Mahia Reef Surf Break

Lat Long: 39.09° S 177.87° E

Mahia Reef Surf Forecast and Surf Report

Issued: 11 am 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mahia Reef sea temperature is
13.0° C
1.2° 

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 18 Jul 2026:

  • Best quality surf: Saturday 18 Jul, 9PM (local time) - 7.5ft (2.3m), 21s period, S swell with glassy winds.
  • Most powerful swell: Monday 20 Jul, 9PM (local time) - 10ft (3.0m), 19s period, S swell with 5,557 kJ wave energy.
  • Next surfable swell (1★+): Saturday 18 Jul, 9PM (local time) - 7.5ft (2.3m), 21s period with S 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 Saturday (Jul 18) at 9PM. The primary swell is predicted to be 2.3m and 21s period with a secondary swell of 1.3m and 14s. 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 3.0m 19s and forecast to arrive on Monday (Jul 20) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Monday (Jul 20) at 3AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 18th Jul)7.5ft (2.3m) 21s
Best Surf 9PM (Sat 18th Jul)7.5ft (2.3m) 21s
Most Powerful 9PM (Mon 20th Jul)10ft (3.0m) 19s

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


Short Range Forecast

Some drizzle, heaviest during Sun night. Very mild (max 12°C on Sun morning, min 9°C on Sat morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 13°C on Thu afternoon, min 9°C on Tue night). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
3
3
2
2
1
3
2
4
4
3
1
2
2
0
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)
1.6
SE
14
1.1
S
24
2.3
S
20
2.1
S
18
1.9
S
17
1.7
S
16
1.8
S
15
2.3
S
19
3
S
18
2.3
S
16
2
S
15
1.7
S
13
1.3
S
12
1.2
S
12
1
S
11
0.5
S
13
0.5
S
13
0.4
SSW
11
0.3
SSE
11
0.2
SSE
10
0.3
S
9
Wave Graph
Metric surfscale
Energy kJ
992
1344
4264
2796
2117
1452
1428
3831
5098
2627
1699
1002
493
400
250
89
82
39
23
9
14
Wind (km/h)
5
WNW
10
SSW
5
NW
15
W
25
SSW
20
SSW
15
SSW
15
SSW
10
SSE
5
W
10
ENE
15
N
5
WNW
5
SSE
5
WNW
10
N
20
NE
10
NNW
15
NW
5
SE
10
WNW
Wind State
on
cross
cross-on
cross-on
cross
cross
cross
cross
cross-off
glassy
cross-off
cross-on
glassy
cross-off
on
cross
cross-off
cross-on
cross-on
cross-off
on
High Tide
8:58PM1.88m
9:27AM1.75m
9:50PM1.81m
10:17AM1.72m
10:42PM1.74m
11:07AM1.68m
11:33PM1.68m
11:59AM1.65m
00:24AM1.62m
12:54PM1.62m
1:14AM1.58m
1:46PM1.61m
2:03AM1.55m
Low Tide
2:42PM0.06m
3:21AM0.09m
3:36PM0.13m
4:12AM0.14m
4:30PM0.21m
5:02AM0.20m
5:23PM0.29m
5:51AM0.28m
6:15PM0.36m
6:39AM0.36m
7:08PM0.42m
7:27AM0.42m
8:00PM0.47m
clear
clear
clear
clear
part cloud
rain showers
cloud
part cloud
part cloud
clear
clear
cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:22
7:20
7:20
7:20
7:18
7:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:06
5:07
5:07
5:08
5:08
5:09
5:10
 mm
1
1
Temp °C
11
11
10
12
12
12
11
11
11
11
11
10
11
11
10
12
13
11
13
13
12
Feels °C
9
8
8
7
7
8
7
7
8
10
8
6
9
9
8
8
8
7
11
11
10
  • 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 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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