Surf Forecasts:
How big are the waves at Ruby Bay today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 0.5ft (0.1m), 16s period with N swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 0.5ft (0.1m), 16s period with N swell.
- Evening surf: Evening surf (21 Aug, local time) - 0.5ft (0.1m), 15s period with N swell.
The current surf forecast for Ruby Bay at 9AM is: 0.1m 16s primary swell from a North direction (forecast issued at 05:00am August 21). The wind direction is predicted to be offshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 0.5ft (0.1m) | 16s |
| Afternoon (21 Aug) | 0.5ft (0.1m) | 16s |
| Evening (21 Aug) | 0.5ft (0.1m) | 15s |
Table - waves today at Ruby Bay. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Sat night. Very mild (max 14°C on Sat morning, min 5°C on Fri night). Wind will be generally light. | |||||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||||||||
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) | N 15 | N 16 | N 16 | N 16 | N 16 | N 15 | N 15 | N 15 | N 6 | N 6 | N 6 | NW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 7 | NNW 8 | NNW 8 | N 9 | N 9 | N 18 | N 18 | NNW 9 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 4 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 1 | 1 | 1 | 37 | 17 | 52 | 89 | 0 | 0 | 0 | 404 | 0 | 6 | 7 | 0 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | glassy | on | glassy | off | off | off | off | off | glassy | glassy | cross | glassy | cross | cross | cross-off | off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:25AM3.25m | 3:40PM3.24m | 4:28AM3.05m | 4:51PM3.08m | 5:47AM2.97m | 6:38PM3.06m | |||||||||||||||||
Low Tide | 9:18AM1.61m | 9:59PM1.84m | 10:19AM1.77m | 11:37PM1.89m | 11:37AM1.83m | ||||||||||||||||||
 | |  | | | | | | | | |  | |  | |  | |  |  | | | | | |
 | — | 7:09 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — |
 | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:53 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 5 | 2 | 1 | — | — | — | — |
Temp °C | 5 | 4 | 6 | 12 | 13 | 9 | 6 | 5 | 5 | 5 | 9 | 14 | 14 | 12 | 11 | 11 | 12 | 13 | 12 | 12 | 12 | 10 | 10 |
Feels °C | 2 | 1 | 3 | 11 | 11 | 8 | 3 | 2 | 2 | 1 | 6 | 12 | 12 | 10 | 10 | 9 | 11 | 10 | 8 | 7 | 7 | 5 | 5 |
Swell 1 Height (m) Direction Period (s) | NW 4 | — | — | — | N 16 | NW 5 | NNW 4 | NNW 4 | NNW 4 | NNW 4 | NNW 4 | NNW 4 | N 6 | — | — | — | — | — | N 9 | N 9 | N 9 | N 9 | NNW 9 |
| kJ | 1 | — | — | — | 5 | 7 | 4 | 4 | 3 | 7 | 7 | 7 | 3 | — | — | — | — | — | 404 | 325 | 240 | 169 | 126 |
Swell 2 Height (m) Direction Period (s) | N 15 | N 16 | N 16 | — | — | N 15 | N 15 | N 15 | — | N 6 | N 6 | N 6 | — | — | — | — | — | — | N 17 | NW 18 | N 18 | N 18 | — |
| kJ | 4 | 5 | 5 | — | — | 5 | 4 | 4 | — | 1 | 1 | 1 | — | — | — | — | — | — | 6 | 12 | 6 | 7 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | N 16 | — | — | — | — | N 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 5 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 7 | NNW 8 | NNW 8 | NNW 9 | — | — | WNW 3 | W 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 37 | 17 | 52 | 89 | 276 | 416 | 509 | 1014 | — | — | 2 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 115 | 83 | 14 | 129 | 132 | 129 | 0 | 125 | 116 | 132 | 115 |
Best forecast wave conditions in Nelson - Tasman Bay | |||||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||||
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