Larsen Street Surf Break

Lat Long: 41.75° S 171.49° E

Issued: 11 am 20 Jun 2026 (local time)

Forecast update in  hr  min

Today's Larsen Street sea temperature is
14.6° C

Slightly warmer than usual

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 20 Jun 2026:

  • Best quality surf: Sunday 21 Jun, 3AM (local time) - 10ft (3.0m), 10s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Saturday 20 Jun, 9PM (local time) - 11ft (3.5m), 10s period, WNW swell with 2,652 kJ wave energy.
  • Next surfable swell (1★+): Sunday 21 Jun, 3AM (local time) - 10ft (3.0m), 10s period with WNW 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 Sunday (Jun 21) at 3AM. The primary swell is predicted to be 3.0m and 10s period with a secondary swell of 0.5m and 17s. 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 10s and forecast to arrive on Saturday (Jun 20) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 7s period and expected on Thursday (Jun 25) at 12AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 21st Jun)10ft (3.0m) 10s
Best Surf 3AM (Sun 21st Jun)10ft (3.0m) 10s
Most Powerful 9PM (Sat 20th Jun)11ft (3.5m) 10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 30mm), heaviest during Sat night. Very mild (max 15°C on Sat morning, min 10°C on Mon morning). Winds decreasing (strong winds from the NNW on Sat afternoon, calm by Mon morning).

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Tue night. Very mild (max 16°C on Wed afternoon, min 6°C on Thu night). Winds increasing (light winds from the ENE on Tue afternoon, strong winds from the NNE by Wed afternoon).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
AM
PM
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
4
0
3
2
2
2
2
2
2
1
1
1
3
2
2
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
WNW
7
2.5
WNW
8
3
WNW
10
2.4
WNW
10
2.2
WNW
10
1.5
WNW
9
1.1
NW
9
0.6
WSW
14
1.2
WSW
13
1.2
WSW
14
1.1
WSW
14
1
WSW
14
0.9
WSW
13
0.9
WSW
13
1.8
WSW
14
1.9
WSW
13
1.9
WSW
13
1.7
WSW
12
1.7
WSW
14
1.6
WSW
14
1.5
WSW
14
Wave Graph
Metric surfscale
Energy kJ
240
887
2214
1124
904
354
186
160
482
522
433
347
273
277
1374
1230
1157
838
1090
961
813
Wind (km/h)
25
NNW
35
NNW
15
SW
10
NE
30
SW
10
SSE
10
E
5
W
10
E
10
ESE
5
ENE
15
E
25
E
25
ENE
35
NNE
10
S
30
SSE
20
SSE
10
ESE
5
NE
10
E
Wind State
on
on
cross
cross-off
cross
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
off
cross-off
off
glassy
cross-off
High Tide
2:48PM2.63m
3:11AM2.72m
3:43PM2.51m
4:07AM2.57m
4:41PM2.41m
5:05AM2.44m
5:39PM2.35m
6:03AM2.35m
6:36PM2.33m
7:00AM2.32m
7:29PM2.35m
7:53AM2.33m
8:19PM2.39m
Low Tide
8:56PM0.38m
9:31AM0.37m
9:51PM0.51m
10:26AM0.50m
10:49PM0.62m
11:22AM0.60m
11:48PM0.70m
12:18PM0.67m
00:46AM0.74m
1:12PM0.70m
1:40AM0.73m
2:03PM0.69m
2:31AM0.69m
light rain
light rain
rain showers
rain showers
rain showers
clear
clear
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
rain showers
part cloud
clear
part cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
8:00
8:00
8:00
8:00
8:02
8:02
8:02
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:08
5:09
5:09
5:09
5:09
5:10
5:10
 mm
1
5
19
4
1
5
5
1
2
Temp °C
15
15
13
14
13
12
10
11
11
12
13
12
12
16
12
13
13
8
8
10
8
Feels °C
11
10
8
10
7
7
7
9
8
9
10
9
7
12
4
10
5
0
4
7
4
Swell 1
Height (m)
Direction
Period (s)
0.5
WSW
12
0.4
WSW
19
3
WNW
10
2.4
WNW
10
2.2
WNW
10
1.5
WNW
9
1.2
WSW
8
0.9
WNW
9
1.2
WSW
13
1.2
WSW
14
1.1
WSW
14
1
WSW
14
0.9
WSW
13
0.9
WSW
13
1.8
WSW
14
1.9
WSW
13
1.9
WSW
13
1.7
WSW
12
1.7
WSW
14
1.6
WSW
14
1.5
WSW
14
Energy kJ
85
120
2214
1124
904
354
159
135
482
522
433
347
273
277
1374
1230
1157
838
1090
961
813
Swell 2
Height (m)
Direction
Period (s)
0.3
WSW
20
0.5
WSW
18
0.8
WSW
12
0.8
WSW
11
1.2
WSW
9
1.1
NW
9
0.9
WSW
8
0.7
NW
8
0.6
WNW
8
0.5
NW
8
0.4
NW
7
0.2
WNW
7
0.2
WSW
18
0.7
N
7
0.5
N
7
0.3
N
8
0.2
NNE
7
Energy kJ
75
174
164
135
227
186
81
70
44
28
14
5
32
47
24
10
5
Swell 3
Height (m)
Direction
Period (s)
0.1
N
10
0.5
WSW
16
0.5
WSW
16
0.6
WSW
15
0.5
WSW
14
0.6
WSW
14
0.1
NW
7
Energy kJ
2
151
142
169
116
160
2
Wind waves
Height (m)
Direction
Period (s)
1.7
WNW
7
2.5
WNW
8
0.1
NE
4
Energy kJ
240
887
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
4
4
4
3
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
Distance (km)
155
347
33
0
9
0
0
0
0
0
0
13
13
13
0
0
0
0
0
9
0
Best forecast wave conditions in West Coast South Island
Rating
(10 max)
4
4
4
3
3
3
3
3
2
2
2
2
3
3
3
3
3
3
3
Best forecast wave conditions in New Zealand
Rating
(10 max)
4
4
4
4
4
4
7
6
5
4
4
3
2
2
4
4
4
5
5
5
5
Header Global
Rating
(10 max)
4
5
5
8
9
6
8
6
6
5
5
5
7
7
7
5
5
5
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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