Surf Forecasts:
How big are the waves at Porpoise Bay today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 18ft (5.5m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 16ft (5.0m), 15s period with SW swell.
- Evening surf: Evening surf (31 Aug, local time) - 18ft (5.5m), 14s period with SSW swell.
The current surf forecast for Porpoise Bay at 6AM is: 5.5m 14s primary swell from a Southwest direction (forecast issued at 11:00pm August 30). The wind direction is predicted to be cross-shore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 18ft (5.5m) | 14s |
| Afternoon (31 Aug) | 16ft (5.0m) | 15s |
| Evening (31 Aug) | 18ft (5.5m) | 14s |
Table - waves today at Porpoise Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 31mm), heaviest during Wed afternoon. Very mild (max 13°C on Wed afternoon, min 5°C on Mon morning). Winds decreasing (near gales from the WSW on Sun night, moderate winds from the NNW by Wed morning). | |||||||||||||||||
Monday 31 | Tuesday 1 | ||||||||||||||||
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) | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
Wave Graph  | |||||||||||||||||
 kJ | 13760 | 12665 | 11980 | 12787 | 12934 | 12661 | 11243 | 10768 | 11195 | 10529 | 9110 | 7622 | 6954 | 5175 | 4527 | 3641 | 3354 |
Wind (km/h) | |||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross-off |
High Tide | 3:48AM2.15m | 4:12PM2.12m | 4:31AM2.13m | 4:55PM2.07m | |||||||||||||
Low Tide | 9:41PM0.27m | 10:02AM0.23m | 10:22PM0.30m | 10:47AM0.30m | |||||||||||||
 |  | | |  | |  | | | | | | | | |  | | |
 | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:12 | — | — | — | — | — | — | — | 6:13 | — |
mm | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | — | 1 |
Temp °C | 7 | 6 | 6 | 6 | 5 | 6 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 10 | 10 | 10 |
Feels °C | -4 | -5 | -5 | -6 | -6 | -5 | -6 | -5 | -6 | -6 | -5 | -3 | -3 | -2 | 0 | 0 | 0 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 24 | S 24 | — | SSW 21 | SSW 22 | SW 20 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
| kJ | — | — | — | — | — | — | — | 54 | 43 | — | 153 | 91 | 388 | 5175 | 4527 | 3641 | 3354 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 20 | — | SSW 18 | S 18 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 298 | — | 553 | 759 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | W 6 | W 6 | W 6 | W 6 |
| kJ | 13760 | 12665 | 11980 | 12787 | 12934 | 12661 | 11243 | 10768 | 11195 | 10529 | 9110 | 7622 | 6954 | 214 | 241 | 368 | 322 |
Nearest Offshore or Glassy | |||||||||||||||||
Distance (km) | 301 | 125 | 301 | 301 | 301 | 451 | 539 | 1106 | 539 | 215 | 301 | 301 | 301 | 209 | 196 | 196 | 160 |
Best forecast wave conditions in Catlins | |||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||
Header Global | |||||||||||||||||
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