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Surf Forecasts:

Porpoise Bay surf break

Porpoise Bay surfForecast / Catlins / New Zealand

information circle12 Day Weather and Surf, issued 11 pm Thursday 18 Sep 2025 NZST
Forecast update in hr  min  s Forecast update imminent
Porpoise Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porpoise Bay sea temperature is
10.6° C
 (Which is 1.1°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Porpoise Bay this week:

The surf forecast for Porpoise Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 9AM. The primary swell is predicted to be 2.4m and 10s period with a secondary swell of 0.9m and 12s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Porpoise Bay in the next 12 days are 2.5m 11s and forecast to arrive on Friday (Sep 19) at 3PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Sunday (Sep 21) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Fri 19th Sep)8ft (2.4m) 10s
Best Surf 9AM (Fri 19th Sep)8ft (2.4m) 10s
Most Powerful 3PM (Fri 19th Sep)8ft (2.5m) 11s

Table - best surf conditions forecast for Porpoise Bay over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
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Short Range Forecast Some drizzle, heaviest during Thu night. Very mild (max 14°C on Sat afternoon, min 3°C on Thu night). Winds increasing (calm on Fri afternoon, fresh winds from the WNW by Sat night).

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Mon night. Very mild (max 16°C on Mon afternoon, min 7°C on Sun night). Wind will be generally light.

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thu
25
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
4
4
2
3
2
3
1
0
4
3
1
1
4
4
3
3
2
3
2
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
SSW
2.4
SSW
2.5
S
1.9
S
1.2
S
0.8
SSW
1
SSW
0.9
SSW
0.7
SSW
1.6
SW
1.4
SW
1.2
SW
1.1
SW
1.6
SW
1.9
SW
1.6
SW
1.3
SW
1.1
SW
1.4
SW
1.2
SW
1.1
SW
Period(s) (?)91011111317161516151313121514141414141313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)116811301504922455317552377226107471148833511541438951586536722495380
Wind
(km/h)
20
SW
15
NW
5
WSW
20
NNW
15
N
15
NNE
15
NNE
30
NW
25
WNW
15
NNW
10
N
20
NW
15
W
0
ESE
15
ENE
15
NW
10
NNW
10
SE
5
N
5
SW
15
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
off		glasscross-
off		offoffcross-
off		cross-
off		cross-
off		offoffcross-
off		crossglasscross-
off		cross-
off		offcross-
on		offcross-
on		on
High Tide
/ height (m)
12:03AM
2.11
12:32PM
2.17
12:48AM
2.16
1:13PM
2.19
1:29AM
2.18
1:52PM
2.19
2:07AM
2.19
2:28PM
2.17
2:45AM
2.17
3:04PM
2.12
3:22AM
2.12
3:41PM
2.06
4:00AM
2.06
4:18PM
1.98
Low Tide
/ height (m)
6:10AM
0.22
6:34PM
0.29
6:54AM
0.18
7:16PM
0.25
7:34AM
0.17
7:54PM
0.23
8:13AM
0.19
8:31PM
0.25
8:51AM
0.23
9:08PM
0.29
9:29AM
0.31
9:46PM
0.36
10:09AM
0.41
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thu
25
Sunrise-6:39--6:37--6:35--6:33--6:31--6:28--6:26-
Sunset--6:36--6:37--6:37--6:39--6:40--6:42--6:44
rain showers
clear
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
light rain
cloud
cloud
rain showers
cloud
part cloud
part cloud
light rain
light rain
Rain (mm)
1-----------3--1---12
Temp. °C68971114101213111416109981111999
Feels °C (?)-2460610567510115865109876
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Eyeball surf reportRecent Eyeball Surf Reports for Catlins

  1. weather stationWind Update The wind is still cross-on at Porpoise Bay (strong winds from the SSW at ASCATC169E47S 39 km from Porpoise Bay). 2.9m 8s swell from the SSW with a 0.8m 15s groundswell from the SW. 2 swells combining so expect closeout sets.

    2 hours 30 minutes ago Porpoise Bay
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39 km away, 2 h 30 min ago

44 km/h
SSW
0.0
10.6
Air / Water (°C)
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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Porpoise Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Porpoise Bay at:
surf-forecast.com

Information about the Porpoise Bay Surf forecast

The above surf forecast table for Porpoise Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Porpoise Bay can be found by selecting the local surf guide option on the grey menu. Our Porpoise Bay 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 (Porpoise Bay) 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 Porpoise Bay 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.

Poro Point is 4 km (2 miles) from San Fernando. If you plan a holiday in West Luzon, look for hotels and other accommodation in San Fernando. San Fernando has rooms for a wide range of budgets as well as car hire and transport links.

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