Isthmia Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Isthmia, Peloponnese, Greece. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's explore the details to provide you with a complete overview.

Isthmia typically sees modest rainfall throughout the year, with an average annual precipitation of 403 mm (16 in). The city experiences a distinct dry season during certain months, as illustrated in the graph below.

Monthly Precipitation Levels

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

The climate in Isthmia shows significant variation throughout the year. Expect 62 mm (2.4 in) of precipitation during the wettest month December, distributed over 11 rainy days.

In contrast, August offers drier and sunnier days, with around 4 mm (0.2 in) of rainfall over 2 rainy days.

December, the wettest month, has a maximum daytime temperature of 14°C (57°F). The city receives 127 hours of sunshine in this period. During the driest month August you can expect a temperature of 32°C (90°F). For more detailed insights into the city's temperatures, visit our Isthmia Temperature page.

Isthmia's average annual precipitation is 403 mm (16 in). Let's compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 644 mm (25 in), evenly distributed across the year with no extreme wet or dry seasons.

In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.

In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.

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 Isthmia's weather, including sunshine hours, humidity levels, and temperature data, visit our Isthmia Climate page.