Ocosuyo Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Ocosuyo, Puno, Peru. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let's explore all the details to give you a full picture.
Ocosuyo experiences significant rainfall throughout the year, averaging 1441 mm (57 in) of precipitation annually. However, this abundant rainfall is not evenly distributed, with a distinct dry and 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, January receives substantial rainfall, averaging 269 mm (11 in) of precipitation, recorded across 17 rainy days.
In contrast, the driest month, July brings less rainfall, with 14 mm (0.6 in) over 2 rainy days.January, the wettest month, has a maximum daytime temperature of 14°C (57°F). During the driest month July you can expect a temperature of 13°C (55°F). For more detailed insights into the city's temperatures, visit our Ocosuyo 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 May
Explore Ocosuyo's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Ocosuyo spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
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.
heavy rainfall
high
moderate
low
almost none
Ocosuyo vs World: Rainfall Compared
Ocosuyo's average annual precipitation is 1441 mm (57 in). Let's compare this to some popular worldwide tourist destinations:
New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.
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.
Climate change is affecting precipitation patterns worldwide, including Ocosuyo:
- 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 Ocosuyo's weather, including sunshine hours, humidity levels, and temperature data, visit our Ocosuyo Climate page.