Pennington Bay Surf Break

Lat Long: 35.86° S 137.74° E

Pennington Bay Surf Forecast and Surf Report

Issued: 8 am 16 Sep 2026 (local time)

Forecast update in  hr  min

Today's Pennington Bay sea temperature is
15.1°C
1.0° 

Pennington Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Pennington Bay surf forecast from 16 Sep 2026:

  • Best quality surf: Thursday 17 Sep, 3AM (local time) - 7ft (2.2m), 15s period, S swell with cross-offshore winds.
  • Most powerful swell: Tuesday 22 Sep, 12PM (local time) - 10ft (3.0m), 17s period, S swell with 4,361 kJ wave energy.
  • Next surfable swell (1★+): Thursday 17 Sep, 3AM (local time) - 7ft (2.2m), 15s period with S swell.

Best Forecast Surf Conditions for Pennington Bay this week:

The surf forecast for Pennington Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 17) at 3AM. The primary swell is predicted to be 2.2m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Pennington Bay in the next 16 days are 3.0m 17s and forecast to arrive on Tuesday (Sep 22) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Tuesday (Sep 22) at 9AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Thu 17th Sep)7ft (2.2m) 15s
Best Surf 3AM (Thu 17th Sep)7ft (2.2m) 15s
Most Powerful12PM (Tue 22nd Sep)10ft (3.0m) 17s

Table - best surf conditions forecast for Pennington Bay over the next 16 days.


The Lowdown

Righto, let’s have a look at what’s coming up for Pennington Bay.

We've got a bit of a slow start here, but once the wind plays ball, this place can fire. The water temp is sitting around 59°, which is about a degree and a half warmer than average for the time of year – feels pretty standard, nothing wild.

The first decent window kicks off on the Thursday morning. Swell is dropping from 6ft out of the south, with a 14-second period, giving that combo moderate wave energy (1427). Wind is light and cross-offshore, so conditions will be clean. This is solid for experienced surfers, but the size and power might be a bit much for beginners. The afternoon cleans up even more with a gentle offshore breeze, and the swell backs off to 6ft – that’s a really nice session for those who know what they’re doing. Crowds can gather here often, so get out early.

Friday morning still has clean conditions with a cross-offshore breeze, but the swell drops to 5ft and the period stretches out to 17 seconds. That’s a long-period groundswell, which means better shaped waves but longer lulls. The energy is moderate (1156). It’s a bit weaker in the afternoon.

Saturday and Sunday are small and not worth paddling out for. Monday the 21st sees a jump back up to 8ft to 10ft, but the wind is cross-onshore and choppy – that’s more of a kite day than a surf day.

Tuesday the 22nd is the real standout. Morning has 8ft of south swell with a 16-second period (strong energy at 3453), and clean cross-offshore winds. That’s big and powerful – experts only. The afternoon gets even better: 10ft south swell, 17-second period, and clean again (4258 combined energy). That is serious groundswell, best handled at a point or reef, but Pennington Bay is a sandbar so it might close out a bit. Still, for a strong surfer, that’s the session of the forecast.

Wednesday the 23rd morning keeps the quality up with offshore winds and 6ft south swell at 15 seconds, excellent conditions for experienced surfers. The afternoon is a bit smaller but still clean.

After a quiet spell mid-week, Saturday the 26th delivers another pair of excellent windows. Both morning and afternoon have 6ft south swell with 18-19 second periods and clean offshore winds. Combined energy is very strong (2622 and 2325). Again, this is for experienced surfers only – the power is real.

After that, winds get messy and the surf fades. There’s a big swell on the 1st of October but it’s blown out with onshore winds.

Best on offer: Thursday afternoon the 17th for a manageable, clean session, and Tuesday the 22nd for the heavy stuff.

- Rusty

Short Range Forecast

Mostly dry. Very mild (max 18°C on Fri afternoon, min 9°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Sat afternoon, min 10°C on Mon night). Mainly fresh winds.

Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
2
4
3
3
1
2
1
0
0
2
0
0
0
0
0
2
2
4
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
S
15
2.5
S
15
2.4
S
15
1.9
S
14
1.7
S
14
1.6
S
15
1.4
S
17
1.2
S
16
1
S
14
0.8
S
13
0.7
S
13
1
S
15
1.1
S
16
1.1
S
15
1.6
SSW
14
2.5
S
15
3
S
15
3
S
15
2.5
S
16
3
S
17
2.3
S
15
Wave Graph
Metric surfscale
Energy kJ
3178
3027
2507
1427
1079
1104
1156
710
423
225
168
422
596
522
1091
2942
4204
3463
3453
4258
2465
Wind (km/h)
20
SE
20
SE
15
ESE
10
ENE
15
NE
10
N
25
NNW
20
NW
20
NNW
20
NNW
15
N
25
N
20
WNW
30
WSW
25
SSW
20
SSE
20
SSE
20
SE
30
ENE
20
E
20
NE
Wind State
cross-on
cross-on
cross
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross
cross-on
on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
High Tide
6:02PM0.93m
6:42AM1.51m
6:17PM0.83m
7:10AM1.45m
6:24PM0.73m
7:40AM1.35m
5:48PM0.64m
8:13AM1.24m
9:02AM1.12m
11:14AM1.03m
Low Tide
12:43PM0.39m
11:44PM0.21m
1:17PM0.44m
11:58PM0.23m
1:55PM0.51m
00:07AM0.27m
2:47PM0.58m
00:03AM0.32m
11:32PM0.37m
10:06PM0.37m
9:26PM0.32m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:16
6:15
6:13
6:11
6:11
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:09
6:09
6:10
6:12
6:13
6:13
6:14
 mm
Temp °C
11
10
10
10
12
12
17
18
18
19
21
21
19
17
13
12
12
12
11
13
15
Feels °C
7
5
5
8
9
10
11
13
13
14
17
16
16
12
9
6
6
6
5
8
9
  • 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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Information about the Pennington Bay Surf forecast

The above surf forecast table for Pennington Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Pennington Bay can be found by selecting the local surf guide option on the grey menu. Our Pennington 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 (Pennington 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 Pennington 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.

Are you planning a holiday in Kangaroo Island? If you are looking for accommodation near Pennington Bay, camping, hotels and holiday cottages in Kangaroo Island, consider staying in Kingscote which is 25 km (16 miles) away. Alternatively, find information about places to stay and car hire in Rapid Bay which is 54 km (34 miles) away

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