Nanwan Beach (South Bay) Surf Break

Lat Long: 21.96° N 120.76° E

Nanwan Beach (South Bay) Surf Forecast and Surf Report

Issued: 7 am 01 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nanwan Beach (South Bay) sea temperature is
29.6° C
0.6° 

Nanwan Beach (South Bay) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Nanwan Beach (South Bay) surf forecast from 1 Aug 2026:

  • Best quality surf: Saturday 8 Aug, 8AM (local time) - 11ft (3.5m), 8s period, WSW swell with offshore winds.
  • Most powerful swell: Wednesday 5 Aug, 11AM (local time) - 6ft (1.9m), 18s period, E swell with 2,247 kJ wave energy.
  • Next surfable swell (1★+): Sunday 2 Aug, 5PM (local time) - 1ft (0.3m), 18s period with E swell.

Best Forecast Surf Conditions for Nanwan Beach (South Bay) this week:

The surf forecast for Nanwan Beach (South Bay) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 02) at 5PM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.6m and 7s. Another secondary swell of 0.5m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Nanwan Beach (South Bay) in the next 16 days are 1.9m 18s and forecast to arrive on Wednesday (Aug 05) 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 3.5m 19s period and expected on Thursday (Aug 06) at 5PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Sun 2nd Aug)1ft (0.3m) 18s
Best Surf 8AM (Sat 8th Aug)11ft (3.5m) 8s
Most Powerful11AM (Wed 5th Aug)6ft (1.9m) 18s

Table - best surf conditions forecast for Nanwan Beach (South Bay) over the next 16 days.


The Lowdown

G’day, Rusty here, lookin’ at the surf ahead for Nanwan Beach (South Bay). It’s a bit of a mixed bag this run, with a whole lot of nothin’ up front, then a big pulse of swell that’s gonna be way too much for this spot, and maybe a little window of something decent right at the end if you’re an experienced local.

The first few days are pretty dead. Saturday the 1st and Sunday the 2nd? Don’t even bother. We’re talkin’ ankle to knee-high dribble, with a 7-second period that’s got no energy behind it. The combined energy is barely a whisper at 30 (minuscule). The water is a warm 85°, which is about normal for this time of year. Early on the 2nd, there’s a tiny bump of East swell at 18 seconds, but it’s only 1 ft and the energy is still low at 113 (weak). It’s just not worth paddling out for.

Monday the 3rd starts to show a pulse. The morning is a write-off with 12 mph cross-shore wind, but Monday afternoon, the wind swings offshore from the North at 6 mph, and we get a 3 ft East swell at a long 16 seconds. The energy climbs to 486 (moderate). That’s a clean, long-period groundswell, but it’s still small. The conditions are clean, but it’s not a stand-out – just a sign of life.

The real swell builds from Tuesday the 4th. By Wednesday the 5th morning, we’re seeing 6 ft of East swell at 18 seconds, with a cross-offshore wind from the WNW at 12 mph. The combined energy is pumping at 2299 (strong). That’s a proper, clean swell, but it’s already getting big for beginners. The direction is East, but this break’s optimum is SE, so it’s a bit of a mismatch.

And then it just goes nuts. From Saturday the 8th, the swell becomes enormous. We’re talkin’ 13 ft on the 8th, then 23 ft on Sunday the 9th, with a period of 12 seconds. The energy readings are off the charts – 3069 and 13739 (very strong). This is way, way too big for Nanwan Beach. The wind is howling from the WNW at 28-31 mph, creating a clean but terrifyingly huge mess. Only absolute experts with a death wish should even look at this. The swell is too big – it’s pure survival, not surfing.

The run continues with 13 ft to 20 ft swells through to the 12th. The energy is still in the thousands (very strong). The wind is still strong, too. It’s a no-go zone for paddle surfing; this setup is lookin’ more interesting for kite surfing than a traditional paddle session.

Finally, towards the end of the run, it starts to ease. Thursday the 13th afternoon, the swell drops to 10 ft from the SW at 10 seconds, with a gentle 9 mph WNW cross-offshore wind. The energy is still high at 1983 (strong), but the report says “excellent surf conditions for experienced surfers.” That’s the one to circle. The swell is over 8 ft, so it’s expert-only, but the wind is light and offshore, making it clean. This is a promising, but less certain, late call.

Friday the 14th is also a possibility, with 10 ft SW swell and light 6 mph WNW winds. The energy is 1325 (strong). It’s still big, but very clean.

After that, the swell fades fast. By the 16th, it’s back to 6 ft to 6 ft, but the conditions are poor, so it’s not worth a mention.

So, the best on offer is that window on Thursday the 13th afternoon and Friday the 14th. It’s big, powerful, and clean. If you’re an experienced surfer, that’s your moment. For everyone else, this is a long stretch of waiting.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Mon night. Warm (max 30°C on Mon afternoon, min 27°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 29°C on Tue morning, min 27°C on Tue night). Wind will be generally light.

Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
1
1
0
2
3
1
2
4
3
0
0
0
1
1
1
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.3
E
18
0.5
E
16
0.7
E
15
0.9
E
16
1.2
E
16
1.3
E
16
1.5
E
16
1.7
E
18
1.9
E
18
0.8
W
7
0.9
SW
7
1.1
SW
8
1.1
SW
8
1.1
SW
8
1.3
SSW
10
1.5
SW
9
3
WSW
7
Wave Graph
Metric surfscale
Energy kJ
19
17
17
17
56
133
225
412
705
822
1106
1780
2247
66
75
140
131
173
301
390
934
Wind (km/h)
5
SSW
10
ESE
5
NNE
10
NE
10
NE
10
NNW
20
ENE
10
N
5
NNW
15
E
10
SSE
10
WNW
20
WNW
15
NW
10
WNW
20
WNW
10
WNW
10
W
15
W
15
WSW
10
NW
Wind State
glassy
cross-on
cross-off
cross-off
cross-off
off
cross
off
off
cross
on
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
High Tide
8:05AM1.16m
9:01PM0.66m
8:39AM1.09m
9:30PM0.72m
9:16AM0.99m
10:03PM0.79m
9:57AM0.86m
10:43PM0.86m
10:48AM0.72m
11:31PM0.93m
12:04PM0.58m
00:31AM0.99m
2:26PM0.49m
1:43AM1.07m
Low Tide
3:12PM0.17m
1:59AM0.35m
3:34PM0.21m
2:49AM0.36m
3:56PM0.26m
3:48AM0.37m
4:18PM0.31m
5:01AM0.38m
4:40PM0.37m
6:37AM0.37m
5:03PM0.41m
8:36AM0.31m
5:28PM0.46m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
thunderstorm
clear
clear
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:28
5:30
5:30
5:30
5:31
5:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:36
6:36
6:35
6:34
6:34
6:32
 mm
1
1
Temp °C
29
29
28
29
29
28
29
30
28
29
29
28
28
29
28
29
29
29
29
29
29
Feels °C
34
33
32
33
33
32
30
32
32
31
31
32
30
31
32
31
32
35
32
32
34
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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 Nanwan Beach (South Bay) Surf forecast

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

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