Blacks Reef surf break

Blacks Reef surfForecast / Gisborne and Mahia / New Zealand

information circle12 Day Weather and Surf, issued 11 am Monday 15 Sep 2025 NZST
Forecast 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
13.1° C
(Which is slightly cooler than normal)


Best Forecast Surf Conditions for Blacks Reef this week:

The surf forecast for Blacks Reef over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 15) at 6PM. The primary swell is predicted to be 1.8m and 10s period with a secondary swell of 0.1m and 11s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Blacks Reef in the next 12 days are 3.0m 10s and forecast to arrive on Friday (Sep 19) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Saturday (Sep 20) at 6PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Mon 15th Sep)6ft (1.8m) 10s
Best Surf 6PM (Mon 15th Sep)6ft (1.8m) 10s
Most Powerful 9PM (Fri 19th Sep)10ft (3.0m) 10s

Table - best surf conditions forecast for Blacks Reef over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 20°C on Wed morning, min 11°C on Mon morning). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Fri morning. Very mild (max 19°C on Thu morning, min 6°C on Fri night). Winds decreasing (fresh winds from the SSW on Fri morning, light winds from the W by Fri night).

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
4
3
1
0
1
2
2
0
0
0
0
0
0
0
3
2
2
2
1
1
0
Swell
Height Map
Wave Height (m) & direction (?)
2.4
S
2
S
1.5
S
1.1
S
1.1
S
0.6
S
0.8
S
0.6
S
0.6
S
0.5
S
1.1
WNW
0.4
SSE
2.5
S
3
S
2.3
S
1.6
S
1.2
S
1.2
S
1
S
0.7
S
0.4
S
Period(s) (?)111010991511910104157810101012111110
Wave
Graph
(?)Metric surfscale
Energy kJ (?)136785743119818915515764715144716251081110249227739323310833
Wind
(km/h)
5
NW
15
ENE
15
NW
20
WSW
5
SSE
10
NNW
5
NNW
15
WNW
30
NW
30
NW
15
W
15
WNW
35
SSW
30
SSW
5
W
5
N
15
NE
15
NNW
15
NW
15
NNW
20
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
on
cross-
on
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
on
crossononcrossoffcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
11:42AM
1.80
12:14AM
1.69
12:43PM
1.75
1:12AM
1.62
1:42PM
1.70
2:10AM
1.57
2:37PM
1.66
3:06AM
1.52
3:30PM
1.62
3:59AM
1.49
4:21PM
1.60
4:51AM
1.50
5:11PM
1.58
Low Tide
/ height (m)
6:06PM
0.18
6:26AM
0.19
7:05PM
0.20
7:23AM
0.20
8:03PM
0.21
8:20AM
0.22
8:57PM
0.22
9:17AM
0.23
9:50PM
0.24
10:11AM
0.23
10:42PM
0.25
11:02AM
0.25
11:31PM
0.28
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Sunrise6:09--6:07--6:07--6:05--6:03--6:01--6:00--
Sunset-5:58--5:59--6:00--6:00--6:01--6:02--6:02-
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
clear
light rain
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
Rain (mm)
------------2--------
Temp. °C14151217171520201519191491110151712182015
Feels °C (?)131191415131616913151013612128131612
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Gisborne and Mahia

  1. weather stationWind Update Cross-off wind 9 km from Wainui Beach - Stockroute has swung offshore (light winds from the NW at Gisborne Airport). 2.1m 11s groundswell from the S to make surfable waves.

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Actual: 48 min ago

20 km/h
N
Offshore
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Blacks Reef surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Blacks Reef Surf forecast

The above surf forecast table for Blacks Reef provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Blacks Reef can be found by selecting the local surf guide option on the grey menu. Our Blacks Reef surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Blacks Reef) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Blacks Reef may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Blacks Reef is 50 km (31 miles) from the city of Gisborne. If you plan a holiday in Gisborne and Mahia, look for hotels and other accommodation in Gisborne. Gisborne has rooms for a wide range of budgets as well as car hire and transport links.

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