San Ramón Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in San Ramón, Junín, Peru. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let's break down all the details for a clearer picture.

San Ramón experiences significant rainfall throughout the year, averaging 2971 mm (117 in) of precipitation annually. However, this abundant rainfall is not evenly distributed, with a distinct rainy season during certain months. You can clearly see this in our monthly precipitation graphs 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, February receives substantial rainfall, averaging 484 mm (19 in) of precipitation, recorded across 14 rainy days.

In contrast, the driest month, July brings less rainfall, with 84 mm (3.3 in) over 4 rainy days.

February, the wettest month, has a maximum daytime temperature of 20°C (68°F). During the driest month July you can expect a temperature of 19°C (66°F). For more detailed insights into the city's temperatures, visit our San Ramón Temperature page.

Annual Rainfall in Peru: City Comparison

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

San Ramón vs World: Rainfall Compared

San Ramón's average annual precipitation is 2971 mm (117 in). Let's compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm (49 in) of annual precipitation, including significant snowfall during the winter.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.

Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.

Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.

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.

Rainy Seasons: Many parts of the world have well-defined wet seasons where precipitation is distinctly higher. These are normally accompanied by lush vegetation and temperature patterns.

Dry Seasons: In areas where the climate is either desert or Mediterranean, the amount of precipitation is drastically reduced, leading to a shortage of water and arid conditions.

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