Surf Forecasts:
How big are the waves at Shida today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 15ft (4.5m), 13s period with SSE swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 13ft (4.0m), 11s period with SE swell.
- Evening surf: Evening surf (21 Sep, local time) - 26ft (8.0m), 14s period with SSE swell.
The current surf forecast for Shida at 1AM is: 4.0m 12s primary swell from a South-southeast direction and 3.5m 12s secondary swell from a South-southeast direction, 0.4m 12s secondary swell from a East direction (forecast issued at 08:00pm September 20). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 15ft (4.5m) | 13s |
| Afternoon (21 Sep) | 13ft (4.0m) | 11s |
| Evening (21 Sep) | 26ft (8.0m) | 14s |
Table - waves today at Shida. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 134mm), heaviest during Mon night. Warm (max 27°C on Mon morning, min 22°C on Tue night). Mainly gales. | ||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 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 | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 13 | SE 11 | SE 12 | SSE 14 | SSE 14 | SE 11 | SE 10 | SSE 10 | SSE 9 | SSE 9 | NE 9 | ENE 9 |
Wave Graph  | ||||||||||||||||||
 kJ | 2483 | 2596 | 4237 | 4631 | 4491 | 6720 | 6104 | 4073 | 6566 | 23292 | 13322 | 2173 | 1249 | 860 | 567 | 413 | 415 | 236 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on |
High Tide | 7:59PM1.20m | 3:01PM1.21m | 11:15PM1.15m | 3:03PM1.27m | ||||||||||||||
Low Tide | 6:17AM0.48m | 7:46PM1.10m | 7:24AM0.42m | 8:18PM0.99m | ||||||||||||||
 |  |  | |  | | |  | | |  | |  |  | | |  | | |
 | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:36 | — | — |
mm | 8 | 2 | 5 | 13 | 13 | 9 | 3 | 8 | 5 | 12 | 48 | 16 | — | — | — | — | — | — |
Temp °C | 23 | 24 | 26 | 26 | 26 | 27 | 27 | 26 | 27 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 |
Feels °C | 25 | 24 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 22 | 20 | 21 | 25 | 27 | 25 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 11 | SE 11 | SSE 12 | SSE 12 | E 11 | SSE 13 | — | S 13 | S 13 | SSE 14 | SSE 14 | SE 11 | SE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 8 | SSE 8 |
| kJ | 2483 | 2596 | 2981 | 3646 | 39 | 5292 | — | 2660 | 2975 | 17533 | 13322 | 2173 | 1249 | 860 | 567 | 413 | 286 | 202 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 12 | E 12 | E 12 | E 11 | E 11 | — | — | — | — | ESE 10 | S 12 | NW 4 | ENE 9 | NE 8 | NE 10 | NE 9 | E 10 |
| kJ | 29 | 46 | 44 | 70 | 149 | 85 | — | — | — | — | 2090 | 1462 | 2 | 121 | 55 | 137 | 415 | 16 |
Swell 3 Height (m) Direction Period (s) | NE 8 | NE 9 | — | — | — | — | — | — | — | — | — | SSE 10 | W 4 | E 9 | E 9 | ENE 10 | E 10 | E 13 |
| kJ | 23 | 38 | — | — | — | — | — | — | — | — | — | 520 | 1 | 64 | 26 | 18 | 17 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 13 | SE 11 | SE 12 | SSE 14 | — | WNW 4 | WNW 4 | — | — | ENE 4 | NE 10 | ENE 9 |
| kJ | — | — | 4237 | 4631 | 4491 | 6720 | 6104 | 4073 | 6566 | 23292 | — | 17 | 23 | — | — | 10 | 207 | 236 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 626 | 626 | 70 | 63 | 640 | 74 | 584 | 580 | 583 | 580 | 561 | 78 | 19 | 27 | 104 | 596 | 256 | 74 |
Best forecast wave conditions in Chiba | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
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