Surf Forecasts:
How big are the waves at Porpoise Bay today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 16ft (5.0m), 18s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 13ft (4.0m), 17s period with SSW swell.
- Evening surf: Evening surf (18 Jul, local time) - 11ft (3.5m), 16s period with SSW swell.
The current surf forecast for Porpoise Bay at 6PM is: 4.0m 16s primary swell from a South-southwest direction and 1.0m 14s secondary swell from a East-southeast direction (forecast issued at 11:00am July 18). An open ocean swell of 1.8m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 16ft (5.0m) | 18s |
| Afternoon (18 Jul) | 13ft (4.0m) | 17s |
| Evening (18 Jul) | 11ft (3.5m) | 16s |
Table - waves today at Porpoise Bay. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Sat night. Very mild (max 11°C on Sat morning, min 6°C on Mon morning). Winds decreasing (fresh winds from the WNW on Sat night, light winds from the WNW by Mon afternoon). | |||||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | |||||||||||||||||||
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) | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 15707 | 11808 | 9076 | 7222 | 5914 | 5732 | 4288 | 4173 | 4230 | 4591 | 4853 | 5124 | 5296 | 5583 | 4545 | 5246 | 4681 | 4353 | 3615 | 2885 | 2355 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:25PM2.27m | 5:46AM2.20m | 6:16PM2.14m | 6:40AM2.08m | 7:08PM2.01m | ||||||||||||||||
Low Tide | 11:11AM0.06m | 11:39PM0.20m | 12:04PM0.19m | 00:32AM0.29m | 12:58PM0.32m | ||||||||||||||||
 | | |  | |  |  | |  |  |  |  | | | | | | | |  | | |
 | 8:19 | — | — | — | — | — | — | 8:18 | — | — | — | — | — | — | — | 8:18 | — | — | — | — | — |
 | — | — | 5:19 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:21 | — | — |
mm | 1 | 1 | 1 | 3 | 1 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 11 | 11 | 11 | 10 | 9 | 8 | 7 | 7 | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 6 | 7 | 8 | 7 | 7 |
Feels °C | 4 | 4 | 3 | 4 | 2 | 5 | 3 | 2 | 2 | 3 | 4 | 5 | 5 | 5 | 5 | 4 | 2 | 3 | 5 | 3 | 3 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 |
| kJ | 15707 | 11808 | 9076 | 7222 | 5914 | 5732 | 4288 | 4173 | 4230 | 4591 | 4853 | 5124 | 5296 | 5583 | 4545 | 5246 | 4681 | 4353 | 3615 | 2885 | 2355 |
Swell 2 Height (m) Direction Period (s) | ESE 15 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | S 18 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 |
| kJ | 537 | 508 | 487 | 402 | 390 | 379 | 373 | 282 | 273 | 269 | 215 | 192 | 189 | 142 | 1688 | 99 | 83 | 83 | 83 | 56 | 56 |
Swell 3 Height (m) Direction Period (s) | WNW 6 | — | — | — | — | — | — | — | — | — | — | — | — | ESE 13 | ESE 12 | ESE 12 | — | — | — | — | — |
| kJ | 53 | — | — | — | — | — | — | — | — | — | — | — | — | 181 | 133 | 117 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WNW 5 | W 5 | W 6 | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 70 | 117 | 235 | 236 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 109 | 34 | 34 | 109 | 109 | 63 | 63 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Catlins | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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