
Surf Forecasts:
Lighthouse Reef surf forecast from 2 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 9PM (local time) - 4.5ft (1.4m), 12s period, SE swell with cross-offshore winds.
- Most powerful swell: Tuesday 4 Aug, 3AM (local time) - 5.5ft (1.7m), 12s period, SSE swell with 847 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 12PM (local time) - 1.5ft (0.4m), 15s period with SSE 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 Monday (Aug 03) at 12PM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.4m and 12s. 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 1.7m 12s and forecast to arrive on Tuesday (Aug 04) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Monday (Aug 03) at 9PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 3rd Aug) | 1.5ft (0.4m) 15s |
| Best Surf | 9PM (Tue 4th Aug) | 4.5ft (1.4m) 12s |
| Most Powerful | 3AM (Tue 4th Aug) | 5.5ft (1.7m) 12s |
Table - best surf conditions forecast for Lighthouse Reef over the next 16 days.
The Lowdown
Alright, let’s get this out there. It’s Rusty here.
First up, we’ve got a bit of a mixed bag for the coming weeks. The early part isn’t anything to write home about, but there are a couple of solid windows that should get the pulse going. The main break to keep an eye on is Lighthouse Reef.
The water temp is sitting right around 50°, which is about 2° warmer than usual for this time of year. Not a shocker, but it’s a bit of a treat.
The first real chance of anything decent kicks off on Monday, 3 August. The morning has a weak 2ft swell from the southeast, but with a 12-second period, it’s more of a groundswell feel. The wind is light offshore from the WNW, so it’s clean. The combined energy is pretty weak at 137, so it’s not going to be pumping. The afternoon brings a bigger but messy 2ft swell with a 15-second period, but the wind swings onshore and gets lumpy. Not worth the paddle.
Tuesday, 4 August sees a jump in size to 5ft from the SSE, with a 12-second period and a solid 578 energy. The morning has a cross-offshore wind, keeping it clean. The afternoon gets bigger at 5ft, but the wind goes cross-shore and it gets lumpy. The morning is the better call here.
Now, Wednesday, 5 August is where things start to look good. The morning is a standout: 4ft from the SE, 11-second period, and clean offshore wind from the WNW at only 3 mph. Combined energy is 332, which is moderate. This is a clean, fun session. The afternoon sees a weak onshore breeze, so stick to the morning.
Thursday, 6 August is a solid option too. The morning has 3ft from the SE, 9-second period, and light cross-offshore wind. It’s clean and easy. The afternoon gets a bit smaller and cross-onshore, so the morning wins.
The rest of the first week into the second is pretty flat. From Friday, 7 August through to Monday, 10 August, the swell drops to 1ft or less, with very weak energy (between 29 and 52). You’re looking at a gap of several days with no real surf. It’s a quiet spell, but the forecasts can change.
Then, hold onto your board. Tuesday, 11 August brings a pulse. The morning has 7ft from the ENE, but with a short 7-second period. That’s a lot of energy (591) and it’s clean with a light cross-offshore wind. This is going to be a punchy, powerful wave. It’s big enough that only experienced surfers should be out there. The afternoon drops to 4ft, still from the east, but the wind goes cross-shore and the quality drops.
Wednesday, 12 August and Thursday, 13 August are small again, with 2ft to 3ft from the east. Clean in the mornings, but just not enough push.
Friday, 14 August is the real standout of the whole forecast. The morning has 6ft from the ENE, 9-second period, and a light cross-offshore wind. The energy is strong at 675. It’s clean, powerful, and should have some proper shape. The afternoon gets bigger, 8ft from the same direction, but with rain and a cross-shore wind. The morning is the absolute winner here.
Saturday, 15 August is a write-off. The wind is strong and cross-shore, with rain. The swell is decent in size, but the conditions are trash.
Sunday, 16 August morning has 5ft from the SE, 8-second period, and a light cross-offshore wind. It’s clean and has 291 energy. The afternoon picks up a bit more energy but the wind picks up too.
Monday, 17 August is a solid bookend. The morning has 5ft from the SE, 10-second period, with a light offshore wind. Clean and 415 energy. The afternoon has 4ft from the ESE, 11-second period, and still offshore. Both sessions are good, but the morning is cleaner.
Tuesday, 18 August rounds it out with smaller 3ft swell from the ESE, but the wind is light and glassy in the afternoon. A nice easy finish.
