
Surf Forecasts:
How big are the waves at Ruby Bay today (12 Aug):
- Morning surf: Morning surf (12 Aug, local time) - 1.5ft (0.4m), 5s period with NE swell.
- Afternoon surf: Afternoon surf (12 Aug, local time) - 1.5ft (0.4m), 6s period with N swell.
- Evening surf: Evening surf (12 Aug, local time) - 2.5ft (0.8m), 7s period with N swell.
The current surf forecast for Ruby Bay at 9AM is: 0.4m 5s primary swell from a Northeast direction and 0.1m 7s secondary swell from a North direction, 0.1m 10s secondary swell from a North direction (forecast issued at 05:00am August 12). The wind direction is predicted to be glassy.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Aug) | 1.5ft (0.4m) | 5s |
| Afternoon (12 Aug) | 1.5ft (0.4m) | 6s |
| Evening (12 Aug) | 2.5ft (0.8m) | 7s |
Table - waves today at Ruby Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 9mm), mostly falling on Thu morning. Very mild (max 16°C on Fri afternoon, min 8°C on Fri night). Wind will be generally light. | |||||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||||||||
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 7 | N 10 | NE 5 | NE 4 | N 6 | N 7 | N 7 | N 7 | N 8 | N 8 | N 8 | N 7 | N 7 | N 7 | N 6 | N 6 | N 6 | N 5 | N 5 | N 5 | N 4 | NW 19 | NW 19 |
Wave Graph | |||||||||||||||||||||||
4 | 2 | 6 | 7 | 10 | 43 | 65 | 69 | 97 | 119 | 159 | 146 | 92 | 70 | 38 | 26 | 15 | 9 | 4 | 4 | 2 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | glassy | glassy | on | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | off | off | off | glassy | cross-on | glassy | glassy |
High Tide | 9:29AM3.89m | 10:04PM4.25m | 10:20AM4.07m | 10:44PM4.38m | 11:05AM4.18m | ||||||||||||||||||
Low Tide | 3:06AM0.82m | 3:34PM0.87m | 3:54AM0.61m | 4:21PM0.69m | 4:37AM0.49m | 5:01PM0.60m | |||||||||||||||||
— | 7:22 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | |
— | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:44 | — | — | — | — | — | — | — | 5:45 | — | — | |
mm | — | — | — | — | — | — | — | 1 | 1 | 2 | 3 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 8 | 8 | 9 | 11 | 12 | 10 | 10 | 10 | 9 | 10 | 10 | 11 | 13 | 12 | 12 | 11 | 10 | 9 | 11 | 15 | 16 | 12 | 10 |
Feels °C | 6 | 6 | 8 | 9 | 10 | 9 | 9 | 9 | 8 | 10 | 10 | 11 | 13 | 12 | 12 | 10 | 9 | 7 | 10 | 15 | 15 | 12 | 9 |
Swell 1 Height (m) Direction Period (s) | N 7 | ENE 5 | N 7 | N 7 | N 6 | N 7 | N 7 | N 7 | N 8 | N 8 | NW 11 | NW 13 | NNW 12 | N 7 | N 6 | N 6 | N 6 | N 5 | N 5 | N 5 | N 4 | NNW 8 | NNW 8 |
4 | 2 | 1 | 1 | 10 | 43 | 65 | 69 | 97 | 119 | 31 | 42 | 28 | 70 | 38 | 26 | 15 | 9 | 4 | 4 | 2 | 6 | 6 | |
Swell 2 Height (m) Direction Period (s) | N 10 | N 7 | N 10 | N 9 | N 13 | NNW 12 | NNW 12 | NNW 11 | — | NW 18 | NW 18 | NW 10 | — | NNW 11 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | NW 9 | NW 9 | NNW 8 | — | NW 19 |
2 | 1 | 2 | 2 | 3 | 14 | 13 | 11 | — | 13 | 12 | 16 | — | 25 | 12 | 11 | 10 | 9 | 3 | 3 | 7 | — | 14 | |
Swell 3 Height (m) Direction Period (s) | — | N 10 | N 16 | N 13 | NW 16 | — | ENE 4 | NW 19 | NW 18 | N 15 | N 15 | — | NW 19 | NW 19 | NW 18 | NW 18 | N 16 | NW 16 | NW 16 | NW 18 | NW 18 | NW 19 | — |
— | 2 | 5 | 4 | 10 | — | 1 | 15 | 13 | 4 | 4 | — | 14 | 14 | 12 | 12 | 5 | 10 | 11 | 13 | 13 | 14 | — | |
Wind waves Height (m) Direction Period (s) | — | — | NE 5 | NE 4 | NE 4 | ENE 4 | — | — | — | — | N 8 | N 7 | N 7 | — | — | — | — | — | — | — | — | — | — |
— | — | 6 | 7 | 4 | 2 | — | — | — | — | 159 | 146 | 92 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 88 | 83 | 83 | 83 | 83 | 14 | 14 | 14 | 14 | 14 | 7 | 7 | 14 | 14 | 14 | 38 | 83 | 83 | 83 | 38 | 83 | 83 | 83 |
Best forecast wave conditions in Nelson - Tasman Bay | |||||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)













