Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Sponge bay surfForecast / Gisborne and Mahia / New Zealand
48hr Weather and Surf, issued 12 pm Monday 29 Dec 2025 NZDTForecast 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
19.3° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Sponge bay today?
The current surf forecast for Sponge bay at 5PM is: 2.1m 7s primary swell from a East-southeast direction and 0.2m 10s secondary swell from a South direction (forecast issued at 12:00pm December 29). An open ocean swell of 0.1m 13s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Dec) | 2ft (0.6m) | 4s |
| Afternoon (29 Dec) | 5ft (1.6m) | 6s |
| Evening (29 Dec) | 8ft (2.4m) | 8s |
Table - waves today at Sponge bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 29 | Tuesday 30 | Wednesday 31 | Thursday 01 | |||||||||||||||||||||
| 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 4 | 6 | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 8 | 8 | 7 | 7 | 8 | 8 | 8 | 7 | 9 | 9 | 7 | 8 | 10 | 9 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 12 | 91 | 360 | 727 | 1114 | 1020 | 364 | 285 | 279 | 256 | 256 | 210 | 155 | 124 | 103 | 98 | 17 | 21 | 41 | 19 | 19 | 18 | 17 | 8 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross | cross | off | off | glass | cross- off | cross | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off |
High Tide / height (m) | 1:46PM 1.96 | 2:12AM 1.90 | 2:30PM 1.95 | 3:02AM 1.92 | 3:19PM 1.92 | 3:53AM 1.93 | ||||||||||||||||||
Low Tide / height (m) | 7:28AM 0.53 | 8:08PM 0.46 | 8:16AM 0.51 | 8:54PM 0.40 | 9:09AM 0.51 | 9:42PM 0.38 | ||||||||||||||||||
Monday 29 | Tuesday 30 | Wednesday 31 | Thursday 01 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:45 |
| Sunset | - | - | - | 8:34 | - | - | - | - | - | - | - | 8:35 | - | - | - | - | - | - | - | 8:35 | - | - | - | - |
 |  | | |  |  | | | |  | |  |  | | | | | | | |  | |  | | |
Rain (mm) | 4 | 13 | 15 | 15 | 13 | 1 | 1 | 1 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 15 | 16 | 17 | 18 | 18 | 17 | 18 | 18 | 20 | 21 | 22 | 20 | 17 | 17 | 17 | 20 | 23 | 24 | 22 | 20 | 18 | 17 | 17 |
| Feels °C (?) | 12 | 9 | 9 | 10 | 14 | 19 | 18 | 20 | 17 | 20 | 21 | 22 | 20 | 16 | 17 | 17 | 20 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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