Oranjestad Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows both the average monthly rainfall and the number of rainy days in Oranjestad, Aruba. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's now guide you through the details for a complete overview.

Generally, Oranjestad receives mid-range precipitation levels, with 649 mm annually.

Monthly Precipitation Levels

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

Oranjestad can be quite wet during November, receiving approximately 145 mm of precipitation over 10 rainy days.

In contrast March, experiences much drier conditions, with 19 mm of rainfall, spread across 4 rainy days.

November, the wettest month, has a maximum daytime temperature of 29°C. During the driest month March you can expect a temperature of 28°C. For more detailed insights into the city’s temperatures, visit our Oranjestad Temperature page.

Annual Precipitation in Aruba

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

Amsterdam Precipitation Compared World Wide

Oranjestad’s average annual precipitation is 649 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.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm of annual rainfall, mostly in the summer.

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

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.

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

• The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
• Approximately 70% of lightning bolts strike land rather than oceans.
• A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

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