Blacks Reef Surf Break

Lat Long: 39.07° S 177.80° E

Issued: 5 pm 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Blacks Reef sea temperature is
13.0° C

1.5°C colder than average for this time of year

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 3 Jul 2026:

  • Best quality surf: Saturday 4 Jul, 12AM (local time) - 5ft (1.5m), 12s period, E swell with cross-offshore winds.
  • Most powerful swell: Friday 10 Jul, 9AM (local time) - 18ft (5.5m), 11s period, S swell with 6,873 kJ wave energy.
  • Next surfable swell (1★+): Saturday 4 Jul, 12AM (local time) - 5ft (1.5m), 12s period with E 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 (Jul 04) at 12AM. The primary swell is predicted to be 1.5m and 12s period with a secondary swell of 0.2m and 8s. 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 5.5m 11s and forecast to arrive on Friday (Jul 10) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Monday (Jul 06) at 12PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 4th Jul)5ft (1.5m) 12s
Best Surf12AM (Sat 4th Jul)5ft (1.5m) 12s
Most Powerful 9AM (Fri 10th Jul)18ft (5.5m) 11s

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


Updates in  hr  min  s Forecast update imminent

Alright folks, Rusty here. Let’s take a look at what’s coming down the line for Blacks Reef.

First things first, this reef is set up for a south swell, and that’s exactly what’s on the cards over the next couple of weeks. The water’s running a bit colder than usual, about 55.4°, which is a full 2.7° below average for this time of year. Grab the thicker wetsuit if you’ve got one.

We’ve got a bit of a slow start but things kick off proper on Friday afternoon, July 3rd. A clean 4.6ft south-east swell with a nice 12-second period is rolling in, combined energy reading a solid 672. The wind is a light cross-off from the east-northeast at just 3 mph, so the conditions are looking set for some very good surf. It’s a reef, so it'll hold that swell well.

Saturday morning, July 4th, looks like a repeat – clean 4.6ft swell, still from the south-east, with a bit more wind (6 mph from the north) but still cross-off. The afternoon gets a bit more offshore from the north-northeast at 9 mph, with the swell shifting just a touch east. Good, clean waves.

Sunday, July 5th, the swell backs off a little – 3.6ft in the morning and down to 3ft by the afternoon. The period drops to 10 seconds, and the energy drops to 243 then 173. Still clean with offshore winds, but the size is running low.

Monday the 6th is a write-off. Tiny, weak junk. Barely a ripple. A gap, really.

Now, here’s where it gets interesting. Tuesday morning, July 7th, the swell jumps back up to 4.6ft with a 9-second period, and here’s the kicker: glassy conditions. The wind is a whisper at 3 mph from the north-northeast. That’s a major positive. The energy is back up at 720. This is a standout window. Get out there for the morning glass-off before the wind swings onshore in the afternoon.

Wednesday the 8th morning is another absolute gem. The swell bumps up to 5.6ft from the east-southeast (10-second period), the combined energy hits 789, and the wind is dead calm. Glass. Zero wind. This is as clean as it gets. But again, the afternoon turns to rubbish with a cross-onshore.

We hit a rough patch from Thursday the 9th through Sunday the 12th. The wind goes strong onshore and it rains. The swell gets big – we’re talking 18ft from the south on Friday the 10th. The energy reading on that is a massive 7036. But the wind is howling onshore at 22 mph. That’s not paddle surfing; that’s kite territory at a beach setup. For this reef, it’s a pass.

That stormy period clears by Monday morning, July 13th. The swell drops to a more manageable 6.6ft from the south-southeast (short 8-second period), but the wind goes glassy again. Rain showers around, but the surface is clean. This is a solid, more powerful option for those who can handle it, though the short period means the sets might be a bit dumpy on the reef.

Tuesday the 14th offers a 6.2ft south-east swell with a long 10-second period, but the wind is a moderate cross-off at 12 mph. It’s clean, but bumpy. Combined energy is well into the 1200 range.

The real standout of the whole run is Wednesday afternoon, July 15th. The swell sits at a meaty 5.9ft from the south-east, with a gorgeous 12-second period. The combined energy is a beefy 1446. And the wind? Dead glass from the east-southeast at just 3 mph. This is excellent for experienced surfers. The long period means the reef will line up perfectly. This is the session to circle on your calendar.

The weekend after that, July 17th and 18th, still has some punch. Friday afternoon the 17th has a 9.8ft swell (period 10 seconds) going glassy again, but that size is pushing into expert-only territory with a combined energy of 2020. Saturday the 18th has a cleaner 6.2ft south-east swell with a 12-second period and light offshores again. Good solid finish to the run.

Alright, that’s the story for Blacks Reef. See you in the water.

Short Range Forecast

Light rain (total 7mm), mostly falling on Mon morning. Very mild (max 15°C on Sat afternoon, min 7°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 21mm), heaviest during Mon night. Very mild (max 12°C on Mon afternoon, min 8°C on Mon night). Wind will be generally light.

