Mahia Reef surfForecast / Gisborne and Mahia / New Zealand

information circle12 Day Weather and Surf, issued 6 pm Monday 12 Jan 2026 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
20.7° C
(Which is 2.1°C warmer than normal for this time of year)


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 Monday (Jan 12) at 10PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 1.0m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mahia Reef in the next 12 days are 2.4m 8s and forecast to arrive on Sunday (Jan 18) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Tuesday (Jan 13) at 7PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+)10PM (Mon 12th Jan)3.5ft (1.0m) 14s
Best Surf10PM (Mon 12th Jan)3.5ft (1.0m) 14s
Most Powerful10PM (Sun 18th Jan)8ft (2.4m) 8s

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 21°C on Wed morning, min 17°C on Mon night). Winds decreasing (strong winds from the NE on Tue afternoon, calm by Wed morning).

Days 3-6 Weather Summary Heavy rain (total 38mm), heaviest during Fri afternoon. Warm (max 23°C on Thu afternoon, min 15°C on Sat night). Winds increasing (calm on Fri night, fresh winds from the S by Sat night).

Mon
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
2
0
0
0
1
1
1
0
0
1
0
1
1
1
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.6
S
1.2
S
1.4
S
1.4
S
1
S
0.9
S
0.8
S
0.7
S
0.5
S
0.5
S
0.5
S
0.5
S
0.5
S
0.5
S
0.5
S
0.5
S
0.1
S
2.1
S
2.4
S
2.3
SSE
2.3
SSE
Period(s) (?)16121112111010999131313131212118888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1884464415472231531138044429092878571692491723721758
Wind
(km/h)
20
SSE
15
E
25
NE
40
NE
15
N
5
NW
20
SE
10
ESE
15
NE
20
NNE
10
NE
10
W
10
SSE
10
S
10
S
25
S
25
S
25
S
30
S
30
S
35
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offcross-
off
cross-
off
crossglassoffoffcross-
off
crosscross-
off
cross-
on
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
2:14AM
1.58
2:32PM
1.55
3:05AM
1.58
3:20PM
1.53
3:52AM
1.57
4:06PM
1.50
4:38AM
1.57
4:52PM
1.48
5:22AM
1.57
5:37PM
1.46
6:07AM
1.57
6:23PM
1.45
6:52AM
1.58
Low Tide
/ height (m)
7:58PM
0.40
8:27AM
0.46
8:45PM
0.46
9:17AM
0.50
9:32PM
0.49
10:06AM
0.52
10:20PM
0.51
10:52AM
0.52
11:07PM
0.49
11:37AM
0.50
11:53PM
0.45
12:22PM
0.45
12:37AM
0.40
Mon
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Sunrise--5:56--5:56--5:58--5:58--6:00--6:01--6:03
Sunset8:36--8:36--8:36--8:36--8:35--8:35--8:34--
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
cloud
cloud
thunderstorm
mod rain
thunderstorm
thunderstorm
mod rain
light rain
mod rain
light rain
rain showers
light rain
rain showers
rain showers
Rain (mm)
---------461594612243
Temp. °C181719202021191820231920191818171616161516
Feels °C (?)1515141317221618192319212020181411111099
  • 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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