Surf Forecasts:
How big are the waves at Amatu today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 1.5ft (0.5m), 11s period with SE swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 2ft (0.6m), 10s period with E swell.
- Evening surf: Evening surf (21 Aug, local time) - 2ft (0.6m), 10s period with E swell.
The current surf forecast for Amatu at 5AM is: 0.5m 11s primary swell from a Southeast direction and 0.6m 8s secondary swell from a East-southeast direction, 0.5m 9s secondary swell from a South direction, 0.4m 3s secondary swell from a South direction (forecast issued at 08:00pm August 20). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 1.5ft (0.5m) | 11s |
| Afternoon (21 Aug) | 2ft (0.6m) | 10s |
| Evening (21 Aug) | 2ft (0.6m) | 10s |
Table - waves today at Amatu. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Sat night. Warm (max 28°C on Fri morning, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | ||||||||||||||||
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 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 11 | E 11 | E 11 | E 10 |
Wave Graph  | ||||||||||||||||||
 kJ | 58 | 58 | 57 | 57 | 57 | 58 | 44 | 65 | 68 | 69 | 66 | 90 | 94 | 175 | 227 | 231 | 279 | 218 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | glassy |
High Tide | 8:20PM1.38m | 8:48PM1.31m | ||||||||||||||||
Low Tide | 4:32AM0.54m | 6:13AM0.53m | ||||||||||||||||
 |  | |  |  | | | | | | |  | | | | |  | | |
 | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — |
 | 6:22 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 2 |
Temp °C | 27 | 26 | 26 | 25 | 25 | 27 | 28 | 28 | 26 | 26 | 26 | 25 | 26 | 27 | 28 | 28 | 27 | 25 |
Feels °C | 30 | 29 | 29 | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 28 | 28 | 30 | 30 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | SE 4 | ESE 8 | SSW 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 11 | E 11 | E 11 | E 10 |
| kJ | 58 | 58 | 57 | 9 | 53 | 45 | 37 | 65 | 68 | 69 | 66 | 90 | 94 | 175 | 227 | 231 | 279 | 218 |
Swell 2 Height (m) Direction Period (s) | SE 5 | ENE 8 | ENE 8 | SSW 8 | SSW 9 | SE 11 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | S 5 | S 5 |
| kJ | 10 | 24 | 22 | 24 | 45 | 58 | 44 | 44 | 44 | 45 | 52 | 54 | 50 | 47 | 47 | 46 | 16 | 11 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | SE 6 | SE 5 | SE 11 | SE 11 | ENE 8 | SE 11 | SE 11 | SE 11 | SE 11 | ESE 11 | SE 10 | E 13 | SE 10 | SE 10 | SE 10 | SSW 9 | SSW 9 |
| kJ | 25 | 11 | 7 | 57 | 57 | 21 | 41 | 30 | 30 | 30 | 47 | 28 | 50 | 16 | 27 | 28 | 47 | 32 |
Wind waves Height (m) Direction Period (s) | — | SSE 5 | S 5 | S 3 | — | SSE 4 | SSW 3 | S 3 | S 4 | S 4 | S 4 | S 4 | S 4 | S 5 | S 5 | S 5 | — | W 3 |
| kJ | — | 10 | 5 | 3 | — | 7 | 3 | 6 | 9 | 10 | 15 | 24 | 19 | 21 | 22 | 22 | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 24 | 24 | 24 | 24 | 24 | 30 | 24 | 24 | 127 | 87 | 35 | 96 | 96 | 35 | 35 | 30 | 6 | 0 |
Best forecast wave conditions in Chiba | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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