Fri
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
3
3
3
2
0
2
1
2
0
0
3
3
1
2
3
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
ESE
12
1.5
E
12
1.4
ESE
12
1.4
E
11
0.1
S
12
1.1
E
10
0.9
ESE
10
1.1
E
10
0.1
S
22
0.2
S
20
1.5
E
9
1.4
E
9
1.4
E
10
1.6
ESE
10
1.7
ESE
10
1.6
ESE
10
1.5
ESE
10
1.4
ESE
10
1.3
ESE
10
4
SSW
9
5.5
S
11
Wave Graph
Metric surfscale
Energy kJ
628
672
541
475
3
235
167
234
9
31
392
347
361
480
529
502
446
356
301
2883
6873
Wind (km/h)
5
ENE
10
NNW
10
N
15
NNE
15
NNE
15
N
15
NNE
10
N
10
NNE
10
NE
10
NNW
5
NNE
10
SW
15
W
0
N
15
SW
25
SSW
30
SSW
25
S
30
SSE
35
S
Wind State
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
cross-off
glassy
on
cross
glassy
cross-on
on
on
cross-on
cross-on
on
High Tide
8:17PM1.58m
8:43AM1.46m
9:00PM1.57m
9:24AM1.48m
9:44PM1.57m
10:05AM1.50m
10:30PM1.58m
10:48AM1.53m
11:16PM1.60m
11:34AM1.57m
00:04AM1.63m
12:26PM1.63m
00:54AM1.67m
Low Tide
2:37AM0.35m
2:42PM0.37m
3:19AM0.32m
3:27PM0.35m
4:02AM0.31m
4:14PM0.35m
4:46AM0.31m
5:01PM0.35m
5:32AM0.31m
5:49PM0.35m
6:18AM0.31m
6:42PM0.36m
7:07AM0.30m
clear
clear
clear
clear
part cloud
clear
clear
light rain
mod rain
light rain
rain showers
part cloud
part cloud
part cloud
clear
part cloud
mod rain
mod rain
mod rain
heavy rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:28
7:28
7:26
7:26
7:26
7:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
4:57
4:58
4:58
4:59
4:59
5:00
5:00
5:00
 mm
1
6
1
5
8
7
9
11
2
Temp °C
11
9
13
15
12
15
15
11
12
12
10
12
12
11
11
11
12
12
12
12
11
Feels °C
8
6
9
11
8
12
12
8
8
10
7
10
9
7
9
7
7
7
7
7
3
Swell 1
Height (m)
Direction
Period (s)
1.4
ESE
12
1.5
E
12
1.4
ESE
12
1.4
E
11
0.1
S
12
1.1
E
10
0.9
ESE
10
1.1
E
10
0.1
S
14
1.9
ENE
10
1.5
E
9
1.4
E
9
1.4
E
10
1.6
ESE
10
1.7
ESE
10
1.6
ESE
10
1.5
ESE
10
1.4
ESE
10
1.3
ESE
10
1.1
ESE
10
0.9
ESE
10
Energy kJ
628
672
541
475
3
235
167
234
4
681
392
347
361
480
529
502
446
356
301
246
163
Swell 2
Height (m)
Direction
Period (s)
0.4
S
9
0.2
S
8
0.1
S
14
0.1
S
13
0.1
S
12
0.1
S
12
0.9
NE
7
0.1
S
16
0.1
S
22
0.2
S
20
0.5
SSW
10
1.1
SSW
10
1.1
S
10
1
S
10
0.9
SSW
9
0.8
S
9
0.8
S
9
0.3
SSW
17
0.4
SSW
17
Energy kJ
24
5
4
3
3
3
65
5
9
31
60
276
250
208
147
99
96
58
99
Swell 3
Height (m)
Direction
Period (s)
0.2
S
16
0.1
S
15
0.1
N
11
0.1
S
16
0.1
S
17
0.1
S
13
0.4
S
18
0.4
SSW
17
0.4
SSW
16
0.5
S
16
0.5
S
14
0.4
SSW
14
0.4
SSW
12
0.4
NE
7
0.3
NE
7
Energy kJ
20
4
2
5
6
3
102
97
87
122
103
61
50
14
8
Wind waves
Height (m)
Direction
Period (s)
0.8
NE
4
1.5
E
11
1.1
NE
7
1.1
NE
7
0.9
NNE
6
1.9
ENE
7
0.9
NNW
4
0.6
SW
4
0.7
SSW
5
0.5
SW
3
1.5
SSW
8
1.7
SSW
7
4
SSW
9
5.5
S
11
Energy kJ
19
516
113
113
63
379
21
10
19
4
253
268
2883
6873
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
2
2
2
1
2
2
2
3
3
2
2
3
2
2
2
2
1
1
Distance (km)
0
0
0
0
33
0
0
0
41
41
0
0
3
3
0
9
41
89
114
157
162
Best forecast wave conditions in Gisborne and Mahia
Rating
(10 max)
3
3
3
2
2
2
2
2
2
2
3
3
3
3
3
3
2
Best forecast wave conditions in New Zealand
Rating
(10 max)
3
3
3
3
2
2
4
5
7
6
9
5
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
5
8
5
4
5
5
9
6
7
6
9
7
5
6
9
9
9
6
5
6
6
  • 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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