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Surf Forecasts:
Happy Jacks surfForecast / Gisborne and Mahia / New Zealand
48hr Weather and Surf, issued 5 am Monday 18 May 2026 NZSTForecast update in hr min s Forecast update imminent
Happy Jacks surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Happy Jacks sea temperature is
15.6° C
(Which is slightly cooler than normal)How big are the waves at Happy Jacks today?
The current surf forecast for Happy Jacks at 9AM is: 1.6m 10s primary swell from a South-southeast direction and 1.1m 6s secondary swell from a Southeast direction, 0.7m 10s secondary swell from a South direction (forecast issued at 05:00am May 18). The wind direction is predicted to be cross-onshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 5ft (1.6m) | 10s |
| Afternoon (18 May) | 3.5ft (1.1m) | 6s |
| Evening (18 May) | 3.5ft (1.0m) | 6s |
Table - waves today at Happy Jacks. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Mon morning. Very mild (max 14°C on Mon morning, min 10°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SSE 10 | SSE 10 | SSE 10 | SE 6 | SE 6 | S 9 | SE 6 | SE 6 | SE 6 | SE 6 | SE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 8 | |
133 | 416 | 463 | 88 | 85 | 83 | 74 | 82 | 89 | 80 | 273 | 135 | 132 | 113 | 94 | 92 | 71 | 70 | 70 | 64 | 47 | 49 | 43 | 24 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-on | cross | cross-off | glassy | glassy | glassy | glassy | cross-off | glassy | glassy | on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | |
High Tide | 6:24AM1.83m | 6:51PM1.97m | 7:22AM1.84m | 7:47PM1.99m | 8:20AM1.83m | 8:44PM1.97m | ||||||||||||||||||
Low Tide | 00:13AM0.18m | 12:37PM0.16m | 1:11AM0.14m | 1:32PM0.13m | 2:10AM0.10m | 2:28PM0.09m | ||||||||||||||||||
 |  |  | | |  |  | | | |  |  | | | | | | | | | | | | | |
 | — | 7:05 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | 7:09 |
 | — | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — | 5:00 |
1 | 1 | 1 | 1 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 13 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 12 | 11 | 10 | 10 | 11 | 13 | 14 | 13 | 13 | 11 |
10 | 11 | 13 | 13 | 13 | 12 | 13 | 11 | 11 | 11 | 11 | 12 | 11 | 11 | 9 | 9 | 7 | 7 | 8 | 10 | 10 | 9 | 10 | 7 | |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 10 | SE 6 | SE 6 | SE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | NE 4 |
 kJ | 133 | 100 | 91 | 88 | 85 | 74 | 74 | 72 | 89 | 80 | 273 | 135 | 132 | 113 | 94 | 92 | 71 | 70 | 70 | 64 | 47 | 49 | 43 | 12 |
Swell 2 Height (m) Direction Period (s) | S 16 | SSE 10 | S 10 | S 9 | S 9 | S 9 | SSE 9 | E 10 | SSE 10 | SSE 10 | E 10 | E 5 | E 5 | E 5 | E 5 | ENE 5 | ENE 5 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | SSE 8 |
| kJ | 131 | 131 | 94 | 87 | 61 | 83 | 68 | 31 | 77 | 77 | 30 | 19 | 19 | 7 | 7 | 8 | 4 | 14 | 13 | 13 | 13 | 12 | 13 | 24 |
Swell 3 Height (m) Direction Period (s) | ENE 10 | SSE 16 | E 10 | E 9 | ENE 9 | E 10 | E 10 | S 16 | E 10 | E 10 | E 13 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 5 | ENE 5 | ENE 5 | E 13 | E 13 | E 13 | E 8 |
| kJ | 31 | 83 | 28 | 28 | 29 | 28 | 30 | 5 | 31 | 30 | 4 | 30 | 16 | 15 | 15 | 15 | 14 | 4 | 4 | 4 | 14 | 14 | 14 | 6 |
Wind waves Height (m) Direction Period (s) | SE 7 | SSE 10 | SSE 10 | — | — | — | — | SE 6 | E 5 | — | — | — | — | — | ENE 5 | — | — | — | — | NNE 2 | NE 3 | NE 4 | NE 4 | NNE 4 |
| kJ | 103 | 416 | 463 | — | — | — | — | 82 | 33 | — | — | — | — | — | 4 | — | — | — | — | 1 | 4 | 18 | 17 | 22 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 9 | 7 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 7 | 7 | 7 | 7 | 10 | 10 | 10 | 10 | 10 | 10 | 32 |
Best forecast wave conditions in Gisborne and Mahia | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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