Siero Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Siero, Asturias, Spain. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's now guide you through the details for a complete overview.
Siero has a notably wet climate with abundant precipitation, recording 1345 mm (53 in) of rainfall per year.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Siero experiences moderate seasonal variation in rainfall, with monthly averages ranging from 144 mm (5.7 in) in November, the wettest month, and 83 mm (3.3 in) in July, the driest month.
November, the wettest month, has a maximum daytime temperature of 15°C (59°F). The city receives 110 hours of sunshine in this period. During the driest month July you can expect a temperature of 22°C (72°F). For more detailed insights into the city's temperatures, visit our Siero Temperature page.
Annual Rainfall in Spain: City Comparison
The map below shows the annual precipitation across Spain. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Siero vs World: Rainfall Compared
Siero's average annual precipitation is 1345 mm (53 in). Let's compare this to some popular worldwide tourist destinations:
Athens, Greece, receives an average annual precipitation of 400 mm (16 in), making it one of the drier Mediterranean climates with rainfall mostly in winter.
In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
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.
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.
- 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 Siero's weather, including sunshine hours, humidity levels, and temperature data, visit our Siero Climate page.
