Current sea water temperature:
+73.8°F
| Minimum sea water temperature in September: | 80.4°F |
| Maximum sea water temperature in September: | 72.1°F |
| Average sea water temperature in September: | 76.1°F |
| more information | |
14 days
forecast
forecast
| Cairns |
monthly
weather
weather
| Cairns |
Sea water temperature for the last 10 days:
| September 16 | 73.8°F | September 11 | 75.0°F |
| September 15 | 73.4°F | September 10 | 75.6°F |
| September 14 | 73.8°F | September 9 | 74.8°F |
| September 13 | 74.5°F | September 8 | 74.1°F |
| September 12 | 74.5°F | September 7 | 73.4°F |
Monthly sea water temperature, °F
When is the warmest sea in Cairns?
Based on the data about daily sea water temperature for the last three years the warmest sea in Cairns was noticed in February, January and March.
Monthly Sea Temperatures in Cairns, °F
Sea water temperature in February, °F
Show year:
2026
2025
2024
The average sea water temperature in February of 2026 was 86.0°F. The highest and lowest sea temperatures during the month were 86.9°F and 85.5°F.
Sea water temperature in January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 84.1°F. The highest and lowest sea temperatures during the month were 85.6°F and 83.1°F.
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 83.8°F. The highest and lowest sea temperatures during the month were 86.4°F and 80.4°F.
current
weather
weather
| Cairns |
weather in
September
September
| Cairns |
Best time for vacation in Cairns
Cairns on a weather map
Places in Australia:
Name
°F
24 Hours Forecast
Cairns
Local time: 04:43
September 17, thursday
0600
57°F
N
4 mph
4 mph
0900
73°F
NW
7 mph
7 mph
1200
77°F
W
9 mph
9 mph
1500
77°F
NW
9 mph
9 mph
1800
68°F
NW
6 mph
6 mph
2100
63°F
NW
4 mph
4 mph
September 18, friday
0000
64°F
NW
5 mph
5 mph
0300
64°F
NW
6 mph
6 mph
