Mahia Reef Surf Break

Lat Long: 39.09° S 177.87° E

Mahia Reef Surf Forecast and Surf Report

Issued: 11 am 13 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mahia Reef sea temperature is
13.2° C
1.0° 

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 13 Jul 2026:

  • Best quality surf: Saturday 18 Jul, 9AM (local time) - 5ft (1.6m), 14s period, SE swell with glassy winds.
  • Most powerful swell: Friday 17 Jul, 9PM (local time) - 11ft (3.5m), 12s period, S swell with 3,420 kJ wave energy.
  • Next surfable swell (1★+): Saturday 18 Jul, 9AM (local time) - 5ft (1.6m), 14s period with SE 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 9AM. The primary swell is predicted to be 1.6m and 14s period with a secondary swell of 1.8m and 10s. 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 3.5m 12s and forecast to arrive on Friday (Jul 17) 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 1.1m 5s period and expected on Sunday (Jul 19) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Sat 18th Jul)5ft (1.6m) 14s
Best Surf 9AM (Sat 18th Jul)5ft (1.6m) 14s
Most Powerful 9PM (Fri 17th Jul)11ft (3.5m) 12s

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


Short Range Forecast

Some drizzle, heaviest during Tue morning. Very mild (max 16°C on Wed afternoon, min 10°C on Mon morning). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Sat night. Very mild (max 17°C on Thu afternoon, min 9°C on Fri night). Winds increasing (calm on Sat morning, strong winds from the SSW by Sat night).

Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
3
3
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SE
9
0.8
S
10
0.7
S
13
0.5
S
12
0.4
SSW
12
0.3
ESE
10
0.4
ESE
11
0.4
ESE
11
0.5
ESE
13
0.7
ESE
15
0.8
ESE
16
1.2
SE
16
1.5
SE
16
1.7
SE
16
3.5
SSW
12
1.6
SE
14
1.5
SE
14
1.2
SE
13
0.9
S
18
1
S
18
2.1
S
15
Wave Graph
Metric surfscale
Energy kJ
135
122
166
73
45
20
48
47
96
196
343
767
1115
1438
3107
1006
849
511
550
627
1950
Wind (km/h)
10
NNW
10
NNE
15
N
20
N
15
NNW
15
NW
10
NW
0
SE
15
NW
20
WNW
20
WNW
25
W
30
SSW
25
SW
10
WNW
5
NNW
15
NE
30
SW
35
SSW
25
SSW
30
SW
Wind State
cross-on
cross
cross
cross
cross-on
cross-on
cross-on
glassy
on
on
on
on
cross
cross
on
glassy
cross-off
cross
cross
cross
cross
High Tide
4:14PM1.90m
4:46AM1.78m
5:14PM1.94m
5:45AM1.79m
6:14PM1.96m
6:44AM1.79m
7:11PM1.96m
7:42AM1.78m
8:06PM1.93m
8:36AM1.77m
8:58PM1.88m
9:27AM1.75m
9:50PM1.81m
Low Tide
10:00AM0.22m
10:38PM0.19m
11:01AM0.15m
11:37PM0.13m
11:59AM0.08m
00:36AM0.09m
12:53PM0.04m
1:34AM0.06m
1:47PM0.03m
2:28AM0.06m
2:42PM0.06m
3:21AM0.09m
3:36PM0.13m
clear
clear
part cloud
rain showers
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
rain showers
part cloud
cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:24
7:24
7:24
7:24
7:22
7:22
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:02
5:02
5:04
5:05
5:06
5:06
5:07
 mm
1
1
1
Temp °C
12
14
12
15
15
14
15
16
14
15
17
12
12
11
10
11
13
12
10
10
10
Feels °C
9
11
8
11
12
10
13
15
11
10
13
7
5
5
7
8
10
8
1
3
3
  • 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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