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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 Saturday 30 Aug 2025 NZST
How big are the waves at Sumner Bar today?
The current surf forecast for Sumner Bar at 8AM is: 0.7m 11s primary swell from a East direction and 0.4m 3s secondary swell from a Southeast direction (forecast issued at 05:00am August 30). An open ocean swell of 0.1m 14s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Aug) | 2.5ft (0.7m) | 11s |
| Afternoon (30 Aug) | 2ft (0.6m) | 10s |
| Evening (30 Aug) | 1.5ft (0.5m) | 10s |
Table - waves today at Sumner Bar. (Swell directed towards the surf break)
Saturday 30 | Sunday 31 | Monday 01 | Tue 02 | |||||||||||||||||||||
| 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 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 13 | 10 | 10 | 10 | 10 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 119 | 95 | 112 | 128 | 92 | 85 | 75 | 71 | 55 | 80 | 37 | 112 | 23 | 27 | 22 | 38 | 24 | 26 | 24 | 27 | 38 | 51 | 44 | 39 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | on | cross- on | on | cross- on | cross- off | off | glass | cross- on | cross- on | cross- on | cross- off | glass | cross | cross- on | cross- off | glass | cross- on | cross | cross- off | cross- off | off | glass |
High Tide / height (m) | 9:33AM 2.15 | 9:57PM 2.06 | 10:15AM 2.14 | 10:42PM 2.04 | 11:00AM 2.13 | 11:27PM 2.03 | ||||||||||||||||||
Low Tide / height (m) | 3:11AM 0.72 | 3:39PM 0.80 | 3:58AM 0.78 | 4:29PM 0.83 | 4:45AM 0.81 | 5:20PM 0.83 | ||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 01 | Tue 02 | |||||||||||||||||||||
| Sunrise | - | - | 7:00 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:56 | - | - | - | - | - |
| Sunset | - | - | - | - | 5:59 | - | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:00 | - | - |
 |  |  |  |  | | | |  | | | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 4 | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 7 | 8 | 9 | 12 | 11 | 10 | 8 | 7 | 7 | 7 | 8 | 7 | 5 | 4 | 4 | 4 | 5 | 6 | 14 | 15 | 12 | 9 | 7 |
| Feels °C (?) | 6 | 5 | 5 | 5 | 9 | 6 | 6 | 4 | 5 | 4 | 3 | 5 | 3 | 3 | 1 | 1 | 1 | 2 | 3 | 8 | 9 | 8 | 5 | 5 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Canterbury
Recent clean conditions at Sumner Bar have likely become affected by the arrival of onshore winds (light winds from the NE at Taylor's Mistake 3 km from Sumner Bar). 0.9m 11s groundswell from the ENE with a 0.3m 3s local chop from the SE. 2 swells combining to make bigger set waves.
1 h 21 min ago
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