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 pm 07 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 7 Aug 2026:

  • Best quality surf: Monday 10 Aug, 2AM (local time) - 11ft (3.5m), 10s period, SW swell with cross-offshore winds.
  • Most powerful swell: Monday 10 Aug, 8AM (local time) - 13ft (4.0m), 10s period, SW swell with 2,791 kJ wave energy.
  • Next surfable swell (1★+): Monday 10 Aug, 2AM (local time) - 11ft (3.5m), 10s period with SW 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 Monday (Aug 10) at 2AM. The primary swell is predicted to be 3.5m and 10s period with a secondary swell of 0.4m and 10s. 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 4.0m 10s and forecast to arrive on Monday (Aug 10) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 14s period and expected on Saturday (Aug 08) at 2PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 10th Aug)11ft (3.5m) 10s
Best Surf 2AM (Mon 10th Aug)11ft (3.5m) 10s
Most Powerful 8AM (Mon 10th Aug)13ft (4.0m) 10s

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


The Lowdown

Howdy, Rusty here again. Look, I’m not gonna sugarcoat it – the next couple of weeks at Nanwan Beach (South Bay) are a tough pill to swallow. We’ve got plenty of swell, but the wind is just wrecking it. There’s a dry spell right off the bat: Saturday and Sunday (August 8th and 9th) are total write-offs with howling westerly winds around 28 mph kicking up the chop.

Then things get real. Come Monday the 10th, a big 12-foot southwest swell hits. The combined wave energy is cranking at 2515, which is serious power. But with the period around 9-10 seconds and that strong wind, it’s going to be too big and ugly for a fun paddle. This size, over 8 feet, is pure expert stuff and honestly, this spot might be better suited for the kite guys that day.

The middle of the week, from Tuesday the 11th through to Friday the 14th, the swell stays in the 7-to-8-foot range from the southwest, with moderate to strong energy. The wind is a constant cross-off breeze at 15 to 22 mph, but the surf quality is just marginal. The crowds are marked as ‘often’, so expect company even when it’s not great. The swell direction from the southwest isn’t the best match for this break either.

The one real beacon of hope, and the only time I’d point you to the water, is Sunday the 16th and Monday the 17th. On Sunday afternoon, the swell drops to a manageable 6 feet from the southwest, with an 9-second period and moderate energy (592). The wind lays right down to a gentle 9 mph cross-off from the west-northwest. But Monday morning is the gem – just a light 6 mph breeze on a 6-foot southwest swell. The forecast straight-up says “expect good surf conditions.” That’s the window. It’ll be clean and rideable, a proper session after all that noise.

After that, it’s a slow fade. From Tuesday the 18th onward, the swell drops under 6 feet, the wind switches to the north and northeast, and it’s all poor or marginal again through to the 23rd.

So, my advice? Sleep in this weekend. Save your energy for that Monday the 17th. That’s the one.

Rusty.

Short Range Forecast

Light rain (total 8mm), mostly falling on Mon morning. Warm (max 31°C on Sun afternoon, min 29°C on Fri night). Mainly strong winds.

Days 5-7 Weather Summary

Heavy rain (total 32mm), heaviest during Mon night. Warm (max 30°C on Mon night, min 28°C on Tue night). Mainly strong winds.

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
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
0
1
!
!
!
0
0
0
0
1
1
1
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.2
WSW
6
2.3
WSW
7
2.5
WSW
7
3
SW
9
3
SW
9
3
SW
10
3.5
SW
10
3.5
SW
10
3.5
SW
9
3.5
SW
9
2.5
SW
10
2.5
SW
10
2.5
SW
10
2.4
SW
9
2.2
SW
10
2.2
SW
9
2.3
SW
9
2.5
SW
9
2.5
SW
9
Wave Graph
Metric surfscale
Energy kJ
351
520
603
1297
1336
1742
1952
2498
1921
1836
1375
1115
1161
1015
876
840
828
987
1010
Wind (km/h)
45
WNW
45
W
50
WNW
45
W
45
W
45
W
40
W
45
W
40
W
45
WSW
35
WSW
35
WSW
35
WSW
35
W
30
W
35
W
35
W
35
W
35
WSW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
High Tide
1:43AM1.07m
5:31PM0.49m
2:58AM1.15m
6:13PM0.51m
4:05AM1.24m
6:39PM0.52m
5:05AM1.31m
7:05PM0.54m
5:59AM1.35m
7:32PM0.57m
6:48AM1.35m
7:59PM0.62m
Low Tide
10:14AM0.20m
6:01PM0.49m
11:21AM0.09m
8:02PM0.49m
12:12PM0.02m
9:36PM0.46m
12:56PM-0.02m
10:47PM0.40m
1:35PM-0.01m
11:46PM0.34m
2:10PM0.03m
00:41AM0.30m
clear
clear
part cloud
part cloud
part cloud
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:31
5:31
5:31
5:33
5:33
5:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:32
6:32
6:31
6:30
6:30
6:30
6:29
 mm
1
3
3
1
4
4
2
8
4
2
4
2
2
7
Temp °C
29
30
30
30
30
31
30
30
30
30
30
29
29
29
29
29
29
29
29
Feels °C
27
28
27
28
27
28
28
29
29
27
30
29
30
29
29
30
29
29
30
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Nanwan Beach (South Bay):

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nanwan Beach (South Bay) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest