
Surf Forecasts:
Lyall Bay surf forecast from 11 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 9PM (local time) - 13ft (4.0m), 10s period, S swell with onshore winds.
- Most powerful swell: Wednesday 19 Aug, 6AM (local time) - 16ft (5.0m), 16s period, S swell with 11,610 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 6AM (local time) - 3.5ft (1.1m), 7s period with SE swell.
Best Forecast Surf Conditions for Lyall Bay this week:
The surf forecast for Lyall Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 12) at 6AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.3m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Lyall Bay in the next 16 days are 5.0m 16s and forecast to arrive on Wednesday (Aug 19) at 6AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Thursday (Aug 13) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Wed 12th Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 9PM (Tue 18th Aug) | 13ft (4.0m) 10s |
| Most Powerful | 6AM (Wed 19th Aug) | 16ft (5.0m) 16s |
Table - best surf conditions forecast for Lyall Bay over the next 16 days.
The Lowdown
Alright, let’s get into it. Lyall Bay is the only spot on the cards here, and it’s a bit of a mixed bag over the next two weeks. The water temp is sitting about average for this time of year, so nothing wild there.
The next few days are pretty flat and ordinary. Wednesday and Thursday the 12th and 13th see small, weak swell coming out of the SE and ESE, with heights maxing out around 3 ft. The wind is a light cross-off, so the surface is clean, but the waves are tiny and short-period (7–8 seconds), lacking any real push. Combined energy is weak (130 and 116), so you’re basically on a longboard or a foil.
Friday the 14th morning is interesting – glassy conditions with a 0.7 ft swell from the SSW, but a super long period of 15 seconds. That’s proper groundswell, but barely any height. The energy is very low (55). It’s more of a novelty than a proper session. Afternoon turns onshore, so that’s it.
Saturday the 15th and Sunday the 16th go downhill fast. Onshore winds build, and by Sunday morning we’ve got an 8 ft swell from the south with a near gale on top. Combined energy jumps to 951, but it’s a messy, blown-out mess. That’s expert-only territory if you’re brave enough, but honestly, it’s not surfable in any fun way.
Monday the 17th stays big and onshore, with 7 ft S swell and 6-second period. The energy is strong (539), but the wind is on it, making it a washing machine. Tuesday the 18th is more of the same – onshore and messy.
Now, the standout: Wednesday the 19th. This is a proper big swell event. We’re looking at a 15 ft S swell with a 16-second period on Wednesday morning, and the combined energy is massive (10,104). The wind is light and cross-off, so the surface will be clean. The problem is, this is way too big for Lyall Bay – it’s an expert-only beast, and even then, the wave quality will be challenging. Good luck if you’ve got the skills and a big board. The afternoon stays oversized at 12 ft.
Thursday the 20th through the 22nd sees the swell drop but still sizeable. Thursday morning is 10 ft S swell with light cross-onshore wind – still big, but more manageable for strong paddlers. By Saturday the 22nd, we get a clean offshore breeze from the NNW and 6 ft SSE swell, combined energy 687. That’s the best window for a decent session without the chaos. The wind is moderate offshore, so the waves will be clean and well-shaped. The period is 11 seconds, so it’s got some power.
The following week, from the 23rd onward, fades out. Sunday the 23rd has offshore winds but the swell drops to 5 ft, and then the wind cranks up to near gale strength from the 24th to the 26th, making it basically un-surfable. By the 27th, we’re back to tiny, onshore slop.
