Surf Forecasts:
How big are the waves at Porpoise Bay today (31 Jul):
- Afternoon surf: Afternoon surf (31 Jul, local time) - 20ft (6.0m), 13s period with SSW swell.
- Evening surf: Evening surf (31 Jul, local time) - 16ft (5.0m), 12s period with S swell.
The current surf forecast for Porpoise Bay at 11PM is: 5.0m 12s primary swell from a South direction and 0.4m 10s secondary swell from a East direction (forecast issued at 05:00pm July 31). An open ocean swell of 0.3m 9s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | - | - |
| Afternoon (31 Jul) | 20ft (6.0m) | 13s |
| Evening (31 Jul) | 16ft (5.0m) | 12s |
Table - waves today at Porpoise Bay. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 18mm), heaviest on Mon morning. Very mild (max 11°C on Sun afternoon, min 5°C on Fri afternoon). Winds decreasing (strong winds from the S on Fri afternoon, light winds from the SW by Fri night). | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | |||||||||||||||||
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 13 | S 12 | S 12 | S 12 | S 11 | S 11 | SSE 11 | SSE 11 | S 10 | SSE 12 | SE 12 | WSW 9 | SW 9 | SW 9 | SW 11 | SSW 20 | SSW 19 | SSW 19 | SSW 18 |
Wave Graph  | |||||||||||||||||||
 kJ | 11596 | 9935 | 7660 | 6034 | 4283 | 3401 | 1891 | 1435 | 1275 | 731 | 549 | 723 | 798 | 734 | 949 | 1648 | 2964 | 3999 | 4200 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:41AM2.06m | 4:05PM2.08m | 4:18AM2.04m | 4:42PM2.05m | |||||||||||||||
Low Tide | 9:36PM0.37m | 9:52AM0.28m | 10:14PM0.37m | 10:32AM0.30m | |||||||||||||||
 |  | | |  | |  | |  | | | |  |  |  | |  |  | | |
 | — | — | — | — | — | 8:04 | — | — | — | — | — | — | — | 8:03 | — | — | — | — | — |
 | 5:32 | — | — | — | — | — | — | — | 5:34 | — | — | — | — | — | — | — | 5:36 | — | — |
mm | 1 | 1 | 1 | 1 | — | — | — | — | — | — | 1 | 1 | 1 | — | 1 | 1 | — | — | — |
Temp °C | 5 | 5 | 5 | 5 | 6 | 6 | 5 | 6 | 8 | 7 | 7 | 8 | 9 | 10 | 9 | 10 | 11 | 11 | 10 |
Feels °C | -7 | -5 | -4 | -3 | -1 | 0 | -1 | 0 | 0 | -1 | 0 | 2 | 3 | 4 | 2 | 3 | 2 | 2 | 1 |
Swell 1 Height (m) Direction Period (s) | E 11 | E 11 | E 11 | E 10 | E 10 | S 11 | SSE 11 | SSE 11 | S 10 | SSE 12 | SW 9 | SE 10 | SE 12 | SW 9 | SW 11 | SW 11 | SSW 19 | SSW 19 | SSW 18 |
| kJ | 82 | 81 | 57 | 34 | 34 | 3401 | 1891 | 1435 | 1275 | 731 | 421 | 385 | 355 | 734 | 949 | 771 | 2964 | 3999 | 4200 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | NE 9 | NE 9 | ENE 9 | S 22 | E 10 | SW 10 | SW 10 | SW 12 | SSW 9 | SE 12 | S 9 | SSW 19 | SE 12 | SE 12 | SSW 20 | SW 9 | SW 11 | SW 11 |
| kJ | 30 | 20 | 21 | 8 | 37 | 19 | 580 | 546 | 120 | 431 | 549 | 110 | 203 | 409 | 355 | 1648 | 433 | 651 | 794 |
Swell 3 Height (m) Direction Period (s) | SE 15 | SE 15 | — | SW 22 | SSW 22 | SSW 21 | SW 12 | SW 12 | SSW 20 | SW 12 | S 10 | SSW 19 | E 10 | SSW 19 | SSW 20 | SE 12 | SE 11 | SE 11 | SE 11 |
| kJ | 58 | 55 | — | 19 | 46 | 45 | 126 | 96 | 78 | 116 | 151 | 203 | 2 | 283 | 685 | 303 | 213 | 180 | 125 |
Wind waves Height (m) Direction Period (s) | SSW 13 | S 12 | S 12 | S 12 | S 11 | SW 11 | SW 10 | — | W 4 | WNW 5 | WNW 5 | WSW 9 | SW 9 | WNW 4 | WNW 5 | W 5 | W 6 | WNW 6 | W 6 |
| kJ | 11596 | 9935 | 7660 | 6034 | 4283 | 1210 | 862 | — | 48 | 103 | 90 | 723 | 798 | 20 | 24 | 85 | 200 | 240 | 360 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 451 | 611 | 301 | 301 | 159 | 63 | 34 | 34 | 109 | 95 | 95 | 109 | 112 | 34 | 34 | 109 | 109 | 112 | 112 |
Best forecast wave conditions in Catlins | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
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