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Surf Forecasts:
Happy Jacks surfForecast / Gisborne and Mahia / New Zealand
48hr Weather and Surf, issued 5 pm 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
15.4° C
(Which is slightly cooler than normal)How big are the waves at Happy Jacks today?
The current surf forecast for Happy Jacks at 11PM is: 1.2m 6s primary swell from a Southeast direction and 1.0m 6s secondary swell from a Southeast direction, 0.6m 10s secondary swell from a South-southeast direction (forecast issued at 05:00pm May 18). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | - | - |
| 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 3mm), mostly falling on Mon night. Very mild (max 15°C on Wed afternoon, min 10°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 9 AM | 12 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 6 | S 9 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 10 | SE 10 | SSE 9 | SE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 7 | SE 7 | ESE 12 | |
85 | 83 | 74 | 96 | 80 | 80 | 75 | 240 | 181 | 100 | 138 | 71 | 71 | 70 | 70 | 64 | 47 | 49 | 43 | 25 | 22 | 21 | 13 | 14 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | glassy | glassy | glassy | glassy | glassy | cross-on | on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | glassy | glassy | |
High Tide | 6:51PM1.97m | 7:22AM1.84m | 7:47PM1.99m | 8:20AM1.83m | 8:44PM1.97m | 9:18AM1.80m | ||||||||||||||||||
Low Tide | 12:37PM0.16m | 1:11AM0.14m | 1:32PM0.13m | 2:10AM0.10m | 2:28PM0.09m | 3:09AM0.08m | ||||||||||||||||||
 |  | |  | | | | |  |  | | | | | | | | | | | | | | | |
 | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:09 | — | — |
 | 5:01 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | — | — | 5:00 |
— | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 13 | 13 | 12 | 13 | 13 | 13 | 14 | 14 | 13 | 12 | 12 | 11 | 10 | 11 | 13 | 15 | 13 | 12 | 11 | 11 | 11 | 12 | 14 |
11 | 12 | 13 | 11 | 13 | 12 | 12 | 13 | 12 | 11 | 10 | 9 | 8 | 8 | 8 | 9 | 11 | 9 | 9 | 8 | 8 | 8 | 10 | 13 | |
Swell 1 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 10 | SE 10 | SSE 9 | SE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | NE 4 | NE 4 | SSE 7 | NE 4 | SSE 7 |
 kJ | 85 | 74 | 74 | 72 | 80 | 80 | 68 | 240 | 181 | 100 | 138 | 71 | 71 | 70 | 70 | 64 | 47 | 49 | 43 | 11 | 9 | 21 | 7 | 9 |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | E 10 | E 9 | E 5 | E 9 | E 5 | E 5 | E 5 | E 9 | E 8 | E 8 | E 8 | E 8 | SSE 8 | SSE 8 | ENE 4 | SE 7 | E 8 |
| kJ | 61 | 83 | 68 | 72 | 77 | 77 | 75 | 30 | 16 | 13 | 15 | 8 | 7 | 4 | 13 | 13 | 13 | 12 | 13 | 25 | 22 | 7 | 13 | 6 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 10 | ENE 10 | E 10 | E 10 | E 10 | E 10 | E 13 | E 13 | E 9 | SSE 12 | E 9 | E 9 | E 9 | E 5 | E 14 | E 13 | E 13 | E 13 | E 8 | E 9 | E 9 | SSE 9 | ESE 12 |
| kJ | 29 | 30 | 31 | 31 | 31 | 30 | 30 | 3 | 13 | 15 | 15 | 15 | 14 | 14 | 4 | 15 | 14 | 14 | 14 | 6 | 6 | 6 | 7 | 14 |
Wind waves Height (m) Direction Period (s) | — | — | — | SE 6 | — | ESE 6 | E 5 | — | — | — | — | — | — | — | — | NE 5 | NE 3 | NE 4 | NE 4 | NNE 4 | NNW 3 | — | NNE 4 | NE 4 |
| kJ | — | — | — | 96 | — | 43 | 25 | — | — | — | — | — | — | — | — | 5 | 4 | 14 | 16 | 22 | 1 | — | 10 | 6 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 | 7 | 7 | 7 | 7 | 9 | 10 | 10 | 10 | 10 | 10 | 44 | 72 | 87 | 15 | 15 |
Best forecast wave conditions in Gisborne and Mahia | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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