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Surf Forecasts:
Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Sunday 10 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
17.6° C
(Which is 2.1°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 9s primary swell from a East-southeast direction and 0.1m 11s secondary swell from a East direction, 0.6m 6s secondary swell from a South-southeast direction (forecast issued at 02:00pm May 10). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | - | - |
| Afternoon (10 May) | 2ft (0.6m) | 9s |
| Evening (10 May) | 1.5ft (0.5m) | 9s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 19°C on Sun afternoon, min 17°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 10 | Monday 11 | Tuesday 12 | Wed 13 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | SE 8 | SE 8 | SE 10 | SE 10 | SE 9 | ESE 9 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | |
61 | 58 | 48 | 47 | 50 | 59 | 59 | 58 | 58 | 57 | 56 | 56 | 55 | 141 | 72 | 54 | 94 | 181 | 173 | 151 | 188 | 180 | 158 | 158 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | glassy | glassy | cross-on | |
High Tide | 00:07AM0.98m | 9:59AM0.95m | 00:40AM1.02m | 12:03PM0.96m | 1:08AM1.07m | |||||||||||||||||||
Low Tide | 4:04PM0.34m | 5:15AM0.79m | 5:19PM0.40m | 6:33AM0.64m | 6:28PM0.46m | 7:25AM0.45m | ||||||||||||||||||
 |  | |  | | | |  | | | |  | | | | | | | | | | | | | |
 | — | — | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:33 | — | — |
 | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | 6:31 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 18 |
14 | 15 | 13 | 13 | 14 | 15 | 15 | 14 | 15 | 14 | 14 | 15 | 15 | 14 | 15 | 16 | 15 | 15 | 15 | 16 | 17 | 17 | 17 | 17 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | SE 8 | SE 8 | SE 10 | NE 9 | SE 9 | ESE 9 | ESE 10 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 61 | 58 | 48 | 47 | 50 | 59 | 59 | 58 | 58 | 57 | 56 | 56 | 55 | 141 | 72 | 54 | 94 | 3 | 173 | 151 | 188 | 180 | 158 | 158 |
Swell 2 Height (m) Direction Period (s) | NE 4 | NNE 4 | E 11 | E 11 | E 10 | E 11 | E 11 | E 11 | E 11 | NE 11 | NE 13 | NE 11 | SE 8 | SE 8 | ESE 9 | ESE 9 | SE 10 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 12 | NE 11 |
| kJ | 3 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 7 | 5 | 10 | 17 | 50 | 50 | 34 | 22 | 3 | 3 | 3 | 3 | 6 | 5 |
Swell 3 Height (m) Direction Period (s) | NE 5 | E 11 | NNE 4 | NE 10 | N 8 | N 6 | N 6 | N 6 | N 6 | NE 8 | E 8 | NE 8 | ENE 11 | NE 10 | NE 10 | NE 10 | ENE 10 | — | — | — | E 13 | NE 13 | NE 12 | — |
| kJ | 1 | 2 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 2 | 11 | 17 | 16 | 15 | 9 | — | — | — | 3 | 6 | 6 | — |
Wind waves Height (m) Direction Period (s) | — | SE 3 | SSE 6 | SSE 6 | SSE 4 | S 5 | S 5 | S 5 | S 4 | S 4 | S 4 | S 4 | S 4 | — | — | — | — | SE 10 | — | — | — | — | — | — |
| kJ | — | 2 | 25 | 34 | 18 | 24 | 17 | 25 | 20 | 30 | 24 | 18 | 12 | — | — | — | — | 181 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 56 | 56 | 170 | 56 | 56 | 52 | 52 | 56 | 56 | 56 | 56 | 56 | 55 | 52 | 55 | 56 | 56 | 56 | 56 | 56 | 37 | 0 | 0 | 71 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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