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Surf Forecasts:
Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm Saturday 18 Apr 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
15.0° C
(Which is 2.9°C colder than average for this time of year)How big are the waves at Choshi today?
The current surf forecast for Choshi at 3AM is: 1.5m 15s primary swell from a Southeast direction and 1.1m 11s secondary swell from a East direction (forecast issued at 08:00pm April 18). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Apr) | 5ft (1.6m) | 14s |
| Afternoon (19 Apr) | 6ft (1.8m) | 14s |
| Evening (19 Apr) | 7ft (2.1m) | 16s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| 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) (?) | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1019 | 993 | 979 | 953 | 1092 | 1077 | 1179 | 1307 | 1486 | 2002 | 1801 | 1785 | 1581 | 1367 | 1077 | 987 | 797 | 739 | 669 | 647 | 461 | 549 | 466 | 427 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross- off | glass | cross- off | cross | cross | cross- on | cross- on | cross | cross | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- on |
High Tide / height (m) | 5:15PM 1.25 | 4:12AM 1.30 | 6:06PM 1.21 | 4:37AM 1.32 | 6:59PM 1.14 | 5:05AM 1.31 | ||||||||||||||||||
Low Tide / height (m) | 10:42PM 0.61 | 11:12AM -0.16 | 11:13PM 0.71 | 11:53AM -0.19 | 11:43PM 0.80 | 12:38PM -0.15 | ||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:00 | - | - | - | - | - | - | - | 4:58 | - | - | - | - | - | - | - | 4:56 | - | - | - |
| Sunset | 6:10 | - | - | - | - | - | - | - | 6:12 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - |
 |  | | |  | | | | |  | | | | |  | | | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | - |
| Temp. °C | 17 | 17 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 19 | 16 | 16 |
| Feels °C (?) | 16 | 15 | 14 | 15 | 16 | 16 | 15 | 14 | 15 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 14 | 13 | 15 | 13 | 13 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Choshi surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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