Hamilton Island Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Hamilton Island. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s explore all the details to give you a full picture.

Hamilton Island has a relatively rainy climate with high precipitation levels, averaging 1245 mm of rainfall annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

Significant seasonal changes in precipitation occur throughout the year. During the wet season, February receives substantial rainfall, averaging 267 mm of precipitation, recorded across 13 rainy days.

In contrast, the drier season, September brings less rainfall, with 20 mm over 4 rainy days.

February, the wettest month, has a maximum daytime temperature of 29°C. The city receives 203 hours of sunshine in this period. During the driest month September you can expect a temperature of 24°C. For more detailed insights into the city’s temperatures, visit our Hamilton Island Temperature page.

Annual Precipitation in Australia

The map below shows the annual precipitation across Australia. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Hamilton Island’s average annual precipitation is 1245 mm. Let’s compare this to some popular worldwide tourist destinations:

The city of Rome, Italy, has an average annual precipitation of 832 mm, spread fairly evenly throughout the year.

In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.

In Brisbane, Australia, the annual precipitation is 979 mm, making it wetter than Sydney.

Singapore, situated near the equator, gets 2581 mm of rainfall annually, with no distinct dry season and consistent monthly precipitation.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Interesting weather facts

• "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
• The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm wide and 20 cm thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
• The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters fell during the winter of 1972.

For more detailed information about Hamilton Island’s weather, including sunshine hours, humidity levels, and temperature data, visit our Hamilton Island Climate page.