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Surf Forecasts:
Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 8 pm Saturday 30 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
19.4° C
(Which is 1.9°C colder than average for this time of year)How big are the waves at Choshi today (31 May):
- Morning surf: Morning surf (31 May, local time) - 3ft (0.9m), 10s period with ESE swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 2.5ft (0.7m), 10s period with E swell.
- Evening surf: Evening surf (31 May, local time) - 2.5ft (0.7m), 10s period with E swell.
The current surf forecast for Choshi at 4AM is: 0.9m 10s primary swell from a East-southeast direction and 0.6m 6s secondary swell from a South-southeast direction (forecast issued at 08:00pm May 30). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 3ft (0.9m) | 10s |
| Afternoon (31 May) | 2.5ft (0.7m) | 10s |
| Evening (31 May) | 2.5ft (0.7m) | 10s |
Table - waves today at Choshi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Sun afternoon, min 20°C on Mon night). Winds increasing (light winds from the SE on Mon morning, fresh winds from the SSW by Mon night). | ||||||||||||||||||||||||
Sat 30 | Sunday 31 | Monday 1 | Tuesday 2 | |||||||||||||||||||||
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 | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
E 11 | E 10 | E 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | ESE 10 | E 10 | E 10 | SSW 6 | SSW 6 | E 10 | E 10 | S 16 | E 10 | E 10 | E 10 | S 13 | S 13 | S 12 | S 12 | S 15 | |
143 | 141 | 104 | 149 | 149 | 149 | 100 | 100 | 106 | 98 | 98 | 77 | 93 | 68 | 68 | 406 | 65 | 68 | 66 | 87 | 85 | 76 | 138 | 272 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross | cross | cross-off | on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | |
High Tide | 4:38PM1.12m | 2:44AM1.28m | 5:15PM1.14m | 3:16AM1.29m | 5:52PM1.15m | 3:49AM1.29m | ||||||||||||||||||
Low Tide | 9:22PM0.79m | 10:04AM-0.01m | 10:00PM0.81m | 10:38AM-0.02m | 10:36PM0.82m | 11:11AM-0.01m | ||||||||||||||||||
 |  |  | |  | | | |  |  | | | | | | | | | | | | | | | |
 | — | — | — | 4:22 | — | — | — | — | — | — | — | 4:22 | — | — | — | — | — | — | — | 4:22 | — | — | — | — |
 | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | 6:46 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 22 | 21 | 21 | 22 | 23 | 23 | 24 | 23 | 22 | 22 | 21 | 21 | 24 | 24 | 23 | 22 | 21 | 21 | 20 | 21 | 21 | 22 | 22 |
20 | 23 | 22 | 22 | 23 | 23 | 22 | 23 | 23 | 23 | 22 | 21 | 21 | 24 | 23 | 21 | 19 | 19 | 18 | 19 | 19 | 18 | 19 | 19 | |
Swell 1 Height (m) Direction Period (s) | E 11 | E 10 | E 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | ESE 10 | E 10 | E 10 | S 6 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 |
 kJ | 143 | 141 | 104 | 149 | 149 | 149 | 100 | 100 | 106 | 98 | 98 | 31 | 69 | 68 | 68 | 65 | 65 | 68 | 66 | 45 | 44 | 46 | 46 | 44 |
Swell 2 Height (m) Direction Period (s) | NE 11 | SSW 7 | SSE 6 | SSE 6 | S 16 | S 16 | SE 6 | SE 6 | SSE 12 | SSE 12 | SSE 12 | E 10 | S 6 | S 6 | SSE 11 | ESE 12 | ESE 11 | SSE 10 | S 14 | S 13 | S 13 | S 12 | S 16 | SE 12 |
| kJ | 4 | 5 | 25 | 29 | 5 | 5 | 8 | 8 | 50 | 49 | 78 | 69 | 24 | 16 | 39 | 13 | 12 | 35 | 57 | 87 | 85 | 76 | 43 | 5 |
Swell 3 Height (m) Direction Period (s) | N 7 | ENE 11 | ENE 11 | ENE 11 | S 12 | S 16 | S 16 | SSE 14 | SE 12 | ESE 12 | SE 12 | S 11 | S 11 | SSE 11 | S 16 | S 16 | SE 11 | S 14 | SSE 10 | ESE 11 | S 16 | S 17 | SE 11 | — |
| kJ | 1 | 11 | 12 | 12 | 3 | 19 | 19 | 40 | 6 | 15 | 22 | 64 | 63 | 40 | 46 | 76 | 45 | 37 | 20 | 12 | 21 | 22 | 5 | — |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 6 | — | — | — | — | — | — | SSE 2 | SSE 3 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | S 5 | S 16 | S 4 | S 5 | S 4 | S 4 | S 4 | S 3 | S 12 | S 15 |
| kJ | 30 | 33 | — | — | — | — | — | — | 1 | 3 | 22 | 77 | 93 | 55 | 14 | 406 | 40 | 27 | 16 | 8 | 7 | 6 | 138 | 272 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 56 | 52 | 52 | 55 | 52 | 56 | 56 | 56 | 55 | 52 | 52 | 52 | 0 | 55 | 56 | 56 | 207 | 147 | 147 | 135 | 159 | 56 | 266 | 56 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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