Peru Climate – June 2026 Update
Top 5 Cities: Lima, Arequipa, Trujillo, Chiclayo, and Cusco
This month in numbers
Peru experienced its 12th warmest June on record, with an average temperature of 18.15°C, marking an anomaly of +0.9°C compared to the 1961–1990 baseline. The three-month period from April to June 2026 was the 13th warmest on record, with an average temperature of 18.87°C, a +1°C anomaly. Globally, June 2026 ranked as the 3rd warmest June for land temperatures, with an anomaly of +1°C, while the April-June period was the 2nd warmest on record globally for land temperatures, also with a +1°C anomaly.
What changed
Peru's recent warmth aligns with a broader trend, as the country's average temperature for 2025 was 20.02°C, making it the warmest year on record since 1941. This contributes to a long-term warming trend of +1.03°C compared to the 1961–1990 baseline. Within South America, Peru's June anomaly of +0.94°C was warmer than the group average of +0.60°C, placing it as the 4th warmest in the region for the month.
What’s driving change?
The primary driver behind Peru's current warming trend and recent extreme weather is El Niño. The current state is a weak El Niño, with a Niño 3.4 anomaly of +0.98°C for April-June 2026, and a weekly Niño 3.4 SST anomaly of +1.8°C as of July 1, 2026. Forecasts indicate a 100% probability of El Niño persisting through the end of 2026 and into early 2027, with some models suggesting a very strong event. El Niño typically brings warmer and wetter conditions to coastal Peru and Ecuador, leading to increased rainfall and flooding risk. This is evident in the recent flood event in Peru from July 1 to July 10, 2026, which represents 100% of the annual total of flood events for the country, an unusual concentration. Peru has declared a 60-day state of emergency in nearly 800 districts across 22 regions due to the imminent threat of intense rainfall associated with the 2026–2027 El Niño phenomenon. More information on active extreme weather events can be found at Extreme Weather tracker and on the ENSO phenomenon at ENSO.
Looking ahead
The ongoing El Niño is expected to continue into early 2027, with forecasts suggesting it will bring moderate to heavy rainfall to Peru, particularly affecting coastal areas and potentially impacting agricultural harvests.
Generated by Gemini from climate data and web sources
At a Glance
Temperature – Average
Year-on-Year Trends
The 4byo Climate Helix – Peru
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Peru – Monthly Temperature – All Years
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Records – Peru
Our World in Data / NOAA - Anomalies vs 1901-2000 mean
Shifting Seasons
Weakly seasonalKöppen Cfb · TemperatePeru is weakly seasonal - temperature barely changes across the year (1.9°C range) and rainfall is fairly even. The clearest climate signal here is overall warming: monthly temperature has risen in every month.
Baseline vs recent monthly temperature climatology. Biggest warming: Sep (+1.5°C). The warmest month has shifted from Feb to Nov.
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Rainfall & Precipitation
Rainfall & Rain Days – Totals
Headline: anomaly vs the 1961–1990 mean. Small figure: the actual value. Rank: position in the full record (1st = highest ever). Record: highest (or lowest) value on record with its year.
Climate Systems
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Emissions & Energy
Explore
Explore Climate Data
Data Sources
Data Sources for Peru
Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) - see the Methodology & Sources page for the complete dataset list and update calendar.
FAQs
FAQs
How is the climate in Peru changing?
Peru is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The headline panel also shows the long-term trend rate per decade and the warmest and coolest years on file.
Where does the climate data for Peru come from?
Climate data for Peru comes from Our World in Data, sourcing Copernicus ERA5 and HadCRUT5 (national temperature anomaly) and the Global Carbon Project via Our World in Data (CO₂ emissions), refreshed every month, when the upstream temperature and rainfall data are refreshed.
What is the climate baseline used on this page?
Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.
Which areas does the Peru climate data cover?
The Peru climate profile covers Lima, Arequipa, Trujillo, Chiclayo and surrounding areas. Temperature, rainfall and emissions data for Peru
How often is the Peru climate update refreshed?
The Peru climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.