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Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 am Thursday 23 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
16.9° 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 4PM is: 0.5m 10s primary swell from a East direction and 0.6m 6s secondary swell from a Southeast direction (forecast issued at 08:00am April 23). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Apr) | 1.5ft (0.5m) | 10s |
| Afternoon (23 Apr) | 1.5ft (0.5m) | 10s |
| Evening (23 Apr) | 1.5ft (0.4m) | 9s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 35mm), heaviest during Thu night. Very mild (max 18°C on Thu morning, min 12°C on Thu night). Winds decreasing (strong winds from the NNE on Thu night, light winds from the ESE by Sat night). | ||||||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sun 26 | |||||||||||||||||||||
6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 14 | E 10 | E 10 | E 10 | E 10 | ESE 9 | ESE 9 | ESE 9 | ESE 11 | SE 12 | SSE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 14 | ENE 14 | ENE 14 | ENE 13 | E 7 | E 7 | E 7 | ENE 16 | ENE 15 | ENE 15 | |
79 | 50 | 49 | 49 | 47 | 29 | 29 | 29 | 40 | 25 | 40 | 211 | 186 | 186 | 752 | 767 | 714 | 632 | 100 | 89 | 124 | 217 | 387 | 372 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | on | on | on | |
High Tide | 6:08AM1.21m | 11:30PM0.95m | 6:50AM1.10m | 00:56AM0.96m | 8:13AM0.98m | 1:23AM0.98m | ||||||||||||||||||
Low Tide | 2:27PM0.06m | 1:20AM0.94m | 3:41PM0.19m | 4:00AM0.93m | 5:10PM0.28m | |||||||||||||||||||
 |  | | |  |  | |  | | | | | |  | | | | | |  | |  | |  | |
 | 4:54 | — | — | — | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:50 |
 | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:16 | — | — | 6:17 |
— | 1 | 1 | 4 | 7 | 9 | 8 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 18 | 18 | 15 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 14 | 13 | 13 | 12 | 13 | 12 | 13 | 13 | 13 | 13 | 14 |
18 | 17 | 16 | 14 | 13 | 9 | 5 | 4 | 3 | 4 | 4 | 7 | 8 | 8 | 7 | 7 | 6 | 8 | 7 | 9 | 9 | 10 | 10 | 12 | |
Swell 1 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 9 | ESE 9 | ESE 11 | ESE 11 | SSE 8 | SSE 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | NE 13 | NE 13 | E 6 | E 7 | ENE 15 | ENE 15 |
 kJ | 45 | 43 | 28 | 27 | 16 | 16 | 29 | 29 | 40 | 25 | 40 | 41 | 37 | 24 | 23 | 21 | 11 | 11 | 175 | 172 | 66 | 69 | 387 | 372 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 9 | SE 6 | SE 12 | SE 12 | SSE 8 | ESE 10 | NE 15 | N 6 | NE 15 | S 8 | S 8 | S 8 | S 8 | SSE 7 | NE 17 | NE 13 | ENE 16 | E 6 | E 6 |
| kJ | 50 | 50 | 49 | 49 | 47 | 29 | 8 | 22 | 22 | 14 | 20 | 79 | 46 | 262 | 69 | 46 | 43 | 28 | 10 | 71 | 162 | 217 | 48 | 43 |
Swell 3 Height (m) Direction Period (s) | ENE 14 | NE 14 | NE 13 | NE 13 | NE 13 | NE 13 | SE 12 | — | S 10 | SE 12 | NE 13 | E 9 | NE 15 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | SE 11 | SSE 7 | ENE 16 | ENE 12 | — | E 13 |
| kJ | 79 | 48 | 45 | 44 | 44 | 27 | 23 | — | 2 | 22 | 58 | 27 | 183 | 14 | 14 | 14 | 14 | 14 | 5 | 5 | 103 | 94 | — | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NNE 2 | NNE 4 | NE 6 | NE 6 | NE 7 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 14 | ENE 14 | ENE 14 | ENE 13 | E 7 | E 7 | E 7 | E 7 | — | SE 5 |
| kJ | — | — | — | — | — | 1 | 40 | 202 | 293 | 290 | 275 | 211 | 186 | 186 | 752 | 767 | 714 | 632 | 100 | 89 | 124 | 121 | — | 21 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 37 | 55 | 55 | 56 | 37 | 610 | 257 | 257 | 266 | 117 | 122 | 266 | 694 | 117 | 610 | 266 | 609 | 591 | 609 | 916 | 56 | 117 | 71 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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