Port-Louis Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Port-Louis, Grande-Terre, Guadeloupe. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Let's explore the details to provide you with a complete overview.
Port-Louis has a relatively rainy climate with high precipitation levels, averaging 1115 mm (44 in) of rainfall annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, October receives substantial rainfall, averaging 143 mm (5.6 in) of precipitation, recorded across 19 rainy days.
In contrast, the driest month, March brings less rainfall, with 45 mm (1.8 in) over 13 rainy days.
October, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 217 hours of sunshine in this period. During the driest month March you can expect a temperature of 27°C (81°F). For more detailed insights into the city's temperatures, visit our Port-Louis Temperature page.
Explore Port-Louis's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Port-Louis spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Guadeloupe: City Comparison
The map below shows the annual precipitation across Guadeloupe. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Port-Louis vs World: Rainfall Compared
Port-Louis's average annual precipitation is 1115 mm (44 in). Let's compare this to some popular worldwide tourist destinations:
In Barcelona, Spain, the average annual precipitation is 644 mm (25 in), evenly distributed across the year with no extreme wet or dry seasons.
In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.
In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.
Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.
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.
- 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 Port-Louis's weather, including sunshine hours, humidity levels, and temperature data, visit our Port-Louis Climate page.
