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Blacks Reef Surf Forecast
/ Gisborne and Mahia (37 surf breaks) /
Surf Forecasts:
Blacks Reef surfForecast / Gisborne and Mahia / New Zealand
48hr Weather and Surf, issued 11 am Monday 20 Apr 2026 NZSTForecast update in hr min s Forecast update imminent
Blacks Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Blacks Reef sea temperature is
16.8° C
(Which is slightly cooler than normal)How big are the waves at Blacks Reef today?
The current surf forecast for Blacks Reef at 5PM is: 0.2m 8s primary swell from a South direction and 0.4m 4s secondary swell from a Southwest direction (forecast issued at 11:00am April 20). An open ocean swell of 0.9m 9s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Apr) | 0.5ft (0.2m) | 8s |
| Afternoon (20 Apr) | 0.5ft (0.2m) | 8s |
| Evening (20 Apr) | 1.5ft (0.4m) | 4s |
Table - waves today at Blacks Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 8 | 8 | 4 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 6 | 5 | 5 | 6 | 6 | 11 | 20 | 402 | 834 | 1009 | 1403 | 1795 | 3360 | 6118 | 5405 | 4540 | 3771 | 3524 | 3289 | 3065 | 2908 | 2807 | 2739 | 2344 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | on | cross- on | on | on | on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 7:41AM 1.81 | 8:06PM 1.93 | 8:37AM 1.81 | 8:59PM 1.93 | 9:34AM 1.78 | 9:55PM 1.89 | ||||||||||||||||||
Low Tide / height (m) | 1:52PM 0.14 | 2:26AM 0.13 | 2:46PM 0.13 | 3:24AM 0.11 | 3:43PM 0.12 | 4:21AM 0.11 | ||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||||||
| Sunrise | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:34 | - | - | - | - | - | - | - | 5:31 | - | - | - | - | - | - | - | 5:30 | - | - | - | - | - |
 |  |  |  |  | |  | | | | |  | | | | |  |  | | |  | | | | |
Rain (mm) | - | 1 | - | - | 1 | 4 | 8 | 1 | - | - | - | - | 3 | 8 | 9 | 6 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 |
| Temp. °C | 17 | 17 | 17 | 15 | 15 | 14 | 13 | 13 | 14 | 13 | 13 | 14 | 14 | 12 | 12 | 11 | 12 | 13 | 12 | 12 | 12 | 12 | 12 | 12 |
| Feels °C (?) | 17 | 17 | 16 | 14 | 14 | 13 | 10 | 11 | 11 | 9 | 9 | 13 | 7 | 3 | 4 | 2 | 5 | 5 | 5 | 5 | 5 | 6 | 7 | 8 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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