16.09
wed
wed
Day

81°F
NE 12 mph
Precip.
60%
60%
Night

81°F
NE 14 mph
Precip.
66%
66%
17.09
thu
thu
Day

81°F
NE 16 mph
Precip.
44%
44%
Night

81°F
NE 19 mph
Precip.
64%
64%
18.09
fri
fri
Day

81°F
NE 12 mph
Precip.
22%
22%
Night

82°F
NE 15 mph
Precip.
26%
26%
19.09
sat
sat
Day

82°F
E 15 mph
Precip.
26%
26%
Night

81°F
NE 17 mph
Precip.
60%
60%
20.09
sun
sun
Day

81°F
E 17 mph
Precip.
69%
69%
Night

82°F
NE 19 mph
Precip.
52%
52%
21.09
mon
mon
Day

81°F
NE 17 mph
Precip.
70%
70%
Night

81°F
NE 20 mph
Precip.
81%
81%
22.09
tue
tue
Day

81°F
NE 19 mph
Precip.
71%
71%
Night

82°F
NE 19 mph
Precip.
41%
41%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 84.5°F. The highest and lowest sea temperatures during the month were 85.3°F and 83.8°F.
Air temperature in Colombo, °F
Precipitation total in Colombo, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Colombo
Colombo on a weather map
Places in Sri Lanka:
Name
°F
24 Hours Forecast
Colombo
Local time: 04:23
September 16, wednesday
0600

81°F
NE
11 mph
11 mph
0900

82°F
NE
12 mph
12 mph
1200

81°F
NE
12 mph
12 mph
1500

81°F
NE
14 mph
14 mph
1800

82°F
NE
12 mph
12 mph
2100

82°F
NE
13 mph
13 mph
September 17, thursday
0000

81°F
NE
14 mph
14 mph
0300

81°F
N
12 mph
12 mph

























