Toamasina Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Toamasina, Madagascar. This average is based on long-term data collected between 1990 and 2020. Let's explore the details to provide you with a complete overview.
Toamasina has a relatively rainy climate with high precipitation levels, averaging 2402 mm (95 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 seasons in Toamasina, bring significant changes in precipitation. The wettest month, February, receives heavy rainfall, with an average of 374 mm (15 in) of precipitation. This rainfall is distributed across 19 rainy days.
In contrast, the driest month, November, experiences much less rainfall, totaling 92 mm (3.6 in) over 17 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.February, the wettest month, has a maximum daytime temperature of 30°C (86°F). The city receives 200 hours of sunshine in this period. During the driest month November you can expect a temperature of 28°C (82°F). For more detailed insights into the city's temperatures, visit our Toamasina Temperature page.
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Toamasina's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Toamasina spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Madagascar: City Comparison
The map below shows the annual precipitation across Madagascar. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Toamasina vs World: Rainfall Compared
Toamasina's average annual precipitation is 2402 mm (95 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.
Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.
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.
Precipitation has a very strong role in determining the local climate and ecosystem:
- 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.
- "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 (15 inches) wide and 20 cm (7.9 inches) 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 (103 feet) fell during the winter of 1972.
For more detailed information about Toamasina's weather, including sunshine hours, humidity levels, and temperature data, visit our Toamasina Climate page.
