Colac Bay surf break

Colac Bay surfForecast / Southland / New Zealand

information circle12 Day Weather and Surf, issued 6 am Tuesday 10 Mar 2026 NZDT
Forecast update in hr  min  s Forecast update imminent
Colac Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Colac Bay sea temperature is
15.3° C
(Which is 2.4°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Colac Bay this week:

The surf forecast for Colac Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Mar 11) at 4AM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 0.1m and 11s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Colac Bay in the next 12 days are 3.0m 17s and forecast to arrive on Monday (Mar 16) at 4AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Saturday (Mar 14) at 1AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Wed 11th Mar)2.5ft (0.8m) 12s
Best Surf10AM (Sat 14th Mar)8ft (2.4m) 8s
Most Powerful 4AM (Mon 16th Mar)10ft (3.0m) 17s

Table - best surf conditions forecast for Colac Bay over the next 12 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 20mm), heaviest during Thu night. Warm (max 20°C on Thu morning, min 6°C on Tue morning). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Fri morning. Very mild (max 16°C on Sun morning, min 11°C on Fri night). Winds decreasing (strong winds from the W on Sat afternoon, light winds from the NNW by Sun night).

Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
1
0
0
1
2
3
3
1
1
0
!
0
!
!
!
!
!
!
4
Swell
Height Map
Wave Height (m) & direction (?)
1.3
WSW
1
WSW
0.9
WSW
0.7
WSW
0.6
WSW
0.8
WSW
1
W
1.5
W
1.5
W
1.1
W
1.6
W
0.2
S
2.4
W
3.5
W
3.5
W
3
W
3
W
3
WSW
2.5
WSW
2.4
WSW
1.7
WSW
Period(s) (?)13131212121211111110102481213141416161614
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5473562101451061952355665052395024472831003635357638634513336026621095
Wind
(km/h)
15
ENE
10
SE
5
NE
10
NE
5
S
10
NNE
15
N
20
NNW
5
SSW
20
W
30
W
25
W
35
WNW
50
W
35
W
35
WNW
35
WNW
20
WNW
10
NNW
15
SW
5
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
oncrosscrosscross-
on
cross-
off
cross-
off
offglasscross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
crossglass
High Tide
/ height (m)
7:18PM
2.06
7:38AM
1.99
8:23PM
2.00
8:48AM
1.94
9:29PM
1.98
9:54AM
1.94
10:28PM
2.01
10:51AM
2.00
11:20PM
2.07
11:39AM
2.09
12:05AM
2.16
12:22PM
2.20
12:48AM
2.26
Low Tide
/ height (m)
1:07PM
0.87
1:34AM
0.96
2:06PM
0.92
2:34AM
1.00
3:12PM
0.91
3:44AM
0.98
4:17PM
0.84
4:49AM
0.88
5:13PM
0.73
5:42AM
0.75
6:01PM
0.59
6:25AM
0.60
6:44PM
0.46
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Sunrise7:35--7:35--7:37--7:39--7:39--7:41--7:43--
Sunset-8:21--8:19--8:16--8:15--8:13--8:12--8:09-
cloud
cloud
clear
part cloud
part cloud
cloud
part cloud
light rain
rain showers
rain showers
rain showers
rain showers
light rain
rain showers
rain showers
part cloud
cloud
part cloud
heavy rain
mod rain
light rain
Rain (mm)
-------218213112---1284
Temp. °C111412161714201814151312141414161614131313
Feels °C (?)81010141514171414966556998111112
  • 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 Colac Bay Surf forecast

The above surf forecast table for Colac Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Colac Bay can be found by selecting the local surf guide option on the grey menu. Our Colac Bay 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 (Colac Bay) 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 Colac Bay 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.

Colac Bay is 30 km (19 miles) from Tuatapere. If you plan a holiday in Southland, look for hotels and other accommodation in Tuatapere. Tuatapere has rooms for a wide range of budgets as well as car hire and transport links.

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