World Resorts Australia Cairns Weather

Cairns Sea Temperature in September

Average sea water temperature in September:
+76.2°F
Minimum sea water temperature in September: 80.4°F
Maximum sea water temperature in September: 73.2°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 76.9°F. The highest and lowest sea temperatures during the month were 78.3°F and 75.6°F.

Monthly sea water temperature in Cairns, °F

Which Australia resorts have warmest sea in September?

Place name September 2025 September 2024
Darwin 82.9°F 84.3°F
Cairns 76.9°F 76.6°F
Fraser 70.5°F 72.2°F
Gold Coast 69.2°F 69.8°F
Brisbane 68.7°F 71.0°F
Sydney 64.4°F 63.3°F
Perth 62.4°F 63.7°F
Adelaide 57.5°F 58.3°F
Melbourne 54.2°F 54.4°F
Tasmania 53.5°F 53.8°F

Best time for vacation in Cairns

Sunniest months:
October 19 days
August 18 days
September 16 days
Warmest months:
December 86.7 °F
January 86.6 °F
February 86.3 °F
Warmest sea temp:
February 84.8 °F
January 84.6 °F
March 83.9 °F
Coldest months:
July 75.8 °F
June 76.1 °F
August 76.6 °F
Rainiest months:
January 10 days
March 8 days
February 8 days
Windiest months:
May 9.6 mph
July 9.2 mph
June 9.1 mph

Cairns on a weather map

Current weather
10:11
Cairns
+73°F
NW 4 mph
Feels like: +77°F
Precip.: 4%
Places in Australia:
Name
°F
Adelaide
+54°F
Brisbane
+63°F
Gold Coast
+63°F
Darwin
+77°F
Canberra
+46°F
Cairns
+73°F
Melbourne
+48°F
Perth
+59°F
Sydney
+63°F
Tasmania
+50°F
Fraser
+68°F
24 Hours Forecast
Cairns
Local time: 10:11
August 26, wednesday
1200
81°F
W
7 mph
1500
81°F
W
7 mph
1800
70°F
W
3 mph
2100
63°F
N
3 mph
August 27, thursday
0000
63°F
N
3 mph
0300
61°F
N
4 mph
0600
61°F
N
4 mph
0900
73°F
NW
6 mph
Units of measurement: °C / °F