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Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 am Saturday 09 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
17.0° 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 5AM is: 0.9m 8s primary swell from a South-southeast direction and 0.5m 10s secondary swell from a East-southeast direction, 0.8m 4s secondary swell from a Northeast direction (forecast issued at 02:00am May 09). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 2.5ft (0.8m) | 8s |
| Afternoon (09 May) | 2ft (0.6m) | 10s |
| Evening (09 May) | 2ft (0.6m) | 10s |
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 20°C on Sat afternoon, min 16°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 9 | Sunday 10 | Monday 11 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SSW 7 | SSE 8 | SSE 8 | SSE 8 | ESE 10 | ESE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | ESE 10 | ESE 9 | SSE 5 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | |
572 | 123 | 105 | 83 | 59 | 71 | 108 | 89 | 71 | 68 | 65 | 94 | 61 | 49 | 48 | 47 | 50 | 59 | 59 | 58 | 58 | 57 | 56 | 56 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross | cross | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 9:56PM0.95m | 6:59AM1.09m | 11:14PM0.96m | 8:09AM1.01m | 00:07AM0.98m | 9:59AM0.95m | ||||||||||||||||||
Low Tide | 1:52AM0.87m | 2:56PM0.26m | 3:21AM0.87m | 4:04PM0.34m | 5:15AM0.79m | 5:19PM0.40m | ||||||||||||||||||
 |  |  |  | |  | |  | | | | | | | | | | | | | | | | | |
 | — | 4:37 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 17 | 16 | 16 | 19 | 20 | 19 | 18 | 17 | 17 | 17 | 17 | 18 | 17 | 17 | 18 | 18 | 17 | 17 | 18 | 18 | 18 | 18 | 18 |
19 | 13 | 11 | 12 | 15 | 14 | 15 | 14 | 13 | 13 | 13 | 14 | 14 | 12 | 12 | 14 | 14 | 14 | 15 | 15 | 13 | 13 | 14 | 15 | |
Swell 1 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | SSE 8 | S 8 | ESE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
 kJ | 226 | 123 | 105 | 83 | 44 | 71 | 108 | 89 | 71 | 68 | 65 | 94 | 61 | 49 | 48 | 47 | 50 | 59 | 59 | 58 | 58 | 57 | 56 | 56 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | NE 5 | ESE 10 | S 7 | NE 4 | NE 4 | NNE 4 | SSE 4 | SSE 4 | NNE 3 | NNE 4 | NNE 4 | NE 4 | E 10 | E 10 | E 11 | E 11 | E 11 | E 11 | NE 11 | E 13 | NE 12 |
| kJ | 42 | 58 | 59 | 17 | 59 | 16 | 5 | 4 | 4 | 5 | 6 | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 4 | 6 |
Swell 3 Height (m) Direction Period (s) | E 11 | NE 11 | E 11 | ESE 10 | NE 4 | — | E 10 | — | — | NNE 4 | NE 6 | NE 6 | NE 5 | — | E 11 | NE 4 | N 9 | NE 11 | NE 11 | N 6 | N 6 | NE 11 | NE 8 | NE 8 |
| kJ | 2 | 5 | 2 | 58 | 7 | — | 2 | — | — | 2 | 1 | 1 | 1 | — | 2 | 1 | 1 | 4 | 5 | 1 | 1 | 4 | 3 | 2 |
Wind waves Height (m) Direction Period (s) | SSW 7 | NE 4 | NE 5 | NNE 5 | NW 2 | NE 4 | — | SSE 3 | S 3 | S 6 | NNE 4 | S 6 | SSE 4 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | S 5 | S 5 | S 5 | S 4 | S 4 | S 4 | S 4 |
| kJ | 572 | 27 | 25 | 42 | 2 | 6 | — | 3 | 5 | 27 | 2 | 21 | 12 | 37 | 48 | 37 | 27 | 23 | 23 | 17 | 20 | 28 | 22 | 16 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 609 | 627 | 0 | 37 | 71 | 71 | 74 | 71 | 37 | 56 | 56 | 37 | 56 | 56 | 112 | 610 | 56 | 56 | 56 | 52 | 52 | 56 | 56 | 56 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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