
Surf Forecasts:
Lighthouse Reef surf forecast from 6 Aug 2026:
- Best quality surf: Thursday 6 Aug, 9PM (local time) - 2.5ft (0.8m), 10s period, SE swell with cross-offshore winds.
- Most powerful swell: Friday 7 Aug, 6AM (local time) - 2.5ft (0.8m), 12s period, SE swell with 178 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 9PM (local time) - 2.5ft (0.8m), 10s period with SE swell.
Best Forecast Surf Conditions for Lighthouse Reef this week:
The surf forecast for Lighthouse Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 06) at 9PM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.4m and 17s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Lighthouse Reef in the next 16 days are 0.8m 12s and forecast to arrive on Friday (Aug 07) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Friday (Aug 07) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 6th Aug) | 2.5ft (0.8m) 10s |
| Best Surf | 9PM (Thu 6th Aug) | 2.5ft (0.8m) 10s |
| Most Powerful | 6AM (Fri 7th Aug) | 2.5ft (0.8m) 12s |
Table - best surf conditions forecast for Lighthouse Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’ve got a 16-day window for Lighthouse Reef, and it’s a real mixed bag. The surf is mostly small and inconsistent, with a few windows that could be worth a paddle if you time it right.
The first solid option kicks off on Thursday morning, August 6th. We’re looking at a clean 3ft swell from the SE, with a period of 9 seconds. The wind is light offshore from the NW, and the water temperature is sitting at 49°, which is about 2° warmer than usual for this time of year – nothing drastic, just a touch of warmth. The combined wave energy is moderate at 205. It’s a small, clean wave, perfect for a longboard or a fun twinny. Crowds are possible here, so be ready to share.
The rest of the first week is pretty bleak. We’ve got a long stretch of poor surf from Thursday afternoon all the way through to the end of the weekend. The swell drops off, and the wind goes onshore or cross-shore, making it choppy and messy. There’s a brief moment on Sunday morning, August 9th, with glassy conditions, but the swell is tiny and weak (48 energy). Not worth getting wet for.
The second week doesn’t offer much hope either. The waves stay small, mostly in the 1ft to 3ft range, with a lot of onshore wind. The best of a bad lot comes on Friday morning, August 14th, with a glassy 2ft wave from the east, but the energy is still low at 98. It’s surfable, but you’ll be scratching for anything decent.
Now, here’s the real standout, and it’s a long way off, so keep your expectations in check. Tuesday morning, August 18th, shows a solid pulse of energy. The swell jumps to 3ft, but it’s from the SSE with a very long period of 16 seconds. The combined energy is a powerful 886 – that’s strong stuff. The wind is cross-shore from the south at 9 mph, which will chop it up a bit. This is a long-period groundswell, so it’s going to wrap in with real power. It’s a beach and reef setup, so that long period might make it break a bit straight, but if you find the right bank, it could be a serious session. This one is for advanced surfers only; 3ft with that energy and period will punch well above its height.
After that, there’s a quick return to form. Wednesday morning, August 19th, offers a clean 2ft wave from the SE with a 12-second period. The wind is offshore from the WNW, and the energy is 223. It’s a clean, fun wave to finish the run, but nothing like the Tuesday morning surge.
The final few days into August 20th and 21st are back to tiny, weak, and forgettable surf. Overall, the best on offer is the Tuesday morning, August 18th session, but it’s a long-range call and the wind is a little messy. Thursday morning, August 6th, is your safest bet for clean, small waves.
Rusty.
