Surf Forecasts:
How big are the waves at Choshi today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 1.5ft (0.4m), 8s period with SE swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 1.5ft (0.4m), 11s period with E swell.
- Evening surf: Evening surf (18 Sep, local time) - 2ft (0.6m), 14s period with SE swell.
The current surf forecast for Choshi at 12AM is: 1.9m 7s primary swell from a East-northeast direction and 0.5m 12s secondary swell from a East direction, 0.3m 7s secondary swell from a Southeast direction (forecast issued at 08:00pm September 17). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 1.5ft (0.4m) | 8s |
| Afternoon (18 Sep) | 1.5ft (0.4m) | 11s |
| Evening (18 Sep) | 2ft (0.6m) | 14s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 125mm), heaviest during Sun afternoon. Warm (max 24°C on Sat night, min 21°C on Thu night). Winds decreasing (strong winds from the NNE on Fri morning, moderate winds from the NE by Sat night). | ||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | ||||||||||||||||
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) | ENE 7 | E 11 | ENE 7 | E 12 | E 12 | SE 8 | E 11 | E 11 | SE 15 | SE 14 | SE 14 | SE 13 | SE 16 | ESE 15 | ESE 14 | ESE 13 | ESE 13 | ESE 13 |
Wave Graph  | ||||||||||||||||||
 kJ | 384 | 63 | 382 | 69 | 69 | 16 | 60 | 39 | 76 | 162 | 492 | 859 | 2580 | 3851 | 3500 | 2678 | 2469 | 2095 |
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-off | cross |
High Tide | 6:22PM1.46m | 9:23AM1.07m | 6:45PM1.40m | 7:11PM1.33m | ||||||||||||||
Low Tide | 1:54AM0.45m | 12:30PM1.04m | 2:50AM0.53m | |||||||||||||||
 | | |  |  | |  | | | | | |  | | | | | | |
 | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:40 | — | — | — | — | — | — | — | 5:38 | — | — |
mm | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 23 | 22 | 22 | 22 | 23 | 24 |
Feels °C | 16 | 16 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 18 | 21 | 23 | 21 | 21 | 21 | 22 | 25 |
Swell 1 Height (m) Direction Period (s) | E 11 | E 11 | E 12 | E 12 | E 12 | SE 12 | E 11 | E 11 | SE 15 | SE 14 | SE 14 | SE 13 | SE 16 | ESE 15 | ESE 14 | ESE 13 | ESE 13 | ESE 13 |
| kJ | 93 | 63 | 69 | 69 | 69 | 6 | 60 | 39 | 34 | 162 | 492 | 859 | 2580 | 3851 | 3500 | 2678 | 2469 | 2095 |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | — | SSE 9 | SE 8 | SE 12 | SE 13 | SE 15 | E 11 | S 22 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | NNE 8 |
| kJ | 7 | 9 | 9 | — | 7 | 16 | 6 | 7 | 76 | 38 | 9 | 34 | 54 | 127 | 125 | 158 | 154 | 188 |
Swell 3 Height (m) Direction Period (s) | ENE 13 | SSE 9 | SSE 9 | SSE 9 | SE 12 | SE 12 | SSE 8 | SE 11 | SE 8 | SE 8 | SE 22 | E 10 | — | — | — | E 10 | — | E 10 |
| kJ | 35 | 8 | 8 | 8 | 6 | 6 | 7 | 5 | 20 | 21 | 18 | 55 | — | — | — | 158 | — | 158 |
Wind waves Height (m) Direction Period (s) | ENE 7 | NE 7 | ENE 7 | NE 7 | ENE 7 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | ENE 7 | ENE 7 | ENE 7 | NE 7 | NNE 7 | NE 8 | NNE 8 | — |
| kJ | 384 | 383 | 382 | 394 | 440 | 516 | 490 | 478 | 516 | 416 | 440 | 320 | 243 | 303 | 261 | 65 | 219 | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 266 | 591 | 591 | 591 | 591 | 591 | 350 | 613 | 609 | 609 | 350 | 350 | 266 | 627 | 1007 | 632 | 591 | 610 |
Best forecast wave conditions in Chiba | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
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