Larsen Street Surf Break

Lat Long: 41.75° S 171.49° E

Larsen Street Surf Forecast and Surf Report

Issued: 5 am 07 Sep 2026 (local time)

Forecast update in  hr  min

Today's Larsen Street sea temperature is
13.3°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 6 Sep 2026:

  • Best quality surf: Friday 11 Sep, 3AM (local time) - 11ft (3.5m), 19s period, WSW swell with offshore winds.
  • Most powerful swell: Friday 11 Sep, 6AM (local time) - 11ft (3.5m), 18s period, WSW swell with 8,764 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 12PM (local time) - 5.5ft (1.7m), 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 Monday (Sep 07) at 12PM. The primary swell is predicted to be 1.7m and 14s period with a secondary swell of 1.5m and 8s. 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 18s and forecast to arrive on Friday (Sep 11) at 6AM. Winds are predicted to be offshore at the time the swell arrives.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Mon 7th Sep)5.5ft (1.7m) 14s
Best Surf 3AM (Fri 11th Sep)11ft (3.5m) 19s
Most Powerful 6AM (Fri 11th Sep)11ft (3.5m) 18s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Mon morning. Very mild (max 11°C on Tue morning, min 8°C on Tue night). Winds increasing (calm on Mon night, fresh winds from the SW by Wed night).

Days 4-6 Weather Summary

Moderate rain (total 14mm), heaviest on Fri afternoon. Very mild (max 11°C on Thu morning, min 6°C on Thu night). Winds increasing (calm on Fri morning, near gales from the SW by Sat morning).

Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
2
3
3
1
2
3
2
2
2
2
6
7
6
0
0
0
1
2
2
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
WSW
14
1.6
WSW
14
1.6
WSW
13
1.4
WSW
12
1.4
W
12
1
W
11
1.4
WSW
10
1.5
WSW
11
1.4
WSW
11
1.6
WSW
16
2.5
WSW
15
3
WSW
19
3.5
WSW
18
3.5
WSW
17
3
WSW
16
3.5
W
13
4
WSW
13
2.2
WSW
15
2
WSW
16
1.9
WSW
16
3
WSW
16
Wave Graph
Metric surfscale
Energy kJ
1294
988
811
558
537
256
426
485
452
1255
3115
7409
8544
7242
4457
3622
5045
2139
1943
1740
3712
Wind (km/h)
15
E
5
NE
5
S
5
N
10
NNE
10
SSE
5
ENE
10
W
5
W
30
SSW
35
SW
10
SE
5
S
10
SE
45
SW
55
SW
55
SW
35
SW
25
SSW
15
SW
15
SSW
Wind State
cross-off
cross
glassy
glassy
cross
off
glassy
cross-on
cross-on
cross-off
cross
off
cross-off
off
cross
cross
cross
cross
cross-off
cross
cross-off
High Tide
7:27PM2.55m
8:04AM2.55m
8:28PM2.74m
8:59AM2.72m
9:19PM2.91m
9:46AM2.86m
10:04PM3.04m
10:28AM2.95m
10:46PM3.09m
11:08AM2.99m
11:25PM3.08m
11:46AM2.96m
00:03AM2.99m
Low Tide
1:06PM0.63m
1:45AM0.46m
2:11PM0.46m
2:44AM0.27m
3:04PM0.28m
3:34AM0.10m
3:52PM0.13m
4:18AM-0.01m
4:35PM0.04m
4:59AM-0.05m
5:15PM0.01m
5:38AM-0.02m
5:55PM0.06m
light rain
light rain
cloud
cloud
part cloud
clear
part cloud
part cloud
light rain
light rain
part cloud
clear
part cloud
mod rain
rain showers
rain showers
rain showers
cloud
cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:48
6:46
6:45
6:43
6:41
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:14
6:15
6:15
6:16
6:17
6:19
6:20
 mm
4
1
5
1
7
3
2
1
3
Temp °C
9
10
10
11
11
11
10
11
11
11
10
8
9
11
11
10
10
10
10
11
12
Feels °C
5
6
7
9
9
8
8
8
9
3
2
4
8
6
3
-2
-2
2
4
7
6
  • 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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