Surf Forecasts:
How big are the waves at Porpoise Bay today (31 Jul):
- Afternoon surf: Afternoon surf (31 Jul, local time) - 4.5ft (1.4m), 14s period with SSW swell.
- Evening surf: Evening surf (31 Jul, local time) - 4ft (1.2m), 14s period with SW swell.
The current surf forecast for Porpoise Bay at 12AM is: 1.2m 14s primary swell from a South-southwest direction and 0.9m 11s secondary swell from a East direction (forecast issued at 05:00pm July 30). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | - | - |
| Afternoon (31 Jul) | 4.5ft (1.4m) | 14s |
| Evening (31 Jul) | 4ft (1.2m) | 14s |
Table - waves today at Porpoise Bay. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 17mm), heaviest on Fri afternoon. Very mild (max 13°C on Thu afternoon, min 5°C on Fri morning). Winds increasing (light winds from the NNW on Thu afternoon, near gales from the SSW by Fri morning). | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | |||||||||||||||||
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 14 | SSW 14 | SW 14 | SSW 14 | SW 13 | SW 13 | SW 14 | SW 13 | SSW 13 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 10 | S 10 | SSE 10 | WSW 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 796 | 691 | 581 | 486 | 412 | 412 | 743 | 4937 | 12343 | 10860 | 8854 | 6678 | 5586 | 3464 | 2651 | 1924 | 1249 | 637 | 732 |
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 | cross-off | on | on | on | on | on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross |
High Tide | 3:05AM2.06m | 3:29PM2.10m | 3:41AM2.06m | 4:05PM2.08m | |||||||||||||||
Low Tide | 8:58PM0.38m | 9:14AM0.28m | 9:36PM0.37m | 9:52AM0.28m | |||||||||||||||
 |  |  | |  | |  | | | | | | | | | | | | | |
 | — | — | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:04 | — | — | — | — | — |
 | 5:31 | — | — | — | — | — | — | — | 5:32 | — | — | — | — | — | — | — | 5:34 | — | — |
mm | — | — | — | — | 1 | — | 1 | 3 | 4 | 1 | 1 | 1 | — | — | — | — | — | 1 | 2 |
Temp °C | 13 | 11 | 10 | 9 | 8 | 8 | 8 | 5 | 5 | 6 | 6 | 6 | 7 | 6 | 6 | 6 | 8 | 7 | 9 |
Feels °C | 11 | 9 | 8 | 5 | 1 | -1 | 4 | -7 | -7 | -4 | -3 | -2 | 0 | 0 | 0 | 0 | 0 | -1 | 3 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SW 14 | SSW 14 | SW 13 | SW 13 | SW 14 | E 11 | E 11 | E 11 | E 11 | E 10 | S 12 | S 11 | S 11 | S 10 | S 10 | SSE 10 | SE 11 |
| kJ | 796 | 691 | 581 | 486 | 412 | 412 | 743 | 146 | 110 | 81 | 55 | 34 | 4921 | 3464 | 2651 | 1924 | 1249 | 637 | 582 |
Swell 2 Height (m) Direction Period (s) | E 12 | E 12 | E 11 | E 11 | E 11 | E 11 | E 11 | ESE 16 | ENE 9 | ENE 9 | NE 9 | ENE 9 | E 10 | E 10 | E 10 | SW 12 | SW 12 | SSW 9 | S 9 |
| kJ | 271 | 266 | 257 | 202 | 157 | 154 | 192 | 24 | 31 | 31 | 21 | 8 | 34 | 19 | 19 | 122 | 120 | 293 | 81 |
Swell 3 Height (m) Direction Period (s) | WSW 18 | SSW 18 | — | ENE 6 | ENE 6 | ENE 6 | SE 16 | SE 16 | SE 15 | — | — | NE 9 | S 22 | SSW 21 | SSW 21 | SSW 20 | SSW 20 | SW 12 | SSW 19 |
| kJ | 126 | 64 | — | 12 | 12 | 12 | 10 | 39 | 58 | — | — | 19 | 37 | 45 | 42 | 78 | 78 | 141 | 137 |
Wind waves Height (m) Direction Period (s) | NE 4 | — | ENE 5 | — | NW 3 | WNW 4 | WNW 4 | SW 13 | SSW 13 | S 12 | S 12 | S 12 | S 12 | SW 10 | SW 10 | SW 10 | W 4 | WNW 5 | WSW 9 |
| kJ | 9 | — | 9 | — | 8 | 37 | 21 | 4937 | 12343 | 10860 | 8854 | 6678 | 5586 | 1134 | 833 | 557 | 44 | 99 | 732 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 45 | 112 | 0 | 63 | 454 | 581 | 301 | 301 | 160 | 63 | 34 | 34 | 34 | 109 | 34 |
Best forecast wave conditions in Catlins | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
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