Larsen Street surfForecast / West Coast South Island / New Zealand

information circle12 Day Weather and Surf, issued 6 pm Thursday 08 Jan 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
18.5° C
(Which is 1.3°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 Friday (Jan 09) at 4AM. The primary swell is predicted to be 1.2m and 11s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Larsen Street in the next 12 days are 4.0m 11s and forecast to arrive on Sunday (Jan 11) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Thursday (Jan 15) at 4PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Fri 9th Jan)4ft (1.2m) 11s
Best Surf 4AM (Sat 10th Jan)5ft (1.6m) 12s
Most Powerful10PM (Sun 11th Jan)13ft (4.0m) 11s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 10mm), heaviest on Fri morning. Very mild (max 19°C on Fri afternoon, min 15°C on Fri night). Winds increasing (calm on Thu night, fresh winds from the N by Sun morning).

Days 3-6 Weather Summary Moderate rain (total 18mm), heaviest on Sun night. Very mild (max 19°C on Sun afternoon, min 12°C on Mon night). Winds decreasing (fresh winds from the NNW on Sun afternoon, calm by Wed morning).

Thu
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
2
1
1
0
0
0
0
1
1
2
2
0
2
2
2
2
3
Swell
Height Map
Wave Height (m) & direction (?)
0.9
WSW
1
WSW
0.9
WSW
0.9
WSW
1.7
W
1.7
W
1.2
WSW
0.8
WSW
2.1
WNW
3.5
WNW
3.5
WNW
2.2
WNW
2
WSW
1.7
WSW
1.6
W
1.4
W
1.1
WSW
1
WSW
0.9
WSW
0.6
NW
0.9
WSW
Period(s) (?)10101113121515149111211121110101010101215
Wave
Graph
(?)Metric surfscale
Energy kJ (?)14920220228980012936392736662384349011221082672512384230201173104349
Wind
(km/h)
35
SW
15
SW
20
NNE
25
SW
20
SSW
20
NNE
10
WNW
20
N
35
NNE
30
NNW
30
W
30
SW
30
SW
15
S
10
SSW
25
SW
15
S
5
S
5
S
10
SSW
10
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscross-
off
crossoncross-
on
cross-
on
cross-
on
cross-
on
crosscrosscross-
off
cross-
off
crosscross-
off
glasscross-
off
cross-
off
off
High Tide
/ height (m)
3:35AM
2.57
3:54PM
2.61
4:22AM
2.43
4:43PM
2.44
5:13AM
2.31
5:36PM
2.29
6:10AM
2.22
6:36PM
2.19
7:12AM
2.19
7:41PM
2.17
8:14AM
2.21
8:42PM
2.21
9:10AM
2.29
Low Tide
/ height (m)
9:26PM
0.31
9:43AM
0.45
10:13PM
0.47
10:32AM
0.61
11:01PM
0.63
11:24AM
0.76
11:55PM
0.76
12:23PM
0.86
12:53AM
0.85
1:26PM
0.90
1:55AM
0.87
2:28PM
0.87
2:54AM
0.83
Thu
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Sunrise--6:09--6:09--6:11--6:13--6:13--6:15--6:16
Sunset9:10--9:10--9:10--9:09--9:09--9:09--9:08--
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
rain showers
rain showers
light rain
light rain
rain showers
part cloud
clear
clear
cloud
part cloud
part cloud
light rain
part cloud
light rain
light rain
Rain (mm)
--3---223412------2-25
Temp. °C171718191718191918191716161415161513161616
Feels °C (?)1215161815182018141514910810111012171516
  • 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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