18.08
tue
tue
Day
82°F
SE 10 mph
Precip.
18%
18%
Night
81°F
SE 7 mph
Precip.
46%
46%
19.08
wed
wed
Day
84°F
E 14 mph
Precip.
17%
17%
Night
81°F
E 12 mph
Precip.
27%
27%
20.08
thu
thu
Day
82°F
E 15 mph
Precip.
53%
53%
Night
81°F
E 13 mph
Precip.
50%
50%
21.08
fri
fri
Day
82°F
NE 15 mph
Precip.
67%
67%
Night
79°F
NE 10 mph
Precip.
71%
71%
22.08
sat
sat
Day
82°F
NE 14 mph
Precip.
56%
56%
Night
81°F
NE 10 mph
Precip.
37%
37%
23.08
sun
sun
Day
82°F
NE 12 mph
Precip.
36%
36%
Night
81°F
E 12 mph
Precip.
47%
47%
24.08
mon
mon
Day
82°F
E 14 mph
Precip.
57%
57%
Night
81°F
NE 12 mph
Precip.
62%
62%
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 84.7°F. The highest and lowest sea temperatures during the month were 85.8°F and 83.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 83.3°F. The highest and lowest sea temperatures during the month were 84.4°F and 81.7°F.
Air temperature in Similan, °F
Precipitation total in Similan, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Similan
Similan on a weather map
Places in Thailand:
Name
°F
24 Hours Forecast
Similan
Local time: 04:41
August 18, tuesday
0600
79°F
E
5 mph
5 mph
0900
81°F
E
4 mph
4 mph
1200
82°F
SE
10 mph
10 mph
1500
84°F
SE
11 mph
11 mph
1800
82°F
E
8 mph
8 mph
2100
81°F
E
6 mph
6 mph
August 19, wednesday
0000
81°F
SE
7 mph
7 mph
0300
81°F
E
11 mph
11 mph
