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Surf Forecasts:
Shida surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 am Wednesday 13 May 2026 JSTForecast update in hr min s Forecast update imminent
Shida surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Shida sea temperature is
17.7° C
(Which is 2.3°C colder than average for this time of year)How big are the waves at Shida today?
The current surf forecast for Shida at 9AM is: 1.4m 9s primary swell from a Southeast direction and 0.3m 11s secondary swell from a Northeast direction (forecast issued at 02:00am May 13). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 4.5ft (1.4m) | 9s |
| Afternoon (13 May) | 5ft (1.6m) | 9s |
| Evening (13 May) | 5ft (1.6m) | 10s |
Table - waves today at Shida. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Wed night. Warm (max 21°C on Wed morning, min 15°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | ||||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | |
314 | 281 | 323 | 330 | 378 | 431 | 460 | 452 | 402 | 378 | 370 | 336 | 307 | 300 | 274 | 332 | 327 | 327 | 282 | 246 | 246 | 211 | 211 | 173 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | on | cross-on | cross-on | cross | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | |
High Tide | 1:14AM1.36m | 1:52PM1.20m | 1:41AM1.40m | 2:54PM1.31m | 2:08AM1.45m | 3:49PM1.39m | ||||||||||||||||||
Low Tide | 7:47AM0.57m | 7:32PM0.67m | 8:24AM0.37m | 8:21PM0.75m | 9:01AM0.18m | |||||||||||||||||||
 | |  | | | | |  | |  |  |  | | | | | | | | | | | | | |
 | — | 4:35 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:35 | — |
— | — | — | — | — | — | — | 2 | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 17 | 18 | 19 | 21 | 20 | 20 | 19 | 18 | 18 | 18 | 18 | 19 | 19 | 17 | 16 | 16 | 15 | 15 | 17 | 18 | 18 | 18 | 19 |
19 | 16 | 17 | 18 | 19 | 19 | 20 | 20 | 18 | 17 | 17 | 16 | 17 | 16 | 13 | 13 | 13 | 12 | 12 | 14 | 16 | 16 | 17 | 19 | |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 314 | 281 | 323 | 330 | 378 | 431 | 460 | 452 | 402 | 378 | 370 | 336 | 307 | 300 | 274 | 332 | 327 | 327 | 282 | 246 | 246 | 211 | 211 | 173 |
Swell 2 Height (m) Direction Period (s) | NE 9 | NE 9 | NE 9 | NE 11 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 9 | NE 9 | NE 8 | NE 7 | NE 7 | NE 7 |
| kJ | 3 | 3 | 3 | 19 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 16 | 4 | 4 | 4 | 4 | 3 | 3 | 11 | 7 | 12 | 8 |
Swell 3 Height (m) Direction Period (s) | E 13 | E 13 | NE 12 | — | — | — | — | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | — | — | — | — | SE 12 | SE 12 | SE 12 | SE 12 | NE 9 | SE 11 | SSE 11 |
| kJ | 3 | 3 | 6 | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | 6 | 6 | 6 | 6 | 3 | 5 | 13 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NE 3 | — | — | — | NE 4 | NE 5 | NE 5 | NE 5 | NE 5 | NNE 5 | NNE 9 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | 8 | 37 | 49 | 38 | 28 | 19 | 53 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 3 | 3 | 17 | 63 | 0 | 0 | 0 | 3 | 17 | 23 | 23 | 63 | 63 | 115 | 63 | 70 | 63 | 70 | 66 | 63 | 115 | 0 | 0 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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