
Surf Forecasts:
Larsen Street surf forecast from 6 Sep 2026:
- Best quality surf: Friday 11 Sep, 3AM (local time) - 11ft (3.5m), 19s period, WSW swell with offshore winds.
- Most powerful swell: Friday 11 Sep, 6AM (local time) - 11ft (3.5m), 18s period, WSW swell with 8,764 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 12PM (local time) - 5.5ft (1.7m), 14s period with WSW 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 (Sep 07) at 12PM. The primary swell is predicted to be 1.7m and 14s period with a secondary swell of 1.5m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Larsen Street in the next 16 days are 3.5m 18s and forecast to arrive on Friday (Sep 11) at 6AM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 7th Sep) | 5.5ft (1.7m) 14s |
| Best Surf | 3AM (Fri 11th Sep) | 11ft (3.5m) 19s |
| Most Powerful | 6AM (Fri 11th Sep) | 11ft (3.5m) 18s |
Table - best surf conditions forecast for Larsen Street over the next 16 days.
Short Range ForecastModerate rain (total 10mm), heaviest on Mon morning. Very mild (max 11°C on Tue morning, min 8°C on Tue night). Winds increasing (calm on Mon night, fresh winds from the SW by Wed night). | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Fri afternoon. Very mild (max 11°C on Thu morning, min 6°C on Thu night). Winds increasing (calm on Fri morning, near gales from the SW by Sat morning). | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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) | WSW 14 | WSW 14 | WSW 13 | WSW 12 | W 12 | W 11 | WSW 10 | WSW 11 | WSW 11 | WSW 16 | WSW 15 | WSW 19 | WSW 18 | WSW 17 | WSW 16 | W 13 | WSW 13 | WSW 15 | WSW 16 | WSW 16 | WSW 16 |
Wave Graph | |||||||||||||||||||||
1294 | 988 | 811 | 558 | 537 | 256 | 426 | 485 | 452 | 1255 | 3115 | 7409 | 8544 | 7242 | 4457 | 3622 | 5045 | 2139 | 1943 | 1740 | 3712 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | glassy | glassy | cross | off | glassy | cross-on | cross-on | cross-off | cross | off | cross-off | off | cross | cross | cross | cross | cross-off | cross | cross-off |
High Tide | 7:27PM2.55m | 8:04AM2.55m | 8:28PM2.74m | 8:59AM2.72m | 9:19PM2.91m | 9:46AM2.86m | 10:04PM3.04m | 10:28AM2.95m | 10:46PM3.09m | 11:08AM2.99m | 11:25PM3.08m | 11:46AM2.96m | 00:03AM2.99m | ||||||||
Low Tide | 1:06PM0.63m | 1:45AM0.46m | 2:11PM0.46m | 2:44AM0.27m | 3:04PM0.28m | 3:34AM0.10m | 3:52PM0.13m | 4:18AM-0.01m | 4:35PM0.04m | 4:59AM-0.05m | 5:15PM0.01m | 5:38AM-0.02m | 5:55PM0.06m | ||||||||
6:50 | — | — | 6:48 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | |
— | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:17 | — | — | 6:19 | — | — | 6:20 | — | |
mm | 4 | 1 | — | — | — | — | — | — | 5 | 1 | — | — | — | 7 | 3 | 2 | 1 | — | — | — | 3 |
Temp °C | 9 | 10 | 10 | 11 | 11 | 11 | 10 | 11 | 11 | 11 | 10 | 8 | 9 | 11 | 11 | 10 | 10 | 10 | 10 | 11 | 12 |
Feels °C | 5 | 6 | 7 | 9 | 9 | 8 | 8 | 8 | 9 | 3 | 2 | 4 | 8 | 6 | 3 | -2 | -2 | 2 | 4 | 7 | 6 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 13 | WSW 12 | W 12 | W 11 | WSW 10 | WSW 11 | WSW 11 | WSW 16 | WSW 20 | WSW 19 | WSW 18 | WSW 17 | WSW 16 | W 13 | WSW 13 | WSW 11 | W 10 | WSW 16 | — |
1294 | 988 | 811 | 558 | 537 | 256 | 426 | 485 | 452 | 1255 | 969 | 7409 | 8544 | 7242 | 4457 | 3622 | 5045 | 1685 | 739 | 1740 | — | |
Swell 2 Height (m) Direction Period (s) | NW 9 | NNW 8 | NW 8 | NW 8 | NW 8 | NW 9 | WSW 20 | WSW 19 | WSW 18 | WSW 22 | — | — | — | — | — | — | WSW 11 | WSW 15 | WSW 16 | — | — |
316 | 165 | 135 | 102 | 72 | 62 | 221 | 295 | 326 | 480 | — | — | — | — | — | — | 107 | 2139 | 1943 | — | — | |
Swell 3 Height (m) Direction Period (s) | N 8 | WNW 9 | W 20 | NW 5 | W 22 | WNW 10 | NW 8 | NW 8 | NNW 8 | — | — | — | — | — | — | — | — | — | — | — | — |
90 | 119 | 7 | 14 | 38 | 31 | 33 | 16 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 3 | — | — | — | — | — | — | — | — | W 6 | WSW 15 | — | — | — | — | WSW 10 | — | — | — | WSW 9 | WSW 16 |
5 | — | — | — | — | — | — | — | — | 141 | 3115 | — | — | — | — | 1442 | — | — | — | 755 | 3712 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 4 | 0 | 0 | 17 | 0 | 0 | 195 | 9 | 155 | 247 | 0 | 0 | 0 | 187 | 190 | 283 | 80 | 73 | 9 | 0 |
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.










