Blacks Reef surf break

Blacks Reef surfForecast / Gisborne and Mahia / New Zealand

information circle12 Day Weather and Surf, issued 6 am Monday 15 Dec 2025 NZDT
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
19.3° C
(Which is 2.3°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Blacks Reef this week:

The surf forecast for Blacks Reef over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Dec 16) at 7PM. The primary swell is predicted to be 0.4m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Blacks Reef in the next 12 days are 2.4m 9s and forecast to arrive on Thursday (Dec 18) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Tuesday (Dec 16) at 4PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Tue 16th Dec)1.5ft (0.4m) 11s
Best Surf 4AM (Thu 18th Dec)6.5ft (2.0m) 9s
Most Powerful 1AM (Thu 18th Dec)8ft (2.4m) 9s

Table - best surf conditions forecast for Blacks Reef over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 2mm), mostly falling on Tue night. Warm (max 25°C on Tue afternoon, min 12°C on Wed night). Winds decreasing (fresh winds from the S on Wed afternoon, light winds from the WNW by Wed night).

Days 3-6 Weather Summary Some drizzle, heaviest during Sat morning. Warm (max 23°C on Fri afternoon, min 14°C on Thu night). Wind will be generally light.

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
3
3
0
2
1
1
0
0
0
2
1
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.4
SSE
0.4
SE
0.2
SSE
0.4
SE
0.4
SSE
0.4
SE
0.8
SW
1.5
SSW
2.4
SSW
1.8
S
1.6
S
1.2
S
0.9
S
0.7
S
0.3
SSW
0.8
SSW
1.2
S
1.1
S
1
S
0.9
SSW
0.9
SSW
Period(s) (?)781111111166999888144688810
Wave
Graph
(?)Metric surfscale
Energy kJ (?)17171229442938130918551416199109604123101173137115160
Wind
(km/h)
10
NE
25
NE
15
NNW
15
N
20
NNW
15
WNW
20
SW
30
S
10
WSW
5
SSE
25
ENE
10
NW
10
NW
5
N
25
NW
20
S
15
SSE
0
ESE
5
SSE
20
ENE
10
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off
cross-
off
offcross-
off
crosscross-
on
oncross-
on
glasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
oncross-
on
glassglasscross-
off
cross-
off
High Tide
/ height (m)
3:10PM
1.52
3:44AM
1.54
4:00PM
1.51
4:32AM
1.57
4:48PM
1.51
5:17AM
1.59
5:33PM
1.52
6:01AM
1.61
6:16PM
1.52
6:45AM
1.62
6:59PM
1.51
7:28AM
1.62
7:44PM
1.50
Low Tide
/ height (m)
9:23PM
0.40
9:57AM
0.46
10:11PM
0.47
10:46AM
0.50
11:00PM
0.51
11:32AM
0.52
11:48PM
0.52
12:15PM
0.52
12:32AM
0.51
12:58PM
0.51
1:13AM
0.48
1:42PM
0.48
1:53AM
0.44
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Sunrise5:35--5:37--5:37--5:37--5:37--5:37--5:37--
Sunset-8:30--8:30--8:30--8:31--8:31--8:32--8:32-
clear
clear
part cloud
clear
part cloud
rain showers
clear
rain showers
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
rain showers
clear
part cloud
clear
part cloud
part cloud
Rain (mm)
-----1-1-------1-----
Temp. °C212418242519171714181918222319171615181816
Feels °C (?)172014202118131012141717212315141314151415
  • 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 12 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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