Larsen Street Surf Break

Lat Long: 41.75° S 171.49° E

Larsen Street Surf Forecast and Surf Report

Issued: 11 pm 25 Aug 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 25 Aug 2026:

  • Best quality surf: Sunday 30 Aug, 6PM (local time) - 18ft (5.5m), 12s period, WSW swell with offshore winds.
  • Most powerful swell: Monday 31 Aug, 3AM (local time) - 18ft (5.5m), 15s period, W swell with 14,252 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 3AM (local time) - 7ft (2.2m), 10s period with W 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 (Aug 27) at 3AM. The primary swell is predicted to be 2.2m and 10s period with a secondary swell of 1.0m and 13s. 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 5.5m 15s and forecast to arrive on Monday (Aug 31) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Thursday (Aug 27) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Thu 27th Aug)7ft (2.2m) 10s
Best Surf 6PM (Sun 30th Aug)18ft (5.5m) 12s
Most Powerful 3AM (Mon 31st Aug)18ft (5.5m) 15s

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


Short Range Forecast

Heavy rain (total 66mm), heaviest during Fri morning. Very mild (max 15°C on Wed night, min 13°C on Tue night). Winds increasing (calm on Tue night, near gales from the NNE by Thu night).

Days 5-7 Weather Summary

Moderate rain (total 14mm), heaviest on Sun morning. Very mild (max 12°C on Fri night, min 5°C on Sun night). Winds increasing (calm on Sat morning, strong winds from the SW by Sun afternoon).

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
0
3
0
0
0
0
0
2
3
2
3
0
0
!
!
7
!
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
W
14
2.3
W
14
2.4
W
13
2.3
W
9
2
WNW
10
1.8
WNW
8
3
NNW
10
3.5
NNW
10
3
NW
10
3
W
12
2.1
W
10
0.7
W
20
1
W
18
3.5
W
9
5
WSW
11
5.5
W
15
4.5
W
16
4
WSW
16
4.5
WSW
12
Wave Graph
Metric surfscale
Energy kJ
2499
2038
1998
924
712
382
1864
2778
1574
2219
849
377
653
2003
5478
13088
9543
8300
6138
Wind (km/h)
10
WNW
20
NW
25
NW
10
WSW
25
NE
35
NNE
55
NE
30
N
25
WNW
20
WSW
5
SSE
10
WSW
10
S
35
WSW
50
SW
10
ESE
15
S
5
E
5
SSE
Wind State
cross-on
on
on
cross-on
cross
cross
cross
cross-on
on
cross
glassy
cross
cross-off
cross-on
cross
off
cross-off
glassy
glassy
High Tide
9:03PM2.49m
9:26AM2.49m
9:42PM2.64m
10:03AM2.63m
10:18PM2.78m
10:38AM2.74m
10:53PM2.88m
11:13AM2.82m
11:27PM2.95m
11:48AM2.86m
00:03AM2.96m
12:24PM2.86m
00:40AM2.92m
Low Tide
3:17AM0.56m
3:32PM0.52m
3:55AM0.39m
4:08PM0.38m
4:31AM0.25m
4:44PM0.26m
5:06AM0.15m
5:19PM0.18m
5:40AM0.09m
5:54PM0.15m
6:16AM0.09m
6:32PM0.17m
rain showers
mod rain
mod rain
heavy rain
light rain
rain showers
heavy rain
rain showers
rain showers
rain showers
part cloud
clear
clear
mod rain
rain showers
clear
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:09
7:07
7:05
7:03
7:03
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:01
6:02
6:04
6:05
6:06
6:07
 mm
7
6
7
14
2
1
12
14
3
3
8
3
Temp °C
14
14
14
15
15
14
14
14
13
12
12
12
10
11
10
8
9
9
11
Feels °C
13
12
10
12
10
7
6
8
8
7
10
10
7
1
-1
4
6
7
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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