Guayaquil Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows both the average monthly rainfall and the number of rainy days in Guayaquil, Guayas, Ecuador. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let’s explore all the details to give you a full picture.

Guayaquil experiences significant rainfall throughout the year, averaging 2643 mm of precipitation annually.

Monthly Precipitation Levels

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

Guayaquil can be quite wet during February, receiving approximately 444 mm of precipitation over 18 rainy days.

In contrast November, experiences much drier conditions, with 71 mm of rainfall, spread across 2 rainy days.

February, the wettest month, has a maximum daytime temperature of 30°C. The city receives 112 hours of sunshine in this period. During the driest month November you can expect a temperature of 30°C. For more detailed insights into the city’s temperatures, visit our Guayaquil Temperature page.

Annual Precipitation in Ecuador

The map below shows the annual precipitation across Ecuador. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Guayaquil’s average annual precipitation is 2643 mm. Let’s compare this to some popular worldwide tourist destinations:

The city of Rome, Italy, has an average annual precipitation of 832 mm, spread fairly evenly throughout the year.

Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.

Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.

Ho Chi Minh City, Vietnam, receives 1955 mm of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

How is Precipitation Measured?

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.

Sea vs. Land Precipitation

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.

For more detailed information about Guayaquil’s weather, including sunshine hours, humidity levels, and temperature data, visit our Guayaquil Climate page.