Rimac River’s Flow grew 23.5% in August of 2025

The National Institute of Statistics and Informatics (INEI) informed that according to the information provided by the National Service of Meteorology and Hydrology (SENAMHI), the average of the Rimac River’s flow reached 25.73 m3/s a higher result in 23.5% and 21.4% compared to the same month of 2024 and to its historic average, respectively.

In the technical report Environmental Statistics, it was also informed that the Chillon River’s flow reached 1.20 m3/s, figure that represented a reduction of 45.0% and 29.4% compared to the month of August of 2024 and to its historic average.

On the other hand, during August of the current year, the Mala River’s flow totalized 2.19 m3/s result that represented an increase of 64.7% and 56.4% compared to the same month of 2024 and to its historic average, respectively.

According to the information of the SENAMHI, during the month of August of 2025, the average river flow of the North Pacific slope registered an increase in their flows; therefore, the average river Flow of the Calvas River reached 19.05 m3/s higher in 210.8% and 12.4% compared to the same month of 2024 and to its historic average, respectively. The Jequetepeque River registered 3.18 m3/s greater in 120.8% and 32.0% compared to August of the last year and to its historic average.

In addition, the average Chira River’s flow (50.09 m3/s) increased by 114.9% and 15.6% compared to the same month of 2024 and the historic average, respectively, and the Tumbes River reached 30.1 m3/s higher result in 24.5% and 21.8% compared to the same month of the last year and historic average, respectively.

The Service of Potable Water and Sewerage Service of Lima Metropolitan area (SEDAPAL), informed that during the month of August of 2025, the potable water production in Lima Metropolitan area reached 66,104.000 cubic meters, result that represented an increase of 2.1% compared to the same month of the last year.

During August of 2025, the monitoring of the SENAMHI registered moderated levels of ultraviolet radiation in Lima Metropolitan area, with a value of 3rd level, which means there is a need to protect the skin and vision.

According to the information of the SENAMHI, during the month of August of 2025, the station of Lima Centro, in San Borja, registered high levels of concentration of inhalable particles such as dust, soot, pollen and other solid or liquid particles in the atmosphere, causing serious damage to health, especially respiratory problems in persons.

The monitoring of 17 stations of the SENAMHI registered that during the month of August of 2025, the departments of Tacna, Puno and Arequipa registered the lowest temperatures. The greater cold sensation was registered in the stations of Chuapalca (-20.6 °C) and Bocatoma (-17.5 °C) in Tacna; also in the stations of Mazo Cruz (-17.6 °C), Cojata (-12.8 °C), Macusani (-11.4 °C), Santa Rosa (-12.6 °C), Crucero Alto (-10.4 °C), and Desaguadero (-8.0 °C) in Puno; and in the stations of Pillones (-14.8 °C), Imata (-14.0 °C), Las Salinas (-11.6 °C) and Tisco (-11.1°C) in Arequipa.

In addition, in the following stations were registered low temperatures: Laive (-9.1°C) and La Oroya (-4.6 °C) in Junín; Sicuani (-7.0 °C) in Cusco, Cerro de Pasco (-5.0 °C) in Pasco; and in the station of Ubinas (-1.0°C) in Moquegua.

According to the information of the National Institute of Civil Defense (INDECI), during the month of August of 2025 registered 348 emergencies at national level, result lower in 11.9% compared to the same month of 2024. The emergencies left 695 affected people, 1 274 affected homes, 93 homes destroyed and 37 hectares of cultivated land destroyed.

The departments with greater number of emergencies were: Cusco (42), Apurímac (37), Huancavelica (30), Piura (26), Cajamarca (20), Puno (19), Junín, Lima and Ucayali (18 in each case), Amazonas and La Libertad (14 in each case), Arequipa and Huánuco (12 in each case), Ancash and San Martín (9 in each case), Ica and Pasco (8 in each case), Ayacucho (7), Lambayeque, Moquegua and Tacna (6 in each case), Loreto (5), Madre de Dios and Tumbes (2 in each case), meanwhile that in Callao were not registered emergencies.

The main causes of these emergencies were: urban and industrial fires (111), strong winds (84), low temperatures (63), forest fires (26), heavy rains (22), transport accidents (18), landslides (7), hills collapse (6), erosions and droughts (3 in each case), floods (2), huayco, tidal wave and explosion (1 in each case).