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Surf Forecasts:
Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm Thursday 07 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
17.9° C
(Which is 1.6°C colder than average for this time of year)How big are the waves at Choshi today?
The current surf forecast for Choshi at 4AM is: 1.5m 7s primary swell from a South direction and 1.0m 7s secondary swell from a South-southeast direction, 0.5m 10s secondary swell from a East-southeast direction (forecast issued at 08:00pm May 07). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 May) | 4.5ft (1.4m) | 7s |
| Afternoon (08 May) | 5ft (1.5m) | 6s |
| Evening (08 May) | 8ft (2.5m) | 8s |
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 Fri morning, min 15°C on Fri night). Winds decreasing (strong winds from the SSW on Fri afternoon, calm by Sun morning). | ||||||||||||||||||||||||
Thu 7 | Friday 8 | Saturday 9 | Sunday 10 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
SSE 6 | SSE 6 | S 6 | S 7 | S 7 | S 7 | S 7 | S 6 | S 7 | SSW 8 | SSE 8 | SSE 8 | SSE 8 | S 8 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | SE 10 | SE 9 | |
68 | 58 | 94 | 236 | 214 | 179 | 89 | 149 | 248 | 675 | 212 | 137 | 107 | 86 | 57 | 79 | 132 | 89 | 104 | 82 | 80 | 65 | 46 | 85 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross-off | cross | cross | glassy | off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | off | glassy | cross-on | |
High Tide | 8:46PM0.98m | 6:13AM1.15m | 9:56PM0.95m | 6:59AM1.09m | 11:14PM0.96m | 8:09AM1.01m | ||||||||||||||||||
Low Tide | 00:59AM0.85m | 1:59PM0.18m | 1:52AM0.87m | 2:56PM0.26m | 3:21AM0.87m | |||||||||||||||||||
 |  |  | |  | |  | | |  | | | | |  | | | | | | | | | | |
 | — | — | — | 4:37 | — | — | — | — | — | — | — | 4:37 | — | — | — | — | — | — | — | 4:35 | — | — | — | — |
 | 6:27 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:29 | — | — | — | — | — | — | 6:30 |
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 19 | 19 | 19 | 19 | 21 | 22 | 21 | 21 | 21 | 20 | 17 | 15 | 17 | 20 | 19 | 18 | 17 | 16 | 16 | 16 | 18 | 19 | 19 |
19 | 17 | 16 | 17 | 18 | 19 | 19 | 16 | 15 | 16 | 19 | 13 | 10 | 16 | 16 | 12 | 13 | 11 | 11 | 12 | 13 | 14 | 16 | 13 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | SSE 7 | SSE 7 | SSE 7 | ESE 10 | ESE 10 | ESE 10 | S 7 | SSE 8 | SSE 8 | SSE 8 | S 8 | S 8 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | SE 10 | NNE 4 |
 kJ | 40 | 58 | 59 | 96 | 77 | 73 | 60 | 62 | 63 | 279 | 212 | 137 | 107 | 86 | 45 | 79 | 132 | 89 | 104 | 82 | 80 | 65 | 46 | 2 |
Swell 2 Height (m) Direction Period (s) | E 11 | E 11 | E 12 | ESE 10 | ESE 10 | ESE 10 | E 11 | E 11 | E 11 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | NE 5 | ESE 10 | E 10 | E 10 | S 4 | E 4 | — | NE 6 | NE 4 | NE 4 | — |
| kJ | 2 | 2 | 3 | 58 | 59 | 59 | 2 | 2 | 2 | 44 | 62 | 60 | 58 | 20 | 57 | 2 | 2 | 3 | 1 | — | 1 | 3 | 3 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 12 | E 11 | E 11 | — | — | — | E 11 | NE 11 | NE 11 | — | ESE 10 | NE 5 | NE 10 | NNE 4 | E 10 | — | NE 10 | E 11 | NE 6 | NE 6 | NE 11 |
| kJ | — | — | — | 3 | 3 | 2 | — | — | — | 2 | 5 | 5 | — | 58 | 10 | 4 | 9 | 2 | — | 4 | 2 | 1 | 1 | 5 |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 6 | S 6 | S 7 | S 7 | S 7 | S 7 | S 6 | S 7 | SSW 8 | NE 3 | NE 5 | NE 5 | — | — | NNE 4 | NE 4 | NE 4 | NNE 4 | NNE 5 | NNE 4 | — | — | SE 9 |
| kJ | 68 | 57 | 94 | 236 | 214 | 179 | 89 | 149 | 248 | 675 | 3 | 60 | 35 | — | — | 7 | 5 | 4 | 4 | 19 | 8 | — | — | 85 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 56 | 159 | 135 | 135 | 135 | 207 | 350 | 591 | 610 | 627 | 0 | 37 | 71 | 0 | 0 | 71 | 112 | 56 | 71 | 0 | 0 | 0 | 52 | 56 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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