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Surf Forecasts:
Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm Saturday 23 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
20.2° C
(Which is slightly cooler than normal)How big are the waves at Choshi today?
The current surf forecast for Choshi at 3AM is: 1.4m 9s primary swell from a East direction (forecast issued at 08:00pm May 23). An open ocean swell of 0.1m 10s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 May) | 4.5ft (1.4m) | 9s |
| Afternoon (24 May) | 5ft (1.6m) | 9s |
| Evening (24 May) | 5ft (1.6m) | 7s |
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 Sun morning. Warm (max 21°C on Mon afternoon, min 18°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ESE 9 | ESE 7 | E 9 | E 9 | E 9 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | |
430 | 372 | 320 | 318 | 320 | 327 | 391 | 391 | 374 | 233 | 229 | 202 | 211 | 326 | 270 | 255 | 260 | 254 | 254 | 259 | 210 | 202 | 202 | 161 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | on | on | on | on | on | on | on | on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | |
High Tide | 10:48PM1.00m | 9:02AM0.96m | 11:30PM1.02m | 11:17AM0.90m | 00:05AM1.05m | 1:04PM0.93m | ||||||||||||||||||
Low Tide | 3:13PM0.26m | 4:03AM0.79m | 4:16PM0.40m | 5:46AM0.66m | 5:20PM0.52m | 6:53AM0.51m | ||||||||||||||||||
 |  | |  |  |  | |  | | | |  | | | | | | | | | | | | | |
 | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:24 | — | — | — | — | — | — | — | 4:24 | — | — | — | — |
 | 6:39 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | 6:42 |
— | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 18 | 19 | 19 | 19 | 19 | 20 | 20 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 20 | 20 | 19 | 20 | 21 | 21 |
13 | 15 | 17 | 16 | 16 | 16 | 17 | 18 | 17 | 19 | 19 | 20 | 20 | 19 | 19 | 21 | 21 | 21 | 21 | 21 | 19 | 19 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ESE 7 | E 9 | E 9 | E 9 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
 kJ | 430 | 372 | 320 | 318 | 320 | 327 | 391 | 391 | 344 | 233 | 215 | 202 | 211 | 326 | 270 | 255 | 260 | 254 | 254 | 259 | 210 | 202 | 202 | 161 |
Swell 2 Height (m) Direction Period (s) | S 7 | — | NE 10 | NE 10 | NE 10 | NE 10 | ESE 10 | ESE 10 | ESE 11 | ESE 11 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
| kJ | 4 | — | 16 | 4 | 4 | 14 | 10 | 10 | 12 | 11 | 105 | 105 | 105 | 108 | 113 | 116 | 122 | 112 | 112 | 114 | 109 | 80 | 80 | 82 |
Swell 3 Height (m) Direction Period (s) | — | — | — | NE 10 | — | — | — | — | — | E 16 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | SE 16 | S 10 | SSW 9 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 |
| kJ | — | — | — | 4 | — | — | — | — | — | 5 | 12 | 12 | 11 | 12 | 10 | 2 | 7 | 5 | 5 | 4 | 4 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SE 5 | SSE 6 | E 9 | ESE 9 | ESE 9 | SE 7 | SE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 35 | 39 | 325 | 333 | 374 | 189 | 229 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 674 | 117 | 674 | 56 | 56 | 56 | 115 | 117 | 117 | 56 | 117 | 71 | 71 | 117 | 115 | 112 | 56 | 117 | 71 | 71 | 71 | 125 | 112 | 112 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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