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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 pm Tuesday 12 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
15.8° C
(Which is slightly cooler than normal)How big are the waves at Blacks Reef today?
The current surf forecast for Blacks Reef at 2AM is: 2.0m 15s primary swell from a South direction and 0.6m 9s secondary swell from a East direction, 0.9m 4s secondary swell from a South-southwest direction (forecast issued at 11:00pm May 12). The wind direction is predicted to be cross-onshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 7.5ft (2.3m) | 15s |
| Afternoon (13 May) | 10ft (3.0m) | 14s |
| Evening (13 May) | 10ft (3.0m) | 13s |
Table - waves today at Blacks Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 9mm), mostly falling on Wed night. Very mild (max 13°C on Tue night, min 11°C on Tue night). Winds increasing (light winds from the SSW on Tue night, fresh winds from the SSW by Wed afternoon). | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | ||||||||||||||||||||||
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 | 9 AM | 12 PM | 3 PM | 6 PM | |
Swell Height Map |  |    |    |    | ||||||||||||||||||||
S 12 | S 16 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 14 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 11 | S 10 | S 10 | S 9 | S 9 | S 16 | S 15 | S 14 | |
649 | 1772 | 1963 | 1735 | 2342 | 2578 | 3048 | 3273 | 2993 | 3020 | 2764 | 2466 | 2235 | 1749 | 1505 | 1194 | 917 | 710 | 524 | 434 | 373 | 623 | 904 | 1649 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on | on | on | on | on | |
High Tide | 1:51AM1.54m | 2:16PM1.51m | 2:42AM1.60m | 3:10PM1.60m | 3:35AM1.68m | 4:03PM1.71m | ||||||||||||||||||
Low Tide | 7:33PM0.37m | 8:04AM0.31m | 8:29PM0.34m | 8:55AM0.29m | 9:25PM0.31m | 9:48AM0.27m | ||||||||||||||||||
 |  | |  |  |  | | |  | | |  |  | | | | | | | | | | | | |
 | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — | — | 7:03 | — | — | — | — |
 | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:06 | — | — | — | — | — | — | — | 5:05 | — |
— | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | 1 | 1 | — | — | — | — | |
Temp °C | 13 | 12 | 11 | 12 | 13 | 13 | 13 | 13 | 12 | 13 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
11 | 10 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 9 | 8 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | |
Swell 1 Height (m) Direction Period (s) | S 12 | S 16 | S 15 | S 15 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | S 13 | S 13 | E 9 | S 18 | S 17 | S 16 | S 16 | E 9 | S 10 | S 9 | S 9 | S 9 | S 15 | S 14 |
 kJ | 649 | 1772 | 1963 | 1735 | 61 | 41 | 42 | 42 | 43 | 27 | 2764 | 2466 | 26 | 150 | 145 | 133 | 127 | 25 | 524 | 434 | 373 | 325 | 904 | 1649 |
Swell 2 Height (m) Direction Period (s) | S 16 | E 10 | E 9 | E 9 | S 26 | S 24 | S 24 | SSW 22 | S 22 | E 9 | E 9 | E 9 | SSW 18 | E 9 | E 9 | E 9 | E 9 | ENE 9 | E 9 | S 15 | S 17 | S 16 | S 9 | E 10 |
| kJ | 333 | 65 | 62 | 61 | 13 | 45 | 44 | 93 | 145 | 45 | 27 | 26 | 62 | 26 | 26 | 26 | 25 | 28 | 25 | 115 | 291 | 623 | 280 | 31 |
Swell 3 Height (m) Direction Period (s) | E 10 | ENE 10 | — | S 26 | SE 16 | E 11 | SE 16 | SE 15 | — | SE 15 | E 9 | SSW 20 | — | SE 14 | — | — | — | — | ENE 9 | E 9 | E 9 | E 10 | E 10 | — |
| kJ | 90 | 96 | — | 13 | 10 | 21 | 10 | 9 | — | 8 | 43 | 75 | — | 7 | — | — | — | — | 28 | 26 | 28 | 29 | 30 | — |
Wind waves Height (m) Direction Period (s) | — | — | SSW 4 | SSW 4 | S 15 | S 14 | S 14 | S 14 | S 13 | S 14 | — | — | S 13 | S 12 | S 12 | S 12 | S 11 | S 10 | — | — | — | — | — | — |
| kJ | — | — | 26 | 34 | 2342 | 2578 | 3048 | 3273 | 2993 | 3020 | — | — | 2235 | 1749 | 1505 | 1194 | 917 | 710 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 14 | 3 | 3 | 9 | 41 | 73 | 93 | 109 | 79 | 82 | 79 | 79 | 73 | 89 | 88 | 157 | 89 | 73 | 9 | 9 | 14 | 14 | 14 |
Best forecast wave conditions in Gisborne and Mahia | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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