Tahunanui bar Surf Break

Lat Long: 41.26° S 173.24° E

Tahunanui bar Surf Forecast and Surf Report

Issued: 5 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tahunanui bar sea temperature is
12.5° C
0.2° 

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


Tahunanui bar surf forecast from 18 Aug 2026:

  • Best quality surf: Saturday 22 Aug, 9AM (local time) - 3.5ft (1.1m), 6s period, NW swell with glassy winds.
  • Most powerful swell: Sunday 23 Aug, 12AM (local time) - 5ft (1.5m), 7s period, NNW swell with 212 kJ wave energy.
  • Next surfable swell (1★+): Saturday 22 Aug, 9AM (local time) - 3.5ft (1.1m), 6s period with NW swell.

Best Forecast Surf Conditions for Tahunanui bar this week:

The surf forecast for Tahunanui bar over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 22) at 9AM. The primary swell is predicted to be 1.1m and 6s period with a secondary swell of 0.7m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Tahunanui bar in the next 16 days are 1.5m 7s and forecast to arrive on Sunday (Aug 23) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 8s period and expected on Sunday (Aug 23) at 6AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Sat 22nd Aug)3.5ft (1.1m) 6s
Best Surf 9AM (Sat 22nd Aug)3.5ft (1.1m) 6s
Most Powerful12AM (Sun 23rd Aug)5ft (1.5m) 7s

Table - best surf conditions forecast for Tahunanui bar over the next 16 days.


Short Range Forecast

Mostly dry. Very mild (max 11°C on Tue morning, min 5°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 11mm), heaviest on Sat night. Very mild (max 13°C on Sat night, min 7°C on Fri morning). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
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
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
NW
14
0.1
NW
14
0.1
NW
14
0.1
NW
17
0.1
NW
16
0.1
NW
16
0.1
NW
15
0.1
NW
15
0.1
N
14
0.1
N
16
1
NW
5
0.4
NNW
4
1.1
NW
6
1
NNW
6
1.5
NNW
7
0.9
N
6
0.8
NNW
7
0.8
NNW
7
0.6
NNW
7
0.8
NNW
5
0.2
NNW
15
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
0
0
0
0
4
5
57
6
72
68
212
64
65
62
37
31
23
Wind (km/h)
5
SW
10
NNE
10
SSW
5
S
5
NNE
10
S
5
SSW
10
NNE
5
SSW
10
SW
10
N
20
SW
5
SSW
0
NW
20
NNW
20
WSW
15
WSW
15
SW
10
WNW
20
WSW
15
WSW
Wind State
cross-off
on
off
glassy
cross-on
off
glassy
on
off
cross-off
on
cross-off
glassy
glassy
on
cross-off
cross-off
cross-off
cross
cross-off
cross-off
High Tide
1:19PM3.88m
1:37AM3.78m
1:55PM3.67m
2:18AM3.51m
2:35PM3.45m
3:08AM3.25m
3:23PM3.24m
4:11AM3.03m
4:34PM3.07m
5:30AM2.94m
6:21PM3.05m
6:49AM3.02m
7:41PM3.22m
Low Tide
7:07PM0.95m
7:39AM1.04m
7:44PM1.24m
8:21AM1.28m
8:33PM1.52m
9:11AM1.50m
9:52PM1.75m
10:12AM1.67m
11:30PM1.80m
11:30AM1.74m
00:46AM1.71m
12:54PM1.66m
1:42AM1.54m
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
light rain
mod rain
clear
rain showers
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:13
7:11
7:11
7:09
7:07
7:05
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:47
5:49
5:50
5:51
5:52
5:52
5:53
 mm
3
7
1
Temp °C
11
11
7
10
10
9
10
10
8
11
12
8
9
11
13
13
13
10
13
13
12
Feels °C
8
8
4
7
7
6
8
7
6
8
9
4
7
10
9
7
8
5
9
8
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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Information about the Tahunanui bar Surf forecast

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

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