Idanha-a-Velha Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Idanha-a-Velha, Centro Region, Portugal. 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.
On average, Idanha-a-Velha receives a reasonable amount of rainfall, with an annual precipitation of 665 mm (26 in). Despite this overall moderate level, the city experiences distinct dry season during certain months throughout the year, as illustrated in the precipitation charts below.
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 104 mm (4.1 in) of precipitation, recorded across 12 rainy days.
In contrast, the driest month, July brings less rainfall, with 4.4 mm (0.2 in) over 5 rainy days.
October, the wettest month, has a maximum daytime temperature of 23°C (73°F). The city receives 166 hours of sunshine in this period. During the driest month July you can expect a temperature of 34°C (93°F). For more detailed insights into the city's temperatures, visit our Idanha-a-Velha Temperature page.
Daily Historical Precipitation
46-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Explore Idanha-a-Velha's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Idanha-a-Velha spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Portugal: City Comparison
The map below shows the annual precipitation across Portugal. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Idanha-a-Velha vs World: Rainfall Compared
Idanha-a-Velha's average annual precipitation is 665 mm (26 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.
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.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.
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 proximity of a location to a large body of water can significantly affect its rainfall patterns:
- Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
- Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
- 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 Idanha-a-Velha's weather, including sunshine hours, humidity levels, and temperature data, visit our Idanha-a-Velha Climate page.
