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 6 am Saturday 27 Dec 2025 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
17.6° 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 12PM is: 0.2m 6s primary swell from a East-northeast direction and 0.1m 10s secondary swell from a East direction (forecast issued at 06:00am December 27). The wind direction is predicted to be glassy.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Dec) | 1ft (0.3m) | 6s |
| Afternoon (27 Dec) | 1.5ft (0.5m) | 3s |
| Evening (27 Dec) | 1.5ft (0.4m) | 3s |
Table - waves today at Sumner Bar. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 27 | Sunday 28 | Monday 29 | Tue 30 | |||||||||||||||||||||
| 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 | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 4 | 6 | 6 | 6 | 10 | 9 | 9 | 9 | 9 | 9 | 7 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 26 | 4 | 5 | 3 | 9 | 9 | 3 | 8 | 8 | 8 | 5 | 14 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 65 | 54 | 53 | 18 | 7 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | on | cross- on | cross- on | cross- on | off | off | off | glass | on | cross- on | cross- on | cross- on | on | glass | glass | glass | cross- on | cross- on | cross- on | cross | cross- off |
High Tide / height (m) | 10:43AM 2.15 | 11:09PM 2.11 | 11:35AM 2.18 | 12:00AM 2.18 | 12:28PM 2.22 | 12:54AM 2.26 | ||||||||||||||||||
Low Tide / height (m) | 4:21AM 0.54 | 4:58PM 0.53 | 5:12AM 0.55 | 5:50PM 0.51 | 6:08AM 0.55 | 6:43PM 0.48 | ||||||||||||||||||
Saturday 27 | Sunday 28 | Monday 29 | Tue 30 | |||||||||||||||||||||
| Sunrise | - | 5:46 | - | - | - | - | - | - | - | 5:47 | - | - | - | - | - | - | - | 5:48 | - | - | - | - | - | - |
| Sunset | - | - | - | - | - | 9:12 | - | - | - | - | - | - | - | 9:12 | - | - | - | - | - | - | - | 9:12 | - | - |
 |  |  | | | |  |  | |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 11 | 16 | 18 | 16 | 15 | 14 | 12 | 11 | 12 | 14 | 15 | 15 | 15 | 14 | 13 | 12 | 12 | 15 | 14 | 15 | 14 | 13 | 12 |
| Feels °C (?) | 8 | 8 | 13 | 16 | 12 | 11 | 11 | 9 | 9 | 10 | 13 | 13 | 12 | 13 | 13 | 11 | 11 | 11 | 14 | 11 | 12 | 11 | 11 | 11 |
- 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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