Surf Forecasts:
How big are the waves at Mahia Spit today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 4.5ft (1.3m), 9s period with E swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 3.5ft (1.1m), 10s period with E swell.
- Evening surf: Evening surf (17 Aug, local time) - 3ft (0.9m), 10s period with E swell.
The current surf forecast for Mahia Spit at 4AM is: 1.6m 9s primary swell from a East-southeast direction (forecast issued at 11:00pm August 16). An open ocean swell of 0.7m 18s is not directed at the surf break, a second open ocean swell of 3.5m 10s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 4.5ft (1.3m) | 9s |
| Afternoon (17 Aug) | 3.5ft (1.1m) | 10s |
| Evening (17 Aug) | 3ft (0.9m) | 10s |
Table - waves today at Mahia Spit. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 20mm), heaviest during Sun night. Very mild (max 10°C on Sun night, min 8°C on Mon night). Winds decreasing (gales from the SSW on Tue night, fresh winds from the SSW by Wed afternoon). | |||||||||||||||||
Monday 17 | Tuesday 18 | ||||||||||||||||
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) | ESE 8 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 11 | E 11 |
Wave Graph  | |||||||||||||||||
 kJ | 284 | 547 | 432 | 442 | 300 | 306 | 234 | 158 | 148 | 110 | 83 | 81 | 60 | 41 | 19 | 9 | 9 |
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 | cross-off | cross-off | off | off | off | off | off | off | off | off | off | off |
High Tide | 8:41PM1.61m | 9:08AM1.52m | 9:30PM1.55m | 9:58AM1.49m | |||||||||||||
Low Tide | 3:02AM0.05m | 3:22PM0.10m | 3:51AM0.09m | 4:12PM0.15m | |||||||||||||
 | |  | |  | |  |  |  | | | | | |  | | | |
 | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — |
 | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:32 | — | — |
mm | 3 | 1 | — | — | 1 | 1 | 1 | — | 1 | 1 | — | — | 1 | 1 | — | 2 | 1 |
Temp °C | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 9 | 8 | 9 | 10 | 10 | 9 | 8 |
Feels °C | -1 | -2 | -2 | -2 | -2 | -1 | -1 | -1 | -1 | -1 | -1 | -2 | -2 | -2 | -3 | -4 | -6 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 11 | E 11 |
| kJ | 284 | 547 | 432 | 442 | 300 | 306 | 234 | 158 | 148 | 110 | 83 | 81 | 60 | 41 | 19 | 9 | 9 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SE 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | E 10 | — | — | S 14 | E 10 | S 14 | — | E 18 | E 18 | — | — |
| kJ | 95 | 9 | 302 | 333 | 306 | 357 | 204 | — | — | 148 | 73 | 97 | — | 6 | 6 | — | — |
Swell 3 Height (m) Direction Period (s) | SSW 19 | ESE 15 | ESE 15 | NE 8 | — | — | — | — | — | — | — | N 11 | — | — | — | — | — |
| kJ | 74 | 22 | 22 | 18 | — | — | — | — | — | — | — | 2 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 9 | S 10 | S 10 | S 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 | S 10 | S 11 | S 11 |
| kJ | 2150 | 2385 | 2473 | 2291 | 2081 | 1742 | 1568 | 1497 | 1437 | 1236 | 1215 | 1075 | 1197 | 2058 | 2866 | 4867 | 6282 |
Nearest Offshore or Glassy | |||||||||||||||||
Distance (km) | 273 | 164 | 164 | 100 | 100 | 100 | 160 | 92 | 86 | 86 | 86 | 73 | 112 | 169 | 293 | 169 | 171 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||
Header Global | |||||||||||||||||
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