- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Monday 30 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
15.3° C
(Which is 1.9°C colder than average for this time of year)How big are the waves at Amatu today?
The current surf forecast for Amatu at 12PM is: 0.9m 10s primary swell from a East-northeast direction and 0.1m 9s secondary swell from a Northeast direction, 0.3m 4s secondary swell from a South-southwest direction (forecast issued at 08:00am March 30). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Mar) | 3ft (0.9m) | 10s |
| Afternoon (30 Mar) | 2.5ft (0.8m) | 10s |
| Evening (30 Mar) | 2.5ft (0.8m) | 10s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 30 | Tuesday 31 | Wednesday 01 | Thu 02 | |||||||||||||||||||||
| 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) (?) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 6 | 6 | 7 | 8 | 10 | 11 | 11 | 11 | 10 | 9 | 8 | 8 | 8 | 8 | 8 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 160 | 163 | 163 | 131 | 128 | 123 | 98 | 98 | 119 | 272 | 856 | 2081 | 4324 | 4682 | 3131 | 3153 | 848 | 466 | 385 | 280 | 201 | 358 | 186 | 153 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | cross | cross | cross | cross | glass | off |
High Tide / height (m) | 3:27AM 1.21 | 2:53PM 1.24 | 3:49AM 1.26 | 3:43PM 1.31 | 4:10AM 1.31 | 4:26PM 1.35 | ||||||||||||||||||
Low Tide / height (m) | 9:15AM 0.62 | 9:22PM 0.23 | 9:47AM 0.45 | 9:58PM 0.26 | 10:17AM 0.31 | 10:30PM 0.31 | ||||||||||||||||||
Monday 30 | Tuesday 31 | Wednesday 01 | Thu 02 | |||||||||||||||||||||
| Sunrise | 5:30 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:26 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:59 | - | - | - | - | - | - | - | 5:59 | - | - | - | - |
 |  | |  |  | |  | |  | |  | |  |  | |  | | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | 2 | 6 | 5 | 2 | 3 | - | - | - | - | - | - | 1 | 5 | 11 | 5 |
| Temp. °C | 14 | 15 | 17 | 18 | 17 | 16 | 17 | 17 | 17 | 15 | 16 | 17 | 18 | 19 | 17 | 15 | 14 | 13 | 14 | 13 | 13 | 13 | 13 | 11 |
| Feels °C (?) | 14 | 15 | 14 | 14 | 13 | 12 | 13 | 13 | 11 | 9 | 9 | 7 | 9 | 13 | 13 | 14 | 11 | 7 | 8 | 7 | 9 | 10 | 13 | 7 |
- 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