Larsen Street surfForecast / West Coast South Island / New Zealand

information circle12 Day Weather and Surf, issued 12 am Tuesday 25 Nov 2025 NZDT
Forecast update in hr  min  s Forecast update imminent
Larsen Street surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Larsen Street sea temperature is
15.8° C
(Which is 1.1°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Larsen Street this week:

The surf forecast for Larsen Street over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Nov 25) at 4AM. The primary swell is predicted to be 1.1m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Larsen Street in the next 12 days are 5.0m 14s and forecast to arrive on Monday (Dec 01) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 7s period and expected on Wednesday (Nov 26) at 10AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Tue 25th Nov)3.5ft (1.1m) 12s
Best Surf 1AM (Mon 1st Dec)16ft (5.0m) 14s
Most Powerful 1AM (Mon 1st Dec)16ft (5.0m) 14s

Table - best surf conditions forecast for Larsen Street over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 38mm), heaviest during Thu morning. Very mild (max 18°C on Tue afternoon, min 13°C on Mon night). Winds increasing (calm on Mon night, strong winds from the NNE by Tue night).

Days 3-6 Weather Summary Heavy rain (total 22mm), heaviest during Sun afternoon. Very mild (max 17°C on Thu night, min 12°C on Fri night). Mainly strong winds.

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Mon
01
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
1
0
0
0
0
1
0
0
0
1
0
1
0
0
4
1
0
!
1
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
WSW
1.1
WSW
1
WSW
0.8
WSW
0.4
WSW
2.5
NNW
1.4
NW
1
WNW
2.2
NW
1.4
WNW
1.6
NW
1
W
1.7
W
1.9
W
1.7
W
2.2
WSW
2
WSW
1.6
WSW
5
W
2.5
WSW
2
WSW
Period(s) (?)12111111119888888101111141413141111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)242285234138489322561225162643241205578136511817152695894931684875
Wind
(km/h)
5
SE
10
N
25
NNE
25
NE
45
NNE
25
NNW
15
NE
35
NE
20
N
15
NE
15
WSW
25
SW
20
SSW
30
SW
40
SW
10
S
25
NE
45
NNE
30
SSW
30
SW
25
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on
cross-
on
crosscross-
on
cross-
on
crosscrosscross-
on
crosscrosscrosscross-
off
crosscrosscross-
off
crosscross-
on
cross-
off
crosscross
High Tide
/ height (m)
2:10AM
2.45
2:29PM
2.49
2:54AM
2.37
3:15PM
2.42
3:44AM
2.30
4:07PM
2.38
4:42AM
2.27
5:06PM
2.38
5:45AM
2.30
6:09PM
2.43
6:49AM
2.38
7:12PM
2.53
7:49AM
2.52
Low Tide
/ height (m)
8:20AM
0.62
8:47PM
0.61
9:05AM
0.68
9:36PM
0.66
9:55AM
0.73
10:30PM
0.67
10:52AM
0.74
11:30PM
0.63
11:53AM
0.71
12:31AM
0.55
12:56PM
0.62
1:31AM
0.44
1:57PM
0.48
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Mon
01
Sunrise-5:56--5:56--5:56--5:54--5:54--5:54--5:54-
Sunset--8:44--8:45--8:45--8:47--8:49--8:50--8:51
part cloud
part cloud
cloud
light rain
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
clear
clear
clear
clear
part cloud
part cloud
cloud
heavy rain
rain showers
part cloud
clear
Rain (mm)
---511411255-------172--
Temp. °C131618181718171717171717141414131616161514
Feels °C (?)12131414111617121517161397681081598
  • 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 12 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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