Larsen Street surfForecast / West Coast South Island / New Zealand

information circle12 Day Weather and Surf, issued 5 pm Friday 11 Jul 2025 NZST
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
13.3° 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jul 12) at 12AM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 1.3m and 8s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Larsen Street in the next 12 days are 5.0m 16s and forecast to arrive on Sunday (Jul 13) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 9s period and expected on Friday (Jul 11) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 12th Jul)3.5ft (1.1m) 14s
Best Surf12AM (Sun 13th Jul)15ft (4.5m) 14s
Most Powerful 3PM (Sun 13th Jul)16ft (5.0m) 16s

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

Updates in  hr  min  s Forecast update imminent
Fri
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wed
23
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.2
W
1.1
W
1.8
NW
2.5
NW
4.5
WNW
5
WNW
5
WNW
4.5
WNW
3.5
W
3
W
2
W
1.9
NW
2.5
W
3
W
3
W
2.4
W
2
W
1.6
W
1.4
W
1.3
W
1.8
W
1.6
W
1.8
W
2.1
W
2
WSW
1.4
WSW
1.6
WSW
1.5
WSW
1.2
W
1.6
WSW
1.9
WSW
1.6
WSW
1.5
WSW
1.4
WSW
1.3
WSW
1.2
WSW
Period(s) (?)151491014141615141311881413131312121212131514141716162119181616161514
Wave
Graph
(?)Metric surfscale
Energy (?)672734847170877548993137438835497934461375867891366325981912129774754262011421386214130602597174513971355232323292150167511551089876662
Wind
(km/h)
35
NE
25
NNE
20
N
25
NW
20
NNW
45
N
40
N
25
NW
15
SW
15
WSW
15
NE
30
W
50
WSW
30
SW
10
ESE
5
NE
5
SSE
15
SSW
25
SW
10
SSE
10
ESE
5
NW
15
ENE
5
ESE
15
ESE
10
SE
10
SSE
10
SSE
10
ESE
10
ESE
5
SW
10
E
10
E
10
NNE
15
E
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
on
ononcross-
on
cross-
on
oncrosscrosscross-
off
cross-
on
crosscrossoffcross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
glasscross-
off
offoffoffcross-
off
cross-
off
cross-
off
offcrosscross-
off
cross-
off
crosscross-
off
cross-
off
High Tide
/ height (m)
11:12PM
2.75
11:34AM
2.69
11:52PM
2.81
12:15PM
2.72
12:32AM
2.85
12:56PM
2.72
1:14AM
2.85
1:39PM
2.70
1:57AM
2.81
2:25PM
2.65
2:45AM
2.74
3:16PM
2.59
3:39AM
2.65
4:13PM
2.52
4:40AM
2.56
5:17PM
2.49
5:49AM
2.51
6:26PM
2.50
7:01AM
2.52
7:34PM
2.57
8:09AM
2.58
8:37PM
2.68
9:09AM
2.67
Low Tide
/ height (m)
5:26AM
0.32
5:42PM
0.33
6:07AM
0.25
6:22PM
0.29
6:48AM
0.21
7:03PM
0.28
7:31AM
0.20
7:47PM
0.30
8:16AM
0.24
8:34PM
0.36
9:05AM
0.31
9:26PM
0.43
10:00AM
0.40
10:25PM
0.51
11:00AM
0.48
11:31PM
0.55
12:07PM
0.54
12:41AM
0.54
1:15PM
0.53
1:50AM
0.47
2:20PM
0.47
2:53AM
0.36
Fri
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wed
23
Sunrise--7:58--7:58--7:58--7:56--7:56--7:56--7:54--7:54--7:54--7:52--7:52--7:50
Sunset5:19--5:20--5:21--5:21--5:22--5:22--5:23--5:24--5:24--5:25--5:27--5:28--
heavy rainthunderstorm mod rainthunderstorm rain showerslight rainthunderstorm heavy rainrain showersrain showersrain showersrain showersrain showerspart cloudpart cloudpart cloudpart cloudcloudclearclearpart cloudpart cloudmod rainrain showerslight raincloudcloudpart cloudclearclearclearclearclearclearclearcloud
Rain (mm)
22138813452032975---------722-----------
Temp. °C13141313131313131212111211121111911119910910981113981099998
Feels °C (?)61198845898851499766588575381045755574

Short Range Forecast: Heavy rain (total 96mm), heaviest during Fri afternoon. Very mild (max 14°C on Fri night, min 12°C on Sat night). Winds decreasing (strong winds from the NNE on Sun morning, light winds from the W by Mon morning).

Days 3-6 Weather Summary Heavy rain (total 23mm), heaviest during Mon night. Very mild (max 12°C on Mon afternoon, min 9°C on Wed morning). Winds decreasing (strong winds from the WSW on Tue afternoon, calm by Wed afternoon).

Days 6-9 Weather Summary Moderate rain (total 11mm), heaviest on Fri night. Very mild (max 11°C on Thu afternoon, min 7°C on Thu night). Wind will be generally light.

Long Range Forecast: Mostly dry. Very mild (max 13°C on Sun afternoon, min 5°C on Tue night). Wind will be generally light.

  • 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 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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