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Surf Forecasts:
Mahia Spit surfForecast / Gisborne and Mahia / New Zealand
48hr Weather and Surf, issued 11 am Thursday 18 Sep 2025 NZST
How big are the waves at Mahia Spit today?
The current surf forecast for Mahia Spit at 4PM is: 0.3m 4s primary swell from a North-northeast direction (forecast issued at 11:00am September 18). An open ocean swell of 0.4m 10s is not directed at the surf break, a second open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 1ft (0.3m) | 10s |
| Afternoon (18 Sep) | 1ft (0.3m) | 4s |
| Evening (18 Sep) | 1ft (0.3m) | 4s |
Table - waves today at Mahia Spit. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| 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 | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 4 | 4 | 3 | 4 | 5 | 5 | 5 | 6 | 10 | 14 | 8 | 9 | 9 | 14 | 9 | 9 | 13 | 3 | 4 | 4 | 5 | 5 | 3 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 14 | 4 | 3 | 4 | 3 | 4 | 2 | 1 | 4 | 9 | 8 | 0 | 0 | 0 | 7 | 0 | 0 | 3 | 10 | 39 | 24 | 17 | 14 | 8 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 2:46PM 1.48 | 3:12AM 1.38 | 3:42PM 1.47 | 4:08AM 1.37 | 4:34PM 1.46 | 5:00AM 1.37 | ||||||||||||||||||
Low Tide / height (m) | 8:26AM 0.19 | 9:04PM 0.22 | 9:23AM 0.21 | 10:00PM 0.23 | 10:17AM 0.22 | 10:53PM 0.22 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| Sunrise | 6:05 | - | - | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:01 | - | - | - | - |
 |  | | |  |  | |  |  |  | | |  | | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 2 | 2 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 19 | 19 | 17 | 15 | 13 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 8 | 8 | 9 | 11 | 11 | 11 | 10 | 10 | 9 |
| Feels °C (?) | 12 | 14 | 15 | 14 | 10 | 6 | 5 | 2 | 2 | 0 | 0 | 2 | 4 | 5 | 5 | 4 | 5 | 3 | 3 | 3 | 4 | 5 | 4 | 3 |
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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 Gisborne and Mahia
The wind is still cross-off at Mahia Spit (fresh winds from the WNW at Mahia Automatic Weather Station 4 km from Mahia Spit). 1.0m 4s local chop from the N to make surfable waves.
1 h 34 min ago
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