Weather in Similan: May
| Average day temperature: | 88.1°F | |
| Average night temperature: | 80.6°F | |
| Sea water temperature: | 86.4°F | |
| Number of sunny days: | 8 days | |
| Day length: | 12.4 - 12.6 hours | |
| Number of rainy days: | 13 days | |
| Precipitation totals: | 7.3 in. | |
| more information | ||
14 days
forecast
forecast
| Similan |
sea water
temperature
temperature
| Similan |
Air temperature in May, °F
Show year:
2025
2024
2023
The highest day temperature during May of 2025 was 93°F. At the same time the lowest night temperature was 72°F. Daily and nightly averages during May were 85.0°F and 74.4°F.
Sea water temperature in Similan in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 86.3°F. The highest and lowest sea temperatures during the month were 87.4°F and 85.3°F.
Sunny, partly cloudy and cloudy days
Mostly all days in May are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in May, in.
Precipitation total value in Similan in May is 7.2 in.
Wind speed in May, mph
The average wind speed value in May is 6.1 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 5.2.
Best time for vacation in Similan
Similan on a weather map
Places in Thailand:
Name
°F
24 Hours Forecast
Similan
Local time: 15:27
December 05, friday
1800

77°F
NW
2 mph
2 mph
2100

77°F
NW
5 mph
5 mph
December 06, saturday
0000

77°F
W
4 mph
4 mph
0300

75°F
W
6 mph
6 mph
0600

75°F
W
6 mph
6 mph
0900

79°F
W
5 mph
5 mph
1200

86°F
S
2 mph
2 mph
1500

82°F
S
3 mph
3 mph



























