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Surf Forecasts:
Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Saturday 16 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
18.6° C
(Which is 1.5°C colder than average for this time of year)How big are the waves at Choshi today?
The current surf forecast for Choshi at 11AM is: 0.8m 9s primary swell from a East direction (forecast issued at 08:00am May 16). An open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 2.5ft (0.8m) | 9s |
| Afternoon (16 May) | 2.5ft (0.8m) | 9s |
| Evening (16 May) | 2.5ft (0.7m) | 9s |
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 22°C on Mon afternoon, min 17°C on Sat morning). Winds increasing (calm on Sat night, fresh winds from the SSW by Mon afternoon). | ||||||||||||||||||||||||
Saturday 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | |
103 | 101 | 103 | 106 | 81 | 86 | 92 | 88 | 110 | 106 | 103 | 126 | 165 | 165 | 158 | 151 | 120 | 120 | 96 | 101 | 103 | 82 | 80 | 84 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | cross-on | on | cross-on | glassy | cross-off | cross-off | off | cross | cross-on | cross-on | cross | cross-off | cross | cross-off | glassy | cross-on | cross-on | cross-on | cross | cross | cross | |
High Tide | 4:34PM1.22m | 3:00AM1.31m | 5:26PM1.23m | 3:34AM1.34m | 6:18PM1.20m | |||||||||||||||||||
Low Tide | 9:33AM-0.10m | 9:41PM0.76m | 10:15AM-0.20m | 10:20PM0.82m | 10:59AM-0.24m | 10:58PM0.87m | ||||||||||||||||||
 | | | | |  | |  |  | | | | | | | | | | | | | | | | |
 | 4:31 | — | — | — | — | — | — | 4:30 | — | — | — | — | — | — | — | 4:30 | — | — | — | — | — | — | — | 4:28 |
 | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:36 | — | — | 6:37 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 17 | 18 | 19 | 19 | 18 | 18 | 18 | 18 | 21 | 21 | 20 | 20 | 20 | 20 | 17 | 17 | 19 | 21 | 22 | 21 | 20 | 20 | 19 |
15 | 16 | 16 | 17 | 17 | 17 | 18 | 17 | 17 | 19 | 17 | 17 | 19 | 19 | 19 | 15 | 16 | 19 | 20 | 19 | 17 | 17 | 18 | 17 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 103 | 101 | 103 | 106 | 81 | 86 | 92 | 88 | 110 | 106 | 103 | 126 | 165 | 165 | 158 | 151 | 120 | 120 | 96 | 101 | 103 | 82 | 80 | 84 |
Swell 2 Height (m) Direction Period (s) | NE 6 | NE 8 | NE 8 | NE 8 | NE 8 | NE 9 | NE 8 | NE 8 | NE 9 | SE 11 | SE 11 | NE 10 | NE 9 | NE 10 | ENE 10 | NE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 6 | 17 | 17 | 10 | 17 | 12 | 11 | 11 | 3 | 5 | 5 | 32 | 31 | 24 | 10 | 27 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | ENE 8 | ESE 11 | ESE 11 | SE 11 | SE 11 | SE 11 | SE 13 | SE 11 | SE 11 | NE 9 | ENE 9 | SE 10 | ENE 9 | ENE 9 | NE 9 | NE 9 | — | SE 10 | NNE 4 | NE 4 | NE 4 | SSE 7 | SSE 7 | — |
| kJ | 7 | 12 | 12 | 5 | 5 | 5 | 7 | 5 | 5 | 28 | 16 | 28 | 16 | 16 | 12 | 12 | — | 16 | 2 | 1 | 1 | 5 | 10 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 3 | — | — | S 3 | S 4 | S 4 | S 4 | SSW 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 5 | 25 | 22 | 13 | 18 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 71 | 71 | 112 | 56 | 56 | 52 | 0 | 0 | 0 | 0 | 56 | 56 | 56 | 52 | 0 | 71 | 0 | 0 | 56 | 56 | 206 | 206 | 206 | 206 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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