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Surf Forecasts:

Nanwan Beach (South Bay) surfForecast / South / Taiwan

information circle12 Day Weather and Surf, issued 7 am Saturday 31 Jan 2026 CST
Forecast update in hr  min  s Forecast update imminent
Nanwan Beach (South Bay) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nanwan Beach (South Bay) sea temperature is
25.0° C
 (Which is 1.1°C warmer than normal for this time of year)

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

The surf forecast for Nanwan Beach (South Bay) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jan 31) at 2PM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.5m 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 12 days are 1.9m 8s and forecast to arrive on Wednesday (Feb 04) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 9s period and expected on Saturday (Feb 07) at 2PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Sat 31st Jan)4ft (1.2m) 8s
Best Surf 5PM (Wed 4th Feb)5ft (1.5m) 8s
Most Powerful 2AM (Wed 4th Feb)6ft (1.9m) 8s

Table - best surf conditions forecast for Nanwan Beach (South Bay) over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 6mm), mostly falling on Sat night. Warm (max 23°C on Sat morning, min 18°C on Sun night). Winds increasing (calm on Sat afternoon, strong winds from the NE by Mon night).

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Thu afternoon, min 18°C on Tue morning). Winds decreasing (near gales from the NE on Tue morning, light winds from the NE by Wed afternoon).

Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
1
0
0
0
0
0
0
0
0
0
0
1
2
0
0
0
0
0
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.3
ESE
1.2
E
3
NE
3
NE
3
ENE
2.5
ENE
2.4
ENE
2.5
ENE
3.5
ENE
3
ENE
2.4
ENE
1.9
E
1.7
E
1.5
E
1.3
ESE
1.3
ESE
1.2
ESE
1.1
E
1.1
ESE
1
ESE
1
ESE
Period(s) (?)88888777888888888810109
Wave
Graph
(?)Metric surfscale
Energy kJ (?)223190000000000470392302240240207173255205185
Wind
(km/h)
10
SE
10
NNE
45
NE
40
NE
40
NE
30
NE
30
NE
40
NE
50
NE
45
NE
40
NE
30
NE
25
NE
15
NE
20
ENE
25
E
25
E
20
ENE
20
E
10
E
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscrosscrosscrosscross-
on		off
High Tide
/ height (m)
5:34PM
1.33
7:32AM
0.53
6:24PM
1.36
7:57AM
0.56
7:10PM
1.35
8:23AM
0.60
7:52PM
1.28
8:50AM
0.65
8:31PM
1.18
9:18AM
0.71
9:08PM
1.04
9:47AM
0.77
9:42PM
0.89
Low Tide
/ height (m)
10:08AM
0.45
1:24AM
-0.03
11:11AM
0.40
2:02AM
-0.01
12:05PM
0.35
2:36AM
0.04
12:55PM
0.31
3:05AM
0.11
1:44PM
0.30
3:29AM
0.18
2:33PM
0.32
3:49AM
0.26
3:25PM
0.35
4:03AM
0.32
Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
Sunrise6:35--6:35--6:33--6:33--6:33--6:33--6:33--
Sunset-5:45--5:45--5:45--5:46--5:46--5:47--5:47-
rain showers
rain showers
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
Rain (mm)
222------------------
Temp. °C232321191919212119181919202221222322232323
Feels °C (?)24251612131317171291213172119192019202123
  • 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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View detailed surf forecast for Nanwan Beach (South Bay) at:
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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 12 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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