Surf Forecasts:
How big are the waves at Matsube Bay today (20 Jun):
- Morning surf: Morning surf (20 Jun, local time) - 2.5ft (0.8m), 9s period with ENE swell.
- Afternoon surf: Afternoon surf (20 Jun, local time) - 2.5ft (0.8m), 8s period with ENE swell.
- Evening surf: Evening surf (20 Jun, local time) - 3ft (0.9m), 9s period with ENE swell.
The current surf forecast for Matsube Bay at 8AM is: 0.7m 9s primary swell from a East-northeast direction and 0.4m 10s secondary swell from a Southeast direction, 0.6m 4s secondary swell from a Southeast direction (forecast issued at 02:00am June 20). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jun) | 2.5ft (0.8m) | 9s |
| Afternoon (20 Jun) | 2.5ft (0.8m) | 8s |
| Evening (20 Jun) | 3ft (0.9m) | 9s |
Table - waves today at Matsube Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 35mm), heaviest during Sat night. Warm (max 25°C on Sun afternoon, min 20°C on Sat night). Winds decreasing (fresh winds from the SSE on Sat night, calm by Mon morning). | ||||||||||||||||||||||||
Saturday 20 | Sunday 21 | Monday 22 | ||||||||||||||||||||||
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 | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SE 10 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 9 | ENE 10 | SSE 6 | SSE 7 | SSE 7 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | ENE 10 | ENE 10 | ENE 10 | SW 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 36 | 55 | 58 | 86 | 84 | 82 | 92 | 130 | 142 | 249 | 363 | 175 | 194 | 283 | 337 | 328 | 262 | 238 | 273 | 222 | 186 | 186 | 183 | 246 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | glassy | cross-on | cross-on | on | cross-on |
High Tide | 7:04AM1.31m | 9:18PM1.26m | 8:09AM1.17m | 9:51PM1.26m | 9:32AM1.05m | |||||||||||||||||||
Low Tide | 1:47AM0.91m | 2:13PM0.30m | 2:53AM0.84m | 2:54PM0.47m | 4:07AM0.74m | 3:34PM0.64m | ||||||||||||||||||
 | |  | | | | |  | | |  |  | |  |  |  | | |  | | | | |  | |
 | — | 4:24 | — | — | — | — | — | — | — | 4:24 | — | — | — | — | — | — | — | 4:24 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:55 | — |
mm | — | — | 1 | 1 | 2 | 3 | 4 | 5 | 4 | 3 | 6 | 5 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 23 | 23 | 22 | 22 | 21 | 21 | 20 | 21 | 21 | 22 | 23 | 23 | 25 | 25 | 23 | 22 | 20 | 21 | 22 | 23 | 24 | 23 | 23 |
Feels °C | 24 | 25 | 24 | 22 | 22 | 22 | 22 | 19 | 19 | 18 | 20 | 22 | 23 | 25 | 24 | 25 | 23 | 21 | 22 | 24 | 24 | 25 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | E 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | SSE 7 | SE 7 | ENE 9 | ENE 9 | ENE 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 |
| kJ | 36 | 55 | 58 | 86 | 84 | 82 | 92 | 130 | 142 | 148 | 148 | 175 | 73 | 98 | 100 | 70 | 262 | 238 | 273 | 222 | 171 | 176 | 164 | 246 |
Swell 2 Height (m) Direction Period (s) | SSE 5 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SW 7 | E 18 | SE 11 | ENE 10 | ENE 10 | SE 6 | SE 6 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
| kJ | 9 | 24 | 24 | 34 | 34 | 33 | 33 | 31 | 7 | 6 | 32 | 135 | 103 | 32 | 16 | 70 | 132 | 163 | 201 | 183 | 186 | 186 | 183 | 179 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SSE 5 | SSE 5 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | E 18 | E 18 | SE 9 | SE 11 | SE 9 | SE 9 | ENE 12 | SE 9 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 |
| kJ | 25 | 9 | 5 | 12 | 12 | 7 | 7 | 7 | 6 | 6 | 3 | 20 | 13 | 22 | 48 | 43 | 48 | 35 | 35 | 35 | 35 | 35 | 35 | 26 |
Wind waves Height (m) Direction Period (s) | — | — | SE 3 | SE 4 | SE 4 | SE 4 | SE 4 | SE 4 | SE 5 | SSE 6 | SSE 7 | SW 6 | SW 7 | SW 8 | SW 8 | SW 8 | WSW 8 | — | — | — | — | — | — | — |
| kJ | — | — | 5 | 12 | 21 | 18 | 20 | 20 | 99 | 249 | 363 | 170 | 194 | 283 | 337 | 328 | 714 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 15 | 15 | 202 | 202 | 196 | 15 | 15 | 234 | 553 | 196 | 84 | 58 | 23 | 23 | 22 | 0 | 0 | 0 | 0 | 0 | 15 | 15 | 89 | 47 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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