Surf Forecasts:
How big are the waves at Mahia Spit today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 4.5ft (1.3m), 9s period with ESE swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 3.5ft (1.0m), 9s period with ESE swell.
- Evening surf: Evening surf (20 Aug, local time) - 3.5ft (1.0m), 9s period with ESE swell.
The current surf forecast for Mahia Spit at 5AM is: 1.7m 9s primary swell from a East-southeast direction and 1.5m 9s secondary swell from a East-southeast direction (forecast issued at 11:00pm August 19). An open ocean swell of 2.4m 14s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 4.5ft (1.3m) | 9s |
| Afternoon (20 Aug) | 3.5ft (1.0m) | 9s |
| Evening (20 Aug) | 3.5ft (1.0m) | 9s |
Table - waves today at Mahia Spit. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Very mild (max 15°C on Sat afternoon, min 9°C on Wed night). Winds decreasing (strong winds from the SW on Wed night, calm by Sat morning). | |||||||||||||||||
Thursday 20 | Friday 21 | ||||||||||||||||
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 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | ESE 8 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
Wave Graph  | |||||||||||||||||
 kJ | 660 | 535 | 430 | 338 | 251 | 208 | 158 | 184 | 151 | 103 | 111 | 106 | 55 | 149 | 149 | 111 | 94 |
Wind (km/h) | |||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross | cross-on | on | on | cross-on |
High Tide | 11:07PM1.43m | 11:35AM1.41m | 11:54PM1.37m | 12:23PM1.37m | |||||||||||||
Low Tide | 5:24AM0.20m | 5:48PM0.27m | 6:09AM0.26m | 6:36PM0.32m | |||||||||||||
 |  | | |  |  | |  | | | | |  | | |  | | |
 | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — |
 | — | — | — | — | — | — | 5:34 | — | — | — | — | — | — | — | 5:35 | — | — |
mm | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 10 | 9 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 10 | 11 | 12 | 11 | 11 |
Feels °C | 3 | 3 | 1 | 1 | 3 | 4 | 4 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 5 | 6 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | S 14 | S 14 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | S 8 | S 8 | S 8 | S 8 | S 13 | S 16 | S 16 | S 15 | S 13 |
| kJ | 660 | 2346 | 1744 | 338 | 251 | 208 | 158 | 184 | 405 | 324 | 277 | 245 | 663 | 1305 | 1093 | 978 | 704 |
Swell 2 Height (m) Direction Period (s) | SE 12 | ESE 9 | ESE 9 | SE 11 | S 13 | S 13 | S 13 | S 13 | ESE 9 | ESE 8 | S 16 | ESE 9 | S 16 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
| kJ | 40 | 535 | 430 | 43 | 430 | 276 | 168 | 87 | 151 | 103 | 438 | 106 | 264 | 149 | 149 | 111 | 83 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | ESE 13 | ESE 13 | ESE 13 | S 18 | SSE 18 | S 12 | ESE 9 | S 16 | ESE 8 | — | — | — | SE 10 |
| kJ | — | — | — | — | 18 | 18 | 18 | 26 | 102 | 78 | 111 | 260 | 55 | — | — | — | 94 |
Wind waves Height (m) Direction Period (s) | S 15 | SSW 14 | SSW 14 | S 14 | S 8 | S 8 | S 8 | S 8 | — | — | — | — | — | — | — | — | NE 3 |
| kJ | 3051 | 3434 | 2831 | 2197 | 540 | 542 | 601 | 505 | — | — | — | — | — | — | — | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||
Distance (km) | 56 | 0 | 33 | 86 | 56 | 97 | 101 | 2 | 0 | 0 | 0 | 0 | 7 | 6 | 6 | 7 | 12 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||
Header Global | |||||||||||||||||
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