Larsen Street surfForecast / West Coast South Island / New Zealand

information circle16 Day Weather and Surf, issued 6 am Tuesday 31 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
17.6° C
(Which is slightly warmer than usual)

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 (Mar 31) at 10PM. The primary swell is predicted to be 2.0m and 10s period with a secondary swell of 1.2m and 14s. 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 1.9m 14s and forecast to arrive on Wednesday (Apr 01) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 8s period and expected on Tuesday (Apr 07) at 12AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+)10PM (Tue 31st Mar)6.5ft (2.0m) 10s
Best Surf10PM (Tue 31st Mar)6.5ft (2.0m) 10s
Most Powerful 7AM (Wed 1st Apr)6ft (1.9m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 15°C on Tue morning, min 13°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 68mm), heaviest during Sat night. Very mild (max 17°C on Fri night, min 10°C on Sun night). Wind will be generally light.

Tuesday
31
Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
Monday
06
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
0
2
2
1
2
1
0
1
1
0
0
0
0
2
3
3
3
3
2
2
Swell
Height Map
Wave Height (m) & direction (?)
2.2
WSW
2.2
WSW
1.9
WSW
1.8
WSW
1.6
WSW
1.3
WSW
0.9
WSW
0.8
WSW
0.7
WSW
0.4
WSW
0.8
WSW
1
WSW
1.1
WSW
1.2
W
1.5
W
1.7
W
1.6
WSW
1.7
WSW
1.6
WSW
1.4
WSW
1.1
WSW
Period(s) (?)9910141313111112131211111010131314141312
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7448266981161867569161145127601612453312904349578601080893623333
Wind
(km/h)
25
SSW
25
SW
5
NE
15
NE
10
NNE
10
ESE
5
E
10
WSW
5
SE
10
ENE
10
NNE
15
NE
25
NNW
15
N
10
SE
10
SSW
5
SSE
10
SE
20
SE
20
ESE
10
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscrosscrosscross-
on
cross-
off
glasscrossoffcross-
off
cross-
on
crosscross-
on
cross-
on
offcross-
off
glassoffoffoffcross-
off
High Tide
/ height (m)
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
12:36AM
2.85
12:52PM
2.83
1:09AM
2.79
1:26PM
2.73
1:43AM
2.69
2:02PM
2.60
2:19AM
2.56
Low Tide
/ height (m)
4:40PM
0.20
4:56AM
0.23
5:19PM
0.13
5:35AM
0.17
5:55PM
0.12
6:11AM
0.17
6:29PM
0.15
6:46AM
0.21
7:03PM
0.24
7:21AM
0.30
7:37PM
0.36
7:56AM
0.42
8:13PM
0.51
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
Monday
06
Sunrise7:47--7:48--7:48--7:50--7:52--7:52--7:54--
Sunset-7:28--7:25--7:24--7:22--7:21--7:20--7:17-
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
cloud
rain showers
mod rain
light rain
heavy rain
light rain
mod rain
mod rain
light rain
light rain
light rain
Rain (mm)
-----------47533388413
Temp. °C151414151514141414141517171715141313121316
Feels °C (?)108111212131313131213151414141313108813
  • 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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