Larsen Street Surf Break

Lat Long: 41.75° S 171.49° E

Larsen Street Surf Forecast and Surf Report

Issued: 11 pm 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Larsen Street sea temperature is
13.2° C
0.5° 

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 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 12AM (local time) - 7ft (2.1m), 17s period, W swell with cross-offshore winds.
  • Most powerful swell: Saturday 15 Aug, 9AM (local time) - 8ft (2.5m), 17s period, WSW swell with 3,917 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 11 Aug, 9AM (local time) - 2ft (0.6m), 20s 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 Tuesday (Aug 11) at 9AM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.6m and 20s. 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 2.5m 17s and forecast to arrive on Saturday (Aug 15) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 8s period and expected on Thursday (Aug 13) at 12AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Tue 11th Aug)2ft (0.6m) 20s
Best Surf12AM (Sat 15th Aug)7ft (2.1m) 17s
Most Powerful 9AM (Sat 15th Aug)8ft (2.5m) 17s

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


Short Range Forecast

Moderate rain (total 16mm), heaviest on Wed night. Very mild (max 14°C on Thu morning, min 9°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Fri morning, min 8°C on Sat night). Wind will be generally light.

Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
1
2
2
3
0
3
1
3
3
1
4
4
2
4
4
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
WSW
13
0.6
WSW
20
0.7
WSW
19
0.9
WSW
17
0.7
WSW
16
2.4
NNW
11
1.5
NW
10
1.7
WNW
10
1.6
WNW
11
1.2
WSW
16
0.8
WSW
18
0.9
WSW
19
2.1
W
17
2.5
WSW
17
2.5
WSW
16
2.4
WSW
16
2.2
WSW
15
2.1
WSW
15
1.9
WSW
15
Wave Graph
Metric surfscale
Energy kJ
458
298
363
505
263
1415
450
624
640
679
427
602
2651
3917
3685
2766
2076
1873
1505
Wind (km/h)
10
E
10
ENE
10
NNW
10
E
15
ENE
15
ENE
30
NE
15
ENE
20
NE
10
E
5
SE
15
SW
15
SSW
15
S
20
SW
15
ESE
10
ESE
15
SW
15
ESE
Wind State
cross-off
cross-off
cross-on
cross-off
cross-off
cross-off
cross
cross-off
cross
cross-off
off
cross
cross-off
cross-off
cross
off
off
cross
cross-off
High Tide
9:10AM2.74m
9:32PM2.92m
10:02AM2.88m
10:22PM3.07m
10:49AM2.97m
11:08PM3.14m
11:34AM3.00m
11:52PM3.14m
12:16PM2.97m
00:34AM3.06m
12:57PM2.88m
1:15AM2.91m
Low Tide
2:54AM0.27m
3:18PM0.27m
3:49AM0.10m
4:09PM0.12m
4:38AM-0.03m
4:56PM0.02m
5:24AM-0.09m
5:41PM-0.01m
6:07AM-0.07m
6:23PM0.03m
6:49AM0.02m
7:05PM0.14m
clear
part cloud
part cloud
cloud
cloud
light rain
rain showers
rain showers
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:31
7:30
7:28
7:26
7:26
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:46
5:47
5:49
5:50
5:51
5:52
 mm
4
8
1
3
Temp °C
11
12
12
11
12
11
13
14
14
13
14
14
12
12
13
11
11
13
10
Feels °C
9
9
10
10
8
7
10
12
10
10
12
10
9
8
9
8
8
10
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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