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Surf Forecasts:
Amatu surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 am Thursday 28 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
21.7° C
(Which is normal for this time of year)How big are the waves at Amatu today (28 May):
- Morning surf: Morning surf (28 May, local time) - 4ft (1.2m), 8s period with ESE swell.
- Afternoon surf: Afternoon surf (28 May, local time) - 4.5ft (1.4m), 8s period with ESE swell.
- Evening surf: Evening surf (28 May, local time) - 4ft (1.2m), 9s period with ESE swell.
The current surf forecast for Amatu at 7AM is: 1.2m 8s primary swell from a East-southeast direction and 0.4m 10s secondary swell from a East-northeast direction (forecast issued at 02:00am May 28). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 May) | 4ft (1.2m) | 8s |
| Afternoon (28 May) | 4.5ft (1.4m) | 8s |
| Evening (28 May) | 4ft (1.2m) | 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 Thu morning. Warm (max 25°C on Fri morning, min 17°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 28 | Friday 29 | Saturday 30 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | E 10 | SSW 7 | SSW 7 | SSW 7 | SW 7 | E 10 | E 9 | E 9 | E 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | E 11 | E 10 | E 10 | |
171 | 197 | 197 | 202 | 202 | 261 | 227 | 238 | 306 | 251 | 311 | 272 | 394 | 197 | 202 | 339 | 498 | 191 | 194 | 194 | 191 | 181 | 177 | 174 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross | cross | cross | cross-off | cross-off | cross | cross-on | on | on | on | cross-on | |
High Tide | 1:53AM1.31m | 3:39PM1.20m | 2:25AM1.33m | 4:25PM1.25m | 2:55AM1.34m | 5:06PM1.28m | ||||||||||||||||||
Low Tide | 8:52AM0.28m | 8:46PM0.79m | 9:27AM0.17m | 9:29PM0.82m | 10:00AM0.09m | |||||||||||||||||||
 | |  |  |  | | |  | |  |  | | | | | | | | | | | | | | |
 | — | 4:28 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — |
— | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 20 | 21 | 22 | 22 | 23 | 23 | 23 | 23 | 22 | 22 | 25 | 25 | 22 | 22 | 22 | 20 | 17 | 20 | 23 | 24 | 24 | 22 | 21 |
23 | 20 | 21 | 23 | 23 | 24 | 25 | 24 | 24 | 21 | 23 | 28 | 27 | 21 | 20 | 20 | 17 | 13 | 18 | 22 | 23 | 23 | 23 | 22 | |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | E 10 | E 9 | E 9 | E 9 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | E 11 | E 10 | E 10 |
 kJ | 171 | 197 | 197 | 202 | 202 | 261 | 227 | 238 | 306 | 212 | 217 | 176 | 222 | 197 | 172 | 111 | 84 | 191 | 194 | 194 | 191 | 181 | 177 | 174 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | S 16 | NE 11 | NE 12 | NE 11 | E 9 | E 10 | NE 11 | NE 11 | S 14 | SW 7 | S 6 | S 6 | S 6 | SSE 6 | SSE 6 | SE 6 |
| kJ | 42 | 41 | 41 | 42 | 42 | 42 | 42 | 40 | 5 | 31 | 36 | 33 | 180 | 184 | 19 | 19 | 4 | 50 | 21 | 20 | 29 | 31 | 34 | 51 |
Swell 3 Height (m) Direction Period (s) | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | W 9 | SW 8 | S 16 | S 16 | SE 9 | S 15 | NE 12 | NE 12 | S 14 | S 14 | S 14 | SSE 7 | SW 7 | SW 7 | SW 7 | SW 7 | E 4 | SW 7 |
| kJ | 18 | 17 | 17 | 17 | 16 | 16 | 2 | 18 | 5 | 5 | 3 | 4 | 35 | 35 | 4 | 4 | 4 | 17 | 24 | 17 | 12 | 7 | 10 | 8 |
Wind waves Height (m) Direction Period (s) | SW 3 | SSW 4 | — | — | — | S 4 | SSW 5 | S 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SW 7 | — | E 9 | E 9 | E 11 | ENE 5 | ENE 5 | ENE 5 | ENE 5 | E 4 | — | — |
| kJ | 2 | 7 | — | — | — | 18 | 35 | 78 | 161 | 251 | 311 | 272 | 394 | — | 202 | 339 | 498 | 92 | 54 | 28 | 17 | 9 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 35 | 96 | 126 | 24 | 30 | 24 | 24 | 30 | 35 | 30 | 6 | 6 | 24 | 35 | 126 | 53 | 538 | 35 | 16 | 24 | 24 | 24 | 24 | 24 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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