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Surf Forecasts:
Ohara surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Wednesday 20 May 2026 JSTForecast update in hr min s Forecast update imminent
Ohara surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ohara sea temperature is
21.2° C
(Which is normal for this time of year)How big are the waves at Ohara today?
The current surf forecast for Ohara at 7PM is: 0.9m 9s primary swell from a Southeast direction and 0.2m 8s secondary swell from a East-northeast direction (forecast issued at 02:00pm May 20). An open ocean swell of 0.7m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | - | - |
| Afternoon (20 May) | 3ft (0.9m) | 10s |
| Evening (20 May) | 3.5ft (1.0m) | 9s |
Table - waves today at Ohara. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 18mm), heaviest on Thu night. Warm (max 24°C on Thu morning, min 15°C on Fri afternoon). Winds increasing (light winds from the WNW on Thu afternoon, strong winds from the NNE by Fri afternoon). | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | S 7 | SSW 7 | SSW 7 | SW 8 | SSW 8 | SSW 8 | SSW 8 | NE 7 | NE 7 | NE 7 | NE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | |
139 | 134 | 128 | 170 | 166 | 125 | 88 | 148 | 293 | 390 | 849 | 344 | 302 | 202 | 176 | 241 | 423 | 939 | 1146 | 1069 | 1107 | 990 | 890 | 844 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 8:21PM1.27m | 5:48AM1.44m | 9:22PM1.22m | 6:38AM1.33m | 10:21PM1.19m | 7:45AM1.19m | ||||||||||||||||||
Low Tide | 12:47PM-0.01m | 00:32AM1.07m | 1:38PM0.11m | 1:32AM1.06m | 2:32PM0.25m | 3:00AM1.02m | ||||||||||||||||||
 |  |  |  |  |  | | |  |  | | | |  | | | | | | | | | | | |
 | — | — | — | — | — | 4:30 | — | — | — | — | — | — | — | 4:30 | — | — | — | — | — | — | — | 4:28 | — | — |
 | — | — | 6:37 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | 6:40 |
— | — | — | — | 1 | — | — | — | 1 | 1 | 2 | 2 | 1 | 6 | 1 | 1 | — | 1 | 1 | — | — | — | — | — | |
Temp °C | 23 | 23 | 22 | 21 | 21 | 22 | 23 | 23 | 24 | 22 | 20 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 15 | 15 | 16 | 16 | 16 | 16 |
21 | 21 | 23 | 22 | 21 | 22 | 22 | 21 | 21 | 20 | 20 | 13 | 12 | 13 | 12 | 11 | 9 | 8 | 7 | 8 | 10 | 10 | 10 | 11 | |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 10 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 |
 kJ | 139 | 134 | 128 | 170 | 166 | 125 | 88 | 86 | 90 | 61 | 395 | 344 | 302 | 202 | 138 | 111 | 90 | 55 | 39 | 37 | 24 | 15 | 15 | 15 |
Swell 2 Height (m) Direction Period (s) | NE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | NE 7 | ESE 10 | ESE 10 | ESE 9 | SE 9 | SE 9 | SE 10 | SE 9 | SW 8 | — | S 9 | S 9 | SW 8 | SW 8 | SW 8 |
| kJ | 19 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 2 | 81 | 60 | 59 | 43 | 43 | 45 | 41 | 55 | — | 6 | 7 | 11 | 11 | 10 |
Swell 3 Height (m) Direction Period (s) | NE 9 | — | NE 8 | NE 8 | S 8 | — | E 12 | NE 12 | E 11 | E 11 | NE 6 | NE 11 | E 11 | NE 10 | — | ESE 10 | ESE 10 | — | — | — | S 9 | — | — | — |
| kJ | 26 | — | 18 | 17 | 1 | — | 3 | 6 | 3 | 2 | 8 | 5 | 2 | 4 | — | 54 | 55 | — | — | — | 6 | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 5 | SSW 5 | SW 4 | S 4 | S 5 | S 6 | S 7 | SSW 7 | SSW 7 | SW 8 | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | NE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 39 | 39 | 22 | 9 | 14 | 17 | 78 | 148 | 293 | 390 | 849 | 15 | 86 | 145 | 176 | 241 | 423 | 939 | 1146 | 1069 | 1107 | 990 | 890 | 844 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 563 | 563 | 114 | 114 | 15 | 114 | 62 | 92 | 9 | 9 | 6 | 24 | 58 | 206 | 301 | 213 | 213 | 213 | 213 | 213 | 213 | 645 | 869 | 869 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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