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Sponge bay Surf Forecast
/ Gisborne and Mahia (37 surf breaks) /
Surf Forecasts:
Sponge bay 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
Sponge bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sponge bay sea temperature is
15.8° C
(Which is slightly cooler than normal)How big are the waves at Sponge bay today?
The current surf forecast for Sponge bay at 9AM is: 1.0m 6s primary swell from a Southeast direction and 0.4m 10s secondary swell from a South-southeast 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) | 3.5ft (1.0m) | 6s |
| Afternoon (18 May) | 3ft (0.9m) | 6s |
| Evening (18 May) | 3.5ft (1.1m) | 6s |
Table - waves today at Sponge bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Mon morning. Very mild (max 15°C on Wed afternoon, 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 16 | SSE 10 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 6 | ESE 6 | ESE 6 | SE 6 | SE 6 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | |
87 | 416 | 67 | 56 | 56 | 56 | 95 | 82 | 64 | 57 | 57 | 41 | 37 | 31 | 101 | 67 | 65 | 51 | 52 | 45 | 36 | 37 | 27 | 19 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | cross-on | cross-on | on | on | glassy | glassy | glassy | glassy | glassy | cross | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | |
High Tide | 6:21AM2.01m | 6:55PM2.10m | 7:17AM2.00m | 7:52PM2.11m | 8:17AM1.97m | 8:51PM2.09m | ||||||||||||||||||
Low Tide | 00:13AM0.45m | 12:39PM0.34m | 1:12AM0.47m | 1:34PM0.37m | 2:14AM0.50m | 2:30PM0.43m | ||||||||||||||||||
 | |  | | | | | |  | |  |  | |  |  | | | |  | | | | | | |
 | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | 7:07 |
 | — | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:00 | — | — | 5:00 |
1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 10 | 10 | 10 | 13 | 15 | 13 | 12 | 11 |
10 | 10 | 12 | 11 | 11 | 12 | 12 | 13 | 11 | 13 | 13 | 12 | 11 | 11 | 10 | 9 | 7 | 8 | 7 | 11 | 11 | 10 | 9 | 7 | |
Swell 1 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 6 | ESE 6 | ESE 6 | SE 6 | SE 6 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 |
 kJ | 60 | 60 | 67 | 56 | 56 | 56 | 49 | 49 | 64 | 57 | 57 | 41 | 32 | 31 | 101 | 67 | 65 | 51 | 52 | 45 | 36 | 37 | 27 | 19 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | ENE 4 | ENE 4 | ENE 4 |
| kJ | 57 | 56 | 37 | 35 | 34 | 34 | 34 | 36 | 39 | 38 | 38 | 38 | 37 | 23 | 15 | 14 | 6 | 6 | 6 | 6 | 6 | 2 | 5 | 3 |
Swell 3 Height (m) Direction Period (s) | SSE 16 | SSE 16 | SSE 16 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | SE 12 | SSE 12 | SSE 11 | ESE 14 | ESE 14 | E 5 | ESE 13 | E 8 | E 8 | E 8 |
| kJ | 87 | 49 | 47 | 16 | 16 | 15 | 16 | 17 | 17 | 17 | 17 | 16 | 15 | 15 | 6 | 14 | 13 | 20 | 20 | 2 | 17 | 6 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | — | SSE 10 | — | — | — | — | SE 6 | SE 6 | E 5 | — | — | — | — | — | — | — | — | — | — | — | ENE 5 | NE 4 | NE 4 | NNE 4 |
| kJ | — | 416 | — | — | — | — | 95 | 82 | 33 | — | — | — | — | — | — | — | — | — | — | — | 4 | 10 | 10 | 22 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 42 | 43 | 44 | 43 | 36 | 10 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 | 8 | 3 | 3 |
Best forecast wave conditions in Gisborne and Mahia | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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