Overall, the best on offer is the Friday, 14 August morning session at Lighthouse Reef. That 6ft ENE swell with clean offshore wind is the one to aim for. The Tuesday, 11 August morning is a close second for the crew who want something punchy.
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Mon morning, min 3°C on Wed night). Winds decreasing (strong winds from the SSW on Mon night, calm by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 10°C on Sat morning, min 3°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | |||||||||||||||
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 15 | SE 15 | SSE 12 | SSE 12 | SSE 12 | SE 11 | SE 11 | SE 11 | SE 10 | SE 9 | SE 14 | SE 11 | SE 12 | SE 13 | SE 12 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 11 |
Wave Graph | |||||||||||||||||||||
66 | 223 | 754 | 575 | 658 | 418 | 332 | 282 | 160 | 106 | 116 | 116 | 122 | 82 | 39 | 36 | 35 | 31 | 21 | 16 | 30 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | cross | cross-off | cross | cross-off | off | on | off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off | glassy | cross-on | cross-off | cross-off | on | cross-off |
High Tide | 6:43PM1.98m | 7:10AM2.05m | 7:32PM1.95m | 8:02AM2.08m | 8:23PM1.96m | 8:59AM2.11m | 9:17PM2.00m | 10:01AM2.17m | 10:16PM2.09m | 10:59AM2.25m | 11:17PM2.21m | 11:53AM2.34m | 00:16AM2.35m | ||||||||
Low Tide | 12:50PM0.56m | 1:02AM0.67m | 1:35PM0.57m | 1:48AM0.69m | 2:20PM0.63m | 2:40AM0.69m | 3:10PM0.71m | 3:35AM0.70m | 4:11PM0.76m | 4:32AM0.71m | 5:15PM0.75m | 5:30AM0.71m | 6:12PM0.68m | ||||||||
7:48 | — | — | 7:47 | — | — | 7:46 | — | — | 7:43 | — | — | 7:43 | — | — | 7:41 | — | — | 7:39 | — | — | |
— | 5:34 | — | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 8 | 8 | 6 | 7 | 7 | 5 | 6 | 5 | 5 | 6 | 5 | 5 | 9 | 9 | 10 | 10 | 8 | 9 | 9 | 9 |
Feels °C | 9 | 1 | 3 | -4 | -2 | 1 | 2 | 2 | 2 | 1 | 2 | 2 | 1 | 6 | 6 | 8 | 7 | 5 | 7 | 7 | 7 |
Swell 1 Height (m) Direction Period (s) | SE 12 | SE 15 | E 14 | SSE 12 | E 13 | SE 11 | SE 11 | SE 11 | SE 10 | SE 9 | SE 9 | SE 11 | SE 12 | SE 13 | SE 12 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 11 |
66 | 223 | 4 | 575 | 3 | 418 | 332 | 282 | 160 | 106 | 106 | 116 | 122 | 82 | 39 | 36 | 35 | 31 | 21 | 13 | 30 | |
Swell 2 Height (m) Direction Period (s) | SE 15 | SE 12 | SE 15 | E 13 | — | — | — | SE 18 | ESE 16 | ESE 15 | SE 14 | SE 17 | SSE 13 | SSE 12 | SE 11 | ESE 12 | ESE 12 | SE 12 | ESE 12 | ESE 13 | E 13 |
57 | 6 | 8 | 3 | — | — | — | 12 | 26 | 22 | 47 | 97 | 35 | 14 | 30 | 15 | 15 | 6 | 14 | 16 | 4 | |
Swell 3 Height (m) Direction Period (s) | SE 19 | E 14 | — | — | — | — | — | SE 18 | — | SE 15 | SE 14 | ESE 14 | SE 16 | SSE 15 | ENE 4 | E 4 | S 18 | SE 18 | SE 14 | — | S 16 |
14 | 4 | — | — | — | — | — | 12 | — | 78 | 116 | 36 | 10 | 22 | 3 | 1 | 6 | 13 | 8 | — | 5 | |
Wind waves Height (m) Direction Period (s) | NW 3 | S 4 | SSE 12 | SW 4 | SSE 12 | — | — | — | — | — | — | NNE 2 | NE 3 | ENE 4 | — | — | — | — | — | — | — |
2 | 17 | 754 | 8 | 658 | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 240 | 191 | 162 | 162 | 0 | 0 | 87 | 0 | 0 | 109 | 0 | 0 | 109 | 0 | 0 | 157 | 0 | 87 | 109 | 89 |
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.











