Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm Saturday 27 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
15.9° C
(Which is 2.3°C colder than average for this time of year)How big are the waves at Choshi today?
The current surf forecast for Choshi at 1AM is: 0.8m 14s primary swell from a East direction and 0.4m 9s secondary swell from a Southeast direction (forecast issued at 08:00pm December 27). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Dec) | 2.5ft (0.8m) | 14s |
| Afternoon (28 Dec) | 2.5ft (0.7m) | 13s |
| Evening (28 Dec) | 2.5ft (0.7m) | 13s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 27 | Sunday 28 | Monday 29 | Tuesday 30 | |||||||||||||||||||||
| 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) (?) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 16 | 16 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 297 | 297 | 232 | 236 | 246 | 250 | 236 | 173 | 171 | 171 | 168 | 123 | 115 | 110 | 108 | 75 | 75 | 73 | 72 | 46 | 99 | 138 | 128 | 121 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | off | off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross- on | glass | on | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | off | off | glass | cross |
High Tide / height (m) | 8:28PM 1.12 | 9:41AM 1.25 | 10:10PM 1.02 | 10:18AM 1.27 | 12:40AM 1.00 | 11:02AM 1.30 | ||||||||||||||||||
Low Tide / height (m) | 3:08PM 0.77 | 2:54AM 0.56 | 4:27PM 0.65 | 3:40AM 0.73 | 5:48PM 0.48 | 4:38AM 0.89 | ||||||||||||||||||
Sat 27 | Sunday 28 | Monday 29 | Tuesday 30 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:45 | - | - |
| Sunset | - | - | - | - | - | - | - | 4:30 | - | - | - | - | - | - | - | 4:30 | - | - | - | - | - | - | - | 4:30 |
 |  | | | |  | | | | | | |  |  | | |  | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - |
| Temp. °C | 7 | 7 | 7 | 6 | 6 | 9 | 8 | 9 | 9 | 9 | 10 | 11 | 11 | 12 | 13 | 13 | 13 | 13 | 12 | 10 | 9 | 9 | 10 | 12 |
| Feels °C (?) | 3 | 3 | 2 | 0 | 0 | 2 | 2 | 4 | 4 | 5 | 7 | 8 | 7 | 6 | 8 | 8 | 8 | 6 | 5 | 5 | 4 | 5 | 7 | 8 |
- 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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