Nai Harn Beach Surf Break

Lat Long: 7.78° N 98.30° E

Nai Harn Beach 48 hour detailed Surf Forecast

Issued: 12 pm 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nai Harn Beach sea temperature is
29.9° C
0.8° 

Nai Harn Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Nai Harn Beach today (12 Aug):

  • Morning surf: Morning surf (12 Aug, local time) - 2.5ft (0.7m), 7s period with W swell.
  • Afternoon surf: Afternoon surf (12 Aug, local time) - 0.5ft (0.1m), 18s period with W swell.
  • Evening surf: Evening surf (12 Aug, local time) - 0.5ft (0.2m), 18s period with WSW swell.

The current surf forecast for Nai Harn Beach at 5PM is: 0.1m 18s primary swell from a West direction and 0.1m 14s secondary swell from a West direction (forecast issued at 12:00pm August 12). An open ocean swell of 1.1m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (+07) & DateWave HeightWave Period
Morning (12 Aug)2.5ft (0.7m)7s
Afternoon (12 Aug)0.5ft (0.1m)18s
Evening (12 Aug)0.5ft (0.2m)18s

Table - waves today at Nai Harn Beach. (Swell directed towards the surf break)


Short Range Forecast

Moderate rain (total 14mm), heaviest on Thu night. Warm (max 29°C on Wed morning, min 28°C on Wed morning). Mainly fresh winds.

Wed
12
Thursday
13
Friday
14
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
W
7
0.7
W
7
0.1
W
18
0.2
WSW
18
0.2
WSW
18
0.1
W
18
0.1
W
18
0.1
W
18
0.1
W
17
0.2
W
8
0.2
W
8
0.2
W
8
0.2
W
8
0.1
W
16
1.1
W
6
1.2
W
6
1.3
W
6
1.5
W
6
1.6
W
7
1.7
W
7
1.8
W
7
Wave Graph
Metric surfscale
Energy kJ
51
51
6
31
31
6
6
6
6
5
5
5
5
5
78
99
132
187
233
286
339
Wind (km/h)
20
WNW
20
WNW
20
WNW
20
WNW
25
WNW
20
WNW
20
WNW
20
WNW
20
W
20
W
25
W
25
W
25
W
25
W
25
W
25
W
30
W
30
W
35
W
30
W
30
W
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
10:12AM2.01m
10:45PM1.72m
10:52AM2.08m
11:23PM1.81m
11:28AM2.08m
Low Tide
4:40PM0.02m
4:38AM0.17m
5:16PM-0.06m
5:17AM0.12m
5:50PM-0.07m
thunderstorm
thunderstorm
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
part cloud
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:43
6:43
 mm
1
1
1
1
2
2
2
2
1
1
Temp °C
28
29
29
29
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
Feels °C
30
31
30
31
29
30
30
29
30
29
29
29
29
29
29
28
28
28
27
27
27
  • 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 

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