Pennington Bay Surf Break

Lat Long: 35.86° S 137.74° E

Pennington Bay Surf Forecast and Surf Report

Issued: 2 am 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Pennington Bay sea temperature is
15.1° C
0.0° 

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 18 Jul 2026:

  • Best quality surf: Saturday 25 Jul, 12AM (local time) - 7ft (2.1m), 14s period, S swell with cross-offshore winds.
  • Most powerful swell: Thursday 23 Jul, 3PM (local time) - 8ft (2.5m), 17s period, S swell with 4,252 kJ wave energy.
  • Next surfable swell (1★+): Saturday 18 Jul, 12PM (local time) - 3ft (0.9m), 13s period with SSW 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 Saturday (Jul 18) at 12PM. The primary swell is predicted to be 0.9m and 13s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Pennington Bay in the next 16 days are 2.5m 17s and forecast to arrive on Thursday (Jul 23) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Jul 19) at 12PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Sat 18th Jul)3ft (0.9m) 13s
Best Surf12AM (Sat 25th Jul)7ft (2.1m) 14s
Most Powerful 3PM (Thu 23rd Jul)8ft (2.5m) 17s

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


The Lowdown

Alright, let me break this down for you.

We’re looking at a solid stretch of swell on the way for Pennington Bay, but it’s a bit of a mixed bag with the wind. Things start off clean, then get a bit messy through the middle of the week, before a big pulse of energy arrives later on. The water temp is about average for this time of year, nothing unusual.

The first real standout is the combo we see on Saturday morning, July 18th. We’ve got a clean 3ft SSW swell with a nice 14-second period and a gentle offshore breeze from the NNE. The wave energy is moderate (336), and it’s going to be really clean. This is a fantastic window for the beginner-plus crew at Pennington Bay. The sandbar setup should be handling this well, and the wind is light enough to keep it glassy. Just keep in mind, crowds are often here, so you might have some company.

Sunday morning, July 19th, is also promising. The swell drops to 1ft, but that period jumps to 20 seconds – very long-period groundswell. The wind is still offshore, moderate at 12 mph, but clean. The energy is moderate (304). This long-period swell will wrap nicely into the bay, but at a beach break like this, it might break a little straight. Still, those long gaps between sets could make it easier to paddle out.

The middle of the week from Monday July 20th through to Thursday July 23rd sees the swell slowly building, but the wind shifts to cross-off and cross-on, making conditions less than perfect. The energy picks up, hitting moderate (617) on Tuesday morning, July 21st, with a 4ft SSW swell, but the cross-off wind keeps it a bit bumpy. It’s surfable, but not the best.

Then we hit a bigger pulse on Thursday July 23rd. The swell jumps to 8ft from the S with a 14-second period. The energy is strong (2187). This is getting into the too-big-for-beginners territory, and the cross-on wind is making it choppy. The sandbar might be handling it, but the quality is marginal.

Friday July 24th through Sunday July 26th is a bit of a write-off. The swell is still solid, but the wind is either cross or strong cross-on, and the energy is strong (up to 1375). The quality is poor, and a lot of this is going to be messy. By Sunday July 26th, the wind is howling at 25 mph, making it a total mess. This setup would be more interesting for kite surfing than paddle surfing.

Looking further out, the end of the month has potential. Morning of Tuesday July 28th shows a 8ft S swell with a long 16-second period, and the energy is very strong (2511). The wind is a gentle cross-shore, which is okay. This is only for experts – over 8ft is too big for most. The caveat is that long-period swell at a beach break might be a bit straight.

The best of the long-range looks is Wednesday morning July 29th, with a 5ft S swell, 13-second period, and a clean cross-off wind from the NW. The energy is moderate (866). This is a really good window for the more experienced surfers, as it’s clean and a solid size.

The final few days of the forecast, July 30th into August, are dominated by a huge pulse. Thursday July 30th sees 12ft S swell – that’s just too big for this break, even with good wind. After that, the wind turns onshore and the quality drops again. The energy is extreme (up to 4979), but it’s not for paddling.

So, my pick for the best on offer is Saturday morning, July 18th at Pennington Bay. Clean, offshore, 3ft, long period, and just a great session for the average surfer. The second best is Wednesday morning, July 29th – a bit bigger, but clean and punchy.

Rusty

Short Range Forecast

Mostly dry. Very mild (max 15°C on Sun night, min 12°C on Sat morning). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Wed morning. Very mild (max 15°C on Tue afternoon, min 11°C on Wed night). Mainly fresh winds.

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
1
1
1
1
1
3
1
2
1
0
0
0
2
2
2
3
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
14
0.8
SSW
13
0.8
SSW
13
0.4
SSW
20
0.7
SSW
18
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
1.3
SSW
14
1.3
SSW
13
1.1
SSW
13
1
S
12
0.8
S
14
2
SSW
12
3
SSW
14
2.5
S
14
2.5
S
17
2.5
S
15
2.1
S
14
2.2
S
14
2.1
S
14
Wave Graph
Metric surfscale
Energy kJ
317
232
225
127
329
432
408
376
714
617
431
304
253
1178
3680
2614
4252
2925
1835
1957
1735
Wind (km/h)
15
NNE
15
NNE
15
NNE
20
N
20
N
15
N
20
N
15
NNW
15
NNW
15
NNW
15
NW
15
NNW
20
WSW
30
SW
25
SSW
15
SW
15
SW
15
W
15
W
15
W
10
NW
Wind State
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
on
on
on
cross-on
cross
cross
cross-off
High Tide
6:16PM1.36m
6:52AM1.14m
6:42PM1.26m
7:19AM1.23m
7:06PM1.15m
7:52AM1.29m
7:28PM1.02m
8:30AM1.31m
7:48PM0.89m
9:14AM1.29m
7:54PM0.76m
10:08AM1.26m
Low Tide
11:48AM0.57m
00:42AM0.47m
12:29PM0.57m
00:55AM0.46m
1:11PM0.59m
1:10AM0.45m
1:57PM0.63m
1:26AM0.44m
2:51PM0.69m
1:44AM0.43m
4:21PM0.73m
1:56AM0.45m
1:49AM0.48m
clear
clear
part cloud
part cloud
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cloud
cloud
cloud
cloud
cloud
part cloud
rain showers
part cloud
part cloud
cloud
part cloud
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cloud
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:24
7:24
7:24
7:22
7:22
7:22
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:24
5:24
5:25
5:27
5:27
5:28
5:29
 mm
1
Temp °C
12
14
14
13
14
15
14
15
15
14
15
14
13
13
11
12
12
12
13
13
12
Feels °C
8
11
11
8
10
10
10
12
12
11
11
12
9
6
4
7
7
8
9
9
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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