Portes Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Portes, Upper Normandy, France. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let's explore all the details to give you a full picture.
Generally, Portes receives mid-range precipitation levels, with 754 mm (30 in) annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The wettest period in Portes occurs in December, which receives around 73 mm (2.9 in) of precipitation. During the driest month, September, Portes experiences moderate rainfall, totaling approximately 53 mm (2.1 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate.
December, the wettest month, has a maximum daytime temperature of 9°C (48°F). The city receives 51 hours of sunshine in this period. During the driest month September you can expect a temperature of 21°C (70°F). For more detailed insights into the city's temperatures, visit our Portes Temperature page.
Annual Rainfall in France: City Comparison
The map below shows the annual precipitation across France. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Portes vs World: Rainfall Compared
Portes's average annual precipitation is 754 mm (30 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.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
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.
Climate change is affecting precipitation patterns worldwide, including Portes:
- 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.
- Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
- In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
- Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.
For more detailed information about Portes's weather, including sunshine hours, humidity levels, and temperature data, visit our Portes Climate page.
