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Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm Tuesday 12 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
17.3° C
(Which is 2.5°C colder than average for this time of year)How big are the waves at Choshi today?
The current surf forecast for Choshi at 3AM is: 1.0m 9s primary swell from a East-southeast direction (forecast issued at 08:00pm May 12). An open ocean swell of 0.1m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 4ft (1.2m) | 9s |
| Afternoon (13 May) | 4.5ft (1.4m) | 10s |
| Evening (13 May) | 4.5ft (1.4m) | 10s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 15°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Friday 15 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | ESE 10 | E 10 | ESE 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | |
166 | 172 | 168 | 165 | 199 | 242 | 287 | 334 | 356 | 356 | 307 | 335 | 279 | 282 | 314 | 235 | 231 | 273 | 226 | 188 | 211 | 175 | 171 | 173 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | glassy | cross-off | cross-off | cross | cross | cross-on | cross | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross-off | cross | cross-off | cross | cross | cross-on | |
High Tide | 1:08AM1.07m | 1:33PM1.03m | 1:34AM1.12m | 2:41PM1.11m | 2:01AM1.19m | |||||||||||||||||||
Low Tide | 6:28PM0.46m | 7:25AM0.45m | 7:26PM0.52m | 8:09AM0.25m | 8:15PM0.60m | 8:51AM0.06m | ||||||||||||||||||
 |  | | | | | | |  |  | |  |  | | | | | | | | | | | | |
 | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:31 | — | — | — | — |
 | 6:30 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | 6:34 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 19 | 19 | 19 | 18 | 18 | 19 | 19 | 20 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 17 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 17 |
17 | 18 | 20 | 17 | 17 | 17 | 17 | 19 | 17 | 18 | 15 | 16 | 16 | 15 | 13 | 12 | 12 | 12 | 11 | 11 | 12 | 14 | 14 | 15 | |
Swell 1 Height (m) Direction Period (s) | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | ESE 10 | E 10 | ESE 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 |
 kJ | 166 | 172 | 168 | 165 | 199 | 242 | 287 | 334 | 356 | 356 | 307 | 335 | 279 | 282 | 314 | 235 | 231 | 273 | 226 | 188 | 211 | 175 | 171 | 173 |
Swell 2 Height (m) Direction Period (s) | NE 9 | NE 9 | NE 9 | NE 9 | NE 12 | NE 11 | 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 9 | NE 9 | NE 6 | NE 6 |
| kJ | 3 | 3 | 3 | 3 | 6 | 5 | 4 | 4 | 4 | 4 | 4 | 15 | 4 | 15 | 16 | 16 | — | 15 | — | 14 | 3 | 3 | 19 | 14 |
Swell 3 Height (m) Direction Period (s) | — | — | NE 13 | NE 13 | NE 9 | NE 8 | — | S 10 | — | S 9 | S 9 | S 9 | S 9 | — | S 7 | — | — | — | — | — | E 16 | E 16 | ENE 9 | NE 9 |
| kJ | — | — | 7 | 6 | 3 | 3 | — | 2 | — | 2 | 2 | 2 | 2 | — | 1 | — | — | — | — | — | 5 | 5 | 8 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 10 | — | NE 4 | NE 4 | NE 5 | NE 5 | NE 5 | NNE 5 | NNE 5 | NNE 5 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 26 | — | 17 | 36 | 23 | 35 | 36 | 20 | 15 | 10 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 56 | 56 | 0 | 0 | 0 | 57 | 115 | 112 | 71 | 0 | 37 | 83 | 37 | 115 | 115 | 112 | 112 | 117 | 117 | 125 | 125 | 115 | 115 | 112 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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