Comporta Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Comporta, Alentejo, Portugal. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's explore the details to provide you with a complete overview.
On average, Comporta receives a reasonable amount of rainfall, with an annual precipitation of 598 mm (24 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))
The climate in Comporta shows significant variation throughout the year. Expect 88 mm (3.5 in) of precipitation during the wettest month December, distributed over 13 rainy days.
In contrast, July offers drier and sunnier days, with around 2.9 mm (0.1 in) of rainfall over a single rainy day.
December, the wettest month, has a maximum daytime temperature of 17°C (63°F). The city receives 141 hours of sunshine in this period. During the driest month July you can expect a temperature of 27°C (81°F). For more detailed insights into the city's temperatures, visit our Comporta Temperature page.
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
Comporta vs World: Rainfall Compared
Comporta's average annual precipitation is 598 mm (24 in). Let's compare this to some popular worldwide tourist destinations:
The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
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.
Climate change is affecting precipitation patterns worldwide, including Comporta:
- 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 Comporta's weather, including sunshine hours, humidity levels, and temperature data, visit our Comporta Climate page.
