Surf Forecasts:
How big are the waves at Shida today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 1.5ft (0.5m), 9s period with S swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 2.5ft (0.8m), 8s period with S swell.
- Evening surf: Evening surf (21 Aug, local time) - 2ft (0.6m), 9s period with E swell.
The current surf forecast for Shida at 4AM is: 0.5m 11s primary swell from a Southeast direction and 0.4m 4s secondary swell from a South-southeast direction (forecast issued at 08:00pm August 20). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 1.5ft (0.5m) | 9s |
| Afternoon (21 Aug) | 2.5ft (0.8m) | 8s |
| Evening (21 Aug) | 2ft (0.6m) | 9s |
Table - waves today at Shida. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Sat night. Warm (max 28°C on Fri morning, min 23°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 | S 9 | SE 11 | S 8 | E 9 | E 9 | E 9 | E 10 | E 11 | E 11 | E 11 | E 11 | E 11 | E 10 |
Wave Graph  | ||||||||||||||||||
 kJ | 40 | 40 | 40 | 56 | 41 | 40 | 40 | 92 | 40 | 61 | 41 | 90 | 160 | 151 | 229 | 233 | 233 | 212 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | on |
High Tide | 7:57PM1.37m | 8:28PM1.31m | ||||||||||||||||
Low Tide | 4:02AM0.48m | 5:32AM0.48m | ||||||||||||||||
 |  |  |  |  |  | |  | | | |  | | | | | | | |
 | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:01 | — | — | — | — | — | — |
 | 6:22 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:19 | — |
mm | — | — | — | — | — | — | — | 1 | — | — | — | 1 | — | — | 1 | 1 | 1 | 3 |
Temp °C | 27 | 26 | 26 | 25 | 25 | 27 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 28 | 27 | 26 | 24 |
Feels °C | 30 | 29 | 29 | 28 | 28 | 29 | 29 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 30 | 30 | 30 | 27 |
Swell 1 Height (m) Direction Period (s) | SE 11 | E 8 | E 8 | SSE 4 | SSE 5 | E 8 | S 8 | E 8 | E 9 | E 9 | E 9 | E 10 | E 11 | E 11 | E 11 | E 11 | E 11 | E 10 |
| kJ | 40 | 33 | 32 | 6 | 10 | 34 | 37 | 35 | 40 | 61 | 41 | 90 | 160 | 151 | 229 | 233 | 233 | 212 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | SE 11 | SE 11 | SE 11 | SSW 8 | S 9 | E 8 | SE 10 | S 8 | S 8 | S 9 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | S 5 | S 5 |
| kJ | 22 | 40 | 40 | 56 | 24 | 39 | 34 | 39 | 37 | 37 | 38 | 31 | 31 | 28 | 27 | 27 | 16 | 11 |
Swell 3 Height (m) Direction Period (s) | SE 5 | SE 5 | SSW 8 | SSW 8 | SE 11 | SE 11 | SE 11 | SE 5 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SSW 9 | SSW 9 |
| kJ | 10 | 7 | 13 | 23 | 41 | 40 | 40 | 1 | 38 | 28 | 36 | 37 | 25 | 25 | 27 | 28 | 27 | 27 |
Wind waves Height (m) Direction Period (s) | S 6 | SSE 6 | SSE 5 | S 3 | S 4 | SSE 4 | SSW 3 | S 8 | S 4 | S 4 | S 4 | S 4 | S 5 | S 5 | S 5 | S 5 | — | — |
| kJ | 6 | 6 | 10 | 6 | 7 | 8 | 3 | 92 | 10 | 11 | 17 | 25 | 27 | 21 | 22 | 22 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 155 | 104 | 7 | 115 | 115 | 7 | 7 | 0 | 0 | 3 |
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 Shida 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