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Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Tuesday 19 May 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
18.8° C
(Which is 1.5°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: 0.6m 10s primary swell from a East-southeast direction and 0.2m 9s secondary swell from a East-northeast direction, 1.0m 5s secondary swell from a South direction (forecast issued at 02:00pm May 19). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | - | - |
| Afternoon (19 May) | 2.5ft (0.7m) | 10s |
| Evening (19 May) | 2ft (0.6m) | 10s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 33mm), heaviest during Thu night. Warm (max 24°C on Wed morning, min 16°C on Fri morning). Winds increasing (calm on Thu morning, near gales from the NNE by Fri morning). | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ENE 6 | SSE 7 | SSE 8 | S 8 | S 8 | ESE 10 | S 8 | ENE 8 | |
96 | 100 | 78 | 80 | 88 | 88 | 88 | 78 | 86 | 75 | 74 | 72 | 74 | 74 | 74 | 74 | 119 | 91 | 79 | 84 | 64 | 35 | 29 | 746 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | |
High Tide | 7:10PM1.16m | 4:49AM1.33m | 8:04PM1.10m | 5:33AM1.27m | 9:00PM1.05m | 6:23AM1.19m | ||||||||||||||||||
Low Tide | 11:44AM-0.22m | 11:37PM0.90m | 12:32PM-0.15m | 00:19AM0.91m | 1:22PM-0.03m | 1:10AM0.90m | ||||||||||||||||||
 | |  |  |  | | | | | |  | | |  |  | | | | | | |  |  | | |
 | — | — | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:26 | — | — |
 | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | 6:38 |
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | 1 | 3 | 3 | 1 | 1 | 7 | 6 | 5 | |
Temp °C | 22 | 21 | 20 | 20 | 20 | 20 | 20 | 22 | 24 | 24 | 23 | 22 | 21 | 21 | 21 | 20 | 20 | 18 | 17 | 17 | 17 | 17 | 17 | 16 |
18 | 17 | 17 | 18 | 19 | 18 | 18 | 20 | 21 | 20 | 20 | 22 | 22 | 22 | 23 | 21 | 23 | 14 | 13 | 12 | 12 | 12 | 11 | 8 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SSE 6 | SSE 7 | NE 6 | SSE 8 | S 8 | S 8 | S 8 | S 8 | SSE 7 |
 kJ | 96 | 100 | 78 | 80 | 88 | 88 | 88 | 78 | 86 | 75 | 74 | 72 | 74 | 74 | 74 | 24 | 49 | 73 | 79 | 84 | 64 | 31 | 29 | 18 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | ENE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | S 5 | ESE 10 | NNE 6 | SSE 7 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | — | — |
| kJ | 8 | 8 | 21 | 20 | 19 | 19 | 18 | 14 | 14 | 7 | 7 | 6 | 6 | 5 | 17 | 74 | 54 | 91 | 54 | 31 | 51 | 35 | — | — |
Swell 3 Height (m) Direction Period (s) | NE 11 | NE 11 | E 11 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | — | E 12 | — | ENE 7 | ENE 7 | ESE 10 | ESE 10 | NE 11 | — | — | — | — | — |
| kJ | 5 | 5 | 2 | 38 | 37 | 37 | 36 | 25 | 25 | 25 | 24 | — | 3 | — | 5 | 5 | 107 | 54 | 5 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | S 5 | S 5 | S 4 | S 4 | S 4 | S 5 | S 5 | S 5 | S 5 | S 5 | S 5 | S 5 | S 5 | S 5 | NNE 5 | ENE 6 | — | NE 6 | NE 7 | NE 7 | ENE 7 | NE 7 | ENE 8 |
| kJ | 21 | 51 | 41 | 25 | 19 | 19 | 27 | 24 | 25 | 50 | 62 | 42 | 25 | 17 | 31 | 32 | 119 | — | 196 | 321 | 407 | 428 | 503 | 746 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 159 | 206 | 640 | 307 | 56 | 159 | 159 | 159 | 55 | 207 | 37 | 613 | 159 | 0 | 0 | 52 | 71 | 83 | 71 | 57 | 71 | 117 | 350 | 266 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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