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Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 am Tuesday 02 Dec 2025 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
21.9° C
(Which is 1.7°C warmer than normal for this time of year)How big are the waves at Amatu today?
The current surf forecast for Amatu at 6AM is: 0.6m 13s primary swell from a East-northeast direction and 0.8m 6s secondary swell from a Southwest direction, 1.2m 6s secondary swell from a West-southwest direction (forecast issued at 02:00am December 02). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Dec) | 2ft (0.6m) | 13s |
| Afternoon (02 Dec) | 2.5ft (0.7m) | 13s |
| Evening (02 Dec) | 2.5ft (0.7m) | 13s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 02 | Wednesday 03 | Thursday 04 | ||||||||||||||||||||||
| 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 | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 7 | 13 | 9 | 9 | 9 | 9 | 13 | 13 | 13 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 116 | 114 | 113 | 111 | 111 | 140 | 138 | 142 | 147 | 147 | 145 | 147 | 145 | 145 | 251 | 142 | 800 | 653 | 406 | 216 | 212 | 178 | 140 | 206 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | off | off | glass | glass | cross | cross | cross | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | off | off | off | off | cross- off | on | cross- on | cross |
High Tide / height (m) | 2:30AM 1.29 | 1:43PM 1.44 | 3:34AM 1.39 | 2:20PM 1.51 | 4:31AM 1.47 | 2:59PM 1.56 | ||||||||||||||||||
Low Tide / height (m) | 7:53AM 0.81 | 8:39PM 0.18 | 8:49AM 0.89 | 9:24PM -0.01 | 9:39AM 0.95 | |||||||||||||||||||
Tuesday 02 | Wednesday 03 | Thursday 04 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:30 | - | - | - | - |
| Sunset | - | - | - | - | - | 4:27 | - | - | - | - | - | - | - | 4:27 | - | - | - | - | - | - | - | 4:27 | - | - |
 |  | |  | |  | | | | |  | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 17 | 14 | 16 | 18 | 18 | 16 | 16 | 16 | 16 | 15 | 16 | 18 | 16 | 14 | 12 | 9 | 7 | 7 | 7 | 8 | 8 | 8 | 10 |
| Feels °C (?) | 13 | 14 | 12 | 14 | 17 | 17 | 15 | 15 | 13 | 13 | 13 | 15 | 13 | 12 | 10 | 6 | 1 | -3 | -2 | -1 | 3 | 4 | 3 | 6 |
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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