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Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 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 7PM is: 0.5m 10s primary swell from a East-southeast direction and 0.7m 4s secondary swell from a South-southeast direction (forecast issued at 02:00pm May 11). An open ocean swell of 0.1m 12s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | - | - |
| Afternoon (11 May) | 1.5ft (0.5m) | 10s |
| Evening (11 May) | 1.5ft (0.5m) | 10s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 19°C on Mon afternoon, min 17°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | ESE 10 | ESE 10 | SE 10 | SE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | |
58 | 57 | 56 | 56 | 54 | 55 | 115 | 74 | 117 | 110 | 166 | 190 | 168 | 199 | 199 | 237 | 293 | 318 | 295 | 301 | 307 | 288 | 282 | 245 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | glassy | glassy | cross-off | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross | cross-off | |
High Tide | 9:59AM0.95m | 00:40AM1.02m | 12:03PM0.96m | 1:08AM1.07m | 1:33PM1.03m | 1:34AM1.12m | ||||||||||||||||||
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 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 18 | 18 | 19 | 19 | 18 | 18 | 18 | 17 | 18 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 |
15 | 14 | 15 | 15 | 15 | 16 | 15 | 16 | 15 | 17 | 17 | 16 | 18 | 18 | 16 | 17 | 17 | 18 | 19 | 19 | 17 | 17 | 16 | 14 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | ESE 10 | SE 8 | SE 10 | SE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
 kJ | 58 | 57 | 56 | 56 | 54 | 55 | 115 | 74 | 29 | 110 | 166 | 190 | 168 | 199 | 199 | 237 | 293 | 318 | 295 | 301 | 307 | 288 | 282 | 245 |
Swell 2 Height (m) Direction Period (s) | E 11 | NE 11 | NE 13 | NE 11 | ENE 11 | SSE 8 | NE 10 | SSE 8 | ENE 10 | ESE 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 |
| kJ | 2 | 5 | 7 | 5 | 11 | 6 | 16 | 46 | 9 | 48 | 3 | 3 | 3 | 3 | 6 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | N 6 | NE 8 | E 8 | NE 8 | SE 8 | NE 10 | SSE 8 | NE 10 | NE 10 | NE 9 | — | — | E 13 | NE 13 | NE 12 | — | — | — | — | S 9 | S 9 | S 9 | S 9 | — |
| kJ | 1 | 3 | 1 | 2 | 3 | 17 | 6 | 15 | 24 | 3 | — | — | 3 | 6 | 6 | — | — | — | — | 2 | 2 | 2 | 2 | — |
Wind waves Height (m) Direction Period (s) | SSE 5 | SSE 4 | SSE 4 | SSE 4 | SSE 5 | SSE 5 | — | — | ESE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 3 |
| kJ | 37 | 26 | 26 | 21 | 17 | 16 | — | — | 117 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 56 | 56 | 56 | 55 | 55 | 55 | 37 | 56 | 56 | 56 | 56 | 56 | 0 | 0 | 0 | 71 | 112 | 56 | 117 | 71 | 0 | 37 | 37 | 125 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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