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Colac Bay Surf Forecast
/ Southland (9 surf breaks) /
Colac Bay surfForecast / Southland / New Zealand
12 Day Weather and Surf, issued 5 pm Tuesday 20 May 2025 NZST
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 (May 21) at 12AM. The primary swell is predicted to be 2.3m and 13s period with a secondary swell of 0.1m and 14s. Another secondary swell of 0.1m and 9s is also forecast. 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 16s and forecast to arrive on Thursday (May 22) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 8s period and expected on Monday (May 26) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 21st May) | 7.5ft (2.3m) 13s |
| Best Surf | 12AM (Wed 21st May) | 7.5ft (2.3m) 13s |
| Most Powerful | 9AM (Thu 22nd May) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Colac Bay over the next 12 days.
Tue 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | Sun 01 | ||||||||||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 14 | 13 | 13 | 13 | 13 | 16 | 15 | 14 | 14 | 14 | 14 | 18 | 17 | 16 | 16 | 15 | 14 | 13 | 13 | 14 | 13 | 16 | 14 | 14 | 13 | 16 | 15 | 14 | 13 | 12 | 12 | 14 | 18 | 18 | 16 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 2826 | 1739 | 1335 | 1675 | 1675 | 3650 | 3157 | 2981 | 2343 | 2180 | 1576 | 3340 | 2588 | 1569 | 763 | 566 | 521 | 498 | 329 | 626 | 350 | 940 | 1796 | 1048 | 1693 | 4537 | 3731 | 2308 | 1521 | 1174 | 2188 | 2901 | 5789 | 5891 | 4772 | 2967 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | cross- off | off | off | cross- off | cross- off | off | off | off | cross- off | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | off | cross- off | off | off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 7:12PM 2.10 | 7:39AM 2.12 | 8:12PM 2.17 | 8:38AM 2.23 | 9:09PM 2.27 | 9:34AM 2.35 | 10:04PM 2.38 | 10:29AM 2.48 | 10:57PM 2.48 | 11:23AM 2.58 | 11:50PM 2.55 | 12:18PM 2.65 | 12:43AM 2.59 | 1:14PM 2.67 | 1:36AM 2.58 | 2:10PM 2.64 | 2:29AM 2.54 | 3:05PM 2.56 | 3:23AM 2.46 | 4:00PM 2.46 | 4:19AM 2.37 | 4:55PM 2.35 | 5:17AM 2.27 | |||||||||||||
Low Tide / height (m) | 1:33AM 0.70 | 2:06PM 0.58 | 2:33AM 0.64 | 3:03PM 0.52 | 3:32AM 0.56 | 3:59PM 0.45 | 4:27AM 0.46 | 4:55PM 0.40 | 5:20AM 0.37 | 5:49PM 0.37 | 6:12AM 0.30 | 6:43PM 0.35 | 7:05AM 0.25 | 7:36PM 0.36 | 7:59AM 0.24 | 8:29PM 0.40 | 8:53AM 0.27 | 9:22PM 0.45 | 9:48AM 0.33 | 10:16PM 0.52 | 10:44AM 0.41 | 11:11PM 0.60 | 11:41AM 0.49 | |||||||||||||
Tue 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | Sun 01 | ||||||||||||||||||||||||
| Sunrise | - | - | 8:08 | - | - | 8:10 | - | - | 8:11 | - | - | 8:11 | - | - | 8:12 | - | - | 8:15 | - | - | 8:15 | - | - | 8:15 | - | - | 8:17 | - | - | 8:18 | - | - | 8:18 | - | - | 8:19 |
| Sunset | 5:20 | - | - | 5:19 | - | - | 5:17 | - | - | 5:16 | - | - | 5:16 | - | - | 5:15 | - | - | 5:15 | - | - | 5:14 | - | - | 5:13 | - | - | 5:13 | - | - | 5:12 | - | - | 5:10 | - | - |
 |  |  |  | | | | | | | | | | |  | | | | | |  | |  | | |  |  | |  | |  | | | | | | |
Rain (mm) | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 1 | 7 | 9 | 4 | 4 | 3 | 1 | 17 | 2 | 6 | 6 | 6 | 6 | 9 | 2 |
| Temp. °C | 11 | 10 | 14 | 14 | 13 | 14 | 15 | 12 | 13 | 14 | 13 | 12 | 13 | 13 | 16 | 15 | 13 | 16 | 16 | 12 | 13 | 13 | 9 | 7 | 8 | 8 | 9 | 10 | 8 | 8 | 10 | 11 | 8 | 7 | 7 | 8 |
| Feels °C (?) | 6 | 5 | 9 | 8 | 7 | 8 | 8 | 6 | 9 | 11 | 10 | 10 | 12 | 8 | 11 | 10 | 8 | 14 | 14 | 8 | 10 | 9 | 5 | 3 | 4 | 0 | 1 | 2 | 2 | -3 | 0 | 1 | -3 | -4 | -4 | -2 |
Short Range Forecast: Some drizzle, heaviest during Wed afternoon. Very mild (max 15°C on Thu afternoon, min 9°C on Tue night). Mainly fresh winds. | Days 3-6 Weather Summary Mostly dry. Very mild (max 16°C on Sun morning, min 11°C on Fri night). Wind will be generally light. | Days 6-9 Weather Summary Heavy rain (total 30mm), heaviest during Wed morning. Very mild (max 16°C on Mon afternoon, min 7°C on Tue night). Winds increasing (light winds from the N on Wed morning, fresh winds from the WNW by Wed night). | Long Range Forecast: Heavy rain (total 56mm), heaviest during Thu night. Very mild (max 11°C on Fri night, min 6°C on Thu night). Mainly near gales. | |||||||||||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Colac Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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