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Porpoise Bay Surf Forecast
/ Catlins (9 surf breaks) /
Surf Forecasts:
Porpoise Bay surfForecast / Catlins / New Zealand
48hr Weather and Surf, issued 11 pm Wednesday 20 May 2026 NZSTForecast update in hr min s Forecast update imminent
Porpoise Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porpoise Bay sea temperature is
12.8° C
(Which is 2.3°C warmer than normal for this time of year)How big are the waves at Porpoise Bay today?
The current surf forecast for Porpoise Bay at 6AM is: 0.4m 18s primary swell from a South-southwest direction and 0.1m 11s secondary swell from a Southwest direction (forecast issued at 11:00pm May 20). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 1.5ft (0.5m) | 17s |
| Afternoon (21 May) | 7ft (2.2m) | 6s |
| Evening (21 May) | 7.5ft (2.3m) | 11s |
Table - waves today at Porpoise Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Thu morning. Very mild (max 14°C on Wed night, min 6°C on Thu night). Winds increasing (light winds from the N on Wed night, fresh winds from the W by Thu afternoon). | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | ||||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Swell Height Map |  |    |    |    | ||||||||||||||||||||
SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | WSW 6 | WSW 6 | WSW 7 | SW 11 | SW 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 14 | SSW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SSW 14 | SSW 14 | |
70 | 106 | 123 | 123 | 172 | 246 | 373 | 440 | 1154 | 1372 | 1472 | 1450 | 1320 | 1256 | 545 | 811 | 681 | 1144 | 1365 | 1584 | 2436 | 5276 | 4170 | 4834 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | off | off | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | |
High Tide | 5:37AM2.21m | 6:15PM2.25m | 6:39AM2.14m | 7:18PM2.16m | 7:43AM2.07m | |||||||||||||||||||
Low Tide | 11:32PM0.25m | 11:58AM0.14m | 00:35AM0.30m | 1:02PM0.21m | 1:37AM0.34m | 2:04PM0.26m | ||||||||||||||||||
 |  | | |  |  |  | | |  | | | | | | | | | | | |  |  | | |
 | — | — | — | 8:06 | — | — | — | — | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:07 | — | — | — | — |
 | — | — | — | — | — | — | 5:14 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:12 | — |
— | — | — | — | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 10 | 14 | 14 | 10 | 11 | 11 | 11 | 10 | 8 | 7 | 6 | 6 | 8 | 10 | 10 | 9 | 8 | 10 | 11 | 9 | 10 | 11 | 9 |
7 | 6 | 8 | 8 | 3 | 3 | 3 | 3 | 4 | 3 | 3 | 2 | 2 | 3 | 5 | 4 | 2 | 2 | 3 | 6 | 4 | 6 | 6 | 5 | |
Swell 1 Height (m) Direction Period (s) | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SW 11 | SSW 14 | SW 14 | SW 13 | SW 13 | SW 13 | S 24 | SW 14 | SSW 14 | SSW 14 |
 kJ | 70 | 106 | 123 | 123 | 172 | 151 | 147 | 147 | 203 | 1372 | 1472 | 1450 | 1320 | 1256 | 512 | 811 | 681 | 1144 | 1365 | 1584 | 11 | 3197 | 4170 | 4834 |
Swell 2 Height (m) Direction Period (s) | SW 12 | ENE 4 | WSW 11 | SW 11 | ENE 5 | ENE 6 | ENE 6 | ENE 7 | ENE 8 | ENE 8 | ENE 7 | SW 15 | ENE 8 | NE 8 | SSW 14 | SW 12 | E 7 | E 11 | — | — | — | SSW 22 | SW 20 | SW 19 |
| kJ | 35 | 4 | 12 | 5 | 7 | 6 | 8 | 10 | 12 | 6 | 5 | 54 | 6 | 2 | 545 | 200 | 1 | 2 | — | — | — | 47 | 312 | 1037 |
Swell 3 Height (m) Direction Period (s) | E 4 | SW 11 | S 11 | S 11 | S 12 | S 12 | S 11 | S 11 | E 12 | SE 12 | E 12 | ENE 8 | E 12 | E 12 | NE 7 | NE 7 | E 11 | — | — | — | — | — | — | — |
| kJ | 1 | 20 | 2 | 2 | 3 | 3 | 3 | 2 | 3 | 6 | 3 | 7 | 3 | 3 | 2 | 2 | 2 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 2 | NNW 3 | NNE 3 | NNE 4 | W 4 | WSW 6 | WSW 6 | WSW 7 | SW 11 | — | — | — | NW 3 | NW 3 | WNW 3 | W 5 | W 6 | WNW 5 | WNW 5 | WNW 5 | SW 13 | SW 13 | — | — |
| kJ | 1 | 1 | 6 | 19 | 33 | 246 | 373 | 440 | 1154 | — | — | — | 2 | 2 | 9 | 60 | 205 | 111 | 111 | 78 | 2436 | 5276 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 42 | 42 | 64 | 63 | 64 | 64 | 34 | 34 | 0 | 0 | 0 | 34 | 34 | 34 | 34 | 64 | 109 | 109 | 34 | 34 | 63 | 34 |
Best forecast wave conditions in Catlins | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
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