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Weather extremes

How extreme does Arequipa's weather get?

The hottest, coldest, wettest and snowiest days Arequipa has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 34 years of daily weather observations (1991–present), from the Rodriguez Ballon station 8 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Arequipa has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
90°F May 11, 1998

That is about 18°F hotter than a normal May afternoon in Arequipa (typical high near 72°F).

The three most extreme on record

1 90°F May 11, 1998
2 86°F May 23, 1998
3 86°F Feb 2, 2010
❄️ Coldest night
25°F Jul 15, 2010

About 20°F colder than a normal July night in Arequipa (typical low near 45°F).

The three most extreme on record

1 25°F Jul 15, 2010
2 28°F Jul 8, 1991
3 29°F Aug 8, 1991
🌧️ Most rain in one day
9.30 in Feb 1, 2015

More rain in a single day than Arequipa usually gets in the whole month of February (typical February total about 1.9 in).

The three most extreme on record

1 9.30 in Feb 1, 2015
2 9.29 in Jan 25, 2019
3 5.36 in Oct 22, 2018

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

10°30°50°70°90°110° all-time high 90°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Arequipa's record heat sits well above even a hot day for the season — May's 90°F is about 18°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Arequipa's warmest days reach the low 70s°F and its coldest nights drop to the mid-40s°F. But across the record it has gone as high as 90°F and as low as 25°F. A single day has delivered over 9 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from SENAMHI, Peru's national weather service, measured at La Pampilla, about 2 km from the city centre.

How we build these numbers →