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Surf Forecasts:
Mahia Spit surfForecast / Gisborne and Mahia / New Zealand
48hr Weather and Surf, issued 5 am Wednesday 20 May 2026 NZSTForecast update in hr min s Forecast update imminent
Mahia Spit surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mahia Spit sea temperature is
15.5° C
(Which is slightly cooler than normal)How big are the waves at Mahia Spit today?
The current surf forecast for Mahia Spit at 11AM is: 0.3m 8s primary swell from a East direction and 0.3m 2s secondary swell from a Northeast direction (forecast issued at 05:00am May 20). An open ocean swell of 0.7m 9s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 1ft (0.3m) | 9s |
| Afternoon (20 May) | 0.5ft (0.2m) | 13s |
| Evening (20 May) | 2.5ft (0.8m) | 4s |
Table - waves today at Mahia Spit. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Thu afternoon, min 11°C on Wed night). Winds decreasing (fresh winds from the NNE on Wed afternoon, calm by Thu night). | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 | 9 PM | 12 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 9 | E 9 | E 9 | E 8 | E 13 | NE 4 | NE 4 | NE 4 | NE 4 | NNE 4 | NE 4 | E 12 | NE 4 | NE 5 | NE 5 | NE 5 | NE 5 | NE 8 | NE 8 | NE 7 | NE 7 | NE 11 | NE 10 | ENE 10 | |
14 | 14 | 13 | 13 | 14 | 14 | 24 | 18 | 9 | 11 | 6 | 11 | 9 | 43 | 20 | 13 | 12 | 34 | 32 | 14 | 11 | 29 | 48 | 38 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | on | cross-on | cross | cross-off | glassy | glassy | off | off | glassy | on | cross-on | cross-on | |
High Tide | 8:21AM1.61m | 8:52PM1.74m | 9:17AM1.59m | 9:48PM1.71m | 10:15AM1.54m | 10:44PM1.66m | ||||||||||||||||||
Low Tide | 2:17AM0.01m | 2:36PM-0.03m | 3:14AM0.01m | 3:33PM-0.01m | 4:11AM0.03m | 4:29PM0.03m | ||||||||||||||||||
 | |  | | | | | | | | | | | | | | | | | | | | | | |
 | — | 7:07 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | 7:09 |
 | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 4:59 | — | — | 4:58 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 12 | 11 | 11 | 11 | 14 | 17 | 17 | 17 | 15 | 14 | 13 | 13 | 13 | 14 | 13 | 13 | 13 |
9 | 9 | 8 | 8 | 8 | 7 | 8 | 7 | 7 | 8 | 6 | 12 | 14 | 13 | 14 | 13 | 13 | 13 | 12 | 12 | 13 | 11 | 10 | 10 | |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 8 | NE 4 | SSE 7 | SE 7 | SSE 7 | SSE 7 | NE 5 | NE 5 | NE 5 | NE 5 | NE 8 | NE 8 | NE 7 | SE 10 | SE 10 | NE 10 | ENE 10 |
 kJ | 71 | 70 | 70 | 64 | 47 | 49 | 50 | 24 | 9 | 20 | 12 | 9 | 4 | 21 | 20 | 13 | 12 | 34 | 32 | 14 | 25 | 24 | 48 | 38 |
Swell 2 Height (m) Direction Period (s) | E 5 | ENE 5 | ENE 5 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 8 | NE 4 | NE 4 | E 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | NE 7 | NE 11 | SE 10 | SE 10 |
| kJ | 7 | 4 | 4 | 13 | 13 | 12 | 13 | 6 | 22 | 6 | 4 | 6 | 8 | 8 | 8 | 8 | 8 | 16 | 8 | 7 | 11 | 29 | 24 | 23 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 4 | E 13 | E 13 | E 13 | E 13 | E 9 | E 9 | E 8 | E 12 | E 9 | E 8 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | ENE 9 | NE 7 | SSW 4 | SSW 5 |
| kJ | 14 | 14 | 13 | 2 | 14 | 14 | 14 | 13 | 6 | 6 | 6 | 11 | 6 | 6 | 17 | 14 | 14 | 13 | 12 | 11 | 7 | 11 | 2 | 6 |
Wind waves Height (m) Direction Period (s) | — | NE 5 | — | NE 2 | NE 3 | NE 4 | NE 4 | NE 4 | NNW 3 | NNE 4 | N 2 | NE 4 | NE 4 | NE 5 | — | — | WNW 3 | W 3 | — | — | — | — | — | — |
| kJ | — | 5 | — | 1 | 4 | 14 | 24 | 18 | 2 | 11 | 1 | 9 | 9 | 43 | — | — | 1 | 1 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 7 | 7 | 10 | 10 | 10 | 10 | 12 | 79 | 79 | 7 | 94 | 79 | 171 | 7 | 7 | 7 | 7 | 2 | 2 | 7 | 7 | 52 | 52 | 12 |
Best forecast wave conditions in Gisborne and Mahia | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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