Mahia Reef Surf Break

Lat Long: 39.09° S 177.87° E

Mahia Reef Surf Forecast and Surf Report

Issued: 5 am 17 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 16 Jul 2026:

  • Best quality surf: Saturday 18 Jul, 6PM (local time) - 7ft (2.1m), 23s period, S swell with glassy winds.
  • Most powerful swell: Monday 20 Jul, 9PM (local time) - 8ft (2.5m), 19s period, S swell with 4,835 kJ wave energy.
  • Next surfable swell (1★+): Friday 17 Jul, 9AM (local time) - 5ft (1.6m), 16s 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 Friday (Jul 17) at 9AM. The primary swell is predicted to be 1.6m and 16s period with a secondary swell of 0.7m and 7s. 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 2.5m 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 1.0m 6s period and expected on Thursday (Jul 23) at 3AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Fri 17th Jul)5ft (1.6m) 16s
Best Surf 6PM (Sat 18th Jul)7ft (2.1m) 23s
Most Powerful 9PM (Mon 20th Jul)8ft (2.5m) 19s

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


Short Range Forecast

Mostly dry. Very mild (max 12°C on Fri morning, min 8°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Mon afternoon. Very mild (max 13°C on Wed morning, min 10°C on Mon afternoon). Wind will be generally light.

Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
1
2
3
3
2
3
2
3
3
3
4
4
0
0
1
1
0
1
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
16
1.6
SE
16
1.6
SE
15
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
1.7
S
15
2.5
S
19
2.5
S
17
2.3
S
16
1.9
S
14
1.5
S
12
1.3
S
12
1.3
S
11
1.2
S
11
1.2
S
11
0.9
S
10
Wave Graph
Metric surfscale
Energy kJ
1350
1267
1171
992
1344
4264
2827
2142
1452
1466
1212
4586
3702
2529
1313
678
477
416
332
326
158
Wind (km/h)
5
NW
10
E
15
NNE
10
W
10
SSW
10
WNW
10
W
15
SSW
10
WNW
5
ESE
0
SSE
10
SSW
5
SSW
10
NNE
15
NNW
15
WNW
15
SSW
10
W
5
NW
15
NE
15
NW
Wind State
glassy
off
cross
on
cross
on
cross-on
cross
on
glassy
glassy
cross
glassy
cross-off
cross-on
on
cross
cross-on
cross-on
cross-off
cross-on
High Tide
8:06PM1.93m
8:36AM1.77m
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
Low Tide
1:47PM0.03m
2:28AM0.06m
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
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
light rain
light rain
light rain
rain showers
part cloud
part cloud
part cloud
clear
clear
clear
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:22
7:22
7:20
7:20
7:20
7:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:06
5:06
5:07
5:07
5:08
5:08
5:09
 mm
3
5
4
1
Temp °C
12
12
10
11
12
11
11
12
11
11
10
11
11
11
11
13
13
11
12
13
12
Feels °C
12
10
6
8
9
9
8
9
9
10
9
9
10
9
7
9
9
8
10
10
8
  • 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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