Reef

both

Level 8/10

Rennies / Flat Rock

Ulladulla, Australia

🦈Sharks🪨Rocks🪸Sharp reef🦔Urchins🌀Strong rips👊Localism

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Right reef in the southern corner of Rennies Beach and a powerful left wedge off Flat Rock that sucks off the reef onto sand - big, wide barrels. SE swell. It works best on a SE swell with WNW winds around mid tide. Watch for: cliff jump entry, urchins, rips, localism, sharks.

Rennies / Flat Rock surf forecast

Model forecast for swell, wind and tide.

10-Day Forecast

Today20

Poor

0.7mE@6s

15km/h

0.7m@6s

15km/h

Wed21

Poor

0.8mENE@9s

15km/h

0.8m@9s

15km/h

Thu22

Poor

0.9mENE@8s

15km/h

0.9m@8s

15km/h

Fri23

Poor

0.8mENE@13s

17km/h

0.8m@13s

17km/h

Sat24

Poor

1.1mENE@11s

11km/h

1.1m@11s

11km/h

Sun25

Poor

1.3mENE@8s

8km/h

1.3m@8s

8km/h

Mon26

Poor

1.5mSSE@10s

12km/h

1.5m@10s

12km/h

Tue27

Poor

1.4mS@8s

9km/h

1.4m@8s

9km/h

Wed28

Poor

1.7mESE@8s

13km/h

1.7m@8s

13km/h

Thu29

Poor

0.9mSE@13s

7km/h

0.9m@13s

7km/h

5+ days out, less certain

View 2-year historical scores →

Today's ConditionsToday's Conditions

Find Flights

Best session: MorningAM 8 km/h · PM 20 km/h · Tide at 9am (0.6m)

Swell

0.7m

E(81°)

Score: 2/25

Period

Short period

Score: 0/25

Wind

15km/h

NNE(30°)

Score: 1/25

Weather

19°C

0.0mm11%

First light 5:39amSunrise 6:09amSunset 7:17pmLast light 7:47pm

Windswell

0.4m@2s

Secondary

0.2m

Confidence

100%

Location & Conditions

Loading map...

Swell0.7m @6s E in window

Wind15 km/h NNE onshore

SwellWind: Offshore Cross OnshoreShaded = inside ideal window

Showing forecast for today · all day

Hourly Forecast, Tide & Strike Windows

Strike window: 5:39–8:03am · droppingStrike window: 11:48am–7:47pm · through highIdeal tide: mid

6am

9am

12pm

3pm

6pm

6am

9am

12pm

3pm

6pm

6am

9am

12pm

3pm

6pm

6am

9am

12pm

3pm

6pm

6am

9am

12pm

3pm

6pm

6am

9am

12pm

3pm

6pm

6am

9am

12pm

3pm

6pm

6am

9am

12pm

3pm

6pm

6am

9am

12pm

3pm

6pm

6am

9am

12pm

3pm

6pm

°C

10°

19°

23°

22°

20°

12°

20°

23°

21°

13°

19°

21°

22°

21°

13°

20°

23°

21°

16°

22°

26°

24°

19°

23°

26°

24°

21°

13°

16°

18°

17°

12°

14°

15°

17°

16°

12°

16°

18°

17°

10°

17°

21°

20°

18°

2m1.0

sec

13s

11s

10s

13s

swell

windkm/h

7g13

9g21

18g41

22g49

19g41

6g12

8g19

18g40

21g46

18g40

2g9

6g17

19g43

22g51

21g48

5g10

11g26

19g43

24g52

21g49

4g9

5g17

14g33

18g42

15g41

2g15

9g19

12g36

7g33

6g41

12g29

13g30

12g33

11g39

12g40

7g21

9g19

7g21

9g26

11g29

15g27

13g30

13g33

12g40

9g40

7g17

5g19

7g25

9g35

9g39

tidem

4:48am1.0m

9:54am0.6m

4:27pm1.3m

5:43am1.1m

11:03am0.6m

5:15pm1.3m

6:19am1.2m

12:03pm0.5m

6:03pm1.4m

6:53am1.3m

12:51pm0.5m

6:49pm1.4m

1:07am0.3m

7:28am1.4m

1:33pm0.4m

7:37pm1.5m

1:45am0.3m

8:03am1.6m

2:19pm0.4m

8:24pm1.5m

2:21am0.4m

8:43am1.8m

3:10pm0.3m

9:10pm1.5m

2:59am0.3m

9:26am1.8m

3:55pm0.3m

10:03pm1.4m

3:43am0.4m

10:09am1.8m

4:55pm0.2m

10:54pm1.3m

4:26am0.4m

Ideal tide (from tide preference)Strike windowNight

Tide times today

4:48 am

High · 0.97m

9:54 am

Low · 0.62m

4:27 pm

High · 1.27m

Times shown in spot-local time.

Strike Score Breakdown

Poor

Components

Swell Direction6/25

Swell Size2/25

Swell Period0/25

Wind1/25

Raw Score9/100

Adjustments

🌊💨 Windswell-3

💨 Gusty Wind-5

⚠️ Weak Component-5

📉 Undersized Swell-11

🚫 Undersized Capmax 30

Adjusted Score0/100

Confidence

Multiplier×1.00

Final Score0

Plan Your Strike

Return flights to SYD, departing today with a 5-day trip window.

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Location & Conditions

Loading map...

Swell0.7m @6s E in window

Wind15 km/h NNE onshore

SwellWind: Offshore Cross OnshoreShaded = inside ideal window

Showing forecast for today · all day

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Spot Details

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Swell Requirements

Optimal direction: SE (135°)
Direction range: 80° - 190°
Size range: 1.4m - 4.5m
Ideal size: 2.8m - 3.7m
Height multiplier: 1.00×
Ideal period: 14s+

Wind Requirements

Optimal direction: WNW (290°)
Offshore range: 245° - 335°

Tide Requirements

Optimal tide: mid

Water temp

19°C

Wetsuit

3/2mm fullsuit

Difficulty

8/10

Crowd level

4/10

Frequently Asked Questions

What tide is best at Rennies / Flat Rock?

The Rennies / Flat Rock profile favors mid tide. Compare this preference with the forecast tide and local conditions before choosing a session.

What wind direction is offshore at Rennies / Flat Rock?

The Rennies / Flat Rock profile uses wind from WNW (290°) as its preferred direction, with an offshore range of 245° to 335°. Wind speed matters too: light winds outside that range can still produce surfable conditions, while strong offshore winds can make takeoffs difficult.

What swell size and direction work best at Rennies / Flat Rock?

The Rennies / Flat Rock scoring profile favors swell from SE (80° to 190°), a swell-height range of 1.4m to 4.5m, and a reference period of 14s. These are model inputs, not guaranteed breaking-wave heights or a promise that the surf will suit every ability.