Surf Forecasts:
How big are the waves at Uchiumi today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 6ft (1.9m), 8s period with E swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 8ft (2.5m), 9s period with E swell.
- Evening surf: Evening surf (18 Sep, local time) - 10ft (3.0m), 10s period with E swell.
The current surf forecast for Uchiumi at 1AM is: 1.7m 7s primary swell from a East direction and 1.4m 7s secondary swell from a East direction, 0.5m 12s secondary swell from a East direction (forecast issued at 08:00pm September 17). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 6ft (1.9m) | 8s |
| Afternoon (18 Sep) | 8ft (2.5m) | 9s |
| Evening (18 Sep) | 10ft (3.0m) | 10s |
Table - waves today at Uchiumi. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 56mm), heaviest during Fri night. Warm (max 28°C on Sun afternoon, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | ||||||||||||||||
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) | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 12 | ESE 15 | ESE 14 |
Wave Graph  | ||||||||||||||||||
 kJ | 216 | 255 | 247 | 216 | 261 | 421 | 655 | 1113 | 1279 | 1493 | 1523 | 1403 | 1303 | 1375 | 1275 | 2184 | 5106 | 4563 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:48PM1.96m | 10:56AM1.65m | 9:22PM1.85m | 1:02PM1.59m | ||||||||||||||
Low Tide | 3:56AM0.54m | 3:38PM1.34m | 5:05AM0.65m | 4:58PM1.49m | ||||||||||||||
 |  | | | | | | | |  | | |  | |  | | |  | |
 | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | 6:17 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:15 | — |
mm | 3 | 4 | 4 | 5 | 5 | 4 | 4 | 4 | 3 | 6 | 7 | 5 | 4 | 1 | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 |
Feels °C | 25 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 27 | 27 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | E 12 | E 7 | E 7 | E 12 | E 12 | E 12 | S 10 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 12 | ESE 15 | ESE 14 |
| kJ | 47 | 229 | 199 | 44 | 45 | 26 | 2 | 736 | 861 | 1021 | 1043 | 1063 | 976 | 1087 | 1146 | 2184 | 5106 | 4563 |
Swell 2 Height (m) Direction Period (s) | E 16 | E 12 | E 12 | SE 9 | E 15 | S 10 | SE 8 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | ESE 20 | ESE 13 | ESE 16 | S 8 | S 9 |
| kJ | 5 | 46 | 69 | 3 | 4 | 2 | 3 | 7 | 7 | 6 | 6 | 6 | 6 | 75 | 424 | 1271 | 12 | 13 |
Swell 3 Height (m) Direction Period (s) | E 16 | E 16 | — | S 11 | S 10 | S 10 | — | — | — | — | — | — | E 21 | S 8 | ESE 18 | S 8 | — | — |
| kJ | 5 | 5 | — | 2 | 2 | 2 | — | — | — | — | — | — | 9 | 6 | 329 | 5 | — | — |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | — | — | — |
| kJ | 216 | 255 | 247 | 216 | 261 | 421 | 655 | 1113 | 1279 | 1493 | 1523 | 1403 | 1303 | 1375 | 1275 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 46 | 46 | 43 | 46 | 46 | 236 | 299 | 299 | 121 | 121 | 121 | 43 | 43 | 43 | 46 | 46 | 46 | 15 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
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