Surf Forecasts:
How big are the waves at Uchiboso today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 8ft (2.5m), 12s period with SE swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 7.5ft (2.3m), 11s period with SSE swell.
- Evening surf: Evening surf (20 Sep, local time) - 8ft (2.5m), 12s period with SSE swell.
The current surf forecast for Uchiboso at 11AM is: 2.4m 12s primary swell from a South-southeast direction and 0.1m 14s secondary swell from a East direction (forecast issued at 02:00am September 20). An open ocean swell of 0.6m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 8ft (2.5m) | 12s |
| Afternoon (20 Sep) | 7.5ft (2.3m) | 11s |
| Evening (20 Sep) | 8ft (2.5m) | 12s |
Table - waves today at Uchiboso. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 196mm), heaviest during Mon night. Warm (max 27°C on Mon morning, min 22°C on Sun morning). Winds increasing (light winds from the ESE on Mon morning, stormy winds from the NNW by Mon night). | ||||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 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 13 | SE 12 | SSE 12 | SE 12 | SSE 12 | SSE 11 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | S 12 | S 12 | SSE 12 | SSE 12 | SSE 14 | SSE 14 | S 14 | SSE 12 | S 10 | S 10 | S 9 | S 9 | S 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 2046 | 1920 | 1780 | 1769 | 1570 | 1362 | 1660 | 1928 | 2055 | 2313 | 2899 | 3230 | 3648 | 6600 | 8603 | 19929 | 37606 | 13672 | 2348 | 1000 | 761 | 664 | 445 | 273 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | cross-off | off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-on | cross-on | cross | cross | off | off |
High Tide | 2:45PM1.37m | 9:26PM1.32m | 3:00PM1.45m | 00:39AM1.32m | 3:20PM1.51m | |||||||||||||||||||
Low Tide | 5:08AM0.58m | 7:19PM1.31m | 6:53AM0.55m | 8:27PM1.18m | 8:02AM0.49m | 8:56PM1.03m | ||||||||||||||||||
 |  |  |  |  | | | | | | | |  | |  | |  | | |  |  |  |  | | |
 | — | 5:26 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:40 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:38 | — | — |
mm | — | 4 | 9 | 2 | 17 | 7 | 3 | 1 | 2 | 4 | 4 | 6 | 9 | 8 | 19 | 23 | 22 | 64 | 4 | 1 | — | — | — | — |
Temp °C | 22 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 25 | 27 | 27 | 26 | 27 | 26 | 25 | 26 | 26 | 26 | 27 | 27 | 26 |
Feels °C | 22 | 22 | 22 | 19 | 20 | 20 | 20 | 19 | 21 | 22 | 23 | 27 | 31 | 29 | 25 | 23 | 19 | 12 | 26 | 27 | 28 | 29 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SE 13 | SE 12 | SSE 12 | SE 12 | SSE 12 | SSE 11 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | S 12 | S 12 | S 12 | S 13 | S 14 | S 15 | S 14 | SSE 12 | S 10 | S 10 | S 9 | S 9 | S 8 |
| kJ | 2046 | 1920 | 1780 | 1769 | 1570 | 1362 | 1660 | 1928 | 2055 | 2313 | 2899 | 3230 | 3648 | 4501 | 5603 | 10985 | 26202 | 13672 | 2348 | 1000 | 761 | 664 | 445 | 273 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | E 15 | — | — | E 14 | S 15 | E 13 | E 13 | E 12 | E 12 | E 12 | E 11 | E 11 | — | — | — | — | — | NNW 6 | SW 10 | SW 9 | ENE 10 | WSW 8 | E 10 |
| kJ | 90 | 4 | — | — | 4 | 153 | 29 | 51 | 72 | 69 | 93 | 9 | 9 | — | — | — | — | — | 47 | 363 | 272 | 9 | 123 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | E 13 | — | NNW 6 | — | — | — | — | — | — | — | — | — | — | — | NNW 5 | E 13 | E 13 | ENE 10 | ENE 10 |
| kJ | — | — | — | — | — | 30 | — | 3 | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 9 | 19 |
Wind waves Height (m) Direction Period (s) | — | — | NE 5 | NE 5 | NNE 3 | NNE 3 | N 3 | NNE 3 | NNE 3 | NNE 4 | — | — | — | SSE 12 | SSE 12 | SSE 14 | SSE 14 | NNW 7 | WSW 9 | SW 9 | SW 9 | SW 8 | — | NE 2 |
| kJ | — | — | 68 | 140 | 7 | 6 | 8 | 7 | 9 | 8 | — | — | — | 6600 | 8603 | 19929 | 37606 | 653 | 212 | 885 | 594 | 322 | — | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 503 | 566 | 566 | 566 | 566 | 566 | 580 | 14 | 14 | 0 | 0 | 524 | 523 | 503 | 501 | 501 | 23 | 47 | 53 | 27 | 0 | 0 |
Best forecast wave conditions in Chiba | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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