Cairns
Australia
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Cairns, Australia

The best months for a swim in Cairns, Australia, are October and November, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.

January, like December, is a hot summer month in Cairns, Australia, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 31°C (87.8°F). The warmest months are January, February and December, with an average high-temperature of 31°C (87.8°F). Weather in January »

The last month of the summer, February, is another tropical month in Cairns, Australia, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 31°C (87.8°F). The warmest months are January, February and December, with an average high-temperature of 31°C (87.8°F). Weather in February »

The first month of the autumn, March, is still a hot month in Cairns, Australia, with average temperature ranging between min 22°C (71.6°F) and max 30°C (86°F). In March, the average high-temperature is practically the same as in February - a still hot 30°C (86°F). Weather in March »

April, the same as March, is another warm autumn month in Cairns, Australia, with average temperature fluctuating between 29°C (84.2°F) and 21°C (69.8°F). In Cairns, Australia, the average high-temperature in April is practically the same as in March - a warm 29°C (84.2°F). Weather in April »

May, the last month of the autumn, in Cairns, is also a moderately hot month, with temperature in the range of an average high of 27°C (80.6°F) and an average low of 19°C (66.2°F). In May, the average high-temperature is essentially the same as in April - a still moderately hot 27°C (80.6°F). Weather in May »

The first month of the winter, June, is still a warm month in Cairns, Australia, with average temperature varying between 17°C (62.6°F) and 25°C (77°F). June and July, with an average high-temperature of 25°C (77°F), are the coldest months. Weather in June »

July, the same as June, is another warm winter month in Cairns, Australia, with temperature in the range of an average low of 16°C (60.8°F) and an average high of 25°C (77°F). The coldest months are June and July, with an average high-temperature of 25°C (77°F). Weather in July »

August, the last month of the winter, in Cairns, is also a moderately hot month, with average temperature varying between 26°C (78.8°F) and 17°C (62.6°F). In Cairns, the average high-temperature in August is relatively the same as in July - a still warm 26°C (78.8°F). Weather in August »

September, the first month of the spring, in Cairns, is still a warm month, with average temperature varying between 27°C (80.6°F) and 18°C (64.4°F). In September, the average high-temperature is practically the same as in August - a still moderately hot 27°C (80.6°F). Weather in September »

October, like September, in Cairns, Australia, is a moderately hot spring month, with average temperature ranging between min 20°C (68°F) and max 29°C (84.2°F). The ideal sea water temperature of 26.3°C (79.3°F) and only 4 rainfall days, with 45mm (1.8") of accumulated rainfall, make October the best time for swimming and other water activities. Weather in October »

November, the last month of the spring, in Cairns, is a tropical month, with average temperature varying between 22°C (71.6°F) and 30°C (86°F). The ideal sea water temperature of 27.5°C (81.5°F) and only 5 rainfall days, with 101mm (4") of accumulated rainfall, make November the best time for swimming and other water activities. Weather in November »

December, the first month of the summer, in Cairns, is also a hot month, with average temperature ranging between max 31°C (87.8°F) and min 23°C (73.4°F). January, February and December, with an average high-temperature of 31°C (87.8°F), are the warmest months. Weather in December »

What are the warmest months in Cairns?

Warmest months in Cairns are January, February and December, with an average high-temperature of 31°C (87.8°F).

How much does it rain in Cairns?

In Cairns, Australia, during the entire year, the rain falls for 95 days and collects up to 2193mm (86.3") of precipitation.

When is the sea warmest in Cairns?

With an average sea temperature of 29.5°C (85.1°F), January is the month with the warmest seawater in Cairns, Australia.

What are the months with the highest UV index in Cairns?

Months with the highest UV index in Cairns, Australia, are January through March, October through December, with an average maximum UV index of 12.

What is the month with the least sunshine in Cairns?

February through May, with an average of 6h of sunshine, are months with the least sunshine.

What is the wettest month in Cairns?

March is the month with the most rainfall. Rain falls for 13 days and accumulates 442mm (17.4") of precipitation.

What is the coldest month in Cairns?

The coldest months are June and July, with an average high-temperature of 25°C (77°F).

What is the month with the shortest days in Cairns?

The month with the shortest days in Cairns, Australia, is June, with an average of 11.1h of daylight.

What are the months with the lowest UV index in Cairns?

June and July, with an average maximum UV index of 7, are months with the lowest UV index in Cairns.

When is the sea coldest in Cairns?

With an average sea temperature of 23.8°C (74.8°F), July is the month with the coldest seawater in Cairns.

What is the driest month in Cairns?

The month with the least rainfall is August when the rain falls for 4 days and typically collects 38mm (1.5") of precipitation.

What month has the most sunshine in Cairns?

The month with the most sunshine in Cairns is October, with an average of 9h of sunshine.

When are the longest days in Cairns?

The month with the longest days in Cairns, Australia, is December, with an average of 13.1h of daylight.
Average temperature - Cairns, Australia
Average rainfall - Cairns, Australia
Average rainfall days - Cairns, Australia
Average sea temperature - Cairns, Australia

The best month for swimming (with the highest average sea temperature) is January (29.5°C).
The coldest month (with the lowest average sea temperature) is July (23.8°C).

Average daylight / Average sunshine - Cairns, Australia
Average UV index - Cairns, Australia

Months with the highest UV index are January, February, March, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 7).