Mahia Reef surfForecast / Gisborne and Mahia / New Zealand

information circle12 Day Weather and Surf, issued 12 pm Sunday 07 Dec 2025 NZDT
Forecast update in hr  min  s Forecast update imminent
Mahia Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mahia Reef sea temperature is
17.4° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Mahia Reef this week:

The surf forecast for Mahia Reef over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 14) at 7AM. The primary swell is predicted to be 1.8m and 9s period with a secondary swell of 0.3m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mahia Reef in the next 12 days are 3.0m 9s and forecast to arrive on Saturday (Dec 13) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Wednesday (Dec 10) at 7PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sun 14th Dec)6ft (1.8m) 9s
Best Surf 7AM (Sun 14th Dec)6ft (1.8m) 9s
Most Powerful10AM (Sat 13th Dec)10ft (3.0m) 9s

Table - best surf conditions forecast for Mahia Reef over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 27°C on Mon morning, min 17°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Thu night. Warm (max 21°C on Wed morning, min 12°C on Fri night). Winds decreasing (fresh winds from the NE on Wed afternoon, calm by Thu morning).

Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SSW
0.8
SSW
0.6
S
0.6
S
0.5
S
0.5
S
0.3
E
0.4
ESE
0.7
E
0.8
E
0.7
E
0.5
E
0.4
SSE
0.3
SSE
0.3
SSE
0.3
SSE
0.1
S
2.3
SSW
3
SSW
2.5
S
2
S
Period(s) (?)131310101091114131212119999157999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2692157468454123641681841396329161616454712941098665
Wind
(km/h)
5
ENE
20
NE
10
NNE
5
W
20
ENE
15
WSW
10
SSW
20
NE
10
N
15
NE
40
NE
15
NNE
5
ESE
20
ENE
10
N
10
SSW
35
S
35
SSW
30
SW
30
SSW
10
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
off
crossglasscross-
off
cross-
on
crosscross-
off
cross-
on
cross-
off
cross-
off
crossglasscross-
off
cross-
on
crosscross-
off
crosscrosscrosscross-
on
High Tide
/ height (m)
8:36PM
1.85
9:00AM
2.00
9:33PM
1.82
9:56AM
1.94
10:27PM
1.76
10:50AM
1.86
11:19PM
1.69
11:44AM
1.77
12:10AM
1.62
12:37PM
1.68
1:04AM
1.56
1:28PM
1.61
1:59AM
1.53
Low Tide
/ height (m)
2:26PM
0.13
2:44AM
0.12
3:24PM
0.11
3:39AM
0.11
4:20PM
0.11
4:35AM
0.12
5:14PM
0.13
5:29AM
0.16
6:07PM
0.16
6:22AM
0.22
6:59PM
0.20
7:15AM
0.29
7:48PM
0.26
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunrise5:35--5:35--5:35--5:35--5:35--5:35--5:35--
Sunset-8:22--8:23--8:24--8:25--8:25--8:27--8:28-
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
clear
rain showers
cloud
part cloud
rain showers
rain showers
part cloud
part cloud
Rain (mm)
--------------2--21--
Temp. °C232321272624212020212119192018191714131414
Feels °C (?)212018242324201718181415181918181076710
  • 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 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 12 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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