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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 am Sunday 24 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
21.5° C
(Which is normal for this time of year)How big are the waves at Amatu today?
The current surf forecast for Amatu at 11AM is: 1.5m 10s primary swell from a East direction and 0.1m 10s secondary swell from a Northeast direction, 1.1m 6s secondary swell from a Southeast direction (forecast issued at 02:00am May 24). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 May) | 5ft (1.5m) | 10s |
| Afternoon (24 May) | 4.5ft (1.4m) | 9s |
| Evening (24 May) | 4.5ft (1.3m) | 9s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Sun morning. Warm (max 23°C on Tue morning, min 19°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 24 | Monday 25 | Tuesday 26 | ||||||||||||||||||||||
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 | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
E 9 | E 10 | E 10 | E 10 | E 9 | ENE 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ESE 8 | ENE 10 | ENE 10 | ENE 10 | |
685 | 469 | 405 | 405 | 397 | 333 | 332 | 276 | 374 | 344 | 383 | 314 | 366 | 319 | 325 | 325 | 270 | 249 | 245 | 240 | 191 | 180 | 153 | 146 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross-on | |
High Tide | 11:09PM1.19m | 10:06AM1.06m | 11:57PM1.21m | 12:05PM1.03m | 00:40AM1.24m | 1:39PM1.08m | ||||||||||||||||||
Low Tide | 4:59AM0.85m | 4:54PM0.49m | 6:30AM0.72m | 6:00PM0.60m | 7:30AM0.56m | 7:02PM0.68m | ||||||||||||||||||
 |  |  | |  |  | |  | | |  | | | | |  | | | | | | | | | |
 | — | 4:30 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:43 | — |
— | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 18 | 19 | 19 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 21 | 22 | 22 | 21 | 20 | 19 | 19 | 20 | 21 | 23 | 22 | 21 | 20 |
16 | 16 | 18 | 18 | 18 | 18 | 19 | 18 | 18 | 18 | 19 | 19 | 20 | 21 | 21 | 21 | 20 | 20 | 20 | 21 | 23 | 22 | 21 | 21 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 10 | E 10 | E 10 | E 9 | ENE 9 | E 9 | ENE 9 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
 kJ | 561 | 469 | 405 | 405 | 397 | 333 | 332 | 276 | 211 | 231 | 221 | 200 | 200 | 204 | 193 | 219 | 224 | 183 | 197 | 202 | 183 | 153 | 153 | 133 |
Swell 2 Height (m) Direction Period (s) | — | SW 7 | NE 10 | NE 10 | ESE 10 | ESE 10 | SSE 7 | ESE 11 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
| kJ | — | 2 | 4 | 4 | 10 | 10 | 150 | 11 | 289 | 254 | 271 | 314 | 366 | 319 | 325 | 325 | 270 | 249 | 245 | 240 | 191 | 180 | 146 | 146 |
Swell 3 Height (m) Direction Period (s) | — | — | SW 7 | SW 7 | ESE 10 | — | — | E 16 | ESE 11 | ESE 11 | ESE 11 | E 16 | S 9 | SSW 9 | SSW 8 | SSW 8 | S 7 | S 7 | S 7 | S 7 | S 7 | S 6 | S 6 | S 6 |
| kJ | — | — | 2 | 2 | 10 | — | — | 5 | 12 | 12 | 12 | 5 | 2 | 8 | 14 | 19 | 26 | 23 | 23 | 15 | 14 | 13 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | E 9 | SE 6 | SE 6 | SE 6 | SSE 6 | SE 7 | — | SE 7 | ENE 9 | ENE 9 | ENE 9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 685 | 49 | 66 | 88 | 109 | 140 | — | 178 | 374 | 344 | 383 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 601 | 35 | 35 | 30 | 35 | 35 | 35 | 30 | 30 | 16 | 0 | 35 | 35 | 87 | 35 | 35 | 0 | 0 | 16 | 40 | 40 | 35 | 87 | 40 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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