- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Monday 23 Mar 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
14.9° 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 9PM is: 1.5m 8s primary swell from a South-southeast direction and 0.4m 11s secondary swell from a East-northeast direction (forecast issued at 02:00pm March 23). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Mar) | - | - |
| Afternoon (23 Mar) | 3.5ft (1.0m) | 6s |
| Evening (23 Mar) | 5ft (1.5m) | 8s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||||||||||
| 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) (?) | 6 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | 6 | 6 | 6 | 6 | 6 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 82 | 77 | 159 | 257 | 253 | 215 | 226 | 183 | 122 | 104 | 90 | 93 | 91 | 82 | 70 | 62 | 55 | 138 | 196 | 231 | 279 | 222 | 306 | 317 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on | on | cross- on | cross- on |
High Tide / height (m) | 8:07PM 1.18 | 6:50AM 1.36 | 9:16PM 1.06 | 7:18AM 1.31 | 11:11PM 0.97 | 7:50AM 1.23 | ||||||||||||||||||
Low Tide / height (m) | 1:17PM -0.03 | 1:07AM 0.73 | 2:06PM 0.03 | 1:30AM 0.85 | 3:08PM 0.12 | 1:46AM 0.94 | ||||||||||||||||||
Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:35 | - |
| Sunset | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:53 | - | - | - | - | - | - |
 | |  |  | | |  | |  | |  | | | | | | | |  | | | | | | |
Rain (mm) | 3 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - |
| Temp. °C | 10 | 10 | 11 | 10 | 10 | 10 | 9 | 11 | 13 | 12 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 12 | 12 | 14 |
| Feels °C (?) | 7 | 7 | 8 | 7 | 6 | 7 | 5 | 5 | 8 | 7 | 8 | 8 | 9 | 10 | 9 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 9 | 10 |
- Map Icons:
Break
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.
Nearest