Surf Forecasts:
How big are the waves at Porpoise Bay today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 23ft (7.0m), 17s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 18ft (5.5m), 17s period with SSW swell.
- Evening surf: Evening surf (20 Sep, local time) - 13ft (4.0m), 16s period with SSW swell.
The current surf forecast for Porpoise Bay at 10AM is: 7.0m 17s primary swell from a South-southwest direction (forecast issued at 05:00am September 20). The wind direction is predicted to be cross-shore and the swell rating is 11.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 23ft (7.0m) | 17s |
| Afternoon (20 Sep) | 18ft (5.5m) | 17s |
| Evening (20 Sep) | 13ft (4.0m) | 16s |
Table - waves today at Porpoise Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 21mm), heaviest during Mon afternoon. Very mild (max 16°C on Mon morning, min 5°C on Tue night). Winds decreasing (strong winds from the WSW on Sun morning, light winds from the NNW by Sun night). | |||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||||
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 | 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 16 | SSW 16 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 20207 | 26379 | 27910 | 29160 | 17708 | 11513 | 8219 | 6308 | 4097 | 2968 | 1426 | 1220 | 1271 | 3097 | 2123 | 2765 | 3100 | 3113 | 3921 | 3415 | 7187 | 7456 | 6943 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross | cross | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross | cross-off | cross-off | cross | cross | cross | cross-on |
High Tide | 9:28AM1.76m | 9:51PM1.72m | 10:26AM1.81m | 10:44PM1.78m | 11:13AM1.88m | ||||||||||||||||||
Low Tide | 3:05AM0.68m | 3:40PM0.72m | 4:01AM0.63m | 4:31PM0.65m | 4:49AM0.55m | 5:16PM0.56m | |||||||||||||||||
 | |  |  |  | |  |  | | | |  | |  |  | |  | | | | | | | |
 | — | 6:37 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — |
 | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:39 | — |
mm | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 6 | 3 | 1 | — | — | — | 4 | 1 | 1 | 1 |
Temp °C | 6 | 6 | 7 | 9 | 9 | 9 | 9 | 7 | 7 | 8 | 13 | 16 | 16 | 8 | 7 | 7 | 7 | 6 | 7 | 7 | 8 | 6 | 6 |
Feels °C | -6 | -6 | -3 | -1 | 1 | 2 | 2 | 2 | 3 | 3 | 5 | 7 | 8 | -1 | -1 | -1 | 0 | -2 | -1 | -2 | -1 | -2 | -2 |
Swell 1 Height (m) Direction Period (s) | ESE 11 | — | — | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SW 14 | SW 14 | SW 15 | S 10 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | ESE 12 | ESE 12 | ESE 12 |
| kJ | 25 | — | — | 24280 | 17708 | 11513 | 8219 | 6308 | 4097 | 2968 | 1426 | 1220 | 1271 | 66 | 2123 | 2765 | 3100 | 3113 | 3921 | 3415 | 14 | 14 | 14 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | ESE 11 | ESE 11 | ESE 11 | ESE 11 | S 11 | S 10 | S 10 | ESE 10 | E 10 | E 10 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | — | — | ESE 12 |
| kJ | — | — | — | — | — | — | 12 | 12 | 11 | 11 | 396 | 270 | 125 | 20 | 8 | 8 | 17 | 17 | 17 | 15 | — | — | 14 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | ESE 11 | ESE 10 | ESE 10 | ESE 10 | SE 14 | SE 13 | SE 13 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 11 | 11 | 10 | 10 | 8 | 7 | 7 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 16 | SSW 16 | SSW 17 | SSW 17 | — | W 5 | WNW 5 | NW 6 | NW 5 | NW 4 | NW 4 | NNW 4 | NW 5 | SW 15 | SW 7 | SW 7 | WSW 6 | WSW 6 | WNW 6 | W 6 | SW 15 | SW 15 | SW 15 |
| kJ | 20207 | 26379 | 27910 | 29160 | — | 83 | 91 | 60 | 34 | 10 | 35 | 52 | 56 | 3097 | 370 | 408 | 253 | 288 | 188 | 261 | 7187 | 7456 | 6943 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 301 | 301 | 454 | 808 | 451 | 451 | 34 | 34 | 0 | 55 | 109 | 112 | 45 | 109 | 426 | 34 | 34 | 109 | 109 | 34 | 426 | 109 | 301 |
Best forecast wave conditions in Catlins | |||||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||||
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