Surf Forecasts:
Midshore Bay surf forecast from 20 Aug 2026:
- Best quality surf: Monday 24 Aug, 3AM (local time) - 2.5ft (0.8m), 17s period, SSE swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 6AM (local time) - 3ft (0.9m), 16s period, SSE swell with 397 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 3AM (local time) - 1.5ft (0.4m), 16s period with SSE swell.
Best Forecast Surf Conditions for Midshore Bay this week:
The surf forecast for Midshore Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 3AM. The primary swell is predicted to be 0.4m and 16s period with a secondary swell of 0.4m and 9s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Midshore Bay in the next 16 days are 0.9m 16s and forecast to arrive on Monday (Aug 24) at 6AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Aug 23) at 12PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Fri 21st Aug) | 1.5ft (0.4m) 16s |
| Best Surf | 3AM (Mon 24th Aug) | 2.5ft (0.8m) 17s |
| Most Powerful | 6AM (Mon 24th Aug) | 3ft (0.9m) 16s |
Table - best surf conditions forecast for Midshore Bay over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Sat night. Very mild (max 14°C on Sat morning, min 5°C on Thu night). Winds increasing (light winds from the ESE on Thu afternoon, strong winds from the NNW by Sat night). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Wed morning. Very mild (max 14°C on Tue morning, min 6°C on Sun night). Winds decreasing (strong winds from the NW on Tue afternoon, calm by Wed morning). | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SE 17 | SSE 16 | SSE 14 | SE 12 | SE 11 | SE 11 | SE 10 | E 14 | E 13 | E 14 | SSE 17 | SSE 15 | SE 13 | SE 11 | SE 9 | SSE 16 | SSE 17 | SSE 17 | SSE 17 | ENE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 72 | 104 | 76 | 37 | 31 | 30 | 16 | 15 | 14 | 14 | 57 | 382 | 170 | 57 | 25 | 25 | 29 | 28 | 29 | 54 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross-off |
High Tide | 11:07PM1.68m | 11:39AM1.75m | 00:00AM1.65m | 12:29PM1.75m | 00:49AM1.64m | 1:17PM1.76m | 1:35AM1.65m | 2:02PM1.78m | 2:19AM1.67m | 2:44PM1.81m | 3:01AM1.69m | 3:25PM1.83m | ||||||||
Low Tide | 4:56PM0.42m | 5:14AM0.40m | 5:47PM0.46m | 6:03AM0.43m | 6:36PM0.48m | 6:49AM0.44m | 7:23PM0.48m | 7:35AM0.42m | 8:08PM0.46m | 8:19AM0.39m | 8:52PM0.42m | 9:03AM0.35m | 9:35PM0.39m | |||||||
 |  |  | | |  | |  | | | | | |  | | | |  | |  | |
 | — | — | 7:13 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — |
 | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — |
mm | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — | 2 | 5 | 3 |
Temp °C | 10 | 8 | 10 | 13 | 7 | 14 | 13 | 12 | 13 | 12 | 9 | 12 | 13 | 9 | 14 | 14 | 13 | 11 | 8 | 8 |
Feels °C | 7 | 5 | 7 | 9 | 3 | 7 | 6 | 5 | 4 | 3 | 1 | 7 | 8 | 4 | 9 | 5 | 7 | 8 | 5 | 4 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | SSE 16 | SSE 14 | SE 12 | ENE 5 | SE 11 | SE 10 | SSE 10 | NE 9 | ENE 6 | SSE 17 | SSE 15 | SE 13 | SE 11 | SE 9 | SSE 16 | SSE 17 | SSE 17 | NE 5 | ENE 9 |
| kJ | 41 | 104 | 76 | 37 | 8 | 30 | 16 | 10 | 39 | 4 | 57 | 382 | 170 | 57 | 22 | 25 | 29 | 28 | 7 | 54 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | ESE 9 | E 10 | E 11 | SE 11 | E 9 | E 15 | E 14 | E 13 | E 14 | E 14 | E 13 | E 14 | NE 5 | E 14 | SSE 9 | E 14 | E 14 | SSE 17 | SSE 17 |
| kJ | 14 | 31 | 7 | 21 | 31 | 2 | 4 | 15 | 14 | 14 | 15 | 13 | 16 | 6 | 16 | 8 | 16 | 15 | 29 | 28 |
Swell 3 Height (m) Direction Period (s) | SE 17 | ESE 12 | SSE 16 | SE 15 | E 10 | E 15 | — | S 19 | SE 9 | NE 9 | S 10 | E 8 | — | E 14 | SSE 16 | ESE 14 | SE 10 | S 9 | ESE 14 | SSE 5 |
| kJ | 72 | 15 | 26 | 9 | 7 | 5 | — | 7 | 3 | 3 | 7 | 1 | — | 16 | 25 | 19 | 4 | 2 | 18 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | ENE 3 | NW 2 | N 3 | N 4 | NE 4 | WNW 3 | WNW 4 | W 4 | — | NNE 3 | NW 3 | NW 3 | NNW 3 | N 3 | N 3 | NNW 3 | SSW 3 |
| kJ | — | — | — | 4 | 1 | 8 | 14 | 29 | 3 | 36 | 13 | — | 4 | 2 | 2 | 3 | 8 | 8 | 4 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 32 | 0 | 0 | 0 | 9 | 46 | 82 | 20 | 116 | 116 | 9 | 0 | 9 | 0 | 9 | 46 | 9 | 9 | 84 | 0 |
Best forecast wave conditions in Canterbury | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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 16 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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