Mahia Reef Surf Break

Lat Long: 39.09° S 177.87° E

Mahia Reef Surf Forecast and Surf Report

Issued: 5 am 14 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mahia Reef sea temperature is
12.2° C
1.6° 

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 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 6AM (local time) - 7ft (2.2m), 9s period, E swell with offshore winds.
  • Most powerful swell: Monday 17 Aug, 3PM (local time) - 16ft (5.0m), 11s period, S swell with 6,571 kJ wave energy.
  • Next surfable swell (1★+): Saturday 15 Aug, 6AM (local time) - 7ft (2.2m), 9s period with E 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 (Aug 15) at 6AM. The primary swell is predicted to be 2.2m and 9s period with a secondary swell of 0.1m and 13s. Another secondary swell of 0.2m and 16s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mahia Reef in the next 16 days are 5.0m 11s and forecast to arrive on Monday (Aug 17) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Saturday (Aug 15) at 12PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sat 15th Aug)7ft (2.2m) 9s
Best Surf 6AM (Sat 15th Aug)7ft (2.2m) 9s
Most Powerful 3PM (Mon 17th Aug)16ft (5.0m) 11s

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


Short Range Forecast

Heavy rain (total 38mm), heaviest during Fri afternoon. Very mild (max 14°C on Fri morning, min 8°C on Sun night). Winds increasing (light winds from the ESE on Sat morning, near gales from the SW by Sat night).

Days 4-6 Weather Summary

Moderate rain (total 18mm), heaviest on Mon morning. Very mild (max 11°C on Wed afternoon, min 8°C on Mon morning). Mainly near gales.

Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
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
2
2
0
0
0
0
0
0
0
0
0
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)
0.6
ESE
7
0.5
SE
7
2.2
E
8
2.3
E
9
2
E
8
2
ESE
9
3
SSW
7
4
SSW
10
5
S
11
5
S
11
5
S
11
4.5
S
11
4
S
10
4
S
10
3.5
S
10
4
S
11
4
S
11
3
S
10
2.4
S
9
2.3
S
9
1.9
S
9
Wave Graph
Metric surfscale
Energy kJ
36
25
582
769
559
603
792
3324
5174
5727
6571
4624
2749
2954
2243
3190
3184
1586
896
840
601
Wind (km/h)
25
NE
25
ENE
30
E
15
ESE
15
SSE
30
SW
50
SW
45
SSW
45
SSW
50
SSW
50
SSW
45
SSW
50
SSW
50
SW
45
SSW
40
SSW
40
SSW
35
SW
35
SW
30
SW
20
WSW
Wind State
cross-off
cross-off
cross-off
off
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
High Tide
6:49PM1.87m
7:19AM1.73m
7:41PM1.84m
8:11AM1.75m
8:31PM1.81m
9:00AM1.76m
9:21PM1.76m
9:46AM1.75m
10:10PM1.71m
10:33AM1.72m
10:59PM1.67m
11:22AM1.67m
11:48PM1.62m
Low Tide
12:32PM0.05m
1:11AM0.09m
1:24PM0.08m
2:02AM0.11m
2:17PM0.13m
2:51AM0.16m
3:09PM0.20m
3:39AM0.22m
4:01PM0.28m
4:27AM0.30m
4:51PM0.34m
5:15AM0.36m
5:41PM0.40m
cloud
light rain
heavy rain
light rain
light rain
light rain
mod rain
light rain
light rain
light rain
light rain
light rain
rain showers
rain showers
light rain
rain showers
part cloud
light rain
light rain
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:56
6:54
6:52
6:52
6:50
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:29
5:30
5:30
5:31
5:32
5:34
5:35
 mm
5
11
3
2
5
6
2
4
2
2
4
1
2
4
2
1
1
Temp °C
14
13
13
13
13
13
9
9
9
9
9
9
10
10
10
10
11
10
10
11
11
Feels °C
10
9
7
11
11
10
-1
-1
-1
-2
-3
-1
-1
-1
1
1
3
2
2
3
5
  • 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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