Surf Forecasts:
How big are the waves at Porpoise Bay today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 10ft (3.0m), 11s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 11ft (3.5m), 16s period with SSW swell.
- Evening surf: Evening surf (18 Aug, local time) - 11ft (3.5m), 15s period with SSW swell.
The current surf forecast for Porpoise Bay at 7PM is: 3.5m 15s primary swell from a South-southwest direction and 0.3m 10s secondary swell from a East direction (forecast issued at 11:00am August 18). The wind direction is predicted to be cross-onshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 10ft (3.0m) | 11s |
| Afternoon (18 Aug) | 11ft (3.5m) | 16s |
| Evening (18 Aug) | 11ft (3.5m) | 15s |
Table - waves today at Porpoise Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 10°C on Thu morning, min 6°C on Thu night). Mainly fresh winds. | |||||||||||||||||||||
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) | SSW 11 | SSW 12 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 13 | SSW 14 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2510 | 2369 | 5502 | 5627 | 4893 | 4295 | 3854 | 3121 | 2831 | 2412 | 2171 | 1831 | 1561 | 1422 | 1514 | 1744 | 2107 | 2164 | 2109 | 2126 | 1716 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross-off | cross | cross-off | cross-off |
High Tide | 6:03AM2.04m | 6:27PM1.95m | 6:56AM1.92m | 7:21PM1.84m | 7:56AM1.82m | 8:21PM1.76m | |||||||||||||||
Low Tide | 12:20PM0.42m | 00:45AM0.46m | 1:15PM0.56m | 1:42AM0.57m | 2:14PM0.66m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | | |  |  |  | |
 | 7:39 | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:35 | — | — | — | — | — |
 | — | — | 5:54 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:58 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 9 | 9 | 9 | 9 | 8 | 9 | 9 | 8 | 8 | 9 | 9 | 9 | 9 | 8 | 9 | 9 | 9 | 10 | 10 | 9 | 8 |
Feels °C | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 4 | 5 | 5 | 5 | 5 | 4 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 17 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 13 | SSW 14 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 |
| kJ | 240 | 711 | 5502 | 5627 | 4893 | 4295 | 3854 | 3121 | 2831 | 2412 | 2171 | 1831 | 1561 | 1422 | 1514 | 1744 | 2107 | 2164 | 2109 | 2126 | 1716 |
Swell 2 Height (m) Direction Period (s) | ENE 11 | ENE 11 | ENE 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 |
| kJ | 22 | 22 | 22 | 18 | 18 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 7 | 7 | 6 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ENE 10 | ESE 12 | ESE 12 | ESE 12 | ESE 13 | ESE 13 | ESE 12 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | SE 11 | SE 13 | SE 13 | SE 12 |
| kJ | 17 | 17 | 17 | 16 | 35 | 15 | 15 | 14 | 16 | 16 | 15 | 16 | 15 | 14 | 14 | 13 | 13 | 5 | 7 | 7 | 6 |
Wind waves Height (m) Direction Period (s) | SSW 11 | SSW 12 | SW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 3 | WNW 3 | W 3 | — | W 4 |
| kJ | 2510 | 2369 | 2458 | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 9 | 6 | — | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 301 | 301 | 393 | 63 | 34 | 34 | 34 | 34 | 34 | 34 | 63 | 63 | 63 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 0 |
Best forecast wave conditions in Catlins | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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