Short Range ForecastMostly dry. Mild temperatures (max 8°C on Sat afternoon, min 3°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 12°C on Sun afternoon, min 6°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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) | SE 9 | SE 10 | SE 10 | SE 13 | SE 13 | ESE 11 | SE 10 | SE 10 | SE 10 | E 5 | E 7 | E 7 | SE 9 | SE 8 | SE 12 | SE 11 | ENE 5 | ENE 6 | E 7 | SE 8 | ESE 7 |
Wave Graph | |||||||||||||||||||||
106 | 154 | 96 | 138 | 134 | 51 | 34 | 33 | 31 | 21 | 86 | 22 | 14 | 25 | 38 | 33 | 28 | 140 | 81 | 86 | 71 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | cross-off | cross-off | cross | glassy | glassy | cross-on | cross | glassy | glassy | cross-off | glassy | cross-on | glassy | cross-off | cross-on | cross | cross-off | cross-on | off |
High Tide | 9:17PM2.00m | 10:01AM2.17m | 10:16PM2.09m | 10:59AM2.25m | 11:17PM2.21m | 11:53AM2.34m | 00:16AM2.35m | 12:48PM2.41m | 1:10AM2.46m | 1:48PM2.46m | 2:00AM2.52m | 2:52PM2.50m | 2:52AM2.52m | ||||||||
Low Tide | 3:10PM0.71m | 3:35AM0.70m | 4:11PM0.76m | 4:32AM0.71m | 5:15PM0.75m | 5:30AM0.71m | 6:12PM0.68m | 6:29AM0.68m | 7:03PM0.61m | 7:25AM0.61m | 7:53PM0.56m | 8:21AM0.51m | 8:44PM0.56m | ||||||||
7:43 | — | — | 7:43 | — | — | 7:41 | — | — | 7:39 | — | — | 7:39 | — | — | 7:37 | — | — | 7:35 | — | — | |
— | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 4 | 5 | 5 | 4 | 7 | 7 | 7 | 8 | 8 | 9 | 12 | 8 | 9 | 10 | 8 | 8 | 10 | 9 | 9 | 11 | 8 |
Feels °C | 0 | 1 | 2 | 0 | 4 | 3 | 5 | 5 | 6 | 7 | 10 | 6 | 7 | 8 | 6 | 5 | 6 | 6 | 7 | 9 | 5 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 10 | SE 10 | SE 13 | SE 13 | ESE 11 | SE 10 | SE 10 | E 5 | E 5 | E 7 | E 7 | ESE 6 | SE 8 | SE 8 | SE 7 | E 4 | E 6 | E 7 | ESE 7 | ESE 7 |
106 | 154 | 96 | 138 | 134 | 51 | 34 | 33 | 11 | 21 | 86 | 22 | 14 | 25 | 22 | 19 | 6 | 31 | 81 | 86 | 71 | |
Swell 2 Height (m) Direction Period (s) | ESE 15 | SE 19 | SE 16 | SSE 12 | SSE 11 | SE 11 | ESE 12 | ESE 12 | SE 10 | SE 9 | ESE 12 | SE 9 | SE 9 | E 6 | SE 12 | SE 11 | SE 7 | SE 7 | S 16 | SE 8 | SE 14 |
22 | 14 | 66 | 29 | 13 | 29 | 15 | 14 | 24 | 13 | 14 | 13 | 12 | 3 | 38 | 33 | 12 | 12 | 5 | 67 | 8 | |
Swell 3 Height (m) Direction Period (s) | SE 15 | SE 13 | SE 14 | — | — | E 4 | — | S 18 | SE 12 | ESE 12 | SSE 9 | SE 11 | SE 14 | ESE 14 | S 16 | S 19 | ESE 11 | SE 11 | S 10 | S 15 | S 17 |
77 | 128 | 48 | — | — | 1 | — | 6 | 6 | 14 | 8 | 5 | 7 | 19 | 5 | 7 | 23 | 5 | 2 | 4 | 6 | |
Wind waves Height (m) Direction Period (s) | — | — | NNE 2 | — | ENE 3 | — | — | — | ENE 5 | — | — | — | — | — | — | NE 3 | ENE 5 | ENE 6 | — | — | — |
— | — | 1 | — | 1 | — | — | — | 31 | — | — | — | — | — | — | 4 | 28 | 140 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 109 | 0 | 0 | 89 | 0 | 87 | 136 | 138 | 87 | 0 | 87 | 87 | 87 | 0 | 0 | 138 | 138 | 0 | 136 | 0 |
Best forecast wave conditions in Canterbury | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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Information about the Lighthouse Reef Surf forecast
The above surf forecast table for Lighthouse Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lighthouse Reef can be found by selecting the local surf guide option on the grey menu. Our Lighthouse Reef 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 (Lighthouse Reef) 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 Lighthouse Reef 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.
Lighthouse Reef is 4 km (2 miles) from the city of Timaru. If you plan a holiday in Canterbury, look for hotels and other accommodation in Timaru. Timaru has rooms for a wide range of budgets as well as car hire and transport links.











