Blacks Reef Surf Break

Lat Long: 39.07° S 177.80° E

Blacks Reef Surf Forecast and Surf Report

Issued: 5 am 01 Aug 2026 (local time)

Forecast update in  hr  min

Today's Blacks Reef sea temperature is
12.7° C
1.2° 

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 31 Jul 2026:

  • Best quality surf: Tuesday 4 Aug, 9PM (local time) - 16ft (5.0m), 14s period, S swell with cross-onshore winds.
  • Most powerful swell: Tuesday 4 Aug, 9PM (local time) - 16ft (5.0m), 14s period, S swell with 11,135 kJ wave energy.
  • Next surfable swell (1★+): Sunday 2 Aug, 6PM (local time) - 6.5ft (2.0m), 11s 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 Sunday (Aug 02) at 6PM. The primary swell is predicted to be 2.0m and 11s period with a secondary swell of 0.8m 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 5.0m 14s and forecast to arrive on Tuesday (Aug 04) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Aug 08) at 3AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Sun 2nd Aug)6.5ft (2.0m) 11s
Best Surf 9PM (Tue 4th Aug)16ft (5.0m) 14s
Most Powerful 9PM (Tue 4th Aug)16ft (5.0m) 14s

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


The Lowdown

Alright, Rusty here. Let’s take a look at what’s shaping up for Blacks Reef.

Right now, we’re looking at a pretty rough start. The first few days are a write-off. Saturday the 1st through to Tuesday the 5th is just a mess – strong onshore winds, rain, and a lot of raw, unruly energy. The swell is big, but the wind is absolutely trashing it. We’re talking combined energy readings in the thousands (1231 to 9900), which is a lot of power, but it’s all for nothing with the wind blowing straight on. It’s not surfable, so don’t even bother.

We finally get a break on Wednesday the 6th. The wind starts to ease, but it’s still cross-onshore so the surf is marginal. The swell drops to a more manageable 8 ft from the S, with a moderate energy (1650). It’s a wait-and-see day.

Now, the real standout is Friday the 7th. This is the one to circle. The morning brings glassy conditions – a light NNW wind, dead calm. The swell is a clean 5 ft from the S, but here’s the kicker: that period is 17 seconds. That’s a very long period groundswell, packing some serious punch. The energy is strong (2012). This is going to be a beautiful, clean wave, but it’s going to be big, powerful, and a bit tricky for the average punter. This is definitely one for the experienced crew. The afternoon gets even better for the experts, with the swell bumping up to 10 ft and the wind turning clean offshore. The energy jumps to 4615. That’s a very heavy, powerful wave.

Saturday the 8th is still good, but a step down. Clean, offshore winds in the morning with 6 ft of S swell (1218 energy). The afternoon is glassy with 6 ft waves. It’s a solid, fun day, but not as epic as Friday.

The next week is pretty quiet. Sunday the 9th through to Thursday the 13th is mostly small, weak, and often wonky. There’s a brief moment on Thursday the 13th afternoon with a clean 3 ft from the E on a light offshore wind, but it’s not enough to write home about.

Then, out of the blue, we get another potential standout on Friday the 14th. The afternoon looks excellent, with a 10 ft swell from the SSW and clean, light offshore winds from the NE. The energy is solid (1500). This is a long-range call, so it’s a promise, not a guarantee, but it’s a good one for experienced surfers.

The water temp is sitting at 55°, which is a bit colder than normal for this time of year, so you’ll want a good wetsuit for that Friday session.

So, to sum it up: the first few days are a total loss. The best on offer is Friday the 7th – that’s the one if you’ve got the skill. Friday the 14th is the promising long-range option. The rest of the window is a mix of small, marginal, or blown-out.

Stay patient, and keep an eye on that Friday the 7th forecast.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Sat morning. Very mild (max 15°C on Mon afternoon, min 5°C on Sat night). Winds decreasing (fresh winds from the SW on Sat morning, light winds from the NW by Sun afternoon).

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Tue morning. Very mild (max 10°C on Tue morning, min 4°C on Thu night). Winds decreasing (fresh winds from the SSW on Tue afternoon, calm by Thu afternoon).

Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
3
3
3
1
1
0
0
0
0
0
2
2
2
3
3
4
5
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
SSW
9
3
S
10
3
S
13
2.5
S
12
2.2
S
11
1.9
S
11
1.7
S
10
1.4
S
12
1.4
S
12
1.8
S
15
5
S
15
4
S
14
3.5
S
14
3
S
13
2.5
S
12
2.4
S
12
2.1
S
11
1.7
SSE
10
1.5
S
17
3
S
16
2.5
S
14
Wave Graph
Metric surfscale
Energy kJ
1070
1778
3139
1880
1179
878
627
613
547
1511
9900
7188
4578
3397
2139
1644
1124
607
1326
4425
2545
Wind (km/h)
30
SW
30
SSW
20
SSW
10
W
5
WSW
10
NNW
20
WNW
10
WSW
20
W
30
SW
35
SSW
30
SW
25
SW
20
SW
15
WSW
10
W
10
SSW
10
NW
5
NNW
15
ENE
10
NW
Wind State
on
on
on
cross
cross-on
cross-off
cross
cross-on
cross-on
on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-off
glassy
cross-off
cross-off
High Tide
7:50PM1.58m
8:14AM1.51m
8:34PM1.61m
8:57AM1.55m
9:19PM1.63m
9:39AM1.59m
10:04PM1.65m
10:22AM1.63m
10:51PM1.66m
11:10AM1.67m
11:41PM1.67m
12:04PM1.70m
00:33AM1.67m
Low Tide
1:30PM0.31m
2:07AM0.29m
2:15PM0.29m
2:50AM0.27m
3:02PM0.29m
3:34AM0.27m
3:49PM0.29m
4:19AM0.27m
4:38PM0.30m
5:05AM0.28m
5:29PM0.31m
5:54AM0.28m
6:23PM0.31m
light rain
cloud
part cloud
clear
clear
clear
clear
clear
rain showers
light rain
part cloud
rain showers
light rain
rain showers
part cloud
part cloud
clear
clear
clear
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:11
7:11
7:09
7:09
7:07
7:05
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:17
5:19
5:20
5:21
5:22
5:22
5:22
 mm
2
1
2
1
2
1
Temp °C
9
9
9
9
10
9
14
15
11
10
9
8
7
9
8
8
8
6
10
12
12
Feels °C
2
1
3
5
6
5
11
12
7
4
0
0
1
4
4
4
5
4
8
8
9
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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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