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Surf Forecasts:
Shida surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Tuesday 19 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
19.9° C
(Which is slightly cooler than normal)How big are the waves at Shida today?
The current surf forecast for Shida at 7PM is: 0.9m 10s primary swell from a Southeast direction and 0.4m 9s secondary swell from a Northeast direction (forecast issued at 02:00pm May 19). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | - | - |
| Afternoon (19 May) | 3ft (0.9m) | 10s |
| Evening (19 May) | 3ft (0.9m) | 10s |
Table - waves today at Shida. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 39mm), heaviest during Thu night. Warm (max 24°C on Wed morning, min 16°C on Thu night). Winds increasing (light winds from the SW on Thu morning, strong winds from the NNE by Fri morning). | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 10 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 7 | SSW 7 | SSW 8 | SW 8 | S 8 | NE 7 | NE 7 | NE 7 | NE 8 | |
77 | 161 | 137 | 139 | 142 | 142 | 142 | 139 | 139 | 134 | 128 | 128 | 128 | 125 | 88 | 367 | 544 | 501 | 875 | 294 | 275 | 322 | 440 | 782 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | |
High Tide | 7:13PM1.39m | 4:58AM1.55m | 8:09PM1.33m | 5:41AM1.47m | 9:07PM1.29m | 6:32AM1.36m | ||||||||||||||||||
Low Tide | 11:44PM1.07m | 12:36PM-0.02m | 00:31AM1.09m | 1:26PM0.10m | 1:33AM1.08m | |||||||||||||||||||
 |  | |  | |  | | | |  | | |  |  |  | | | | |  | | | | | |
 | — | — | — | — | — | 4:31 | — | — | — | — | — | — | — | 4:30 | — | — | — | — | — | — | — | 4:28 | — | — |
 | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | 6:39 |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 2 | 1 | 4 | 8 | 1 | 9 | 5 | 4 | |
Temp °C | 23 | 22 | 21 | 20 | 20 | 20 | 20 | 23 | 24 | 24 | 22 | 21 | 21 | 21 | 22 | 22 | 21 | 19 | 17 | 16 | 16 | 17 | 17 | 16 |
21 | 19 | 19 | 19 | 19 | 19 | 19 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 23 | 21 | 19 | 14 | 12 | 12 | 13 | 11 | 9 | |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | S 7 | S 7 | SSW 8 | SSW 8 | S 8 | S 8 | S 8 | S 7 | S 7 |
 kJ | 55 | 161 | 137 | 139 | 142 | 142 | 142 | 139 | 139 | 134 | 128 | 128 | 128 | 125 | 88 | 148 | 233 | 266 | 365 | 294 | 186 | 118 | 70 | 54 |
Swell 2 Height (m) Direction Period (s) | SE 10 | ENE 9 | ENE 9 | NE 9 | NE 10 | NE 9 | NE 8 | NE 8 | NE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SE 9 | SE 10 | ESE 10 | ESE 10 | ESE 9 | SE 9 | SE 9 | SE 9 | WSW 8 |
| kJ | 77 | 8 | 8 | 23 | 23 | 22 | 18 | 18 | 19 | 7 | 7 | 6 | 6 | 6 | 6 | 90 | 92 | 63 | 61 | 59 | 42 | 42 | 43 | 26 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | E 11 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | — | NE 8 | NE 8 | S 8 | — | E 12 | ENE 7 | ENE 7 | NE 6 | NE 6 | E 11 | — | ESE 10 | ESE 10 | — |
| kJ | 8 | 2 | 29 | 29 | 27 | 27 | 26 | 26 | 26 | — | 18 | 17 | 1 | — | 3 | 5 | 5 | 11 | 18 | 2 | — | 55 | 51 | — |
Wind waves Height (m) Direction Period (s) | SSW 4 | SSW 4 | SSW 4 | SSW 4 | S 4 | S 4 | SSW 4 | SSW 5 | SSW 4 | SSW 5 | SSW 5 | SSW 5 | S 5 | SSW 4 | S 5 | SSW 7 | SSW 7 | SSW 8 | SW 8 | NE 6 | NE 7 | NE 7 | NE 7 | NE 8 |
| kJ | 15 | 16 | 16 | 12 | 12 | 19 | 27 | 28 | 29 | 45 | 39 | 31 | 22 | 27 | 43 | 367 | 544 | 501 | 875 | 131 | 275 | 322 | 440 | 782 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 592 | 565 | 153 | 115 | 115 | 115 | 214 | 565 | 565 | 153 | 115 | 115 | 115 | 115 | 1 | 1 | 17 | 303 | 147 | 63 | 561 | 561 | 563 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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