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Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm Monday 11 May 2026 JSTForecast update in hr min s Forecast update imminent
Choshi surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Choshi sea temperature is
17.1° C
(Which is 2.7°C colder than average for this time of year)How big are the waves at Choshi today?
The current surf forecast for Choshi at 2AM is: 0.5m 10s primary swell from a East-southeast direction and 0.2m 8s secondary swell from a South-southeast direction, 0.7m 5s secondary swell from a South-southeast direction (forecast issued at 08:00pm May 11). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 2ft (0.6m) | 10s |
| Afternoon (12 May) | 2.5ft (0.8m) | 10s |
| Evening (12 May) | 3.5ft (1.0m) | 9s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Wed night. Very mild (max 19°C on Mon night, min 17°C on Thu afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Mon 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | |||||||||||||||||||||
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 | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | ESE 10 | ESE 10 | SE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | E 10 | |
56 | 56 | 54 | 55 | 139 | 74 | 125 | 133 | 148 | 172 | 168 | 199 | 207 | 253 | 293 | 305 | 301 | 307 | 301 | 301 | 294 | 332 | 326 | 279 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | glassy | cross-off | cross | cross | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | |
High Tide | 00:40AM1.02m | 12:03PM0.96m | 1:08AM1.07m | 1:33PM1.03m | 1:34AM1.12m | 2:41PM1.11m | ||||||||||||||||||
Low Tide | 5:19PM0.40m | 6:33AM0.64m | 6:28PM0.46m | 7:25AM0.45m | 7:26PM0.52m | 8:09AM0.25m | ||||||||||||||||||
 |  | | | | | | | | | |  |  |  | | | |  |  | | | | | | |
 | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:33 | — | — | — | — |
 | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | 6:32 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | |
Temp °C | 19 | 19 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 |
15 | 15 | 15 | 16 | 17 | 16 | 17 | 16 | 17 | 17 | 18 | 17 | 17 | 17 | 17 | 18 | 19 | 19 | 19 | 17 | 16 | 15 | 14 | 15 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | ESE 10 | ESE 10 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | E 10 |
 kJ | 56 | 56 | 54 | 55 | 139 | 74 | 125 | 43 | 148 | 172 | 168 | 199 | 207 | 253 | 293 | 305 | 301 | 307 | 301 | 301 | 294 | 332 | 326 | 279 |
Swell 2 Height (m) Direction Period (s) | NE 13 | NE 11 | ENE 11 | SSE 8 | NE 10 | SSE 8 | SE 8 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 12 | NE 11 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 |
| kJ | 7 | 5 | 11 | 6 | 16 | 46 | 24 | 3 | 3 | 3 | 3 | 3 | 6 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 16 | 4 |
Swell 3 Height (m) Direction Period (s) | E 8 | NE 8 | SE 8 | NE 10 | SSE 8 | NE 10 | ENE 10 | — | — | — | NE 13 | NE 13 | NE 12 | NE 9 | — | S 10 | — | S 9 | S 9 | S 9 | — | S 9 | — | — |
| kJ | 1 | 2 | 3 | 17 | 6 | 15 | 9 | — | — | — | 7 | 6 | 6 | 3 | — | 2 | — | 2 | 2 | 2 | — | 2 | — | — |
Wind waves Height (m) Direction Period (s) | SSE 4 | SSE 4 | SSE 5 | SSE 5 | — | — | — | SE 10 | — | — | — | — | — | — | — | — | — | — | — | — | NE 3 | — | — | — |
| kJ | 26 | 20 | 25 | 21 | — | — | — | 133 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 56 | 56 | 55 | 55 | 56 | 56 | 56 | 56 | 56 | 52 | 0 | 0 | 57 | 71 | 112 | 112 | 112 | 71 | 0 | 0 | 37 | 115 | 115 | 117 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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