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Sumner Bar Surf Forecast
/ Canterbury (28 surf breaks) /
Surf Forecasts:
Sumner Bar surfForecast / Canterbury / New Zealand
48hr Weather and Surf, issued 5 am Monday 20 Apr 2026 NZSTForecast 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
15.0° C
(Which is 2.7°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 9AM is: 1.3m 6s primary swell from a Southeast direction and 0.4m 10s secondary swell from a East-northeast direction (forecast issued at 05:00am April 20). An open ocean swell of 0.2m 12s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Apr) | 4.5ft (1.3m) | 6s |
| Afternoon (20 Apr) | 3.5ft (1.1m) | 8s |
| Evening (20 Apr) | 3.5ft (1.1m) | 8s |
Table - waves today at Sumner Bar. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 20 | Tuesday 21 | Wednesday 22 | Thu 23 | |||||||||||||||||||||
| 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 6 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 78 | 55 | 136 | 152 | 125 | 145 | 151 | 197 | 176 | 180 | 173 | 220 | 276 | 235 | 295 | 301 | 294 | 312 | 346 | 331 | 339 | 647 | 276 | 231 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | off | off | off | off | off | off | off | off | off | off |
High Tide / height (m) | 6:34AM 2.42 | 7:04PM 2.60 | 7:35AM 2.40 | 8:01PM 2.60 | 8:35AM 2.38 | 8:58PM 2.55 | ||||||||||||||||||
Low Tide / height (m) | 12:20AM 0.38 | 12:43PM 0.36 | 1:20AM 0.39 | 1:40PM 0.36 | 2:20AM 0.40 | 2:38PM 0.38 | ||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thu 23 | |||||||||||||||||||||
| Sunrise | - | - | 7:07 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - | - | - | 7:09 | - | - | - | - | - |
| Sunset | - | - | - | - | 5:47 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:44 | - | - | - |
 |  |  | |  | |  | | | |  | | | | | |  | | | |  | | | | |
Rain (mm) | - | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | 1 | 1 | 1 | 3 | 1 |
| Temp. °C | 12 | 12 | 11 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 7 | 10 | 10 | 9 | 9 | 8 | 7 | 8 | 8 | 9 | 9 | 9 | 8 | 8 |
| Feels °C (?) | 8 | 7 | 6 | 4 | 3 | 4 | 3 | 4 | 3 | 3 | 3 | 5 | 4 | 4 | 5 | 3 | 2 | 3 | 3 | 4 | 4 | 4 | 3 | 3 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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