If you’re after the best of the best, I’d pin Saturday the 22nd as the top pick. Offshore wind, chest to head-high swell, clean conditions. The 19th is a monster, but only for the brave and the skilled.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Thu afternoon, min 8°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Sat afternoon. Very mild (max 12°C on Fri night, min 7°C on Sat night). Winds increasing (calm on Fri night, gales from the SSW by Sat night). | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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) | SSE 8 | SE 7 | SE 7 | ESE 9 | SE 8 | SE 9 | SE 9 | SE 11 | SSW 15 | SSW 15 | SSW 17 | SSW 16 | S 7 | S 8 | S 7 | S 7 | S 6 | S 7 | S 13 |
Wave Graph | |||||||||||||||||||
198 | 82 | 57 | 53 | 34 | 23 | 24 | 23 | 21 | 21 | 56 | 84 | 656 | 805 | 411 | 258 | 357 | 340 | 749 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | off | off | off | glassy | on | cross-on | on | on | on | on | on | on | on | cross-on | cross-on |
High Tide | 3:41AM1.60m | 4:02PM1.77m | 4:39AM1.60m | 5:01PM1.75m | 5:37AM1.60m | 6:00PM1.72m | 6:34AM1.61m | 6:58PM1.68m | 7:30AM1.63m | 7:55PM1.65m | 8:23AM1.64m | 8:49PM1.63m | |||||||
Low Tide | 9:22PM0.50m | 9:45AM0.47m | 10:24PM0.51m | 10:46AM0.45m | 11:28PM0.53m | 11:45AM0.45m | 00:28AM0.54m | 12:44PM0.47m | 1:24AM0.56m | 1:42PM0.51m | 2:17AM0.58m | 2:40PM0.55m | |||||||
— | 7:16 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | |
— | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 3 | 4 | — | — | — | — | — | — |
Temp °C | 10 | 12 | 12 | 11 | 13 | 14 | 13 | 13 | 13 | 12 | 12 | 10 | 8 | 8 | 8 | 8 | 9 | 9 | 9 |
Feels °C | 7 | 9 | 9 | 8 | 8 | 10 | 10 | 12 | 10 | 12 | 11 | 3 | -4 | -4 | -4 | -2 | 5 | 6 | 6 |
Swell 1 Height (m) Direction Period (s) | SSE 8 | SE 7 | SE 7 | ESE 9 | SE 8 | ESE 8 | ESE 8 | SE 7 | SE 7 | ESE 7 | SSW 17 | SSW 16 | ESE 8 | SSW 16 | SSW 15 | S 14 | SSW 15 | SSW 14 | S 13 |
198 | 82 | 57 | 53 | 34 | 23 | 22 | 14 | 14 | 21 | 56 | 84 | 14 | 138 | 123 | 106 | 167 | 207 | 749 | |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | S 10 | S 10 | SSE 9 | SE 9 | SE 9 | SE 11 | ESE 11 | SSW 4 | SE 11 | ESE 8 | SE 13 | SE 13 | SE 12 | SSW 12 | SE 15 | ESE 15 | SE 13 |
31 | 29 | 52 | 46 | 32 | 20 | 19 | 18 | 12 | 5 | 5 | 11 | 7 | 7 | 6 | 56 | 9 | 21 | 28 | |
Swell 3 Height (m) Direction Period (s) | S 13 | S 10 | SE 13 | SE 15 | SE 14 | SE 14 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | E 11 | E 10 | ESE 13 | E 8 | — | SE 16 | SE 12 | SE 11 | E 8 |
13 | 19 | 7 | 8 | 8 | 7 | 24 | 23 | 21 | 21 | 2 | 8 | 17 | 1 | — | 9 | 6 | 5 | 23 | |
Wind waves Height (m) Direction Period (s) | E 4 | NE 3 | ENE 2 | NNW 3 | NNW 4 | NNW 4 | NNW 3 | — | S 4 | ESE 3 | SE 7 | SSW 4 | S 7 | S 8 | S 7 | S 7 | S 6 | S 7 | — |
10 | 1 | 1 | 3 | 10 | 13 | 1 | — | 12 | 1 | 25 | 38 | 656 | 805 | 411 | 258 | 357 | 340 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 59 | 38 | 38 | 64 | 206 | 206 | 195 | 110 | 59 | 2 | 63 |
Best forecast wave conditions in Wellington | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
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Information about the Lyall Bay Surf forecast
The above surf forecast table for Lyall Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lyall Bay can be found by selecting the local surf guide option on the grey menu. Our Lyall 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 (Lyall 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 Lyall 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.
Lyall Bay is 6 km (4 miles) from the city of Wellington. If you plan a holiday in Wellington, look for hotels and other accommodation in Wellington. Wellington has rooms for a wide range of budgets as well as car hire and transport links.











