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Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 am Wednesday 13 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 6AM is: 1.1m 9s primary swell from a East-southeast direction (forecast issued at 02:00am May 13). An open ocean swell of 0.1m 12s 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 (1.3m) | 10s |
| Evening (13 May) | 4.5ft (1.3m) | 10s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Warm (max 20°C on Wed morning, min 15°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | ||||||||||||||||||||||
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 | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
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 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 | |
168 | 165 | 199 | 242 | 248 | 305 | 307 | 307 | 307 | 294 | 288 | 267 | 257 | 185 | 212 | 217 | 211 | 211 | 175 | 175 | 175 | 171 | 173 | 138 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross-on | on | on | on | |
High Tide | 1:08AM1.07m | 1:33PM1.03m | 1:34AM1.12m | 2:41PM1.11m | 2:01AM1.19m | 3:40PM1.18m | ||||||||||||||||||
Low Tide | 7:25AM0.45m | 7:26PM0.52m | 8:09AM0.25m | 8:15PM0.60m | 8:51AM0.06m | 9:00PM0.68m | ||||||||||||||||||
 | |  | | | | |  |  |  |  |  |  | | | | | |  | | | | | | |
 | — | 4:33 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:31 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:34 | — |
— | — | — | — | — | — | — | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 19 | 18 | 18 | 19 | 20 | 20 | 20 | 20 | 18 | 18 | 17 | 18 | 18 | 17 | 16 | 15 | 15 | 15 | 15 | 15 | 16 | 17 | 18 | 18 |
20 | 17 | 18 | 18 | 18 | 18 | 19 | 20 | 16 | 17 | 15 | 16 | 15 | 13 | 12 | 11 | 12 | 12 | 12 | 12 | 14 | 16 | 17 | 17 | |
Swell 1 Height (m) Direction Period (s) | 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 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 |
 kJ | 168 | 165 | 199 | 242 | 248 | 305 | 307 | 307 | 307 | 294 | 288 | 267 | 257 | 185 | 212 | 217 | 211 | 211 | 175 | 175 | 175 | 171 | 173 | 138 |
Swell 2 Height (m) Direction Period (s) | 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 10 | NE 10 | ENE 9 | NE 5 | NE 7 | NE 7 | NE 7 | NE 7 |
| kJ | 3 | 3 | 6 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 25 | 16 | 15 | 15 | 15 | 4 | 8 | 13 | 21 | 16 | 16 | 16 |
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 | — | — | — | — | S 7 | E 16 | ENE 9 | ENE 9 | NE 9 | NE 9 | NE 9 |
| kJ | 7 | 6 | 3 | 3 | — | 2 | — | 2 | 2 | 2 | 2 | — | 1 | — | — | — | — | 1 | 5 | 8 | 7 | 19 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NNE 3 | — | NE 10 | NE 4 | NE 4 | NNE 5 | NE 5 | NE 5 | NNE 5 | NE 9 | — | — | — | SE 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | 2 | — | 4 | 14 | 21 | 31 | 25 | 20 | 17 | 41 | — | — | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 71 | 112 | 56 | 56 | 0 | 0 | 0 | 37 | 37 | 117 | 112 | 159 | 117 | 125 | 117 | 125 | 115 | 112 | 170 | 56 | 56 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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