Nanwan Beach (South Bay) Surf Break

Lat Long: 21.96° N 120.76° E

Nanwan Beach (South Bay) Surf Forecast and Surf Report

Issued: 1 am 26 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nanwan Beach (South Bay) sea temperature is
30.0° C
1.0° 

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 25 Jul 2026:

  • Best quality surf: Thursday 30 Jul, 2PM (local time) - 3.5ft (1.0m), 8s period, SW swell with glassy winds.
  • Most powerful swell: Sunday 26 Jul, 5AM (local time) - 5.5ft (1.7m), 10s period, SW swell with 524 kJ wave energy.
  • Next surfable swell (1★+): Thursday 30 Jul, 2PM (local time) - 3.5ft (1.0m), 8s 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 Thursday (Jul 30) at 2PM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.7m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Nanwan Beach (South Bay) in the next 16 days are 1.7m 10s and forecast to arrive on Sunday (Jul 26) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 10s period and expected on Sunday (Jul 26) at 8AM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Thu 30th Jul)3.5ft (1.0m) 8s
Best Surf 2PM (Thu 30th Jul)3.5ft (1.0m) 8s
Most Powerful 5AM (Sun 26th Jul)5.5ft (1.7m) 10s

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


The Lowdown

G'day, Rusty here, giving you the straight-up surf outlook for Nanwan Beach (South Bay). Look, I'm not gonna sugarcoat it – this stretch of the next 16 days is looking pretty grim for a proper paddle. The wind is just not playing ball, and we've got a lot of chop and mess to deal with.

We kick off on Sunday, July 26th, but honestly, you wouldn't want to be out there. The swell is hitting 5 ft from the WSW, but with a cross-shore ENE breeze at 12 mph, it's just poor surf conditions. The combined wave energy is moderate (500), but that's all for nothing with the wind as it is. It stays this way right through the week and into the end of the month. The water temp is about average for the time of year, nothing weird there.

Finally, on Friday, July 31st, we get a little window. The morning brings a glassy moment from the SSE with a slight air, and the swell drops to 3 ft from the SW. The energy is weak (131), but at least it's clean. The afternoon gets even better with a light offshore breeze from the NNW, giving us clean 3 ft waves. Best bet for a surf? That Friday afternoon. It's small, but it'll be the cleanest you'll see. Saturday, August 1st morning is also glassy with 3 ft waves, but the energy is very weak (93). It's an option if you're desperate.

Then we go right back into the doldrums. Sunday, August 2nd brings a fresh to near-gale cross-shore wind, and the rest of the first week of August is a write-off with strong winds and messy, lumpy, or blown-out conditions. The swell picks up a bit, but it's all junk.

There is a more interesting pulse around Wednesday, August 5th. Swell jumps to 5 ft from the E with a very long period of 17 seconds – that's proper groundswell energy (1547). The morning has a clean cross-off breeze from the NE, but it's a fresh breeze at 19 mph. That's a lot of wind for a 5 ft wave. The afternoon on the 5th gets lumpy again. For a beach and reef setup like Nanwan, a long period E swell like that can be a bit tricky as it might break straight, but with the wind in the morning, there's a chance for a few lines if you're an expert. It's a long shot, though.

The last few days of the outlook into the second week of August are just a mess of strong onshore or cross-onshore winds and big, blown-out swell. We're talking near gale conditions and 7 ft waves. That's expert-only territory, and even then, it's a struggle. With the wind and poor quality, the setup looks more interesting for kite surfing than paddle surfing.

Plain and simple – there's no standout session here. The best of a bad bunch is the small, clean window on Friday, July 31st and Saturday, August 1st. For the rest, it's a waiting game. Forecasts can change, but right now, it's a tough run.

Rusty.

Short Range Forecast

Heavy rain (total 31mm), heaviest during Sun morning. Warm (max 29°C on Tue afternoon, min 26°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Fri morning. Warm (max 29°C on Wed morning, min 28°C on Wed morning). Wind will be generally light.

Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
WSW
9
1.3
WSW
9
0.9
WSW
9
1.6
SSW
8
1.4
SSW
8
1.2
SSW
7
0.9
SSW
7
1.1
SW
7
1
SW
8
1
SW
8
1
SW
8
1
SW
8
1.1
SW
9
1
SW
8
0.9
SW
8
0.9
SW
8
0.9
SW
9
0.9
SW
8
0.8
SW
8
0.7
SW
8
0.7
SW
8
Wave Graph
Metric surfscale
Energy kJ
339
233
132
318
245
157
96
122
125
125
132
135
193
135
115
118
126
100
97
64
63
Wind (km/h)
15
ENE
20
ENE
15
E
25
ESE
20
ENE
20
E
25
E
25
E
15
ENE
20
E
10
ENE
10
E
10
E
5
N
10
ENE
10
E
5
W
5
ESE
15
ESE
10
SE
10
E
Wind State
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
glassy
cross
cross-on
glassy
cross-on
cross-on
on
cross
High Tide
6:57PM0.52m
4:58AM1.12m
7:11PM0.53m
5:40AM1.17m
7:28PM0.54m
6:19AM1.20m
7:48PM0.55m
6:56AM1.22m
8:10PM0.58m
7:31AM1.20m
8:34PM0.61m
8:05AM1.16m
9:01PM0.66m
Low Tide
12:24PM0.18m
9:09PM0.50m
12:56PM0.14m
10:13PM0.47m
1:27PM0.12m
11:04PM0.43m
1:56PM0.12m
11:49PM0.40m
2:23PM0.12m
00:31AM0.37m
2:49PM0.14m
1:14AM0.35m
3:12PM0.17m
1:59AM0.35m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
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cloud
cloud
cloud
cloud
thunderstorm
thunderstorm
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thunderstorm
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:26
5:26
5:28
5:28
5:28
5:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:38
6:38
6:38
6:37
6:37
6:37
6:37
 mm
12
3
7
3
3
2
1
2
1
4
1
Temp °C
27
28
27
27
27
27
28
29
28
29
29
28
29
29
28
28
28
28
29
29
28
Feels °C
29
30
28
28
29
28
29
29
30
30
31
33
33
34
33
32
32
34
32
32
32
  • Map Icons:
  • Break
  • 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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