Blacks Reef Surf Break

Lat Long: 39.07° S 177.80° E

Blacks Reef Surf Forecast and Surf Report

Issued: 5 pm 28 Jul 2026 (local time)

Forecast update in  hr  min

Today's Blacks Reef sea temperature is
12.6° 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 28 Jul 2026:

  • Best quality surf: Wednesday 5 Aug, 12AM (local time) - 11ft (3.5m), 14s period, S swell with cross-onshore winds.
  • Most powerful swell: Tuesday 4 Aug, 3PM (local time) - 15ft (4.5m), 15s period, S swell with 8,096 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 9AM (local time) - 6ft (1.8m), 13s period with SE 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 Wednesday (Jul 29) at 9AM. The primary swell is predicted to be 1.8m and 13s period with a secondary swell of 0.4m and 10s. 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 4.5m 15s and forecast to arrive on Tuesday (Aug 04) at 3PM. 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 Friday (Jul 31) at 9AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Wed 29th Jul)6ft (1.8m) 13s
Best Surf12AM (Wed 5th Aug)11ft (3.5m) 14s
Most Powerful 3PM (Tue 4th Aug)15ft (4.5m) 15s

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


The Lowdown

Alright crew, Rusty here. Let’s have a proper look at what’s on the menu for the next couple of weeks.

We’ve got a slow start with no real surf to recommend, then a solid window of clean, manageable waves mid-week, before a massive pulse of energy hits that’s going to be way too big and messy. The standout is definitely Wednesday morning, July 29th, when conditions line up beautifully.

The first surf worth paddling out for is on Wednesday, July 29th. The morning session is the pick of the entire forecast. Blacks Reef will see a 6ft swell from the SE with a solid 13-second period – that’s real groundswell, meaning it’ll have some punch and shape. The wind is light from the NNW, blowing cross-offshore, which is going to keep the surface clean and lined up. The water is sitting at 54°F, which is a bit colder than normal for this time of year, so you’ll want a good wetsuit. The combined swell energy is moderate at 1043. This is ideal for experienced surfers – not too big, not too small, and the reef setup will handle that long period nicely. Wednesday afternoon holds up too, with 6ft from the SE and a 12-second period, but the wind picks up a little from the NE, still cross-offshore. Still a very good session.

Thursday, July 30th drops off a touch. Morning has 5ft from the ESE at 12 seconds, with a clean cross-offshore NW breeze. It’s a smaller day, but still rideable. The combined energy is 701. Afternoon is similar, 4ft, clean, but nothing to get too excited about.

Friday, July 31st sees the swell drop further, down to 3ft from the ESE. The wind is up a bit from the NW, still cross-offshore, but the energy is waning (277). It’s marginal.

Then the weekend turns ugly. Saturday, August 1st brings a strong SW wind and a jump in swell to 12ft, but it’s messy onshore junk. That’s a no-go. Sunday, August 2nd is even worse – 12ft from the S with strong onshore winds. The combined energy is 2671, but it’s blown out.

Monday, August 3rd is a mixed bag. The morning is still a bit lumpy with 8ft from the S. But the afternoon is a gem: 7ft from the S, 10-second period, and the wind goes completely glassy. That’s a rare treat – clean, smooth, and the reef will handle it. The combined energy is 970. This is your second-best window.

From Tuesday, August 4th onward, things get heavy and tricky. The swell spikes but the wind is all over the shop. Tuesday afternoon sees 8ft from the S with a very long 17-second period – that’s a lot of energy (3649) – but the cross-onshore wind makes it messy. Wednesday through Friday, August 5th to 7th, the swell jumps to 21ft from the SSW with periods around 14 seconds. That’s massive energy (26003) – but it’s way too big for Blacks Reef, and the wind is howling onshore. This is only for the absolute big-wave experts, and even then, the wind is ruining it. It looks more like a kite-surfing scene than a paddle surf.

The following week, from August 8th onwards, is a write-off. Strong onshore winds, big swell, poor conditions. The combined energy stays high, but the quality is zero. Honestly, there’s a gap of several days with no real surf to recommend.

So, to wrap it up: your best bet is Wednesday morning, July 29th at Blacks Reef – clean, 6ft SE groundswell, cross-offshore wind, moderate energy. The Monday afternoon glass-off on August 3rd is a close second. Everything else is either too small, too windy, or too big to handle.

Catch you in the water.
Rusty.

Short Range Forecast

Mostly dry. Very mild (max 16°C on Thu afternoon, min 7°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 20mm), heaviest during Sat morning. Very mild (max 15°C on Fri afternoon, min 6°C on Sat morning). Winds decreasing (strong winds from the SSW on Sun afternoon, light winds from the WSW by Mon morning).

Tue
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
3
4
3
4
3
3
2
1
0
0
0
0
0
0
0
0
1
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.3
SE
13
2
SE
13
1.8
SE
13
1.8
SE
12
1.7
ESE
12
1.4
ESE
12
1.3
ESE
11
1.1
ESE
11
0.9
ESE
11
0.8
ESE
11
0.6
ESE
11
3
SSW
8
3.5
SSW
10
4
S
11
3
S
11
3
S
11
2.5
S
10
2
S
10
1.7
SSE
10
2
S
10
Wave Graph
Metric surfscale
Energy kJ
1730
1326
1003
933
802
518
408
302
190
151
91
1351
2700
3871
2331
1897
1333
799
622
771
Wind (km/h)
15
SSW
10
WSW
5
NNW
15
NE
15
NNW
15
NNW
10
NW
15
N
20
NW
20
NW
30
WNW
25
SW
40
SSW
40
SW
40
SW
45
SSW
35
SSW
15
WSW
5
SE
15
WNW
Wind State
on
cross-on
glassy
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross
on
on
on
on
on
on
cross-on
glassy
cross
High Tide
4:53PM1.55m
5:09AM1.43m
5:37PM1.55m
5:56AM1.42m
6:22PM1.55m
6:43AM1.44m
7:06PM1.57m
7:30AM1.47m
7:50PM1.58m
8:14AM1.51m
8:34PM1.61m
8:57AM1.55m
9:19PM1.63m
Low Tide
11:08PM0.46m
11:24AM0.41m
11:53PM0.41m
12:05PM0.37m
00:38AM0.36m
12:47PM0.33m
1:23AM0.32m
1:30PM0.31m
2:07AM0.29m
2:15PM0.29m
2:50AM0.27m
3:02PM0.29m
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
mod rain
light rain
light rain
light rain
light rain
light rain
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:13
7:13
7:13
7:11
7:11
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:15
5:15
5:15
5:16
5:17
5:19
5:20
 mm
6
3
5
1
2
3
Temp °C
11
10
12
14
10
15
16
13
15
15
11
7
7
7
8
9
9
9
10
11
Feels °C
7
7
9
10
6
11
13
9
10
10
4
1
-2
-3
-3
-2
-1
6
8
4
  • Map Icons:
  • Break
  • 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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