Everyday Climate Change in Lima
Peru · South America · Everyday climate impact
This page uses 50 years of real, daily weather data for Lima,Peru to show 20 everyday facts about how the climate here has changed: how much extra water your body loses standing in the shade, how many more evenings with terrace weather and sticky tropical nights the city gets each year, how much efficiency a rooftop solar panel loses on its hottest afternoons, and how much faster laundry dries and drinks go flat. Each fact compares two real periods fromLima's own weather record, 1976 to 1986 against 2015 to 2025, so every number reflects this city's actual history rather than a global estimate.
Data through October 17, 2026.
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Frequently asked questions about Lima's climate
Is Christmas getting warmer in Lima?
The average high temperature during Christmas week, December 20 to 27, was 23.6°C in 1976 to 1986. In 2015 to 2025 that same week averaged 23°C. A drop of 0.6°C, Lima is one of the few capitals in this dataset where Christmas has actually gotten colder.
How many tropical nights does Lima get now?
Lima averaged 49 nights a year that never cooled below 20°C in 2015 to 2025, up from 32 in 1976 to 1986. A night like that is the main reason sleep gets worse during a heatwave, the body can't cool down enough to reach deep sleep.
How long do heatwaves last in Lima now?
The longest unbroken run of exceptionally hot days now averages 8 days a year, down from 8 days in Lima's own early record. The threshold is Lima's own 95th percentile hot day from the 1976 to 1986 window, not a fixed number for every city, so this measures how the city's own definition of too hot has shifted, not just how often it crossed some fixed temperature.
Is the pavement too hot for dogs in Lima?
On 28 days a year now, the temperature passes 25°C, hot enough that asphalt or sand in full sun reaches roughly 52°C, the point vets say a dog's paw pads start to burn within about a minute. That's up from 26 days in the 1976 to 1986 window. The simple test, press the back of your hand to the pavement for seven seconds, if that's too hot for you, it's too hot for a dog.
How hot does a parked car get in Lima?
Lima now has 268 days a year warm enough, above 20°C, for a closed car in the sun to get hot enough to melt chocolate left on the seat, compared with 282 in the early record. A closed car reaches that point within about an hour, which is also why leaving a child or a pet alone in the car, even briefly, is dangerous on far more days than it used to be.
Are dry spells getting longer in Lima?
The longest unbroken run of days with under 1mm of rain now averages 178 days a year, up from 168 in 1976 to 1986. Longer dry spells matter for sprinkler bans and cracking in clay soil foundations.
Is insect season getting longer in Lima?
The warm season here, days averaging above 10°C, is now about 0.4% cooler than in 1976 to 1986. Under the Q10 rule from biology, insects and mosquito larvae develop roughly twice as fast for every 10°C of warming, so this difference translates into slightly slower breeding cycles, one of the few places in this dataset where that is not the case.
