Surf Forecasts:
How big are the waves at Port Robinson today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 8ft (2.4m), 8s period with S swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 8ft (2.5m), 10s period with S swell.
- Evening surf: Evening surf (18 Aug, local time) - 10ft (3.0m), 10s period with SSE swell.
The current surf forecast for Port Robinson at 7PM is: 3.0m 10s primary swell from a South-southeast direction and 0.4m 11s secondary swell from a East direction (forecast issued at 11:00am August 18). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 8ft (2.4m) | 8s |
| Afternoon (18 Aug) | 8ft (2.5m) | 10s |
| Evening (18 Aug) | 10ft (3.0m) | 10s |
Table - waves today at Port Robinson. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 10°C on Tue morning, min 7°C on Wed night). Winds decreasing (strong winds from the SSW on Tue afternoon, calm by Thu morning). | |||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||
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) | S 8 | S 9 | S 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | SSE 16 | SSE 15 | SSE 15 | SE 9 | SSE 9 | SE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 16 | SSE 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 819 | 702 | 1461 | 1887 | 1730 | 1129 | 1792 | 921 | 780 | 584 | 380 | 338 | 288 | 180 | 204 | 170 | 151 | 138 | 127 | 181 | 177 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | glassy | glassy | off | off | glassy | glassy | glassy | cross-on | on | cross-on |
High Tide | 8:53AM1.62m | 9:17PM1.58m | 9:47AM1.58m | 10:10PM1.52m | 10:40AM1.56m | ||||||||||||||||
Low Tide | 3:09PM0.22m | 3:33AM0.22m | 4:02PM0.28m | 4:23AM0.27m | 4:54PM0.34m | ||||||||||||||||
 |  |  |  |  |  | | | |  | |  | | | | | | | | | | |
 | 7:16 | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — |
 | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:46 | — | — |
mm | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 8 | 10 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 10 | 10 | 9 | 8 | 7 | 7 | 8 | 9 | 9 | 8 | 8 |
Feels °C | 1 | 0 | -1 | 0 | 0 | 2 | 3 | 4 | 4 | 4 | 6 | 8 | 7 | 6 | 5 | 5 | 6 | 8 | 6 | 5 | 5 |
Swell 1 Height (m) Direction Period (s) | S 8 | E 10 | E 10 | E 11 | E 11 | SSE 14 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SE 9 | SSE 9 | SE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 401 | 71 | 52 | 35 | 20 | 682 | 867 | 630 | 523 | 475 | 380 | 338 | 288 | 180 | 204 | 170 | 151 | 138 | 127 | 113 | 89 |
Swell 2 Height (m) Direction Period (s) | E 10 | ESE 13 | ESE 10 | — | ESE 10 | E 11 | SSE 15 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | ESE 8 | ESE 9 | E 9 | ESE 9 | E 9 | SSE 17 | SSE 16 | SSE 16 |
| kJ | 69 | 17 | 9 | — | 9 | 21 | 874 | 921 | 780 | 584 | 367 | 178 | 107 | 75 | 28 | 42 | 61 | 39 | 108 | 181 | 177 |
Swell 3 Height (m) Direction Period (s) | SE 9 | ESE 9 | — | — | E 12 | ESE 14 | E 12 | ESE 12 | E 11 | — | SE 11 | SE 12 | ESE 12 | SSE 14 | ESE 12 | ESE 12 | ESE 11 | SE 17 | E 8 | ESE 7 | SSE 10 |
| kJ | 21 | 8 | — | — | 11 | 19 | 11 | 14 | 9 | — | 5 | 39 | 29 | 40 | 28 | 27 | 13 | 71 | 36 | 11 | 36 |
Wind waves Height (m) Direction Period (s) | S 8 | S 9 | S 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 819 | 702 | 1461 | 1887 | 1730 | 1129 | 1792 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 81 | 176 | 186 | 84 | 84 | 81 | 75 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 28 | 28 |
Best forecast wave conditions in Canterbury | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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