Surf Forecasts:
How big are the waves at Mahia Spit today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 2ft (0.6m), 9s period with E swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 0.5ft (0.2m), 11s period with E swell.
- Evening surf: Evening surf (18 Aug, local time) - 0.5ft (0.1m), 16s period with SE swell.
The current surf forecast for Mahia Spit at 7PM is: 0.3m 10s primary swell from a East direction and 0.1m 16s secondary swell from a Southeast direction (forecast issued at 11:00am August 18). An open ocean swell of 4.5m 10s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 2ft (0.6m) | 9s |
| Afternoon (18 Aug) | 0.5ft (0.2m) | 11s |
| Evening (18 Aug) | 0.5ft (0.1m) | 16s |
Table - waves today at Mahia Spit. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Tue night. Very mild (max 11°C on Wed night, min 8°C on Tue night). Winds decreasing (gales from the SW on Tue afternoon, light winds from the WSW by Thu night). | |||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 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) | E 9 | E 10 | E 11 | E 10 | SE 16 | S 12 | ESE 15 | SSE 12 | SE 14 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 60 | 18 | 9 | 18 | 10 | 0 | 21 | 0 | 46 | 516 | 508 | 614 | 660 | 535 | 505 | 338 | 280 | 137 | 131 | 125 | 103 |
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 | cross-off | cross-off | off | off | off | off | off | off | off | off | cross-off | cross-off | off |
High Tide | 9:58AM1.49m | 10:19PM1.49m | 10:47AM1.45m | 11:07PM1.43m | 11:35AM1.41m | ||||||||||||||||
Low Tide | 4:12PM0.15m | 4:37AM0.14m | 5:00PM0.21m | 5:24AM0.20m | 5:48PM0.27m | ||||||||||||||||
 |  |  |  |  | | | | | | |  | | | | | | | |  | | |
 | 6:50 | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — |
 | — | — | 5:32 | — | — | — | — | — | — | — | 5:32 | — | — | — | — | — | — | — | 5:34 | — | — |
mm | — | 1 | — | 1 | 2 | 2 | 1 | 1 | — | — | — | — | — | 1 | — | 1 | — | — | — | — | — |
Temp °C | 9 | 10 | 9 | 9 | 8 | 8 | 8 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 11 | 11 | 11 | 11 | 11 | 11 |
Feels °C | -2 | -2 | -4 | -5 | -6 | -6 | -6 | -3 | -1 | 0 | 1 | 0 | 1 | 3 | 3 | 3 | 4 | 5 | 5 | 7 | 8 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 10 | E 11 | E 10 | SE 16 | — | ESE 15 | — | SE 14 | SE 9 | ESE 9 | ESE 9 | ESE 9 | S 14 | S 14 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | S 8 |
| kJ | 60 | 18 | 9 | 18 | 10 | — | 21 | — | 46 | 516 | 508 | 614 | 660 | 2545 | 1744 | 338 | 280 | 137 | 131 | 125 | 450 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | E 18 | E 18 | SE 16 | — | — | — | — | — | SE 14 | S 15 | — | SE 13 | ESE 9 | SE 9 | SE 11 | S 13 | S 13 | S 13 | S 13 | ESE 8 |
| kJ | 31 | 6 | 6 | 11 | — | — | — | — | — | 65 | 1195 | — | 40 | 535 | 505 | 44 | 423 | 276 | 168 | 87 | 103 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SE 14 | — | — | — | — | — | — | ESE 13 | ESE 13 | SE 13 | S 18 | SSE 18 |
| kJ | — | — | — | — | — | — | — | — | — | 46 | — | — | — | — | — | — | 17 | 18 | 7 | 26 | 102 |
Wind waves Height (m) Direction Period (s) | S 9 | S 9 | S 10 | S 10 | S 11 | S 12 | S 12 | SSE 12 | SSE 11 | SSE 11 | S 11 | S 15 | S 15 | SSW 14 | SSW 14 | S 14 | S 8 | S 8 | S 8 | S 8 | — |
| kJ | 1157 | 2065 | 2756 | 3951 | 5718 | 6548 | 6810 | 6148 | 4815 | 3937 | 2883 | 4201 | 3281 | 3448 | 2776 | 2019 | 466 | 601 | 623 | 566 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 100 | 169 | 321 | 164 | 169 | 169 | 344 | 100 | 100 | 100 | 164 | 97 | 73 | 2 | 10 | 56 | 56 | 0 | 164 | 2 | 0 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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