Surf Forecasts:
How big are the waves at Amatu today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 10ft (3.0m), 12s period with SE swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 10ft (3.0m), 11s period with SE swell.
- Evening surf: Evening surf (20 Sep, local time) - 11ft (3.5m), 11s period with SE swell.
The current surf forecast for Amatu at 1AM is: 3.5m 12s primary swell from a Southeast direction and 0.8m 10s secondary swell from a East-northeast direction, 0.9m 8s secondary swell from a Northeast direction (forecast issued at 08:00pm September 19). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 10ft (3.0m) | 12s |
| Afternoon (20 Sep) | 10ft (3.0m) | 11s |
| Evening (20 Sep) | 11ft (3.5m) | 11s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 240mm), heaviest during Mon night. Warm (max 26°C on Mon afternoon, min 21°C on Sun morning). Winds decreasing (gales from the NNW on Mon night, light winds from the S by Tue afternoon). | ||||||||||||||||||
Sat 19 | Sunday 20 | Monday 21 | ||||||||||||||||
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 |  |  |  |  |  |  |  | |||||||||||
Wave Height (m) Direction Period (s) | SE 13 | SE 13 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 11 | SE 11 | SSE 11 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 14 |
Wave Graph  | ||||||||||||||||||
 kJ | 3489 | 3331 | 3423 | 3184 | 2993 | 2719 | 2305 | 2388 | 2985 | 2860 | 3074 | 3707 | 4068 | 4484 | 5023 | 5683 | 8972 | 17073 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on |
High Tide | 7:42PM1.30m | 4:05PM1.18m | 8:17PM1.20m | 3:07PM1.25m | ||||||||||||||
Low Tide | 5:06AM0.55m | 4:28PM1.18m | 6:50AM0.52m | 8:17PM1.09m | ||||||||||||||
 | | |  |  |  |  | |  | | |  | | |  | |  | | |
 | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:38 | — | — |
mm | — | — | — | 3 | 6 | 3 | 17 | 17 | 16 | 26 | 14 | 6 | 3 | 6 | 5 | 6 | 16 | 15 |
Temp °C | 22 | 22 | 23 | 23 | 23 | 21 | 22 | 22 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 24 | 26 | 26 |
Feels °C | 23 | 23 | 25 | 24 | 22 | 19 | 20 | 21 | 24 | 24 | 21 | 21 | 22 | 22 | 25 | 26 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 13 | SE 13 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 11 | SE 11 | SSE 11 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 14 |
| kJ | 3489 | 3331 | 3423 | 3184 | 2993 | 2719 | 2305 | 2388 | 2985 | 2860 | 3074 | 3707 | 4068 | 4484 | 5023 | 5683 | 8972 | 17073 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | ENE 10 | ENE 10 | — | E 14 | E 14 | S 15 | E 13 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | E 10 | — | — |
| kJ | 161 | 125 | 128 | 80 | — | 15 | 15 | 106 | 30 | 47 | 69 | 68 | 89 | 114 | 144 | 123 | — | — |
Swell 3 Height (m) Direction Period (s) | — | ENE 10 | — | — | — | — | — | E 13 | — | E 12 | E 12 | — | — | — | — | — | — | — |
| kJ | — | 102 | — | — | — | — | — | 30 | — | 76 | 72 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 10 | ENE 10 | NE 8 | NE 8 | NE 8 | NE 5 | NE 6 | NE 6 | NE 6 | — | — | — | — | — | — | — | E 10 | E 9 |
| kJ | 378 | 284 | 107 | 65 | 40 | 82 | 131 | 256 | 273 | — | — | — | — | — | — | — | 122 | 1507 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 35 | 35 | 16 | 69 | 538 | 601 | 601 | 601 | 601 | 601 | 16 | 558 | 601 | 615 | 558 | 558 | 558 | 554 |
Best forecast wave conditions in Chiba | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
- 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