Mahia Reef Surf Break

Lat Long: 39.09° S 177.87° E

Mahia Reef Surf Forecast and Surf Report

Issued: 11 pm 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mahia Reef sea temperature is
11.9°C
1.8° 

Mahia Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Mahia Reef surf forecast from 23 Aug 2026:

  • Best quality surf: Thursday 27 Aug, 12PM (local time) - 6ft (1.9m), 18s period, S swell with cross-offshore winds.
  • Most powerful swell: Thursday 27 Aug, 3PM (local time) - 7ft (2.1m), 18s period, S swell with 2,654 kJ wave energy.
  • Next surfable swell (1★+): Monday 24 Aug, 12PM (local time) - 4.5ft (1.3m), 8s period with SSW swell.

Best Forecast Surf Conditions for Mahia Reef this week:

The surf forecast for Mahia Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 24) at 12PM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.3m and 17s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mahia Reef in the next 16 days are 2.1m 18s and forecast to arrive on Thursday (Aug 27) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (Aug 28) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Mon 24th Aug)4.5ft (1.3m) 8s
Best Surf12PM (Thu 27th Aug)6ft (1.9m) 18s
Most Powerful 3PM (Thu 27th Aug)7ft (2.1m) 18s

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


Short Range Forecast

Mostly dry. Very mild (max 16°C on Tue afternoon, min 10°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Thu morning, min 12°C on Fri night). Wind will be generally light.

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
1
0
2
0
1
2
0
3
3
1
0
0
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)
0.4
SE
13
1.6
SSW
9
1.3
S
14
1.8
S
13
1.2
S
12
1.1
S
12
0.7
S
15
0.8
S
17
1
S
16
0.9
SSW
16
1.6
S
18
2.1
S
18
1.8
S
16
1.6
S
13
1.4
S
13
1.2
S
12
1
S
12
1.1
S
11
1
S
11
Wave Graph
Metric surfscale
Energy kJ
44
371
694
1021
439
347
215
386
494
454
1561
2654
1571
901
640
416
266
313
251
Wind (km/h)
25
W
10
W
15
ENE
10
NW
10
WNW
5
ENE
10
WNW
5
NW
15
NE
10
WNW
5
N
15
ENE
15
NNE
15
N
20
N
30
NNE
20
NW
10
NW
20
WNW
Wind State
on
on
cross-off
cross-on
on
glassy
on
cross-on
cross-off
on
glassy
cross-off
cross
cross-on
cross-on
cross
cross-on
cross-on
on
High Tide
2:10AM1.45m
2:43PM1.52m
2:58AM1.40m
3:28PM1.49m
3:46AM1.38m
4:13PM1.49m
4:33AM1.38m
4:59PM1.50m
5:22AM1.41m
5:47PM1.53m
6:11AM1.46m
6:33PM1.57m
Low Tide
8:23AM0.46m
8:57PM0.47m
9:11AM0.44m
9:43PM0.43m
10:00AM0.41m
10:29PM0.39m
10:48AM0.36m
11:15PM0.34m
11:32AM0.32m
00:03AM0.30m
12:17PM0.28m
00:49AM0.26m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:41
6:41
6:39
6:37
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:38
5:39
5:40
5:42
5:43
 mm
Temp °C
13
12
13
13
14
16
14
15
15
16
17
16
14
16
16
13
16
17
13
Feels °C
7
10
9
10
12
14
11
12
11
13
14
12
11
12
11
7
12
14
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 Mahia Reef Surf forecast

The above surf forecast table for Mahia Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mahia Reef can be found by selecting the local surf guide option on the grey menu. Our Mahia 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 (Mahia 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 Mahia 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.

Mahia Reef is 49 km (30 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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