Country

Peru

Explore historical and projected climate data, climate data by sector, impacts, key vulnerabilities and what adaptation measures are being taken. Explore the overview for a general context of how climate change is affecting Peru.

Current Climate Climatology

This page presents Peru's climate context for the current climatology, 1991-2020, derived from observed, historical data. Information should be used to build a strong understanding of current climate conditions in order to appreciate future climate scenarios and projected change. You can visualize data for the current climatology through spatial variation, the seasonal cycle, or as a time series. Analysis is available for both annual and seasonal data. Data presentation defaults to national-scale aggregation, however sub-national data aggregations can be accessed by clicking within a country, on a sub-national unit.  Other historical climatologies can be selected from the Time Period dropdown list. Data for  specific coordinates can be downloaded for in the Data Download page.

Observed, historical data is produced by the Climatic Research Unit (CRU) of University of East Anglia. Data is presented at a 0.5º x 0.5º (50km x 50km) resolution.

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Climate Data Historical

Peru is a diverse country defined by the Andean mountain range, which runs north-south, dividing the country into three broad climatic regions: the Coast, the Andean Highlands, and the Eastern lowlands and Amazon rainforest. The Coast experiences a semi-arid, subtropical desert climate with average annual rainfall of 150 mm. Along the southern and central coast, temperatures vary from 13˚–26˚C, with colder months in May and October. The north has a more semi-tropical climate and temperatures average 24˚C. In the Andean highlands, climate varies with elevation; traditionally, a rainy season occurs from September– March (although it can start as late as December) and a dry, cold season from May–August. Average temperatures range from 11˚–18˚C, and annual rainfall from 50–1000 mm, with drier conditions along the southwest and wetter conditions along the east. The northern Andes are subject to frosts, while the southern Andes are drought-prone. The Eastern lowlands and Amazon rainforest have a tropical climate, with high temperatures and rainfall throughout the year. Average temperatures range from 22˚C in the eastern Andes to 31˚C in the Amazon, with annual rainfall from 1,000–3,000 mm.

Temperature

  • Since the 1960s, Peru’s average temperature have increased 1˚C and the number of cold days and nights have decreased; and the number warm days and nights have increased.

Precipitation

  • Since the 1960s, Peru has experienced increased precipitation along the coast and northern mountains, coupled with increased intensity and frequency of rainfall events.
  • Rainfall has decreased in the northern rainforests, and the intensity and frequency of rainfall events in the central highlands have also decreased.
  • Greater recurrence of dry spells and droughts in central and southern highlands and rainforest. Number of intense rainstorms, mudflows and forest fires more than doubled in the past 10 years and floods have increased by 60% since the 1970s.
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