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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm Tuesday 26 May 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
21.1° C
(Which is normal for this time of year)How big are the waves at Amatu today?
The current surf forecast for Amatu at 3AM is: 1.4m 8s primary swell from a East-southeast direction and 0.7m 10s secondary swell from a East-northeast direction (forecast issued at 08:00pm May 26). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 May) | 5ft (1.5m) | 8s |
| Afternoon (27 May) | 5ft (1.5m) | 8s |
| Evening (27 May) | 4.5ft (1.3m) | 8s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Thu morning. Warm (max 25°C on Fri morning, min 20°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||||||
Tue 26 | Wednesday 27 | Thursday 28 | Friday 29 | |||||||||||||||||||||
6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 | S 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SW 8 | |
201 | 174 | 191 | 220 | 246 | 280 | 280 | 280 | 238 | 206 | 211 | 197 | 197 | 217 | 173 | 165 | 202 | 240 | 261 | 323 | 428 | 393 | 393 | 368 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross | cross | cross | cross | cross-on | glassy | |
High Tide | 1:18AM1.28m | 2:46PM1.14m | 1:53AM1.31m | 3:39PM1.20m | 2:25AM1.33m | |||||||||||||||||||
Low Tide | 7:02PM0.68m | 8:15AM0.41m | 7:57PM0.74m | 8:52AM0.28m | 8:46PM0.79m | 9:27AM0.17m | ||||||||||||||||||
 |  | |  |  | | | |  | | | | | |  | | | | | | | | | | |
 | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:26 | — | — | — | — |
 | 6:43 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | 6:45 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | |
Temp °C | 21 | 20 | 20 | 20 | 20 | 23 | 24 | 24 | 22 | 22 | 20 | 20 | 21 | 22 | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 25 | 25 | 24 |
21 | 21 | 22 | 22 | 21 | 23 | 24 | 26 | 24 | 23 | 19 | 19 | 22 | 24 | 23 | 22 | 23 | 24 | 22 | 20 | 21 | 28 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | E 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 201 | 174 | 191 | 220 | 246 | 280 | 280 | 280 | 238 | 206 | 211 | 197 | 197 | 217 | 173 | 165 | 180 | 197 | 206 | 211 | 173 | 144 | 144 | 149 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ENE 10 | NE 11 | NE 12 | NE 11 | NE 12 | NE 12 |
| kJ | 146 | 146 | 114 | 100 | 55 | 41 | 55 | 42 | 64 | 43 | 42 | 41 | 41 | 40 | 42 | 42 | 42 | 44 | 40 | 31 | 35 | 33 | 35 | 21 |
Swell 3 Height (m) Direction Period (s) | S 6 | S 6 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | — | — | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 |
| kJ | 3 | 3 | 21 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 33 | 31 | — | — | 5 | 5 | 4 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 5 | S 5 | SSW 4 | S 4 | S 4 | S 5 | S 6 | S 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SW 8 |
| kJ | — | — | — | — | — | — | — | — | — | 1 | 1 | 9 | 14 | 15 | 35 | 125 | 202 | 240 | 261 | 323 | 428 | 393 | 393 | 368 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 35 | 24 | 24 | 0 | 0 | 0 | 16 | 24 | 24 | 30 | 127 | 126 | 24 | 24 | 24 | 24 | 24 | 75 | 75 | 30 | 30 | 6 | 24 | 0 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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