Cajamarca Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Cajamarca, Cajamarca, Peru. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let's break down all the details for a clearer picture.
Cajamarca is known for its substantial rainfall, with annual precipitation reaching 2763 mm (109 in). While the overall climate is wet, there are notable seasonal patterns that create interesting contrasts, as demonstrated in our graph below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Cajamarca can be quite wet during March, receiving approximately 439 mm (17 in) of precipitation over 19 rainy days.
In contrast July, experiences much drier conditions, with 41 mm (1.6 in) of rainfall, spread across 4 rainy days.
March, the wettest month, has a maximum daytime temperature of 17°C (63°F). During the driest month July you can expect a temperature of 18°C (64°F). For more detailed insights into the city's temperatures, visit our Cajamarca Temperature page.
Daily Historical Precipitation
32-year average (1984-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Cajamarca's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Cajamarca 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
Cajamarca vs World: Rainfall Compared
Cajamarca's average annual precipitation is 2763 mm (109 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.
In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.
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 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 Cajamarca's weather, including sunshine hours, humidity levels, and temperature data, visit our Cajamarca Climate page.
