World Resorts Thailand Similan Weather

Similan 7 Days Forecast

09.09
wed
Day
82°F
E 9 mph
Precip.
62%
Night
81°F
E 9 mph
Precip.
73%
10.09
thu
Day
82°F
E 7 mph
Precip.
65%
Night
79°F
E 7 mph
Precip.
74%
11.09
fri
Day
82°F
E 8 mph
Precip.
67%
Night
77°F
E 7 mph
Precip.
78%
12.09
sat
Day
75°F
E 5 mph
Precip.
76%
Night
77°F
E 8 mph
Precip.
74%
13.09
sun
Day
81°F
NE 9 mph
Precip.
70%
Night
77°F
E 8 mph
Precip.
71%
14.09
mon
Day
79°F
NE 12 mph
Precip.
52%
Night
79°F
E 14 mph
Precip.
73%
15.09
tue
Day
81°F
E 13 mph
Precip.
71%
Night
79°F
E 13 mph
Precip.
78%

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

Sunniest months:
March 20 days
February 19 days
January 16 days
Warmest months:
April 88.8 °F
March 88.6 °F
May 87.8 °F
Warmest sea temp:
May 86.4 °F
April 86.3 °F
March 85.2 °F
Coldest months:
September 84.9 °F
August 85.3 °F
July 85.4 °F
Rainiest months:
July 17 days
August 15 days
October 15 days
Windiest months:
July 9.1 mph
August 8.6 mph
June 8.4 mph

Similan on a weather map

Current weather
08:30
Similan
+82°F
E 8 mph
Feels like: +88°F
Precip.: 62%
Places in Thailand:
Name
°F
Bang Tao Beach
+81°F
Bangkok
+88°F
Khao Lak
+82°F
Karon Beach
+81°F
Kata Beach
+81°F
Samet
+82°F
Koh Chang
+81°F
Cape Panwa
+81°F
Nai Yang Beach
+81°F
Phangan
+82°F
Pattaya
+84°F
Phi Phi
+84°F
Phuket
+81°F
Samui
+82°F
Hua Hin
+84°F
all places
24 Hours Forecast
Similan
Local time: 08:30
September 09, wednesday
0900
82°F
E
8 mph
1200
82°F
E
9 mph
1500
82°F
E
7 mph
1800
81°F
E
4 mph
2100
79°F
E
5 mph
September 10, thursday
0000
81°F
E
9 mph
0300
79°F
E
10 mph
0600
79°F
E
11 mph
Units of measurement: °C / °F