Blacks Reef Surf Break

Lat Long: 39.07° S 177.80° E

Blacks Reef Surf Forecast and Surf Report

Issued: 11 pm 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Blacks Reef sea temperature is
12.2°C
1.4° 

Blacks Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Blacks Reef surf forecast from 30 Aug 2026:

  • Best quality surf: Tuesday 1 Sep, 6PM (local time) - 11ft (3.5m), 13s period, S swell with glassy winds.
  • Most powerful swell: Tuesday 1 Sep, 9PM (local time) - 11ft (3.5m), 13s period, S swell with 3,963 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 1 Sep, 6PM (local time) - 11ft (3.5m), 13s period with S swell.

Best Forecast Surf Conditions for Blacks Reef this week:

The surf forecast for Blacks Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 01) at 6PM. The primary swell is predicted to be 3.5m and 13s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Blacks Reef in the next 16 days are 3.5m 13s and forecast to arrive on Tuesday (Sep 01) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Sunday (Sep 06) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Tue 1st Sep)11ft (3.5m) 13s
Best Surf 6PM (Tue 1st Sep)11ft (3.5m) 13s
Most Powerful 9PM (Tue 1st Sep)11ft (3.5m) 13s

Table - best surf conditions forecast for Blacks Reef over the next 16 days.


The Lowdown

Alright folks, Rusty here. We’re looking at Blacks Reef as the only spot on the menu for this stretch. It’s a mixed bag, but there are a couple of windows that’ll get you out of bed.

Right now, the water temp is about 54°, which is a bit colder than you’d normally expect for this time of year. Not ideal, but you’ll forget that if the waves line up.

The start of the period is a bit of a wash. Sunday the 30th and Monday the 31st have some waves, but the wind is messy—cross and cross-onshore—and the quality just isn’t there. Small, choppy stuff. Not worth the paddle.

Then we get to the real standout. Wednesday the 2nd of September is the one. The morning has clean conditions with a light cross-offshore breeze from the NW, and the swell is a solid 8ft from the South, with a long period of 13 seconds. That’s a proper groundswell. The combined wave energy is strong at 2777. By the afternoon, it goes glassy—dead calm, NNW breeze—swell bumps up slightly to 8ft with a very long 17-second period, and the energy jumps to 3882 (very strong). This is expert territory. Over 8ft is only for those who know what they’re doing. That long period will make the reef lines stack up, but the gaps between sets will be longer. If you’re experienced, this is your window.

Thursday the 3rd sees the swell drop to a more manageable 5ft in the morning, but the wind goes cross-shore, making it lumpy. The afternoon cleans up, but the swell drops to 4ft. It’s surfable but not a standout.

From Friday the 4th through to the 6th of September, the swell fades and the energy drops into the double digits (weak). There’s a small window on Saturday the 5th afternoon with 4ft from the SSW, but the conditions are ordinary. Not much to write home about.

Looking ahead, there’s a big one brewing. Monday the 7th of September morning features a huge 13ft SSW swell, but here’s the catch—that’s too big for Blacks Reef. It’ll be a washing machine. Combined energy is 3241 (very strong), and strong cross-shore winds from the WNW will make it even messier. This is more of a kitesurfing setup than a paddle surfing one. The afternoon sees 10ft with onshore wind and rain. Hard pass.

The rest of the second week thins out. Tuesday the 8th and Wednesday the 9th have some small clean waves (4ft to 5ft), but nothing that will get your heart racing. There’s a glassy, clean morning on Thursday the 10th of September with a short-period 4ft SSW swell (6 seconds)—cruisy but not powerful. After that, it’s mostly onshore wind, cross-chop, and small, weak swell. Saturday the 13th of September morning has a clean 4ft from the S, but that’s about it. The window from the 11th to the 14th is mostly poor.

Best on offer: Wednesday the 2nd of September. Morning and afternoon both deliver excellent, clean conditions for experienced surfers. The swell is overhead and the energy is massive. Don’t miss it if you’re up for the challenge.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Mon night. Very mild (max 17°C on Mon afternoon, min 7°C on Mon night). Winds decreasing (fresh winds from the SW on Mon night, calm by Tue afternoon).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 19°C on Thu afternoon, min 10°C on Fri night). Wind will be generally light.

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
0
0
3
5
5
6
2
1
0
1
0
0
0
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SSW
13
0.9
S
17
1.4
S
15
3
S
13
3
S
12
3
S
12
3
S
13
2.4
S
13
2.5
S
17
2.1
S
14
1.5
S
13
1.2
S
12
0.9
S
12
0.6
S
11
0.5
S
10
0.2
S
16
0.6
SSW
7
0.7
SSW
8
0.5
S
12
Wave Graph
Metric surfscale
Energy kJ
58
470
847
3054
2822
2831
3566
2042
3927
1797
749
430
214
79
50
19
36
72
76
Wind (km/h)
20
W
25
WNW
25
W
25
SSW
25
SW
10
SSW
10
NW
15
NW
5
NNE
20
WNW
20
WNW
20
WNW
20
NW
25
NW
20
NW
10
WNW
5
NNW
15
ENE
15
NW
Wind State
cross-on
cross
cross
on
cross-on
on
cross-off
cross-off
glassy
cross
cross
cross
cross-off
cross-off
cross-off
cross
glassy
cross-off
cross-off
High Tide
7:44AM1.59m
8:05PM1.66m
8:29AM1.65m
8:52PM1.69m
9:13AM1.70m
9:40PM1.69m
9:59AM1.73m
10:30PM1.68m
10:50AM1.74m
11:22PM1.67m
11:46AM1.74m
00:17AM1.65m
Low Tide
1:35AM0.24m
1:48PM0.24m
2:20AM0.23m
2:37PM0.24m
3:05AM0.23m
3:28PM0.25m
3:52AM0.23m
4:20PM0.25m
4:42AM0.24m
5:13PM0.25m
5:34AM0.23m
6:09PM0.23m
clear
clear
clear
rain showers
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:31
6:30
6:28
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:46
5:46
5:47
5:49
 mm
4
Temp °C
14
16
17
13
9
9
9
15
17
13
18
19
15
18
17
15
15
16
14
Feels °C
9
9
11
5
3
6
6
13
15
8
14
15
11
14
13
11
13
13
11
  • Map Icons:
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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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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 16 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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