Larsen Street Surf Break

Lat Long: 41.75° S 171.49° E

Larsen Street Surf Forecast and Surf Report

Issued: 11 am 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Larsen Street sea temperature is
13.8° 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 20 Jul 2026:

  • Best quality surf: Saturday 25 Jul, 6AM (local time) - 15ft (4.5m), 15s period, W swell with cross-shore winds.
  • Most powerful swell: Saturday 25 Jul, 6PM (local time) - 18ft (5.5m), 16s period, W swell with 14,292 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 21 Jul, 3AM (local time) - 4.5ft (1.4m), 13s 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 (Jul 21) at 3AM. The primary swell is predicted to be 1.4m and 13s period with a secondary swell of 0.3m and 11s. 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 5.5m 16s and forecast to arrive on Saturday (Jul 25) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 8s period and expected on Thursday (Jul 23) at 12AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Tue 21st Jul)4.5ft (1.4m) 13s
Best Surf 6AM (Sat 25th Jul)15ft (4.5m) 15s
Most Powerful 6PM (Sat 25th Jul)18ft (5.5m) 16s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Mon afternoon. Very mild (max 13°C on Mon morning, min 10°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 72mm), heaviest during Sat afternoon. Very mild (max 13°C on Thu afternoon, min 6°C on Sat morning). Winds increasing (light winds from the WNW on Thu afternoon, near gales from the SW by Fri night).

Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
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)
3
2
2
2
0
2
2
2
3
3
2
0
2
1
0
!
0
!
5
4
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
WSW
14
1.6
WSW
14
1.5
W
13
1.2
WSW
13
1.1
WSW
13
0.8
WSW
12
0.8
WSW
12
1.4
WSW
12
1.6
WSW
13
1.6
WSW
13
1.4
WSW
13
1.5
W
7
2.3
WNW
8
1.3
WSW
12
4.5
W
10
4.5
W
16
5
W
16
4.5
W
14
3
W
14
3
W
14
2.4
W
13
Wave Graph
Metric surfscale
Energy kJ
1016
874
787
499
411
186
153
488
929
823
669
222
766
545
4212
9990
13181
8384
4053
2900
1892
Wind (km/h)
10
SSE
15
WSW
5
WSW
5
SE
20
SW
10
SSE
5
E
0
W
10
E
15
ENE
10
WNW
35
N
10
NW
20
SW
50
SW
10
WSW
25
NNE
35
SSE
15
SSE
10
SSW
10
SSE
Wind State
off
cross
cross
off
cross
cross-off
cross-off
glassy
cross-off
cross-off
on
cross-on
on
cross
cross
cross-on
cross-on
cross-off
off
cross-off
off
High Tide
3:02PM2.56m
3:23AM2.55m
3:52PM2.41m
4:15AM2.38m
4:47PM2.30m
5:14AM2.24m
5:48PM2.23m
6:18AM2.18m
6:51PM2.22m
7:22AM2.19m
7:51PM2.27m
8:19AM2.27m
8:42PM2.37m
Low Tide
9:12PM0.48m
9:40AM0.52m
10:04PM0.65m
10:32AM0.69m
11:00PM0.79m
11:29AM0.81m
00:03AM0.86m
12:32PM0.87m
1:07AM0.87m
1:33PM0.85m
2:06AM0.81m
2:28PM0.78m
2:57AM0.71m
clear
rain showers
rain showers
part cloud
cloud
cloud
rain showers
clear
part cloud
cloud
rain showers
heavy rain
mod rain
rain showers
rain showers
light rain
heavy rain
mod rain
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:54
7:52
7:52
7:50
7:50
7:50
7:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:25
5:27
5:28
5:29
5:30
5:30
5:31
 mm
2
2
1
2
18
8
4
10
2
19
9
Temp °C
13
12
13
11
11
10
11
11
11
11
13
13
12
11
9
9
10
10
9
9
6
Feels °C
11
9
10
9
7
6
10
10
10
8
11
9
10
6
-2
5
1
6
4
5
2
  • 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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