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Surf Forecasts:
Choshi surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Sunday 31 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
20.5° C
(Which is slightly cooler than normal)How big are the waves at Choshi today (31 May):
- 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 6PM is: 0.7m 10s primary swell from a East direction and 0.4m 12s secondary swell from a South-southeast direction, 0.4m 3s secondary swell from a South-southeast direction (forecast issued at 02:00pm May 31). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | - | - |
| 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 ForecastModerate rain (total 18mm), heaviest on Wed morning. Warm (max 23°C on Sun afternoon, min 18°C on Wed morning). Winds increasing (light winds from the SW on Sun night, strong winds from the SE by Wed morning). | ||||||||||||||||||||||||
Sun 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | S 11 | E 10 | S 5 | E 10 | SSE 14 | S 13 | S 13 | E 10 | S 15 | S 11 | S 5 | SSE 13 | SSE 5 | SSE 5 | SE 6 | SE 7 | |
102 | 100 | 100 | 98 | 78 | 69 | 69 | 68 | 231 | 66 | 62 | 47 | 61 | 89 | 86 | 52 | 272 | 63 | 43 | 286 | 53 | 72 | 145 | 289 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | |
High Tide | 5:15PM1.14m | 3:16AM1.29m | 5:52PM1.15m | 3:49AM1.29m | 6:28PM1.15m | 4:22AM1.29m | ||||||||||||||||||
Low Tide | 10:04AM-0.01m | 10:00PM0.81m | 10:38AM-0.02m | 10:36PM0.82m | 11:11AM-0.01m | 11:11PM0.84m | ||||||||||||||||||
 |  | |  | | |  | | | | |  |  | | | | | | | | |  |  | | |
 | — | — | — | — | — | 4:22 | — | — | — | — | — | — | — | 4:22 | — | — | — | — | — | — | — | 4:20 | — | — |
 | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | 6:47 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 4 | |
Temp °C | 23 | 23 | 22 | 22 | 20 | 19 | 19 | 21 | 23 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 19 | 18 |
22 | 22 | 21 | 21 | 18 | 18 | 18 | 20 | 21 | 19 | 17 | 19 | 19 | 20 | 20 | 19 | 18 | 19 | 20 | 19 | 19 | 19 | 15 | 12 | |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | SSW 15 |
 kJ | 102 | 100 | 100 | 98 | 71 | 69 | 69 | 68 | 68 | 66 | 46 | 47 | 47 | 46 | 44 | 46 | 46 | 45 | 42 | 44 | 43 | 43 | 58 | 167 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SSE 14 | SSE 12 | SSE 12 | SSE 12 | S 11 | S 11 | SSE 11 | ESE 12 | ESE 12 | ESE 12 | SSE 10 | SSE 14 | S 13 | S 13 | SSE 12 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | E 9 | SSW 12 | E 15 |
| kJ | 8 | 40 | 50 | 49 | 78 | 64 | 63 | 40 | 14 | 13 | 13 | 35 | 61 | 89 | 86 | 52 | 5 | 5 | 5 | 5 | 5 | 58 | 79 | 4 |
Swell 3 Height (m) Direction Period (s) | S 16 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | S 18 | ESE 12 | S 16 | SE 11 | SE 11 | S 14 | SSE 10 | S 17 | S 16 | S 16 | — | S 11 | SE 11 | SSW 11 | SE 11 | SE 11 | SSW 15 | — |
| kJ | 19 | 6 | 6 | 23 | 22 | 23 | 6 | 14 | 78 | 33 | 45 | 37 | 34 | 24 | 48 | 43 | — | 63 | 19 | 64 | 20 | 20 | 79 | — |
Wind waves Height (m) Direction Period (s) | — | SSE 6 | SSE 3 | S 4 | S 5 | S 6 | S 6 | S 5 | S 11 | S 5 | S 5 | S 5 | S 4 | S 4 | S 4 | S 4 | S 15 | S 4 | S 5 | SSE 13 | SSE 5 | SSE 5 | SE 6 | SE 7 |
| kJ | — | 12 | 3 | 9 | 43 | 50 | 30 | 29 | 231 | 53 | 62 | 27 | 12 | 10 | 8 | 7 | 272 | 42 | 43 | 286 | 53 | 72 | 145 | 289 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 56 | 56 | 52 | 640 | 147 | 52 | 52 | 52 | 56 | 613 | 207 | 56 | 159 | 56 | 52 | 56 | 56 | 56 | 56 | 56 | 56 | 55 | 916 | 916 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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