Nai Harn Beach Surf Break

Lat Long: 7.78° N 98.30° E

Nai Harn Beach 48 hour detailed Surf Forecast

Issued: 6 pm 22 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nai Harn Beach sea temperature is
29.4°C
0.4° 

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 (23 Aug):

  • Morning surf: Morning surf (23 Aug, local time) - 0.5ft (0.2m), 15s period with WSW swell.
  • Afternoon surf: Afternoon surf (23 Aug, local time) - 0.5ft (0.1m), 15s period with SW swell.
  • Evening surf: Evening surf (23 Aug, local time) - 1.5ft (0.5m), 8s period with W swell.

The current surf forecast for Nai Harn Beach at 1AM is: 0.2m 16s primary swell from a West-southwest direction (forecast issued at 06:00pm August 22). An open ocean swell of 0.9m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (+07) & DateWave HeightWave Period
Morning (23 Aug)0.5ft (0.2m)15s
Afternoon (23 Aug)0.5ft (0.1m)15s
Evening (23 Aug)1.5ft (0.5m)8s

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


Short Range Forecast

Heavy rain (total 30mm), heaviest during Mon afternoon. Warm (max 29°C on Sat afternoon, min 27°C on Mon morning). Winds increasing (calm on Sat night, fresh winds from the W by Tue morning).

Sat
22
Sunday
23
Monday
24
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
WSW
16
0.2
WSW
16
0.2
WSW
16
0.2
WSW
16
0.2
WSW
16
0.2
WSW
16
0.2
WSW
15
0.2
WSW
15
0.1
SW
15
0.1
W
15
0.5
W
8
0.1
W
15
0.1
W
15
0.1
W
15
0.1
W
19
0.1
W
19
0.1
W
15
0.1
W
18
0.1
W
18
Wave Graph
Metric surfscale
Energy kJ
25
25
24
24
24
24
23
22
9
4
33
4
4
4
7
7
4
6
6
Wind (km/h)
5
SSW
5
W
5
WNW
5
W
10
NW
10
WNW
10
WNW
10
W
15
WNW
15
WNW
15
WNW
20
WNW
25
W
20
WNW
20
WNW
25
W
25
W
30
W
30
WSW
Wind State
on
cross-on
glassy
cross-on
cross
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
High Tide
6:22PM1.00m
7:14AM1.32m
8:21PM1.11m
8:24AM1.46m
9:05PM1.26m
Low Tide
11:56PM0.83m
2:24PM0.71m
1:51AM0.75m
3:07PM0.55m
clear
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:38
6:38
6:37
 mm
1
1
1
3
3
3
4
4
4
Temp °C
29
29
29
28
28
28
28
28
28
28
28
28
28
28
28
27
27
27
27
Feels °C
33
34
34
32
32
32
32
31
31
30
30
30
29
29
28
27
27
26
26
  • 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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