Mahia Spit Surf Break

Lat Long: 39.09° S 177.93° E

Mahia Spit Surf Forecast and Surf Report

Issued: 5 pm 15 Aug 2026 (local time)

Forecast update in  hr  min

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

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


Mahia Spit surf forecast from 15 Aug 2026:

  • Best quality surf: Thursday 20 Aug, 9PM (local time) - 3ft (0.9m), 10s period, SE swell with cross-offshore winds.
  • Most powerful swell: Sunday 16 Aug, 3AM (local time) - 6ft (1.9m), 8s period, E swell with 517 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 9PM (local time) - 3ft (0.9m), 10s period with SE swell.

Best Forecast Surf Conditions for Mahia Spit this week:

The surf forecast for Mahia Spit over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 9PM. The primary swell is predicted to be 0.9m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mahia Spit in the next 16 days are 1.9m 8s and forecast to arrive on Sunday (Aug 16) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 11s period and expected on Tuesday (Aug 18) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Thu 20th Aug)3ft (0.9m) 10s
Best Surf 9PM (Thu 20th Aug)3ft (0.9m) 10s
Most Powerful 3AM (Sun 16th Aug)6ft (1.9m) 8s

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


Short Range Forecast

Heavy rain (total 39mm), heaviest during Sun night. Very mild (max 13°C on Sat afternoon, min 8°C on Mon night). Winds increasing (moderate winds from the SSE on Sat afternoon, near gales from the SW by Tue morning).

Days 5-7 Weather Summary

Moderate rain (total 17mm), heaviest on Wed afternoon. Very mild (max 11°C on Wed night, min 8°C on Tue afternoon). Winds decreasing (near gales from the SSW on Tue night, light winds from the W by Fri morning).

Sat
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
0
0
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)
2.4
E
9
2.1
E
9
1.5
E
8
1.3
E
9
1.6
ESE
8
1.2
E
9
1.1
E
10
0.9
E
10
0.3
ENE
9
4
S
10
5
S
12
0.4
SE
14
0.3
SE
14
3.5
SSE
14
3
S
9
0.9
SE
8
0.8
SE
9
0.4
SE
8
0.3
SE
8
0.1
E
16
Wave Graph
Metric surfscale
Energy kJ
875
668
313
252
326
246
220
167
16
0
0
47
29
0
0
98
88
17
10
5
Wind (km/h)
25
SSE
25
S
45
SW
55
SW
50
S
45
S
40
S
35
SW
45
SW
55
SSW
60
SSW
45
SSW
50
SSW
35
SW
35
SW
25
SSW
15
NNW
5
W
10
ESE
10
WNW
Wind State
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
off
cross-off
cross-on
cross-off
cross
cross-off
High Tide
7:50PM1.64m
8:17AM1.54m
8:41PM1.61m
9:08AM1.52m
9:30PM1.55m
9:58AM1.49m
10:19PM1.49m
10:47AM1.45m
11:07PM1.43m
11:35AM1.41m
11:54PM1.37m
12:23PM1.37m
00:42AM1.32m
Low Tide
2:12AM0.03m
2:30PM0.06m
3:02AM0.05m
3:22PM0.10m
3:51AM0.09m
4:12PM0.15m
4:37AM0.14m
5:00PM0.21m
5:24AM0.20m
5:48PM0.27m
6:09AM0.26m
6:36PM0.32m
light rain
mod rain
light rain
mod rain
heavy rain
light rain
light rain
rain showers
light rain
rain showers
rain showers
light rain
rain showers
rain showers
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:52
6:50
6:50
6:48
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:31
5:32
5:32
5:34
5:35
 mm
5
9
2
6
11
2
2
1
1
3
6
2
5
1
Temp °C
13
13
11
10
10
9
9
9
9
9
9
10
10
11
10
11
10
10
11
11
Feels °C
9
9
2
2
0
-2
-1
-1
-4
-4
-4
-1
0
2
2
4
7
8
7
8
  • 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 Spit Surf forecast

The above surf forecast table for Mahia Spit provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mahia Spit can be found by selecting the local surf guide option on the grey menu. Our Mahia Spit 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 Spit) 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 Spit 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 Spit is 48 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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