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Surf Forecasts:
Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm Wednesday 10 Dec 2025 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 1.5°C colder than average for this time of year)How big are the waves at Choshi today?
The current surf forecast for Choshi at 2AM is: 0.5m 10s primary swell from a East direction and 0.6m 4s secondary swell from a East-northeast direction (forecast issued at 08:00pm December 10). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 2ft (0.6m) | 10s |
| Afternoon (11 Dec) | 1.5ft (0.4m) | 10s |
| Evening (11 Dec) | 5.5ft (1.7m) | 6s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wed 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 6 | 7 | 7 | 10 | 11 | 11 | 11 | 13 | 12 | 12 | 11 | 14 | 13 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 49 | 48 | 56 | 51 | 50 | 75 | 48 | 31 | 45 | 181 | 154 | 67 | 37 | 38 | 38 | 39 | 84 | 75 | 101 | 64 | 62 | 56 | 108 | 104 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross | cross- on | on | cross- off | cross- off | cross | cross | cross | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | cross- off |
High Tide / height (m) | 6:32PM 1.29 | 9:29AM 1.19 | 7:34PM 1.15 | 10:06AM 1.19 | 9:04PM 1.02 | 10:44AM 1.21 | ||||||||||||||||||
Low Tide / height (m) | 2:09AM 0.32 | 2:35PM 0.95 | 2:53AM 0.48 | 4:14PM 0.87 | 3:40AM 0.62 | |||||||||||||||||||
Wed 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:37 | - | - |
| Sunset | - | - | - | - | - | - | - | 4:22 | - | - | - | - | - | - | - | 4:22 | - | - | - | - | - | - | - | 4:22 |
 | |  | |  |  | |  | | | | | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 12 | 12 | 12 | 13 | 14 | 11 | 12 | 15 | 14 | 16 | 15 | 10 | 8 | 7 | 7 | 7 | 5 | 5 | 4 | 5 | 5 | 5 | 6 | 5 |
| Feels °C (?) | 6 | 6 | 7 | 9 | 11 | 8 | 8 | 8 | 4 | 6 | 5 | 0 | -2 | -4 | -5 | -3 | -5 | -3 | -3 | -1 | -1 | 1 | 3 | 1 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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