Juliaca Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Juliaca, Arequipa, Peru. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Let's explore the details to provide you with a complete overview.
Juliaca has a notably wet climate with abundant precipitation, recording 1113 mm (44 in) of rain/snowfall per year. It does, however, have a distinct dry season during certain months. Have a look at our detailed charts below to see how precipitation varies throughout the year.
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 213 mm (8.4 in) of precipitation, recorded across 23 rainy days.
In contrast, the driest month, July brings less rainfall, with 8.6 mm (0.3 in) over 2 rainy days.February, the wettest month, has a maximum daytime temperature of 16°C (61°F). During the driest month July you can expect a temperature of 17°C (63°F). For more detailed insights into the city's temperatures, visit our Juliaca Temperature page.
Daily Historical Precipitation
45-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Juliaca's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Juliaca 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
Juliaca vs World: Rainfall Compared
Juliaca's average annual precipitation is 1113 mm (44 in). Let's compare this to some popular worldwide tourist destinations:
The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
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.
- Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
- In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
- Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.
For more detailed information about Juliaca's weather, including sunshine hours, humidity levels, and temperature data, visit our Juliaca Climate page.
