Saint-Joseph Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Saint-Joseph, Reunion. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's explore the details to provide you with a complete overview.
Saint-Joseph has a relatively rainy climate with high precipitation levels, averaging 1493 mm (59 in) of rainfall annually. Despite the high annual total, it does experience a distinct rainy season during certain months. Examine our detailed charts below to understand these seasonal patterns.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Saint-Joseph shows significant variation throughout the year. Expect 253 mm (10 in) of precipitation during the wettest month February, distributed over 20 rainy days.
In contrast, September offers drier and sunnier days, with around 60 mm (2.4 in) of rainfall over 13 rainy days.
February, the wettest month, has a maximum daytime temperature of 27°C (81°F). During the driest month September you can expect a temperature of 22°C (72°F). For more detailed insights into the city's temperatures, visit our Saint-Joseph Temperature page.
Annual Rainfall in Reunion: City Comparison
The map below shows the annual precipitation across Reunion. You can also select the different months in case you are interested in a specific month.
heavy rainfall
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moderate
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Saint-Joseph vs World: Rainfall Compared
Saint-Joseph's average annual precipitation is 1493 mm (59 in). Let's compare this to some popular worldwide tourist destinations:
Chicago, USA, sees an annual precipitation of 1062 mm (42 in), with rain and snow contributing to its humid climate.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.
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.
Climate change is affecting precipitation patterns worldwide, including Saint-Joseph:
- 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.
- 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 Saint-Joseph's weather, including sunshine hours, humidity levels, and temperature data, visit our Saint-Joseph Climate page.
