Larsen Street surfForecast / West Coast South Island / New Zealand

information circle16 Day Weather and Surf, issued 6 pm Friday 27 Mar 2026 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
17.0° C
(Which is normal for this time of year)

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 Saturday (Mar 28) at 1PM. The primary swell is predicted to be 1.9m and 8s period with a secondary swell of 1.0m and 14s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Larsen Street in the next 16 days are 3.5m 10s and forecast to arrive on Monday (Mar 30) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 7s period and expected on Monday (Mar 30) at 7PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Sat 28th Mar)6ft (1.9m) 8s
Best Surf 1PM (Sat 28th Mar)6ft (1.9m) 8s
Most Powerful10PM (Mon 30th Mar)11ft (3.5m) 10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 20mm), heaviest during Sun night. Very mild (max 19°C on Fri afternoon, min 15°C on Sun night). Winds decreasing (fresh winds from the NNE on Fri afternoon, calm by Sat morning).

Days 3-6 Weather Summary Some drizzle, heaviest during Mon afternoon. Very mild (max 16°C on Mon afternoon, min 12°C on Tue night). Winds decreasing (strong winds from the SSW on Mon afternoon, calm by Wed afternoon).

Fri
27
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
1
2
2
2
1
0
1
3
1
2
3
1
3
3
1
2
2
0
1
1
Swell
Height Map
Wave Height (m) & direction (?)
3.5
NNW
2.5
NW
2.1
NW
1
WSW
0.9
WSW
1
WSW
0.9
WSW
1.8
NW
1.9
NW
1.3
WSW
3
WSW
3
WSW
2.5
WSW
2
WSW
1.2
WSW
1.1
WSW
1.3
WSW
1
WSW
0.9
WSW
0.8
WSW
0.8
WSW
Period(s) (?)1110913131313111016101110913131313121213
Wave
Graph
(?)Metric surfscale
Energy kJ (?)24451286671384317384303794701848204118701406655468390522312210158192
Wind
(km/h)
30
NNE
20
N
10
WNW
5
NNW
5
ENE
15
ENE
15
NNE
20
NE
5
ENE
30
SW
35
SSW
25
SSW
30
SW
10
S
10
ENE
5
NNW
10
E
5
E
5
NNW
10
ESE
5
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
ononcross-
off
cross-
off
crosscrosscross-
off
crosscross-
off
cross-
off
crosscross-
off
cross-
off
cross-
on
cross-
off
glasscross-
on
offglass
High Tide
/ height (m)
7:10PM
2.30
7:43AM
2.43
8:24PM
2.39
8:49AM
2.56
9:23PM
2.53
9:43AM
2.70
10:10PM
2.66
10:27AM
2.81
10:51PM
2.77
11:07AM
2.89
11:28PM
2.84
11:43AM
2.92
12:02AM
2.87
12:18PM
2.90
Low Tide
/ height (m)
1:19AM
0.74
2:03PM
0.60
2:30AM
0.63
3:06PM
0.46
3:27AM
0.48
3:57PM
0.31
4:15AM
0.34
4:40PM
0.20
4:56AM
0.23
5:19PM
0.13
5:35AM
0.17
5:55PM
0.12
6:11AM
0.17
Fri
27
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Sunrise--7:43--7:45--7:46--7:47--7:48--7:48--7:50
Sunset7:35--7:32--7:31--7:30--7:28--7:25--7:24--
light rain
light rain
part cloud
part cloud
cloud
light rain
light rain
mod rain
part cloud
rain showers
part cloud
part cloud
cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
Rain (mm)
44---246-1-----------
Temp. °C191918181718171716161514141414151415151717
Feels °C (?)161618181717151516118971012141314141516
  • 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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