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Surf Forecasts:
Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Friday 12 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
18.0° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Choshi today?
The current surf forecast for Choshi at 5PM is: 0.5m 13s primary swell from a East direction and 0.2m 13s secondary swell from a East-northeast direction (forecast issued at 02:00pm December 12). An open ocean swell of 1.0m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | - | - |
| Afternoon (12 Dec) | 1.5ft (0.4m) | 11s |
| Evening (12 Dec) | 1.5ft (0.5m) | 12s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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 | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 13 | 12 | 12 | 11 | 14 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 6 | 6 | 9 | 10 | 10 | 11 | 11 | 11 | 11 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 38 | 39 | 84 | 75 | 99 | 65 | 61 | 56 | 104 | 104 | 103 | 127 | 64 | 64 | 65 | 73 | 424 | 1187 | 904 | 829 | 814 | 673 | 322 | 198 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | cross | cross | cross- on | on | off | off | cross- off | cross- off | off | cross- off | off | cross- off | cross- off | cross- off | off |
High Tide / height (m) | 10:06AM 1.19 | 9:04PM 1.02 | 10:44AM 1.21 | 11:29PM 0.95 | 11:23AM 1.25 | 1:26AM 0.98 | ||||||||||||||||||
Low Tide / height (m) | 4:14PM 0.87 | 3:40AM 0.62 | 5:52PM 0.74 | 4:33AM 0.75 | 6:58PM 0.59 | 5:36AM 0.85 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 |
| Sunset | - | 4:22 | - | - | - | - | - | - | - | 4:22 | - | - | - | - | - | - | - | 4:23 | - | - | - | - | - | - |
 |  |  |  |  | | |  | | | |  | | | |  |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 3 | - | 9 | 4 | 2 | - | - | - | - | - | - |
| Temp. °C | 7 | 8 | 6 | 5 | 5 | 5 | 5 | 6 | 7 | 6 | 8 | 10 | 12 | 11 | 7 | 8 | 10 | 9 | 9 | 11 | 11 | 11 | 9 | 10 |
| Feels °C (?) | -3 | 0 | -3 | -3 | -1 | -1 | -1 | 1 | 4 | 2 | 3 | 6 | 8 | 6 | 3 | 5 | 6 | 5 | 4 | 3 | 3 | 2 | -1 | 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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