Surf Forecasts:
Banks Peninsula - Raupo Bay surf forecast from 5 Sep 2026:
- Best quality surf: Saturday 12 Sep, 12AM (local time) - 13ft (4.0m), 10s period, SSW swell with offshore winds.
- Most powerful swell: Saturday 12 Sep, 12PM (local time) - 11ft (3.5m), 13s period, SSW swell with 4,324 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 3AM (local time) - 3.5ft (1.0m), 17s period with SSW swell.
Best Forecast Surf Conditions for Banks Peninsula - Raupo Bay this week:
The surf forecast for Banks Peninsula - Raupo Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 06) at 3AM. The primary swell is predicted to be 1.0m and 17s period with a secondary swell of 0.9m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Banks Peninsula - Raupo Bay in the next 16 days are 3.5m 13s and forecast to arrive on Saturday (Sep 12) at 12PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Friday (Sep 11) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 6th Sep) | 3.5ft (1.0m) 17s |
| Best Surf | 12AM (Sat 12th Sep) | 13ft (4.0m) 10s |
| Most Powerful | 12PM (Sat 12th Sep) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Banks Peninsula - Raupo Bay over the next 16 days.
The Lowdown
Right then, surfers, Rusty here. Let’s have a look at what’s cooking for Banks Peninsula.
The next few days are a bit of a write-off, to be honest. We’ve got a gap of nothing much happening from now until the end of the week. The swell is small and the wind is all over the shop, so don’t bother rushing down. The wait is worth it though, because next week is where the magic happens.
Let’s start with the first proper highlight. Tuesday, 8th September morning, it’s looking a bit ordinary, but by the afternoon at Raupo-Bay (Banks Peninsula), the wind drops to glassy and the swell picks up to 4ft from the ENE. The water is sitting at 51°F which is a touch warmer than normal for this time of year. It’s a beginner spot and fairly consistent, so this is a solid window for a clean, cruisy session.
Now, the real standout. Friday, 11th September afternoon. The wind goes glassy, and we’ve got a 5ft SSW groundswell with a period of 18 seconds. That’s a long period, meaning the waves will have real shape and power. The combined energy is a strong 1622, and it’s an excellent call for experienced surfers. This is one for the folks who know what they’re doing. The long period will mean longer waits between sets, but the quality will be there.
Saturday, 12th September is a big one, but it’s a bit of a beast. The morning is a clean offshore 13ft SSW swell, but the energy is a massive 3937. That’s too big for this break, even for the experts. The same goes for the afternoon with an 12ft swell. It’s a solid, powerful swell, but it’s going to be a lot of water moving around. Not for the faint-hearted.
The following week has a few more moments. Sunday, 13th September morning has a clean 10ft S swell with offshore winds, but again, it’s big. The afternoon stays clean with a 8ft swell. Then Monday, 14th September morning turns glassy again with a 6ft SSW groundswell and a 15-second period, giving another excellent window for experienced surfers.
By the time we get to Sunday, 20th September, the wind is glassy in the morning with a 6ft SSE swell. It’s decent, but by then the real fire has passed.
