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:
Sumner Bar surfForecast / Canterbury / New Zealand
48hr Weather and Surf, issued 12 am Thursday 01 Jan 2026 NZDTForecast update in hr min s Forecast update imminent
Sumner Bar surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sumner Bar sea temperature is
17.7° C
(Which is 3.8°C warmer than normal for this time of year)How big are the waves at Sumner Bar today?
The current surf forecast for Sumner Bar at 7AM is: 1.0m 9s primary swell from a East direction and 0.5m 8s secondary swell from a Northeast direction (forecast issued at 12:00am January 01). The wind direction is predicted to be glassy.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Jan) | 3.5ft (1.0m) | 8s |
| Afternoon (01 Jan) | 3ft (0.9m) | 8s |
| Evening (01 Jan) | 2.5ft (0.7m) | 8s |
Table - waves today at Sumner Bar. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 01 | Friday 02 | Saturday 03 | ||||||||||||||||||||||
| 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 | 10 AM | 1 PM | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 235 | 194 | 185 | 150 | 116 | 112 | 108 | 61 | 54 | 46 | 42 | 77 | 30 | 29 | 19 | 20 | 20 | 21 | 21 | 12 | 20 | 13 | 11 | 11 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | glass | glass | cross- off | off | glass | off | off | off | off | off | cross- off | glass | glass | off | off | off | off | off | off | off | glass |
High Tide / height (m) | 2:49AM 2.45 | 3:18PM 2.34 | 3:45AM 2.54 | 4:17PM 2.39 | 4:42AM 2.60 | 5:13PM 2.43 | ||||||||||||||||||
Low Tide / height (m) | 8:30PM 0.40 | 9:10AM 0.46 | 9:25PM 0.36 | 10:06AM 0.38 | 10:23PM 0.32 | 11:03AM 0.32 | ||||||||||||||||||
Thursday 01 | Friday 02 | Saturday 03 | ||||||||||||||||||||||
| Sunrise | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:52 | - | - | - | - |
| Sunset | - | - | - | - | - | - | - | 9:13 | - | - | - | - | - | - | - | 9:13 | - | - | - | - | - | - | - | 9:13 |
 |  | |  | | |  |  | | | | | | | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 15 | 15 | 16 | 18 | 18 | 18 | 16 | 15 | 15 | 15 | 15 | 14 | 15 | 14 | 13 | 13 | 12 | 12 | 13 | 13 | 15 | 15 |
| Feels °C (?) | 13 | 12 | 13 | 15 | 16 | 17 | 17 | 18 | 15 | 14 | 14 | 14 | 14 | 12 | 14 | 14 | 12 | 12 | 10 | 10 | 10 | 10 | 12 | 13 |
- 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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