunset | 6:02 | - | - | - | - | - | - | - | 6:04 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - |
 |  | |  | | |  | | | |  | |  |  | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 4 | 4 | 4 | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 17 | 17 | 17 | 17 | 15 | 14 | 15 | 15 | 12 | 10 | 8 | 8 | 11 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 15 | 16 | 17 |
| Feels °C (?) | 15 | 14 | 13 | 13 | 12 | 10 | 10 | 11 | 11 | 6 | 5 | 3 | 1 | 5 | 10 | 10 | 9 | 9 | 8 | 9 | 9 | 9 | 9 | 11 |
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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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