Surf Forecasts:
Larsen Street surf forecast from 22 Aug 2026:
- Best quality surf: Monday 24 Aug, 3AM (local time) - 16ft (5.0m), 15s period, W swell with cross-shore winds.
- Most powerful swell: Monday 24 Aug, 12AM (local time) - 18ft (5.5m), 14s period, W swell with 10,811 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 3AM (local time) - 16ft (5.0m), 15s period with W swell.
Best Forecast Surf Conditions for Larsen Street this week:
The surf forecast for Larsen Street over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 24) at 3AM. The primary swell is predicted to be 5.0m and 15s period. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Larsen Street in the next 16 days are 5.5m 14s and forecast to arrive on Monday (Aug 24) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 8s period and expected on Sunday (Aug 23) at 6PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 24th Aug) | 16ft (5.0m) 15s |
| Best Surf | 3AM (Mon 24th Aug) | 16ft (5.0m) 15s |
| Most Powerful | 12AM (Mon 24th Aug) | 18ft (5.5m) 14s |
Table - best surf conditions forecast for Larsen Street over the next 16 days.
Short Range ForecastHeavy rain (total 50mm), heaviest during Sat night. Very mild (max 13°C on Sat night, min 11°C on Sun morning). Winds decreasing (near gales from the WSW on Sun morning, light winds from the WSW by Mon night). | Days 5-7 Weather SummaryHeavy rain (total 81mm), heaviest during Thu afternoon. Very mild (max 14°C on Tue night, min 11°C on Thu night). Winds decreasing (strong winds from the NNW on Thu afternoon, calm by Thu night). | ||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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) | WNW 8 | WNW 10 | W 12 | W 14 | W 15 | W 15 | W 15 | WSW 14 | WSW 14 | W 14 | W 14 | W 13 | W 13 | WNW 8 | WNW 10 | NW 10 | NW 9 | W 12 | W 11 |
Wave Graph | |||||||||||||||||||
1258 | 4412 | 6638 | 10811 | 7161 | 5258 | 3681 | 1294 | 862 | 2742 | 2179 | 1443 | 956 | 487 | 1970 | 2173 | 952 | 2128 | 1130 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | on | glassy | cross | cross |
High Tide | 6:52AM2.10m | 7:23PM2.20m | 7:55AM2.20m | 8:18PM2.33m | 8:44AM2.34m | 9:03PM2.49m | 9:26AM2.49m | 9:42PM2.64m | 10:03AM2.63m | 10:18PM2.78m | 10:38AM2.74m | 10:53PM2.88m | |||||||
Low Tide | 00:34AM0.96m | 1:04PM0.95m | 1:40AM0.87m | 2:03PM0.83m | 2:33AM0.73m | 2:51PM0.68m | 3:17AM0.56m | 3:32PM0.52m | 3:55AM0.39m | 4:08PM0.38m | 4:31AM0.25m | 4:44PM0.26m | |||||||
— | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | |
— | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:04 | — | |
mm | 24 | 4 | 2 | 3 | 2 | 2 | 6 | 4 | 3 | 9 | 1 | 1 | 3 | 4 | 24 | 39 | — | — | — |
Temp °C | 13 | 11 | 11 | 11 | 12 | 13 | 13 | 13 | 13 | 14 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 12 |
Feels °C | 5 | 0 | 0 | 0 | 6 | 9 | 8 | 7 | 8 | 10 | 12 | 10 | 13 | 10 | 7 | 8 | 12 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | W 16 | — | — | — | W 15 | W 15 | W 15 | WSW 14 | W 9 | W 14 | W 14 | W 13 | W 13 | WSW 12 | W 16 | NW 10 | NW 9 | W 12 | W 11 |
134 | — | — | — | 7161 | 5258 | 3681 | 1294 | 786 | 2742 | 2179 | 1443 | 956 | 308 | 134 | 2173 | 952 | 2128 | 1130 | |
Swell 2 Height (m) Direction Period (s) | W 20 | — | — | — | — | — | — | — | WSW 14 | — | — | — | W 19 | WSW 17 | — | WSW 14 | W 14 | NNW 9 | NNW 8 |
119 | — | — | — | — | — | — | — | 862 | — | — | — | 30 | 101 | — | 218 | 496 | 372 | 153 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 12 | W 24 | W 24 | W 23 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 107 | 11 | 45 | 274 | |
Wind waves Height (m) Direction Period (s) | WNW 8 | WNW 10 | W 12 | W 14 | — | — | — | W 8 | — | — | — | — | — | WNW 8 | WNW 10 | — | — | — | — |
1258 | 4412 | 6638 | 10811 | — | — | — | 720 | — | — | — | — | — | 487 | 1970 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 187 | 146 | 207 | 190 | 155 | 187 | 187 | 187 | 187 | 68 | 61 | 195 | 155 | 155 | 187 | 190 | 0 | 9 | 9 |
Best forecast wave conditions in West Coast South Island | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Larsen Street Surf forecast
The above surf forecast table for Larsen Street provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Larsen Street can be found by selecting the local surf guide option on the grey menu. Our Larsen Street 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 (Larsen Street) 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 Larsen Street 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 West Coast South Island? If you are looking for accommodation near Larsen Street, camping, hotels and holiday cottages in West Coast South Island, consider staying in Nelson which is 157 km (98 miles) away.











