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

This page shows the average amount of rainfall per month in Gustavia. 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.

On average, Gustavia receives a reasonable amount of rainfall, with an annual precipitation of 904 mm.

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, October receives substantial rainfall, averaging 138 mm of precipitation, recorded across 20 rainy days.

In contrast, the drier season, March brings less rainfall, with 30 mm over 13 rainy days.

October, the city’s wettest month, has a maximum daytime temperature of 29°C and receives 251 hours of sunshine. During the driest month March you can expect a temperature of 27°C. For more detailed insights into the city’s temperatures, visit our Gustavia Temperature page.

Annual Precipitation in Saint Barthélemy

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

Amsterdam Precipitation Compared World Wide

Gustavia’s average annual precipitation is 904 mm. Let’s compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 644 mm, evenly distributed across the year with no extreme wet or dry seasons.

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

Melbourne, Australia, has 690 mm of rainfall annually, spread fairly evenly throughout the year.

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.

Global Warming and Precipitation

Climate change is affecting precipitation patterns worldwide, including Gustavia:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

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