Larsen Street Surf Break

Lat Long: 41.75° S 171.49° E

Larsen Street Surf Forecast and Surf Report

Issued: 11 pm 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Larsen Street sea temperature is
13.2°C
0.6° 

Larsen Street surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Larsen Street surf forecast from 31 Aug 2026:

  • Best quality surf: Friday 4 Sep, 9PM (local time) - 15ft (4.5m), 10s period, W swell with cross-shore winds.
  • Most powerful swell: Monday 7 Sep, 9AM (local time) - 16ft (5.0m), 14s period, W swell with 10,846 kJ wave energy.
  • Next surfable swell (1★+): Thursday 3 Sep, 9AM (local time) - 8ft (2.4m), 10s 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 Thursday (Sep 03) at 9AM. The primary swell is predicted to be 2.4m and 10s period with a secondary swell of 0.7m and 14s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Larsen Street in the next 16 days are 5.0m 14s and forecast to arrive on Monday (Sep 07) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 3rd Sep)8ft (2.4m) 10s
Best Surf 9PM (Fri 4th Sep)15ft (4.5m) 10s
Most Powerful 9AM (Mon 7th Sep)16ft (5.0m) 14s

Table - best surf conditions forecast for Larsen Street over the next 16 days.


Short Range Forecast

Heavy rain (total 27mm), heaviest during Wed night. Very mild (max 15°C on Thu afternoon, min 9°C on Tue morning). Winds decreasing (near gales from the SW on Mon night, calm by Thu morning).

Days 5-7 Weather Summary

Heavy rain (total 67mm), heaviest during Sun morning. Very mild (max 15°C on Thu night, min 11°C on Fri afternoon). Winds increasing (light winds from the WNW on Sat afternoon, strong winds from the NNW by Sun morning).

Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
3
1
3
0
0
3
2
0
0
0
2
3
4
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
5
WSW
13
4.5
WSW
13
3
WSW
10
2.5
WSW
14
2.1
W
13
2.2
W
14
2.5
W
8
2.4
W
10
1.2
WSW
14
1.9
WSW
14
4
WNW
10
3.5
W
10
4
W
12
3.5
W
14
3.5
W
14
3.5
W
16
2.5
WSW
16
2.4
WSW
16
4
WNW
10
Wave Graph
Metric surfscale
Energy kJ
8897
6034
1699
2544
1609
1822
1021
1102
557
1284
2828
2625
4598
4656
4100
5471
3208
2746
3332
Wind (km/h)
50
SW
45
SW
25
SSW
25
SW
10
W
25
WNW
20
WNW
5
NW
10
N
40
NNW
30
WSW
40
WSW
25
SW
15
SW
10
WNW
25
N
45
NNW
25
WNW
45
WSW
Wind State
cross
cross
cross-off
cross
cross-on
cross-on
cross-on
glassy
cross-on
on
cross-on
cross
cross
cross
on
cross-on
cross-on
cross-on
cross
High Tide
00:40AM2.92m
1:02PM2.81m
1:21AM2.83m
1:44PM2.72m
2:07AM2.69m
2:33PM2.59m
3:02AM2.53m
3:33PM2.46m
4:11AM2.39m
4:49PM2.38m
5:34AM2.34m
6:12PM2.41m
Low Tide
6:55AM0.15m
7:12PM0.24m
7:36AM0.26m
7:57PM0.35m
8:24AM0.41m
8:50PM0.49m
9:20AM0.57m
9:54PM0.61m
10:30AM0.69m
11:12PM0.67m
11:50AM0.72m
00:33AM0.61m
light rain
light rain
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
light rain
rain showers
rain showers
light rain
light rain
heavy rain
heavy rain
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:00
6:58
6:56
6:54
6:52
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:08
6:09
6:10
6:12
6:13
 mm
2
1
1
3
1
2
10
3
4
16
3
3
4
3
3
11
19
5
5
Temp °C
10
9
11
12
13
13
14
14
15
15
12
11
11
12
12
13
14
13
12
Feels °C
-2
-1
3
6
11
8
11
14
14
8
5
2
4
8
10
7
6
8
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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