- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Monday 20 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
15.5° C
(Which is 2.4°C colder than average for this time of year)How big are the waves at Choshi today?
The current surf forecast for Choshi at 4PM is: 2.2m 13s primary swell from a Southeast direction and 1.7m 13s secondary swell from a East-southeast direction (forecast issued at 08:00am April 20). An open ocean swell of 0.4m 9s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Apr) | 6ft (1.9m) | 14s |
| Afternoon (20 Apr) | 7ft (2.2m) | 13s |
| Evening (20 Apr) | 5ft (1.6m) | 12s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 20 | Tuesday 21 | Wednesday 22 | Thu 23 | |||||||||||||||||||||
| 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 | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 12 | 14 | 14 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1581 | 1255 | 1127 | 1632 | 835 | 771 | 706 | 569 | 446 | 696 | 534 | 450 | 412 | 322 | 256 | 246 | 227 | 250 | 298 | 106 | 136 | 134 | 74 | 74 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | glass | cross |
High Tide / height (m) | 4:37AM 1.32 | 6:59PM 1.14 | 5:05AM 1.31 | 7:59PM 1.06 | 5:35AM 1.28 | 9:17PM 0.98 | ||||||||||||||||||
Low Tide / height (m) | 11:53AM -0.19 | 11:43PM 0.80 | 12:38PM -0.15 | 12:12AM 0.87 | 1:28PM -0.06 | 12:40AM 0.91 | ||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thu 23 | |||||||||||||||||||||
| Sunrise | 4:58 | - | - | - | - | - | - | - | 4:56 | - | - | - | - | - | - | - | 4:56 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:14 | - | - | - | - | - | - | - | 6:15 | - | - | - |
 |  | |  | |  | | | | |  | | | | | | | | | | |  |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | 1 | - |
| Temp. °C | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 19 | 19 | 16 | 17 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 18 | 18 | 19 | 18 |
| Feels °C (?) | 14 | 15 | 14 | 13 | 14 | 13 | 13 | 13 | 14 | 15 | 16 | 12 | 12 | 9 | 10 | 12 | 13 | 12 | 14 | 15 | 16 | 17 | 19 | 15 |
- Map Icons:
Break
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.
Nearest