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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 Wednesday 20 May 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
15.1° C
(Which is 1.1°C colder than average for this time of year)How big are the waves at Blacks Reef today?
The current surf forecast for Blacks Reef at 8PM is: 0.5m 8s primary swell from a South direction and 0.2m 8s secondary swell from a East direction (forecast issued at 11:00am May 20). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 2ft (0.6m) | 9s |
| Afternoon (20 May) | 2ft (0.6m) | 8s |
| Evening (20 May) | 1.5ft (0.5m) | 8s |
Table - waves today at Blacks Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Thu afternoon, min 9°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSE 9 | SSE 8 | SSE 8 | S 8 | S 8 | S 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 9 | S 14 | S 13 | S 12 | S 12 | SSE 9 | S 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | S 9 | |
58 | 55 | 54 | 36 | 36 | 31 | 19 | 18 | 10 | 9 | 15 | 17 | 13 | 11 | 11 | 16 | 21 | 22 | 20 | 33 | 31 | 31 | 29 | 26 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | glassy | off | cross-off | cross-off | cross-off | cross-off | glassy | glassy | glassy | cross | off | off | cross-off | cross-off | cross-off | |
High Tide | 8:20AM1.83m | 8:44PM1.97m | 9:18AM1.80m | 9:41PM1.91m | 10:13AM1.75m | 10:38PM1.84m | ||||||||||||||||||
Low Tide | 2:28PM0.09m | 3:09AM0.08m | 3:26PM0.08m | 4:06AM0.07m | 4:23PM0.08m | 5:02AM0.08m | ||||||||||||||||||
 | | |  | | | | | | | | | | | | | | | | | | | |  | |
 | 7:07 | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:11 |
 | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | 4:59 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 14 | 15 | 12 | 12 | 10 | 9 | 9 | 11 | 14 | 17 | 15 | 14 | 13 | 13 | 12 | 13 | 15 | 15 | 12 | 12 | 12 | 12 | 11 |
9 | 11 | 12 | 8 | 8 | 7 | 6 | 6 | 8 | 12 | 15 | 12 | 11 | 11 | 12 | 11 | 12 | 14 | 14 | 11 | 10 | 10 | 10 | 9 | |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 8 | SSE 8 | S 8 | S 8 | NE 5 | NE 5 | ENE 4 | SSE 7 | NE 4 | SSE 9 | NE 5 | ENE 5 | NE 5 | NE 5 | NE 5 | NE 5 | NE 8 | NE 7 | SSE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 |
 kJ | 58 | 55 | 54 | 36 | 36 | 22 | 13 | 8 | 10 | 5 | 15 | 10 | 18 | 14 | 14 | 7 | 7 | 16 | 13 | 33 | 41 | 38 | 38 | 64 |
Swell 2 Height (m) Direction Period (s) | ENE 5 | E 8 | E 8 | ESE 13 | E 8 | S 8 | SSE 8 | SSE 7 | NE 4 | SSE 7 | SE 12 | SSE 9 | SSE 9 | S 12 | SSE 9 | SSE 9 | S 11 | SSE 10 | SSE 10 | NE 7 | SSE 10 | SSE 10 | SSE 9 | SSW 5 |
| kJ | 4 | 13 | 6 | 17 | 6 | 31 | 19 | 18 | 5 | 9 | 6 | 17 | 8 | 11 | 8 | 16 | 21 | 22 | 20 | 13 | 31 | 31 | 29 | 9 |
Swell 3 Height (m) Direction Period (s) | E 9 | ESE 14 | ESE 13 | S 14 | ESE 13 | E 9 | E 8 | E 8 | E 8 | E 8 | E 9 | S 14 | S 13 | SSE 9 | S 12 | S 11 | SSE 8 | SSE 8 | SSE 8 | ENE 11 | SW 4 | SSW 5 | SSW 5 | S 9 |
| kJ | 13 | 18 | 18 | 4 | 17 | 6 | 6 | 6 | 6 | 6 | 1 | 15 | 13 | 8 | 11 | 10 | 7 | 6 | 6 | 11 | 1 | 5 | 9 | 26 |
Wind waves Height (m) Direction Period (s) | NNE 2 | NE 4 | NE 3 | ENE 4 | NE 4 | NNE 5 | NNE 5 | — | N 2 | NNW 2 | NE 4 | NE 5 | NNW 2 | NW 2 | NW 3 | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 5 | 5 | 28 | 34 | 37 | 35 | — | 1 | 1 | 7 | 31 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 55 | 10 | 16 | 97 | 269 | 171 | 9 | 10 | 16 | 19 | 19 | 10 | 16 | 265 | 55 | 55 | 9 | 55 | 9 |
Best forecast wave conditions in Gisborne and Mahia | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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