Blacks Reef Surf Break

Lat Long: 39.07° S 177.80° E

Blacks Reef Surf Forecast and Surf Report

Issued: 5 pm 07 Aug 2026 (local time)

Forecast update in  hr  min

Today's Blacks Reef sea temperature is
12.3° C
1.6° 

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 7 Aug 2026:

  • Best quality surf: Saturday 8 Aug, 12AM (local time) - 7.5ft (2.3m), 13s period, S swell with cross-offshore winds.
  • Most powerful swell: Saturday 8 Aug, 12AM (local time) - 7.5ft (2.3m), 13s period, S swell with 1,866 kJ wave energy.
  • Next surfable swell (1★+): Saturday 8 Aug, 12AM (local time) - 7.5ft (2.3m), 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 Saturday (Aug 08) at 12AM. The primary swell is predicted to be 2.3m and 13s period with a secondary swell of 0.1m and 14s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Blacks Reef in the next 16 days are 2.3m 13s and forecast to arrive on Saturday (Aug 08) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 10s period and expected on Friday (Aug 14) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 8th Aug)7.5ft (2.3m) 13s
Best Surf12AM (Sat 8th Aug)7.5ft (2.3m) 13s
Most Powerful12AM (Sat 8th Aug)7.5ft (2.3m) 13s

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


The Lowdown

Alright folks, Rusty here. Let’s talk about what’s cooking for our local reef setup.

We’ve got a solid run of waves coming through, but it’s a bit of a mixed bag. The main event is a good-sized, long period south swell that pushes through this weekend, but it’s not all clean. The water is sitting at 54°, which is a bit colder than what we’d usually expect for this time of year, so don’t forget the extra rubber.

Blacks Reef is the only spot on the radar, and it’s a reef break that’s exposed to the south. It’s very consistent, which is a massive plus, but it can get crowded, so keep that in mind.

The real standout is Saturday morning, August 8th. We’ve got a solid 7ft south swell, with a 12-second period, putting a ton of energy into the water (2388). The wind is a light 3 mph from the north-west, which is a clean, cross-off breeze. This is going to be excellent, clean surf for experienced surfers. The wave energy is moderate, but that long period groundswell means the waves will have shape and power. It’s the best on offer.

Sunday morning, August 9th, is also a good call. The swell drops to 4ft from the south, but the wind is pure offshore from the north at 9 mph. The energy is still decent (666), and it’ll be clean. A solid session for a Sunday.

After that, the swell really fades. Monday through to the following Saturday sees tiny, weak waves with poor conditions. The energy drops right off into the double digits, and the wind is mostly onshore or cross. There’s a long gap of flat, messy conditions here.

Then, we get a little flicker of life. Sunday afternoon, August 16th, the wind goes glassy – a light 3 mph from the west – and a 6ft south-southwest swell rolls in. The period is short at 6 seconds, so it’ll be a bit soft and bumpy, but total glassy conditions are rare. Worth a paddle if you’re jonesing.

Monday afternoon, August 17th, brings a cleaner 7ft swell from the south-southwest with a 10-second period and light cross-off winds. The energy is building again (947), and it’ll be clean.

Now, look out for the pulse around August 20th. The swell is predicted to be massive – 13ft from the south – but the wind is going to be a strong cross-shore. The wave energy is going to be off the charts (4942), but this is for experts only. It’s way too big for most, and the wind isn’t ideal. The following days, the size drops but the wind stays messy.

The tail end of the outlook, around August 21st and 22nd, is just average. The swell is there, but the wind is onshore, making it sloppy. Not worth getting excited about.

So, the headline is clear: Saturday morning, August 8th is your best bet. The next best is Sunday morning, August 9th, then keep an eye on Monday the 17th afternoon. The big swell around the 20th is for the brave and the crazy.

Stay wet, and check the tides.

- Rusty

Short Range Forecast

Mostly dry. Very mild (max 15°C on Sun morning, min 5°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 20mm), heaviest during Wed night. Very mild (max 15°C on Mon afternoon, min 9°C on Mon night). Wind will be generally light.

Fri
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
4
4
3
3
3
3
2
0
0
1
1
1
1
1
1
1
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)
2.1
S
15
2.3
S
13
2
S
12
1.8
S
12
1.5
S
11
1.3
S
11
0.9
S
13
1.2
S
12
0.9
SSE
10
0.9
SSE
10
0.8
SSE
12
1
SSE
12
1.1
SSE
12
0.9
SSE
11
0.6
SSE
10
0.5
SE
9
0.5
S
10
0.5
S
10
0.7
ESE
8
0.4
SSE
12
Wave Graph
Metric surfscale
Energy kJ
1860
1866
1233
911
553
388
289
397
170
173
175
269
301
167
80
40
56
50
52
55
Wind (km/h)
10
ESE
5
NNW
5
NW
10
ENE
10
N
15
N
15
N
15
NW
15
NW
10
SSE
10
WSW
10
WSW
5
S
10
NNE
15
NNE
25
NE
20
NE
20
NE
15
NE
15
NE
Wind State
cross
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
off
off
off
off
off
off
off
High Tide
00:33AM1.67m
1:01PM1.74m
1:29AM1.67m
2:00PM1.77m
2:29AM1.68m
2:59PM1.81m
3:29AM1.69m
3:57PM1.84m
4:28AM1.70m
4:56PM1.86m
5:26AM1.71m
5:54PM1.87m
Low Tide
6:23PM0.31m
6:46AM0.27m
7:22PM0.29m
7:41AM0.25m
8:22PM0.24m
8:41AM0.22m
9:21PM0.19m
9:43AM0.16m
10:20PM0.15m
10:43AM0.10m
11:18PM0.11m
11:39AM0.06m
00:16AM0.09m
part cloud
clear
part cloud
cloud
part cloud
cloud
cloud
clear
clear
part cloud
clear
part cloud
cloud
part cloud
part cloud
light rain
heavy rain
light rain
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:03
7:01
7:01
7:00
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:23
5:24
5:25
5:27
5:28
5:29
 mm
2
14
4
1
Temp °C
9
6
12
13
10
15
15
13
15
15
11
11
12
10
13
14
13
15
17
14
Feels °C
6
3
9
9
6
12
12
10
11
12
9
8
10
7
8
9
10
13
15
12
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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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