Saint-Jean-Trolimon Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Saint-Jean-Trolimon, Brittany, France. This average is based on long-term data collected between 1990 and 2020. Let's now guide you through the details for a complete overview.

Generally, Saint-Jean-Trolimon receives mid-range precipitation levels, with 976 mm (38 in) annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

The seasons in Saint-Jean-Trolimon, bring significant changes in precipitation. The wettest month, December, receives high rainfall, with an average of 126 mm (5 in) of precipitation. This rainfall is distributed across 21 rainy days.

December, the wettest month, has a maximum daytime temperature of 12°C (54°F). The city receives 63 hours of sunshine in this period. During the driest month July you can expect a temperature of 20°C (68°F). For more detailed insights into the city's temperatures, visit our Saint-Jean-Trolimon Temperature page.

Saint-Jean-Trolimon's average annual precipitation is 976 mm (38 in). Let's compare this to some popular worldwide tourist destinations:

In Toronto, Canada, annual precipitation averages 964 mm (38 in), with snowy winters and rainy summers.

Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.

In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.

Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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.

• "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 Saint-Jean-Trolimon's weather, including sunshine hours, humidity levels, and temperature data, visit our Saint-Jean-Trolimon Climate page.