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Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Thursday 23 Apr 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 1.0°C colder than average for this time of year)How big are the waves at Choshi today?
The current surf forecast for Choshi at 6PM is: 0.5m 10s primary swell from a East direction and 0.8m 6s secondary swell from a Southeast direction (forecast issued at 02:00pm April 23). An open ocean swell of 0.4m 13s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Apr) | - | - |
| Afternoon (23 Apr) | 1.5ft (0.5m) | 10s |
| Evening (23 Apr) | 1.5ft (0.4m) | 9s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 25mm), heaviest during Thu night. Very mild (max 16°C on Sun morning, min 12°C on Thu night). Winds decreasing (strong winds from the NNE on Thu night, light winds from the ESE by Sat night). | ||||||||||||||||||||||||
Thu 23 | Friday 24 | Saturday 25 | Sun 26 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
E 10 | E 10 | E 10 | ESE 9 | ENE 13 | ESE 9 | ESE 11 | ESE 11 | SSE 8 | ENE 6 | ENE 6 | ENE 7 | ENE 14 | ENE 14 | ENE 14 | ENE 7 | E 7 | E 7 | E 7 | ENE 16 | ENE 15 | ENE 15 | ENE 14 | ENE 14 | |
49 | 49 | 47 | 29 | 111 | 29 | 40 | 40 | 40 | 193 | 165 | 166 | 789 | 767 | 168 | 114 | 89 | 89 | 103 | 217 | 387 | 372 | 357 | 347 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | |
High Tide | 11:30PM0.95m | 6:50AM1.10m | 00:56AM0.96m | 8:13AM0.98m | 1:23AM0.98m | |||||||||||||||||||
Low Tide | 2:27PM0.06m | 1:20AM0.94m | 3:41PM0.19m | 4:00AM0.93m | 5:10PM0.28m | 6:50AM0.79m | ||||||||||||||||||
 | | |  | |  | |  |  | | |  | | | | | | | | | | | | | |
 | — | — | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:50 | — | — |
 | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | 6:17 |
1 | 2 | 3 | 6 | 9 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 19 | 15 | 14 | 14 | 14 | 13 | 12 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 15 |
17 | 12 | 13 | 12 | 8 | 6 | 3 | 6 | 6 | 7 | 8 | 8 | 7 | 7 | 5 | 7 | 8 | 9 | 9 | 10 | 10 | 11 | 12 | 12 | |
Swell 1 Height (m) Direction Period (s) | SE 6 | E 10 | E 10 | SE 6 | ESE 9 | ESE 9 | ESE 11 | ESE 11 | SSE 8 | SSE 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | ENE 14 | NE 13 | NE 13 | NE 13 | NE 12 | ENE 16 | ENE 15 | ENE 15 | ENE 14 | ENE 14 |
 kJ | 28 | 49 | 47 | 25 | 29 | 29 | 40 | 40 | 40 | 40 | 37 | 24 | 22 | 21 | 168 | 178 | 175 | 172 | 159 | 217 | 387 | 372 | 357 | 347 |
Swell 2 Height (m) Direction Period (s) | E 10 | NE 13 | NE 13 | ESE 9 | SE 6 | SE 5 | SE 5 | SSE 8 | ESE 11 | NE 15 | NE 15 | NE 15 | S 8 | S 8 | SSE 8 | SSE 8 | SSE 7 | NE 17 | ENE 16 | ENE 12 | E 6 | E 6 | E 6 | E 5 |
| kJ | 49 | 44 | 44 | 29 | 11 | 7 | 7 | 13 | 25 | 110 | 183 | 262 | 66 | 63 | 19 | 11 | 10 | 71 | 103 | 94 | 67 | 45 | 39 | 28 |
Swell 3 Height (m) Direction Period (s) | NE 13 | SE 13 | SE 12 | NE 13 | SE 12 | SE 12 | SE 12 | E 9 | E 9 | E 9 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | SE 11 | SSE 7 | SSE 7 | S 7 | E 13 | SE 13 | SE 13 | SE 11 |
| kJ | 45 | 26 | 24 | 27 | 23 | 22 | 22 | 26 | 26 | 23 | 14 | 14 | 14 | 14 | 14 | 14 | 5 | 10 | 5 | 15 | 3 | 7 | 7 | 5 |
Wind waves Height (m) Direction Period (s) | — | SE 6 | SE 6 | E 6 | ENE 13 | NNE 4 | NE 6 | NE 7 | NE 7 | ENE 6 | ENE 6 | ENE 7 | ENE 14 | ENE 14 | ENE 7 | ENE 7 | E 7 | E 7 | E 7 | E 7 | — | — | — | SE 6 |
| kJ | — | 27 | 38 | 20 | 111 | 62 | 252 | 299 | 246 | 193 | 165 | 166 | 789 | 767 | 121 | 114 | 89 | 89 | 86 | 71 | — | — | — | 31 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 55 | 56 | 56 | 37 | 350 | 257 | 159 | 128 | 117 | 170 | 159 | 117 | 117 | 266 | 610 | 266 | 123 | 170 | 916 | 56 | 117 | 117 | 266 | 56 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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