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Surf Forecasts:
Mahia Spit surfForecast / Gisborne and Mahia / New Zealand
48hr Weather and Surf, issued 11 am Sunday 17 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
15.8° C
(Which is slightly cooler than normal)How big are the waves at Mahia Spit today?
The current surf forecast for Mahia Spit at 6PM is: 0.4m 10s primary swell from a East-northeast direction (forecast issued at 11:00am May 17). An open ocean swell of 0.8m 11s is not directed at the surf break, a second open ocean swell of 1.3m 7s 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 May) | 1.5ft (0.5m) | 10s |
| Afternoon (17 May) | 1.5ft (0.4m) | 10s |
| Evening (17 May) | 1.5ft (0.4m) | 10s |
Table - waves today at Mahia Spit. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 11mm), heaviest on Sun night. Very mild (max 14°C on Sun morning, min 11°C on Tue night). Winds decreasing (fresh winds from the SSE on Sun morning, calm by Mon night). | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 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 | 12 AM | 3 AM | 6 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 10 | E 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | E 10 | ENE 10 | SE 7 | ENE 9 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 6 | ESE 6 | E 9 | E 5 | E 9 | E 9 | E 9 | E 9 | |
51 | 51 | 33 | 33 | 32 | 31 | 30 | 31 | 88 | 29 | 91 | 79 | 109 | 74 | 80 | 80 | 57 | 42 | 28 | 19 | 15 | 15 | 14 | 14 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | glassy | off | glassy | glassy | glassy | cross-off | off | off | cross-off | glassy | on | on | cross-on | cross-on | cross-on | |
High Tide | 6:05PM1.65m | 6:28AM1.60m | 7:01PM1.71m | 7:24AM1.62m | 7:56PM1.74m | |||||||||||||||||||
Low Tide | 11:49AM0.02m | 00:23AM0.06m | 12:44PM-0.01m | 1:20AM0.02m | 1:40PM-0.03m | 2:17AM0.01m | ||||||||||||||||||
 |  |  |  |  | | |  |  | | |  |  | | | | |  | | | | | | | |
 | 7:05 | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 |
 | — | — | 5:02 | — | — | — | — | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | 5:00 |
1 | — | — | 1 | — | 1 | 2 | 1 | 1 | 1 | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 12 | 13 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 11 |
8 | 8 | 9 | 8 | 9 | 9 | 11 | 10 | 11 | 13 | 13 | 13 | 13 | 12 | 10 | 11 | 10 | 11 | 12 | 11 | 10 | 9 | 9 | 8 | |
Swell 1 Height (m) Direction Period (s) | SSE 11 | S 11 | S 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 7 | SSE 9 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 6 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SE 9 | SE 9 |
 kJ | 217 | 160 | 154 | 153 | 184 | 139 | 331 | 346 | 88 | 226 | 91 | 79 | 76 | 74 | 80 | 80 | 57 | 135 | 132 | 100 | 106 | 92 | 83 | 81 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | ENE 10 | ENE 10 | ENE 10 | S 17 | S 16 | SSE 16 | S 10 | ENE 9 | S 9 | S 9 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | ESE 6 | E 5 | E 5 | ENE 5 | ENE 5 | E 9 | E 9 |
| kJ | 51 | 51 | 33 | 33 | 32 | 149 | 131 | 83 | 92 | 29 | 61 | 83 | 68 | 72 | 77 | 77 | 100 | 42 | 21 | 19 | 8 | 8 | 14 | 14 |
Swell 3 Height (m) Direction Period (s) | S 24 | S 22 | S 21 | S 16 | SSE 16 | ENE 10 | E 10 | ENE 10 | E 9 | S 15 | ENE 9 | E 10 | ENE 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | NE 5 | ENE 5 |
| kJ | 11 | 9 | 36 | 45 | 86 | 31 | 30 | 31 | 28 | 38 | 29 | 28 | 31 | 31 | 31 | 30 | 30 | 30 | 28 | 15 | 15 | 15 | 6 | 4 |
Wind waves Height (m) Direction Period (s) | SSE 7 | SSE 6 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 10 | SSE 10 | — | — | — | — | SE 6 | — | — | ESE 6 | ESE 6 | — | — | — | — | — | — | — |
| kJ | 175 | 203 | 186 | 138 | 116 | 116 | 410 | 416 | — | — | — | — | 109 | — | — | 72 | 55 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 112 | 160 | 160 | 102 | 86 | 2 | 2 | 6 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 7 | 7 | 7 | 10 |
Best forecast wave conditions in Gisborne and Mahia | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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