Blacks Reef surf break

Blacks Reef surfForecast / Gisborne and Mahia / New Zealand

information circle16 Day Weather and Surf, issued 5 am Saturday 18 Apr 2026 NZST
Forecast update in hr  min  s Forecast update imminent
Blacks Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Blacks Reef sea temperature is
17.4° C
(Which is normal for this time of year)

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 Tuesday (Apr 21) at 3PM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.6m and 10s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Blacks Reef in the next 16 days are 4.0m 10s and forecast to arrive on Wednesday (Apr 22) 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 1.6m 6s period and expected on Sunday (Apr 19) at 6AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Tue 21st Apr)2.5ft (0.8m) 10s
Best Surf 6PM (Fri 24th Apr)11ft (3.5m) 12s
Most Powerful 9PM (Wed 22nd Apr)13ft (4.0m) 10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 8mm), mostly falling on Sun morning. Warm (max 21°C on Sun afternoon, min 14°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 9mm), mostly falling on Tue afternoon. Very mild (max 19°C on Wed morning, min 11°C on Wed night). Winds increasing (light winds from the NNE on Tue night, fresh winds from the SW by Wed afternoon).

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
2
1
3
0
0
1
1
0
2
2
1
Swell
Height Map
Wave Height (m) & direction (?)
0.8
S
0.6
S
0.3
S
0.2
S
0.2
S
0.2
S
0.2
S
0.2
S
0.2
S
0.2
E
0.8
S
1
S
1.3
S
2.1
S
3.5
S
2.5
S
2.5
S
2.1
S
3
S
3
S
3
S
Period(s) (?)988101098881110910711101010111212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)103511277665512120164307452286013431207821229627042582
Wind
(km/h)
20
N
20
N
25
NNE
15
NNW
10
N
10
N
5
N
15
NNE
5
NNW
10
NNE
15
NNE
10
NNE
20
N
25
WSW
25
WSW
15
WSW
20
SW
20
SW
15
W
10
SSW
20
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off
offcross-
off
cross-
off
cross-
off
offoffcross-
off
offoffoffoffcross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
oncross-
on
High Tide
/ height (m)
6:19PM
1.79
6:46AM
1.79
7:13PM
1.88
7:41AM
1.81
8:06PM
1.93
8:37AM
1.81
8:59PM
1.93
9:34AM
1.78
9:55PM
1.89
10:30AM
1.74
10:54PM
1.82
11:26AM
1.68
11:54PM
1.75
Low Tide
/ height (m)
12:07PM
0.19
12:32AM
0.17
1:00PM
0.16
1:29AM
0.15
1:52PM
0.14
2:26AM
0.13
2:46PM
0.13
3:24AM
0.11
3:43PM
0.12
4:21AM
0.11
4:40PM
0.12
5:19AM
0.11
5:38PM
0.12
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Sunrise6:39--6:39--6:41--6:41--6:41--6:43--6:43--
Sunset-5:36--5:35--5:34--5:31--5:30--5:30--5:28-
cloud
cloud
part cloud
rain showers
clear
part cloud
rain showers
part cloud
light rain
light rain
light rain
part cloud
clear
rain showers
cloud
light rain
rain showers
part cloud
part cloud
light rain
mod rain
Rain (mm)
---3--1-423--1-12--16
Temp. °C201919192116191916161616191612131413141414
Feels °C (?)17161518201418171412141515117101110111211
  • 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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