Nai Harn Beach Surf Break

Lat Long: 7.78° N 98.30° E

Nai Harn Beach 48 hour detailed Surf Forecast

Issued: 6 am 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nai Harn Beach sea temperature is
30.2° C
1.0° 

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 (31 Jul):

  • Morning surf: Morning surf (31 Jul, local time) - 0.5ft (0.2m), 19s period with WSW swell.
  • Afternoon surf: Afternoon surf (31 Jul, local time) - 0.5ft (0.2m), 18s period with WSW swell.
  • Evening surf: Evening surf (31 Jul, local time) - 0.5ft (0.2m), 18s period with WSW swell.

The current surf forecast for Nai Harn Beach at 2PM is: 0.2m 18s primary swell from a West-southwest direction (forecast issued at 06:00am July 31). An open ocean swell of 0.8m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (+07) & DateWave HeightWave Period
Morning (31 Jul)0.5ft (0.2m)19s
Afternoon (31 Jul)0.5ft (0.2m)18s
Evening (31 Jul)0.5ft (0.2m)18s

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


Short Range Forecast

Some drizzle, heaviest during Sun night. Warm (max 29°C on Sat afternoon, min 28°C on Fri morning). Wind will be generally light.

Friday
31
Saturday
1
Sunday
2
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
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
1
1
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
W
20
0.2
WSW
19
0.2
WSW
18
0.2
WSW
18
0.2
WSW
18
0.2
WSW
18
0.2
WSW
18
0.2
WSW
18
0.2
WSW
18
0.2
WSW
17
0.2
WSW
16
0.2
WSW
16
0.2
WSW
16
0.3
WSW
16
0.3
WSW
16
0.3
WSW
16
0.2
WSW
16
0.2
WSW
16
0.2
WSW
16
0.5
W
8
0.2
WSW
15
0.2
WSW
16
0.2
WSW
16
Wave Graph
Metric surfscale
Energy kJ
7
36
33
31
31
31
31
30
30
28
26
25
25
51
51
51
25
25
24
28
23
24
24
Wind (km/h)
15
WNW
10
W
5
SW
10
S
5
SW
5
WNW
5
NNW
5
WNW
5
WNW
5
NNW
5
WNW
10
WNW
10
W
5
W
5
WSW
5
W
5
W
5
NW
5
S
5
SSW
10
SW
5
SW
10
WSW
Wind State
cross
cross-on
on
cross-on
glassy
glassy
glassy
cross
glassy
glassy
cross
cross-on
cross-on
cross-on
glassy
glassy
glassy
glassy
glassy
on
on
on
cross-on
High Tide
11:33AM1.95m
11:58PM1.69m
12:02PM1.95m
00:29AM1.73m
12:32PM1.91m
Low Tide
5:19AM0.25m
5:55PM0.09m
5:51AM0.23m
6:23PM0.07m
6:24AM0.23m
6:52PM0.07m
thunderstorm
thunderstorm
cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:45
6:45
 mm
4
2
Temp °C
27
27
28
28
28
28
28
28
28
28
28
28
29
29
29
28
28
28
28
29
29
29
29
Feels °C
29
29
32
31
32
32
32
32
32
33
32
31
32
33
33
32
32
32
32
33
32
33
33
  • 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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