Arequipa climate — normals and trends
Arequipa (Peru) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 12.6 °C and it receives 786 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is October (13.8 °C on average) and the coldest is June (11.8 °C). Rainfall peaks in February.
Arequipa averages 0 frost days, 0 hot days (≥ 30 °C) and 123 rainy days per year.
Arequipa has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 25.9 °C (on 15 October 2014) and the coldest 1.2 °C (on 8 August 2024).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
ArequipaArequipa
- coords
- -16.40°, -71.54°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.6°C
Average daily high
18.3°C
Average daily low
8.3°C
Annual rainfall
786mm
Sunshine / day
10.8h
Mean relative humidity
56%
Average peak wind
12.0km/h
Seasonal range
2.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
123 d/yr
Annual snowfall
0.1 cm
Average feels-like high
17.2 °C
Average feels-like low
5.7 °C
Average peak gust
32.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
22.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.67 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
25.9 °C
15 October 2014
Coldest day
1.2 °C
8 August 2024
Wettest day
46 mm
30 March 1942
Windiest day
19.7 km/h
25 November 1945
Strongest gust
51.1 km/h
9 August 2015
Hottest feels-like
25.9 °C
8 February 2001
Coldest feels-like
-3.9 °C
8 August 2024
Snowiest day
1.1 cm
10 August 1997
Sunniest day
12.9 h
24 November 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 16.8 °C | +0.3 °C | 213 mm | +15 mm |
| Feb | 16.9 °C | +0.7 °C | 387 mm | +174 mm |
| Mar | 17.3 °C | +0.8 °C | 183 mm | -2 mm |
| Apr | 18.7 °C | +1.0 °C | 45 mm | -16 mm |
| May | 20.8 °C | +2.0 °C | 1 mm | -9 mm |
| Jun | 19.2 °C | +0.5 °C | 0 mm | -2 mm |
| Jul | 20.5 °C | +1.7 °C | 0 mm | -1 mm |
| Aug | 20.0 °C | +0.5 °C | 0 mm | -2 mm |
| Sep | 21.5 °C | +1.6 °C | 4 mm | -0 mm |
| Oct | 21.5 °C | +1.5 °C | 3 mm | -6 mm |
| Nov | 21.4 °C | +2.1 °C | 0 mm | -23 mm |
| Dec | 20.1 °C | +2.0 °C | 15 mm | -65 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Arequipa?
Arequipa has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 12.6 °C and it receives 786 mm of precipitation per year.
What is the hottest day ever recorded in Arequipa?
The hottest day measured in Arequipa between 1940 and 2025 was 15 October 2014, reaching 25.9 °C.
What is the coldest day in Arequipa?
The coldest day measured in Arequipa between 1940 and 2025 was 8 August 2024, at 1.2 °C.
Does it snow in Arequipa?
Almost never: Arequipa sees virtually no snow, with about 0 frost days per year.
Has the climate of Arequipa warmed?
Yes: Arequipa warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Arequipa?
The wettest day measured in Arequipa between 1940 and 2025 was 30 March 1942, with 46 mm of rain in 24 hours.
What was the windiest day in Arequipa?
The windiest day measured in Arequipa between 1940 and 2025 was 25 November 1945, with winds reaching 19.7 km/h.
What is the warmest month in Arequipa?
The warmest month in Arequipa is October (13.8 °C on average); the coldest is June (11.8 °C).
How much does it rain in Arequipa?
Arequipa receives on average 786 mm of precipitation per year, spread over about 123 rainy days.
Is it sunny in Arequipa?
Arequipa gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
What is the biggest single-day snowfall in Arequipa?
The heaviest 24-hour snowfall measured in Arequipa between 1940 and 2025 was 10 August 1997, with 1.1 cm.
Are there tropical nights in Arequipa?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Arequipa.
What was the most extreme apparent temperature in Arequipa?
In Arequipa, between 1940 and 2025, the highest apparent temperature reached 25.9 °C on 8 February 2001, and the lowest was -3.9 °C on 8 August 2024.
Compare Arequipa with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Arequipa