Overall, don’t waste your time this week. The 11th, 13th, and 14th are your best bets. Get out there when the wind is light and the swell is solid.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Sun morning. Very mild (max 13°C on Sat morning, min 7°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Thu night. Very mild (max 11°C on Wed morning, min 5°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
AM | 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) | SSW 12 | SSW 10 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 10 | SSW 9 | SSW 10 | ENE 8 | ENE 9 | E 9 | E 9 | E 8 | N 5 | SSW 13 | SSW 15 | SSW 18 | S 19 | SSW 18 | SSW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 485 | 163 | 510 | 297 | 216 | 142 | 154 | 147 | 154 | 112 | 248 | 325 | 209 | 136 | 78 | 139 | 186 | 570 | 713 | 1609 | 3752 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | on | cross-on | glassy | cross-on | cross-on | on | cross | glassy | on | cross-off | cross-on | glassy | off |
High Tide | 10:55AM1.95m | 11:21PM1.83m | 11:56AM2.00m | 00:21AM1.87m | 12:55PM2.05m | 1:18AM1.93m | 1:50PM2.10m | 2:13AM1.98m | 2:43PM2.13m | 3:06AM2.01m | 3:34PM2.13m | 3:57AM2.03m | 4:24PM2.11m | ||||||||
Low Tide | 5:13PM0.29m | 5:32AM0.21m | 6:11PM0.26m | 6:31AM0.16m | 7:09PM0.21m | 7:28AM0.11m | 8:05PM0.16m | 8:24AM0.06m | 8:59PM0.11m | 9:18AM0.04m | 9:51PM0.08m | 10:11AM0.04m | 10:41PM0.08m | ||||||||
 |  |  |  | |  |  | | | | |  | | |  | |  |  | | | | |
 | 6:48 | — | — | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — |
 | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — |
mm | — | — | — | 6 | 8 | 3 | — | — | — | — | — | — | — | — | — | — | 3 | 4 | — | 7 | — |
Temp °C | 13 | 13 | 11 | 8 | 9 | 7 | 8 | 9 | 8 | 8 | 8 | 8 | 11 | 11 | 9 | 10 | 11 | 6 | 11 | 14 | 8 |
Feels °C | 6 | 6 | 6 | 4 | 5 | 3 | 5 | 6 | 4 | 6 | 6 | 5 | 8 | 8 | 6 | 7 | 8 | 3 | 8 | 12 | 0 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 10 | SSW 17 | SSW 12 | SSW 9 | SSW 9 | SSW 10 | SSW 9 | SSW 10 | ENE 8 | ENE 9 | E 9 | E 9 | E 8 | E 8 | NNE 6 | SSW 15 | SSW 18 | SSW 10 | N 5 | SSW 11 |
| kJ | 485 | 163 | 510 | 156 | 156 | 100 | 154 | 147 | 154 | 112 | 248 | 325 | 209 | 136 | 78 | 55 | 186 | 570 | 305 | 32 | 1945 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSW 14 | SE 9 | SSW 17 | SSW 17 | NE 9 | SSW 15 | E 6 | SSW 14 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | NNW 5 | S 4 | NE 6 | S 19 | ENE 7 | S 16 |
| kJ | 8 | 64 | 3 | 297 | 216 | 62 | 73 | 45 | 20 | 76 | 68 | 50 | 33 | 21 | 10 | 23 | 9 | 9 | 713 | 5 | 1145 |
Swell 3 Height (m) Direction Period (s) | NE 10 | SSE 9 | NE 10 | NNE 5 | NNE 8 | SSW 16 | NE 6 | SSW 15 | — | SW 13 | SW 13 | S 21 | S 19 | SSW 19 | SSW 18 | SSW 13 | ESE 8 | ESE 8 | NE 8 | NE 15 | NE 14 |
| kJ | 4 | 8 | 4 | 22 | 6 | 142 | 10 | 42 | — | 7 | 7 | 9 | 30 | 36 | 30 | 139 | 21 | 12 | 9 | 8 | 68 |
Wind waves Height (m) Direction Period (s) | N 4 | N 5 | NNW 5 | SE 4 | ENE 5 | ESE 6 | ESE 6 | — | E 7 | — | — | — | NNE 3 | NE 4 | N 5 | NNW 5 | NE 8 | SSW 6 | N 4 | SSW 18 | SSW 10 |
| kJ | 10 | 102 | 35 | 14 | 66 | 100 | 55 | — | 57 | — | — | — | 4 | 20 | 78 | 54 | 74 | 164 | 36 | 1609 | 3752 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 133 | 16 | 30 | 143 | 30 | 30 | 16 | 30 | 16 | 0 | 16 | 16 | 30 | 11 | 0 | 16 | 0 | 16 | 0 | 22 |
Best forecast wave conditions in Canterbury | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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Information about the Banks Peninsula - Raupo Bay Surf forecast
The above surf forecast table for Banks Peninsula - Raupo Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Banks Peninsula - Raupo Bay can be found by selecting the local surf guide option on the grey menu. Our Banks Peninsula - Raupo 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 (Banks Peninsula - Raupo 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 Banks Peninsula - Raupo 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.
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