Blacks Reef Surf Break

Lat Long: 39.07° S 177.80° E

Blacks Reef Surf Forecast and Surf Report

Issued: 5 pm 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Blacks Reef sea temperature is
12.6°C
1.0° 

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 1 Sep 2026:

  • Best quality surf: Wednesday 2 Sep, 12AM (local time) - 11ft (3.5m), 14s period, S swell with cross-offshore winds.
  • Most powerful swell: Tuesday 8 Sep, 12AM (local time) - 18ft (5.5m), 12s period, S swell with 8,863 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 12AM (local time) - 11ft (3.5m), 14s 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 Wednesday (Sep 02) at 12AM. The primary swell is predicted to be 3.5m and 14s period. 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 12s and forecast to arrive on Tuesday (Sep 08) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 7s period and expected on Sunday (Sep 06) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Wed 2nd Sep)11ft (3.5m) 14s
Best Surf12AM (Wed 2nd Sep)11ft (3.5m) 14s
Most Powerful12AM (Tue 8th Sep)18ft (5.5m) 12s

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


The Lowdown

Alright folks, Rusty here. Let’s get stuck into the next 16 days for Blacks Reef. We’ve got a solid start and a few windows of real quality, but you’ll need to watch the wind and the size.

The first good surf kicks off on the 1st of September with a Tuesday afternoon session. The water is sitting at 55°, which is a touch cooler than usual for this time of year, so you’ll want a decent spring suit.

The real standout of the whole window is Wednesday the 2nd. That morning, we’ve got a clean 8ft south swell, with a very long 14-second period, and a light cross-offshore breeze. The combined energy is pumping at 2770—that’s some serious grunt. This is a reef break, so that long period will wrap in beautifully. It’s a big wave though, over 8ft, so this is strictly for the experienced crew. The afternoon holds even better, with an 8ft south swell and a 17-second period, creating a massive 4137 energy reading. The wind goes light and cross-offshore again. This is probably the best on offer—if you can handle it, you’ll be in for a treat. Just know that crowds are likely here, and it’s a very consistent spot.

Thursday the 3rd is still a good call. The morning sees a 6ft south swell (13-second period) with a cross-offshore breeze and 1077 energy. The afternoon drops to 5ft but stays clean. Good for a wider range of surfers.

Then we hit a flat spell. From Friday the 4th all the way through to Monday the 7th, the swell drops right off—under 3ft and mostly poor conditions. That’s a solid four-day gap with nothing worth paddling out for.

Tuesday the 8th brings a jump in size, but it comes with a strong onshore wind. An 12ft south swell with a cross-onshore breeze and a moderate chop makes it a messy, blown-out mess. Honestly, this looks more interesting for the kite surfers than paddle surfers.

We get a bit of a recovery on Thursday the 10th. The afternoon sees a clean 5ft SSE swell (10-second period) with a light cross-offshore breeze. It’s a smaller, more manageable wave, and the energy is light at 352. A good one for a fun, low-key session.

The next real standout is Saturday the 12th. The morning is absolutely glassy—zero wind, with a clean 7ft SE swell and a 10-second period. The energy is a moderate 933. This is a fantastic window for experienced surfers, as the size is solid but not outrageous. The conditions will be pristine. The afternoon stays clean with a cross-offshore breeze, though the swell drops to 6ft. Sunday the 13th is also a beauty: a glassy morning with a 6ft ESE swell, and the afternoon stays clean. This is a great run of quality surf.

The last week of the forecast is a bit more mixed. Monday the 14th has a clean 4ft SE swell with a gentle offshore breeze, but it’s small. Tuesday the 15th is worth a look: both morning and afternoon offer a 6ft ESE swell with a clean offshore breeze and moderate energy (509 and 559). It’s a good, solid choice for the following week.

Summary:
- Best on offer: Wednesday the 2nd (morning and afternoon) for the massive, long-period groundswell and clean conditions. Strictly for experts.
- Best for a wider range: Saturday the 12th and Sunday the 13th. Glassy, clean, and solid size without being too heavy.

Get out there if you can, and keep an eye on that forecast—it can always change.
- Rusty

Short Range Forecast

Mostly dry. Very mild (max 18°C on Thu morning, min 7°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Sun night. Very mild (max 17°C on Fri afternoon, min 10°C on Fri night). Winds increasing (light winds from the ESE on Sat afternoon, fresh winds from the SSW by Mon morning).

Tue
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
!
5
5
3
4
3
1
0
0
0
0
0
1
1
1
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
S
12
3.5
S
14
2.4
S
14
2.5
S
17
2.3
S
14
1.8
S
13
1.4
S
13
1
S
12
0.8
S
11
0.6
S
10
0.4
S
10
0.5
SSW
9
0.6
S
8
0.7
S
9
0.7
SSW
10
0.5
S
9
0.3
SSW
17
0.3
SSW
16
1.5
SW
5
5.5
S
12
Wave Graph
Metric surfscale
Energy kJ
2770
3953
2073
4137
2155
1077
623
276
146
72
29
45
50
83
96
43
59
52
115
8863
Wind (km/h)
10
SSW
10
NW
10
NNW
5
ENE
15
WNW
10
NW
10
NE
15
NW
20
NW
25
NW
15
WNW
15
WNW
10
ESE
10
N
15
NNW
20
N
20
NW
25
WNW
40
SW
40
SW
Wind State
on
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
off
cross-off
cross
on
on
High Tide
8:52PM1.69m
9:13AM1.70m
9:40PM1.69m
9:59AM1.73m
10:30PM1.68m
10:50AM1.74m
11:22PM1.67m
11:46AM1.74m
00:17AM1.65m
12:46PM1.73m
1:15AM1.63m
1:45PM1.73m
2:15AM1.61m
Low Tide
3:05AM0.23m
3:28PM0.25m
3:52AM0.23m
4:20PM0.25m
4:42AM0.24m
5:13PM0.25m
5:34AM0.23m
6:09PM0.23m
6:29AM0.21m
7:08PM0.21m
7:26AM0.19m
8:07PM0.18m
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
rain showers
light rain
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:28
6:26
6:26
6:24
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:46
5:46
5:47
5:49
5:50
5:51
 mm
3
1
1
Temp °C
10
9
15
17
13
18
18
15
17
17
13
15
15
11
15
16
15
13
10
10
Feels °C
6
6
13
15
10
16
15
11
12
13
9
12
12
7
11
13
13
7
2
0
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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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