Larsen Street Surf Break

Lat Long: 41.75° S 171.49° E

Larsen Street Surf Forecast and Surf Report

Issued: 5 am 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's Larsen Street sea temperature is
12.9°C
0.2° 

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 10 Sep 2026:

  • Best quality surf: Friday 11 Sep, 6AM (local time) - 11ft (3.5m), 18s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Saturday 12 Sep, 6AM (local time) - 13ft (4.0m), 16s period, WSW swell with 8,424 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 9PM (local time) - 7.5ft (2.3m), 19s 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 (Sep 10) at 9PM. The primary swell is predicted to be 2.3m and 19s period with a secondary swell of 2.4m and 10s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Larsen Street in the next 16 days are 4.0m 16s and forecast to arrive on Saturday (Sep 12) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 12s period and expected on Tuesday (Sep 15) at 3AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Thu 10th Sep)7.5ft (2.3m) 19s
Best Surf 6AM (Fri 11th Sep)11ft (3.5m) 18s
Most Powerful 6AM (Sat 12th Sep)13ft (4.0m) 16s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Thu morning. Very mild (max 12°C on Sat night, min 6°C on Thu night). Winds decreasing (strong winds from the SSW on Thu morning, light winds from the E by Thu night).

Days 4-6 Weather Summary

Moderate rain (total 18mm), heaviest on Tue night. Very mild (max 13°C on Sun morning, min 9°C on Mon night). Winds increasing (calm on Tue morning, fresh winds from the SW by Tue night).

Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
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
5
6
5
0
4
2
2
1
1
4
3
1
3
3
1
0
1
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)
1.5
WSW
16
1.2
WSW
20
2.5
WSW
19
3.5
WSW
18
3
WSW
18
4
WSW
16
3.5
W
16
3
WSW
16
2.5
WSW
16
2.1
WSW
16
1.9
WSW
16
2.5
WSW
16
2.3
WSW
15
2.2
WSW
14
1.8
WSW
14
1.5
WSW
14
1.2
WSW
14
1.8
WNW
7
2.5
W
11
2.5
WSW
11
3.5
W
14
Wave Graph
Metric surfscale
Energy kJ
1109
1141
4424
7665
6065
7370
5664
4402
3296
2397
1807
3216
2264
1966
1277
850
588
298
1615
1520
5434
Wind (km/h)
35
SW
40
SW
5
SE
5
S
10
SSW
40
SW
35
SW
30
SW
25
SW
30
SW
25
SW
10
S
15
SSW
30
SW
10
S
5
ENE
10
NNE
35
WNW
35
SW
35
SW
30
SSW
Wind State
cross
cross
off
cross-off
cross-off
cross
cross-off
cross
cross
cross
cross
cross-off
cross-off
cross
cross-off
glassy
cross
cross-on
cross
cross
cross-off
High Tide
9:46AM2.86m
10:04PM3.04m
10:28AM2.95m
10:46PM3.09m
11:08AM2.99m
11:25PM3.08m
11:46AM2.96m
00:03AM2.99m
12:23PM2.88m
00:40AM2.85m
12:59PM2.75m
1:18AM2.67m
1:37PM2.59m
1:58AM2.48m
Low Tide
3:52PM0.13m
4:18AM-0.01m
4:35PM0.04m
4:59AM-0.05m
5:15PM0.01m
5:38AM-0.02m
5:55PM0.06m
6:16AM0.09m
6:33PM0.18m
6:53AM0.24m
7:12PM0.34m
7:31AM0.43m
7:52PM0.52m
mod rain
clear
clear
light rain
cloud
rain showers
part cloud
rain showers
rain showers
rain showers
clear
rain showers
clear
part cloud
part cloud
clear
cloud
rain showers
part cloud
rain showers
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:45
6:43
6:41
6:39
6:37
6:35
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:16
6:17
6:19
6:20
6:21
6:22
6:23
 mm
7
1
1
1
2
1
1
16
2
4
Temp °C
11
11
8
10
11
11
11
11
12
13
13
12
12
12
11
10
11
13
11
11
11
Feels °C
4
2
5
8
7
4
4
4
4
7
8
8
6
6
7
9
8
7
3
3
3
  • 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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