
Surf Forecasts:
Larsen Street surf forecast from 29 Jul 2026:
- Best quality surf: Friday 31 Jul, 9PM (local time) - 18ft (5.5m), 14s period, W swell with onshore winds.
- Most powerful swell: Friday 31 Jul, 3PM (local time) - 20ft (6.0m), 14s period, W swell with 14,017 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 12AM (local time) - 5ft (1.6m), 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 Thursday (Jul 30) at 12AM. The primary swell is predicted to be 1.6m and 14s period. 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 6.0m 14s and forecast to arrive on Friday (Jul 31) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Wednesday (Aug 05) at 9PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 30th Jul) | 5ft (1.6m) 14s |
| Best Surf | 9PM (Fri 31st Jul) | 18ft (5.5m) 14s |
| Most Powerful | 3PM (Fri 31st Jul) | 20ft (6.0m) 14s |
Table - best surf conditions forecast for Larsen Street over the next 16 days.
Short Range ForecastHeavy rain (total 54mm), heaviest during Thu afternoon. Very mild (max 13°C on Thu morning, min 6°C on Fri night). Winds increasing (light winds from the NNE on Wed afternoon, strong winds from the WNW by Fri afternoon). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sun night. Very mild (max 11°C on Mon morning, min 5°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | ||||||||||||||
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 14 | WSW 13 | NW 9 | WNW 10 | W 14 | W 14 | W 13 | W 10 | W 10 | W 9 | WSW 11 | WSW 19 | WSW 18 | WSW 10 | WSW 16 | WSW 15 | WSW 14 | WSW 14 |
Wave Graph | ||||||||||||||||||||
986 | 874 | 636 | 317 | 1187 | 3092 | 14017 | 8797 | 1980 | 789 | 267 | 158 | 148 | 959 | 1358 | 1322 | 974 | 1546 | 1121 | 572 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross-on | on | cross-on | cross-on | off | off | off | off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:46PM2.71m | 11:06AM2.65m | 11:22PM2.78m | 11:41AM2.70m | 11:57PM2.82m | 12:17PM2.72m | 00:32AM2.83m | 12:53PM2.71m | 1:08AM2.80m | 1:30PM2.67m | 1:47AM2.74m | 2:12PM2.61m | 2:31AM2.66m | |||||||
Low Tide | 4:59AM0.36m | 5:12PM0.36m | 5:35AM0.28m | 5:48PM0.31m | 6:10AM0.24m | 6:23PM0.29m | 6:46AM0.23m | 6:59PM0.30m | 7:23AM0.25m | 7:38PM0.35m | 8:04AM0.32m | 8:21PM0.43m | ||||||||
— | — | 7:45 | — | — | 7:43 | — | — | 7:43 | — | — | 7:41 | — | — | 7:41 | — | — | 7:39 | — | — | |
5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | |
mm | — | 1 | 3 | 14 | 12 | 4 | 8 | 12 | — | — | — | — | — | 1 | 1 | 2 | — | — | — | — |
Temp °C | 11 | 11 | 13 | 13 | 12 | 11 | 11 | 11 | 9 | 10 | 7 | 7 | 9 | 10 | 11 | 11 | 11 | 11 | 11 | 9 |
Feels °C | 9 | 8 | 7 | 7 | 7 | 1 | 2 | 6 | 3 | 6 | 3 | 4 | 6 | 6 | 6 | 7 | 7 | 7 | 6 | 6 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 14 | WNW 7 | NW 9 | — | — | W 14 | W 13 | W 10 | W 10 | W 9 | WSW 8 | W 7 | WSW 18 | WSW 10 | WSW 10 | WSW 15 | WSW 14 | WSW 14 |
986 | 874 | 636 | 268 | 1187 | — | — | 8797 | 1980 | 789 | 267 | 158 | 104 | 181 | 1358 | 1322 | 850 | 1546 | 1121 | 572 | |
Swell 2 Height (m) Direction Period (s) | — | — | W 17 | WSW 13 | WSW 14 | — | — | — | — | W 22 | WSW 12 | WSW 11 | WSW 11 | WSW 19 | — | WSW 17 | WSW 16 | — | W 20 | WSW 18 |
— | — | 220 | 317 | 500 | — | — | — | — | 9 | 179 | 158 | 133 | 959 | — | 1112 | 974 | — | 30 | 61 | |
Swell 3 Height (m) Direction Period (s) | — | — | W 24 | WSW 16 | W 18 | — | — | — | — | — | WSW 20 | WSW 19 | WSW 21 | WSW 11 | — | — | — | — | — | — |
— | — | 11 | 206 | 404 | — | — | — | — | — | 39 | 70 | 148 | 68 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | N 4 | N 6 | — | WNW 10 | W 14 | — | — | — | — | — | — | — | WSW 9 | — | — | — | — | N 4 |
— | — | 20 | 116 | — | 3092 | 14017 | — | — | — | — | — | — | — | 1121 | — | — | — | — | 9 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 13 | 0 | 53 | 187 | 148 | 187 | 187 | 73 | 0 | 0 | 0 | 0 | 17 | 0 | 9 | 9 | 0 | 0 | 9 | 0 |
Best forecast wave conditions in West Coast South Island | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










