Surf Forecasts:
Pennington Bay surf forecast from 23 Jul 2026:
- Best quality surf: Thursday 30 Jul, 12AM (local time) - 7ft (2.1m), 13s period, S swell with glassy winds.
- Most powerful swell: Friday 24 Jul, 3AM (local time) - 8ft (2.5m), 16s period, S swell with 3,588 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 12AM (local time) - 4ft (1.2m), 11s 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 Monday (Jul 27) at 12AM. The primary swell is predicted to be 1.2m and 11s period with a secondary swell of 0.5m and 15s. 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 2.5m 16s and forecast to arrive on Friday (Jul 24) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Tuesday (Jul 28) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 27th Jul) | 4ft (1.2m) 11s |
| Best Surf | 12AM (Thu 30th Jul) | 7ft (2.1m) 13s |
| Most Powerful | 3AM (Fri 24th Jul) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Pennington Bay over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ll be straight with you – this outlook for Pennington Bay is a bit of a slow burn, but there’s a real gem waiting for those who can hold out. The first few days are a write-off, with messy, cross-onshore winds and lumpy conditions that just aren’t worth paddling out for. The swell is there, but the wind is ruining it. We’re looking at a solid gap of about 4 days with no real recommendation.
From Friday the 31st of July, things start to turn. The morning is still a bit average, but the Friday afternoon session is the first real standout. We’ve got a clean 5 ft south swell rolling in with a very long 19-second period – that’s proper groundswell energy. The wind is a gentle offshore from the north, making for clean, peeling waves. The combined energy is strong (1723), so there’s plenty of push. This is expert territory at that size, but for those who can handle it, the conditions are excellent.
Then, the real jewel of the forecast lands on Sunday, August 2nd. The afternoon session is the best on offer. We’re looking at a 7 ft swell from the south-southwest, packing a very strong combined energy of 4458. The period is a solid 16 seconds, and with a light northwesterly wind, it’s clean and offshore. This is excellent surf for experienced surfers – it’s not for beginners, but for the crew who knows what they’re doing, this is a session to mark on the calendar. The water temp is about average for the time of year, no major anomalies to report.
The following week keeps some decent size, with a few more clean windows, but nothing quite tops that Sunday afternoon. The early part of August sees a few more days with offshore winds, though the size can get a bit punchy. The morning of Wednesday the 5th of August offers another good window with a 6 ft south swell and a moderate offshore breeze, but it’s not the standout.
Wind at Pennington Bay (Kangaroo Island) is a key factor here. The break is fairly exposed to the south swell, and when it’s clean, it can fire. But when that wind is wrong, it’s a mess. The crowds are noted as “often”, so expect company on the good days, especially on that Sunday afternoon.
Stay patient, point your car for the bay on the 2nd of August, and score the best of the run.
Rusty
Short Range ForecastMostly dry. Very mild (max 15°C on Sat morning, min 12°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Tue afternoon. Very mild (max 15°C on Mon night, min 11°C on Tue night). Winds decreasing (fresh winds from the NW on Mon night, light winds from the SSW by Wed afternoon). | ||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | S 16 | S 16 | S 15 | S 14 | S 13 | S 13 | SSW 12 | S 11 | S 11 | S 11 | S 11 | S 13 | SSW 14 | S 16 | S 16 | S 15 | S 14 | S 14 | S 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 3567 | 3453 | 2629 | 1650 | 1318 | 1053 | 1207 | 596 | 501 | 364 | 260 | 440 | 465 | 1591 | 2567 | 2445 | 2886 | 2602 | 1533 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross | on | on | on | on | glassy |
High Tide | 10:08AM1.26m | 11:22AM1.22m | 1:02PM1.22m | 2:22PM1.26m | 5:39AM0.74m | 3:15PM1.32m | 5:22AM0.82m | 3:55PM1.38m | |||||||||||
Low Tide | 1:56AM0.45m | 1:49AM0.48m | 11:50PM0.49m | 10:13PM0.39m | 10:28PM0.31m | 8:12AM0.72m | 10:47PM0.26m | 9:18AM0.67m | 11:08PM0.23m | ||||||||||
 |  |  | | | |  |  | | | | | | |  | | | | | |
 | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — |
 | — | — | 5:29 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 12 | 13 | 13 | 14 | 15 | 15 | 14 | 15 | 15 | 13 | 13 | 14 | 15 | 15 | 14 | 13 | 11 | 12 | 12 |
Feels °C | 6 | 7 | 8 | 11 | 11 | 10 | 11 | 12 | 12 | 11 | 8 | 8 | 9 | 10 | 9 | 8 | 7 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 15 | S 14 | S 13 | S 13 | S 12 | S 11 | S 11 | S 11 | S 11 | S 13 | SSW 14 | S 16 | S 16 | S 15 | S 14 | S 14 | S 13 |
| kJ | 3567 | 3453 | 2629 | 1650 | 1318 | 1053 | 841 | 596 | 501 | 364 | 260 | 440 | 465 | 1591 | 2567 | 2445 | 2886 | 2602 | 1533 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 16 | S 11 | S 15 | S 14 | SSW 14 | — | SW 11 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 42 | 61 | 116 | 187 | 384 | — | 258 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 10 | S 10 | S 10 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 52 | 30 | 8 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | W 3 | — | — | SSW 12 | — | — | — | NNW 3 | NNW 4 | NNW 4 | NW 4 | — | — | — | — | — |
| kJ | — | — | — | 5 | — | — | 1207 | — | — | — | 5 | 21 | 20 | 28 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 57 | 57 | 607 | 607 | 57 | 87 | 57 | 57 | 59 | 54 | 54 | 59 | 89 | 84 | 1107 | 57 | 57 | 57 | 57 |
Best forecast wave conditions in Kangaroo Island | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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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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