Mahia Spit surf break

Mahia Spit surfForecast / Gisborne and Mahia / New Zealand

information circle16 Day Weather and Surf, issued 5 am Saturday 18 Apr 2026 NZST
Forecast update in hr  min  s Forecast update imminent
Mahia Spit surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mahia Spit sea temperature is
17.6° C
(Which is normal for this time of year)

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 Monday (Apr 20) at 6AM. The primary swell is predicted to be 0.9m and 8s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mahia Spit in the next 16 days are 1.7m 9s and forecast to arrive on Sunday (Apr 19) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 10s period and expected on Wednesday (Apr 22) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Mon 20th Apr)3ft (0.9m) 8s
Best Surf 6AM (Mon 20th Apr)3ft (0.9m) 8s
Most Powerful12PM (Sun 19th Apr)5.5ft (1.7m) 9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 7mm), mostly falling on Mon night. Warm (max 20°C on Sun afternoon, min 15°C on Mon morning). Winds decreasing (strong winds from the NNE on Sat night, calm by Sun night).

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Tue afternoon. Very mild (max 19°C on Wed morning, min 12°C on Wed afternoon). Winds increasing (light winds from the NNE on Tue afternoon, strong winds from the SW by Wed afternoon).

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
1
0
0
0
0
1
0
1
0
1
1
1
0
1
0
Swell
Height Map
Wave Height (m) & direction (?)
0.4
ESE
0.7
NNE
1.2
NE
1.4
NE
1.7
NNE
0.9
ENE
0.9
ENE
1
ENE
1.1
ENE
1.3
NE
1.4
NE
1.1
ENE
1
E
0.9
E
0.6
E
0.5
E
0.6
E
0.6
E
0.6
E
0.5
E
0.4
E
Period(s) (?)1257898878889111010999889
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4625143277411888110115721622121122917768395253493323
Wind
(km/h)
30
N
30
N
35
N
25
N
25
N
15
NNW
10
N
20
NNE
30
N
15
NNE
20
NNE
15
N
30
N
35
WSW
35
WSW
25
WSW
25
SW
25
SW
25
WSW
15
SSW
30
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
offoffoffoffoffcross-
off
offcross-
off
High Tide
/ height (m)
6:30PM
1.58
6:52AM
1.58
7:23PM
1.65
7:46AM
1.60
8:16PM
1.68
8:40AM
1.60
9:10PM
1.69
9:35AM
1.58
10:05PM
1.68
10:31AM
1.55
11:01PM
1.64
11:28AM
1.50
11:58PM
1.59
Low Tide
/ height (m)
12:17PM
0.06
12:46AM
0.08
1:10PM
0.02
1:40AM
0.05
2:02PM
-0.01
2:36AM
0.03
2:56PM
-0.01
3:31AM
0.03
3:51PM
0.01
4:27AM
0.05
4:46PM
0.05
5:24AM
0.08
5:42PM
0.09
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Sunrise6:37--6:39--6:39--6:41--6:41--6:43--6:43--
Sunset-5:36--5:34--5:32--5:31--5:30--5:29--5:28-
part cloud
cloud
cloud
rain showers
clear
part cloud
rain showers
part cloud
thunderstorm
light rain
light rain
part cloud
clear
rain showers
part cloud
rain showers
rain showers
part cloud
clear
light rain
light rain
Rain (mm)
---2--1-423--1-11--14
Temp. °C191919192018161817161717191613131514141514
Feels °C (?)141413161616131615131515149791099128
  • 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 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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