Bali Bay (Glen Reef) Surf Break

Lat Long: 33.95° S 18.38° E

Bali Bay (Glen Reef) Surf Forecast and Surf Report

Issued: 7 am 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Bali Bay (Glen Reef) sea temperature is
13.4° C
2.0° 

Bali Bay (Glen Reef) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Bali Bay (Glen Reef) surf forecast from 11 Aug 2026:

  • Best quality surf: Thursday 13 Aug, 5AM (local time) - 5ft (1.6m), 19s period, SW swell with cross-offshore winds.
  • Most powerful swell: Thursday 13 Aug, 11AM (local time) - 8ft (2.4m), 17s period, SW swell with 3,307 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 11 Aug, 5PM (local time) - 4.5ft (1.3m), 12s period with SSW swell.

Best Forecast Surf Conditions for Bali Bay (Glen Reef) this week:

The surf forecast for Bali Bay (Glen Reef) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 5PM. The primary swell is predicted to be 1.3m and 12s period with a secondary swell of 0.6m and 24s. Another secondary swell of 1.4m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Bali Bay (Glen Reef) in the next 16 days are 2.4m 17s and forecast to arrive on Thursday (Aug 13) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 10s period and expected on Thursday (Aug 13) at 11PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Tue 11th Aug)4.5ft (1.3m) 12s
Best Surf 5AM (Thu 13th Aug)5ft (1.6m) 19s
Most Powerful11AM (Thu 13th Aug)8ft (2.4m) 17s

Table - best surf conditions forecast for Bali Bay (Glen Reef) over the next 16 days.


The Lowdown

Alright, Rusty here, let’s get into it.

We’ve got a solid run of surf kicking off Tuesday, August 11th, and it’s looking like a great stretch for the experienced crew at Bali Bay (Glen Reef). The water is sitting at 56°, which is a solid 4° cooler than usual for this time of year – a bit of a chill on the skin, so don’t forget that spring suit. The overall energy is pumping, with some serious swell numbers coming through.

Tuesday morning serves up a clean 7ft swell from the south, with a 12-second period. The cross-off wind from the ESE at 6 mph is keeping things tidy. The combined energy is strong (1848). That’s a proper wave for intermediate to advanced surfers. Tuesday afternoon drops a little to 4ft from the SSW, but still clean and fun.

Wednesday, August 12th, is where it really starts to fire. Morning brings a 6ft SW groundswell with a long 18-second period and perfect offshore wind from the east at 6 mph. The energy jumps to 2398 – that’s a lot of push. This is a standout session. The longer period means the reef will handle it beautifully, but expect longer lulls between sets. The afternoon stays similar with 6ft SW swell and 17-second period, just a touch lighter wind.

Thursday, August 13th, is the pick of the entire outlook. Morning sees 8ft of SW groundswell, 17-second period, and a clean cross-off breeze from the NNE at 9 mph. The energy is a massive 3553. That’s proper, powerful, long-period groundswell. This is a day for the experienced surfer, no question. The afternoon is still good, but the wind swings cross-shore, so the morning is the call.

Friday, August 14th, the swell backs off a touch to 6ft from the WSW, but still with a solid 15-second period. The morning stays clean with a cross-off breeze. The energy is still strong (1583). The afternoon gets a bit messy with the cross-shore wind.

Saturday, August 15th, is a hidden gem. Morning is glassy – that’s right, flat calm, with 6ft of WSW swell and a 14-second period. That’s a magic window for a reef break. The energy is moderate to strong (1182). The afternoon gets a light cross-on breeze, so the morning is the time.

Sunday, August 16th, the wind gets a bit tricky, with cross and cross-on conditions all day. The swell holds around 6ft to 7ft from the WSW, but the quality drops. Still worth a look if you’re keen, but the magic is gone.

Monday, August 17th, the swell pushes back up to 8ft from the WSW, but the wind is shifting, and the energy is high (2057). The morning has a cross-shore breeze, making it a bit bumpy.

Tuesday, August 18th, the swell gets big – 10ft from the SW, with a 12-second period. That’s expert territory. The morning has a clean cross-off wind from the NNW, but the afternoon turns to light rain and a cross-on wind. The energy is strong (2624). This is a beast of a day, only for the very skilled.

From Wednesday, August 19th, through to the end of the outlook, the quality drops. The swell stays in the 4ft to 8ft range, but the wind is inconsistent, with a lot of cross and cross-on conditions. The energy levels are moderate to strong at times, but it’s not the clean, groomed surf of the first week. There’s a highlight on Saturday, August 22nd afternoon, with a 8ft SW swell and a 14-second period, plus a gentler cross-shore breeze and a massive energy of 5057. That’s a lot of water moving, but it’s a bit sloppy. Then on Sunday, August 23rd, we get another glassy morning with 7ft from the WSW and a 13-second period – that’s a clean, solid option for the end of the run.

The best surf is hands down Thursday, August 13th morning, with that 8ft SW groundswell, 17-second period, and clean cross-off wind. The second standout is Wednesday, August 12th morning, with the 6ft SW groundswell and offshore wind. Those are the days to clear the schedule.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Thu afternoon, min 11°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 19°C on Fri morning, min 13°C on Fri night). Wind will be generally light.

Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
4
4
4
4
5
3
4
4
3
4
4
2
4
3
3
4
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
S
12
1.3
SSW
12
1.4
SW
21
1.9
SW
18
1.9
SW
17
1.9
WSW
16
2.4
SW
17
2.2
SW
16
2
WSW
16
1.9
WSW
15
1.7
WSW
14
1.8
WSW
14
1.8
WSW
14
1.7
WSW
14
1.8
WSW
14
1.7
WSW
14
2.1
WSW
14
2.5
WSW
13
2.4
WSW
13
2.2
WSW
13
1.7
WSW
12
Wave Graph
Metric surfscale
Energy kJ
1312
483
1850
2223
2238
1809
3307
2379
1908
1505
1257
1208
1161
1043
1179
1138
1633
2310
2057
1649
890
Wind (km/h)
10
ESE
10
SE
10
ESE
10
E
5
ESE
15
E
15
NNE
5
NW
15
NNE
15
N
10
NW
10
N
5
ESE
10
SSW
5
WNW
5
NNW
5
SSW
5
W
10
NNW
5
WNW
5
NW
Wind State
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
glassy
cross-on
glassy
cross
cross-on
glassy
cross
cross-on
cross
High Tide
2:36PM1.73m
2:54AM1.73m
3:18PM1.83m
3:36AM1.77m
3:58PM1.88m
4:15AM1.77m
4:35PM1.88m
4:52AM1.72m
5:11PM1.83m
5:27AM1.65m
5:47PM1.75m
6:03AM1.55m
6:22PM1.64m
Low Tide
8:24AM0.35m
8:50PM0.36m
9:06AM0.27m
9:33PM0.28m
9:45AM0.24m
10:13PM0.26m
10:21AM0.25m
10:50PM0.28m
10:56AM0.29m
11:26PM0.34m
11:29AM0.37m
00:00AM0.43m
12:02PM0.47m
00:36AM0.54m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:30
7:28
7:28
7:26
7:26
7:24
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:13
6:14
6:14
6:15
6:15
6:16
6:16
 mm
Temp °C
12
17
16
16
21
21
21
25
21
19
17
15
15
17
15
15
17
15
15
17
16
Feels °C
9
14
13
13
19
17
17
21
18
15
14
14
14
15
13
14
17
14
13
15
16
  • 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 Bali Bay (Glen Reef) Surf forecast

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

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