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Midshore Bay Surf Forecast
/ Canterbury (28 surf breaks) /
Surf Forecasts:
Midshore Bay surfForecast / Canterbury / New Zealand
12 Day Weather and Surf, issued 11 am Tuesday 16 Sep 2025 NZST
Best Forecast Surf Conditions for Midshore Bay this week:
The surf forecast for Midshore Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 16) at 3PM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.2m and 14s. Another secondary swell of 0.1m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Midshore Bay in the next 12 days are 0.7m 16s and forecast to arrive on Friday (Sep 19) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Sunday (Sep 21) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Tue 16th Sep) | 1.5ft (0.5m) 11s |
| Best Surf | 9PM (Fri 19th Sep) | 2.5ft (0.7m) 16s |
| Most Powerful | 9PM (Fri 19th Sep) | 2.5ft (0.7m) 16s |
Table - best surf conditions forecast for Midshore Bay over the next 12 days.
Short Range Forecast Moderate rain (total 12mm), heaviest on Thu night. Very mild (max 18°C on Wed afternoon, min 5°C on Thu night). Winds increasing (calm on Tue morning, strong winds from the NW by Thu morning). | Days 3-6 Weather Summary Mostly dry. Very mild (max 17°C on Sun afternoon, min 5°C on Fri night). Winds increasing (light winds from the E on Fri morning, strong winds from the NNW by Sat night). | ||||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 16 | 11 | 17 | 11 | 10 | 10 | 12 | 14 | 12 | 11 | 11 | 14 | 12 | 14 | 14 | 17 | 10 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 29 | 84 | 65 | 40 | 13 | 4 | 6 | 39 | 188 | 136 | 89 | 204 | 85 | 82 | 123 | 45 | 197 | 45 | 39 | 46 | 40 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | off | off | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross- off | off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | off |
High Tide / height (m) | 12:02PM 2.00 | 12:28AM 1.86 | 1:00PM 1.99 | 1:24AM 1.86 | 1:53PM 1.99 | 2:16AM 1.86 | 2:43PM 1.97 | 3:04AM 1.86 | 3:29PM 1.94 | 3:50AM 1.85 | 4:13PM 1.91 | 4:35AM 1.84 | 4:57PM 1.87 | ||||||||
Low Tide / height (m) | 6:18PM 0.22 | 6:37AM 0.18 | 7:15PM 0.23 | 7:33AM 0.18 | 8:08PM 0.23 | 8:25AM 0.19 | 8:58PM 0.23 | 9:15AM 0.20 | 9:45PM 0.23 | 10:03AM 0.22 | 10:30PM 0.24 | 10:49AM 0.25 | 11:14PM 0.26 | ||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||
| Sunrise | 6:28 | - | - | 6:26 | - | - | 6:26 | - | - | 6:24 | - | - | 6:22 | - | - | 6:20 | - | - | 6:18 | - | - |
| Sunset | - | 6:17 | - | - | 6:19 | - | - | 6:20 | - | - | 6:21 | - | - | 6:22 | - | - | 6:22 | - | - | 6:23 | - |
 | |  |  | | | |  |  | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 3 | 9 | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 14 | 16 | 17 | 18 | 15 | 15 | 14 | 7 | 9 | 10 | 7 | 14 | 15 | 15 | 16 | 17 | 11 | 15 | 15 | 12 |
| Feels °C (?) | 12 | 12 | 8 | 11 | 13 | 13 | 9 | 10 | 4 | 6 | 5 | 2 | 7 | 8 | 8 | 10 | 13 | 5 | 11 | 11 | 7 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Canterbury
The wind is still cross-off at Midshore Bay (moderate winds from the NE at Christchurch International Airport 46 km from Midshore Bay). 0.6m 15s groundswell from the SSE with a 0.3m 11s groundswell from the ESE and a 0.2m 7s swell from the SSE. 3 swells combining to make bigger set waves.
46 km away, 1 h 13 min ago
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 Midshore 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 Midshore Bay Surf forecast
The above surf forecast table for Midshore Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Midshore Bay can be found by selecting the local surf guide option on the grey menu. Our Midshore 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 (Midshore 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 Midshore 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.
Are you planning a holiday in Canterbury? If you are looking for accommodation near Midshore Bay, camping, hotels and holiday cottages in Canterbury, consider staying in Christchurch which is 50 km (31 miles) away.
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