Larsen Street Surf Break

Lat Long: 41.75° S 171.49° E

Larsen Street Surf Forecast and Surf Report

Issued: 5 am 19 Sep 2026 (local time)

Forecast update in  hr  min

Today's Larsen Street sea temperature is
12.4°C
0.4° 

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 18 Sep 2026:

  • Best quality surf: Sunday 20 Sep, 6PM (local time) - 15ft (4.5m), 16s period, WSW swell with cross-shore winds.
  • Most powerful swell: Sunday 20 Sep, 3PM (local time) - 15ft (4.5m), 16s period, WSW swell with 10,538 kJ wave energy.
  • Next surfable swell (1★+): Sunday 20 Sep, 6PM (local time) - 15ft (4.5m), 16s 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 Sunday (Sep 20) at 6PM. The primary swell is predicted to be 4.5m and 16s 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 4.5m 16s and forecast to arrive on Sunday (Sep 20) at 3PM. 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+) 6PM (Sun 20th Sep)15ft (4.5m) 16s
Best Surf 6PM (Sun 20th Sep)15ft (4.5m) 16s
Most Powerful 3PM (Sun 20th Sep)15ft (4.5m) 16s

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


Short Range Forecast

Moderate rain (total 17mm), heaviest on Sat morning. Very mild (max 13°C on Sat morning, min 9°C on Sat night). Winds decreasing (near gales from the SW on Sat night, calm by Mon afternoon).

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Tue night. Very mild (max 12°C on Tue morning, min 7°C on Wed morning). Winds decreasing (strong winds from the SW on Tue afternoon, calm by Thu night).

Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
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
3
0
0
0
5
4
3
2
1
0
0
4
0
4
3
2
4
3
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
WSW
15
3
W
15
3.5
W
15
5
WSW
13
4.5
WSW
16
4
WSW
16
3
WSW
16
2.4
W
14
1.9
W
14
3
WSW
13
3.5
WSW
10
3
WSW
14
2.5
WSW
15
3.5
WSW
15
3
WSW
16
2.5
WSW
15
2.2
WSW
14
2
WSW
14
1.8
WSW
13
1.7
WSW
13
1.6
WSW
12
Wave Graph
Metric surfscale
Energy kJ
3058
3428
6365
7840
10538
7856
4131
2441
1403
3045
2149
4168
2700
4925
3975
2628
1939
1400
1057
931
766
Wind (km/h)
25
W
15
SW
45
WSW
45
SW
35
SW
15
SW
15
SW
15
WSW
20
NE
40
SSW
40
SW
40
SW
10
ESE
35
SW
10
SSE
10
NE
25
SW
10
SSE
5
SW
25
SW
10
SSW
Wind State
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
off
cross
off
cross
cross
cross-off
glassy
cross
cross-off
High Tide
4:14PM2.12m
4:56AM2.04m
5:34PM2.09m
6:17AM2.06m
6:48PM2.17m
7:22AM2.18m
7:44PM2.32m
8:11AM2.34m
8:28PM2.49m
8:52AM2.51m
9:08PM2.67m
9:30AM2.67m
9:44PM2.83m
Low Tide
9:58AM0.97m
10:39PM0.99m
11:12AM1.03m
11:57PM0.99m
12:28PM0.98m
1:06AM0.88m
1:29PM0.85m
1:59AM0.71m
2:16PM0.67m
2:42AM0.52m
2:57PM0.49m
3:20AM0.33m
3:35PM0.33m
light rain
light rain
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
clear
clear
rain showers
clear
part cloud
clear
clear
clear
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:26
6:26
6:24
6:22
6:20
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:27
6:28
6:29
6:30
6:30
6:31
6:32
 mm
5
4
5
3
3
Temp °C
13
13
13
10
11
11
11
12
11
12
12
10
11
11
10
10
10
10
11
11
11
Feels °C
9
7
6
-1
3
6
7
8
8
3
2
1
6
2
4
8
4
5
9
5
7
  • 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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