Blacks Reef Surf Break

Lat Long: 39.07° S 177.80° E

Blacks Reef Surf Forecast and Surf Report

Issued: 11 am 25 Jul 2026 (local time)

Forecast update in  hr  min

Today's Blacks Reef sea temperature is
12.2° C
1.9° 

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 25 Jul 2026:

  • Best quality surf: Wednesday 29 Jul, 6AM (local time) - 6.5ft (2.0m), 13s period, SE swell with glassy winds.
  • Most powerful swell: Tuesday 28 Jul, 3AM (local time) - 10ft (3.0m), 12s period, SSE swell with 2,475 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 6AM (local time) - 6.5ft (2.0m), 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 6AM. The primary swell is predicted to be 2.0m and 13s period with a secondary swell of 0.3m 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 3.0m 12s and forecast to arrive on Tuesday (Jul 28) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Friday (Jul 31) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Wed 29th Jul)6.5ft (2.0m) 13s
Best Surf 6AM (Wed 29th Jul)6.5ft (2.0m) 13s
Most Powerful 3AM (Tue 28th Jul)10ft (3.0m) 12s

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


The Lowdown

Imperial Units

Alright, listen up. We’ve got a bit of a mixed bag on the horizon for Blacks Reef. The first few days are a write-off, honestly. It’s a real slow start, with nothing worth getting wet for until mid-week. The water is sitting at 54°, which is a notable 3° colder than usual for this time of year, so you’ll want a decent suit.

The action finally kicks off on Wednesday, July 29th. That’s our standout morning. We’re looking at a clean 7 ft swell from the southeast, with a solid 13-second period – that’s proper groundswell energy, and it’s gonna wrap in nicely here. The wind is glassy, dead calm, and the combined energy is strong (1324). This is excellent for experienced surfers; the reef will be handling that power beautifully. The afternoon holds up too, with a clean 6 ft from the southeast and a light cross-off breeze.

Thursday, July 30th, keeps the quality up. Morning sees a clean 5 ft from the east-southeast, with a 12-second period and light cross-off winds. The afternoon turns glassy again with a 5 ft swell. Good wave energy (739 and 598), super clean conditions.

We roll into Friday, July 31st, with a bit smaller swell, dropping to 4 ft from the east-southeast, but the wind is offshore and clean. The energy is moderate (359). It’s a fun, smaller day for a longboard or a fish.

Saturday, August 1st, is a weird one. The morning has a tiny 2 ft swell with a very long 16-second period from the southeast. That’s a lot of period for not much height, but it’s offshore. The afternoon, however, jumps up to 8 ft from the south with a short 7-second period and a cross-off breeze. That short period, choppy energy won’t be great for the reef.

Sunday, August 2nd, things get messy with onshore winds and lumpy, short-period swell. The rest of the week into the second week looks pretty poor. There’s a big spike on Monday, August 3rd, with a massive 12 ft swell from the east, but the wind is cross-on. That’s just too much juice for this spot, and the conditions will be sloppy. The combined energy is a huge 2691, but it’s not for paddling. For the rest of the run, from the 4th through the 9th, it’s mostly onshore, messy, and choppy. A few days have cross-shore winds, but the quality is just marginal. The 7th and 8th look like a full-on washing machine with strong onshore winds and big, sloppy swell. That setup looks more interesting for kite surfing than paddle surfing.

So, to sum it up: your window is Wednesday, July 29th, through Friday, August 1st, with Wednesday being the absolute standout. After that, it’s a long gap of poor to marginal conditions.

Rusty.

Short Range Forecast

Moderate rain (total 10mm), heaviest on Sat night. Very mild (max 13°C on Sat morning, min 6°C on Sun night). Mainly strong winds.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 15°C on Thu afternoon, min 7°C on Wed night). Wind will be generally light.

Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
2
4
4
3
3
3
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
E
11
0.8
E
11
2.5
SSW
7
2.2
S
8
1.2
ESE
14
1.2
ESE
13
2.5
S
8
3
S
9
2.5
SSE
12
2.5
SE
12
2.2
SE
12
2.2
SE
13
2
SE
13
1.9
SE
12
1.8
SE
12
1.6
ESE
12
1.5
ESE
11
1.3
ESE
11
1.1
ESE
11
1
ESE
11
0.8
ESE
11
Wave Graph
Metric surfscale
Energy kJ
163
160
533
643
583
458
1014
1190
1649
1976
1346
1619
1285
1082
902
698
536
435
302
256
128
Wind (km/h)
10
WNW
20
SW
40
SW
20
SW
25
SSW
25
SW
30
SW
30
SSW
25
SSW
20
S
20
S
10
SSE
5
NW
10
ENE
10
N
10
NNW
5
N
15
NNW
15
N
15
NNE
15
NNE
Wind State
cross-off
cross-on
cross-on
on
on
cross-on
cross-on
on
on
on
on
cross-on
glassy
cross-off
cross-off
cross-off
glassy
cross-off
off
off
off
High Tide
2:36PM1.59m
2:51AM1.51m
3:22PM1.58m
3:37AM1.48m
4:08PM1.56m
4:23AM1.45m
4:53PM1.55m
5:09AM1.43m
5:37PM1.55m
5:56AM1.42m
6:22PM1.55m
6:43AM1.44m
7:06PM1.57m
Low Tide
8:50PM0.50m
9:04AM0.48m
9:37PM0.50m
9:53AM0.48m
10:23PM0.49m
10:40AM0.45m
11:08PM0.46m
11:24AM0.41m
11:53PM0.41m
12:05PM0.37m
00:38AM0.36m
12:47PM0.33m
1:23AM0.32m
part cloud
light rain
rain showers
rain showers
rain showers
part cloud
light rain
light rain
light rain
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:16
7:16
7:15
7:13
7:13
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:12
5:13
5:14
5:15
5:15
5:15
5:16
 mm
2
3
1
1
1
1
1
1
Temp °C
13
10
10
9
10
9
9
10
10
11
11
10
11
11
9
13
15
10
15
16
12
Feels °C
8
5
2
3
3
3
2
3
4
5
5
6
9
8
5
10
13
6
11
12
9
  • 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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