Surf Forecasts:
How big are the waves at Nettley Bay Reefs today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 10ft (3.0m), 15s period with WSW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 7ft (2.1m), 14s period with WSW swell.
- Evening surf: Evening surf (21 Aug, local time) - 13ft (4.0m), 16s period with WSW swell.
The current surf forecast for Nettley Bay Reefs at 1AM is: 1.4m 16s primary swell from a Southwest direction and 1.0m 12s secondary swell from a West-southwest direction, 1.8m 11s secondary swell from a West-northwest direction (forecast issued at 09:00pm August 20). The wind direction is predicted to be onshore.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 10ft (3.0m) | 15s |
| Afternoon (21 Aug) | 7ft (2.1m) | 14s |
| Evening (21 Aug) | 13ft (4.0m) | 16s |
Table - waves today at Nettley Bay Reefs. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Fri night. Very mild (max 12°C on Thu night, min 10°C on Sat morning). Winds increasing (light winds from the NW on Thu night, strong winds from the W by Fri night). | ||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | ||||||||||||||||
7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||
Wave Height (m) Direction Period (s) | WSW 13 | WNW 11 | SW 16 | SW 16 | W 15 | WSW 15 | WSW 14 | WSW 14 | W 13 | WSW 16 | WSW 16 | WSW 15 | WSW 12 | WSW 14 | WSW 14 | WSW 14 | SW 14 | SW 14 |
Wave Graph  | ||||||||||||||||||
 kJ | 633 | 808 | 917 | 1467 | 3176 | 3474 | 1604 | 1700 | 3638 | 9273 | 10891 | 13522 | 8905 | 12029 | 11466 | 11135 | 9884 | 8809 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on |
High Tide | 5:18AM0.34m | 2:23PM0.33m | 6:40AM0.32m | 1:41PM0.34m | ||||||||||||||
Low Tide | 9:48PM0.05m | 9:58AM0.28m | 10:08PM0.06m | 9:21AM0.31m | ||||||||||||||
 | |  | | |  |  | |  | |  | | |  | |  | | | |
 | — | — | — | — | 7:03 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:46 | — | — |
mm | — | — | 1 | — | — | — | 1 | 1 | 1 | 1 | — | 2 | 1 | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 11 | 11 | 11 | 11 |
Feels °C | 9 | 9 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 3 | 3 | 2 | 2 | 1 | 3 | 3 | 4 | 5 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 11 | SW 16 | SW 16 | SW 20 | WSW 19 | WSW 14 | WSW 14 | WSW 18 | — | — | — | WSW 24 | SW 24 | SW 21 | SW 21 | SW 21 | SW 14 |
| kJ | 592 | 808 | 917 | 1467 | 388 | 480 | 1604 | 1700 | 1663 | — | — | — | 55 | 87 | 72 | 368 | 224 | 8809 |
Swell 2 Height (m) Direction Period (s) | WSW 13 | SW 16 | WSW 12 | WSW 20 | — | — | SW 18 | SW 18 | — | — | — | — | — | — | — | SW 21 | SW 21 | SW 20 |
| kJ | 633 | 644 | 323 | 307 | — | — | 752 | 735 | — | — | — | — | — | — | — | 467 | 224 | 384 |
Swell 3 Height (m) Direction Period (s) | SW 16 | WSW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 322 | 298 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | WNW 11 | W 11 | W 15 | WSW 15 | W 8 | W 8 | W 13 | WSW 16 | WSW 16 | WSW 15 | WSW 12 | WSW 14 | WSW 14 | WSW 14 | SW 14 | — |
| kJ | — | — | 692 | 988 | 3176 | 3474 | 596 | 870 | 3638 | 9273 | 10891 | 13522 | 8905 | 12029 | 11466 | 11135 | 9884 | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 251 | 148 | 120 | 259 | 68 | 253 | 253 | 253 | 259 | 259 | 269 | 270 | 281 | 281 | 281 | 253 | 253 | 253 |
Best forecast wave conditions in West Coast of Tasmania | ||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||
Header Global | ||||||||||||||||||
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