Chancay climate — normals and trends
Chancay (Peru) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 19.0 °C and it receives 109 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 February (22.2 °C on average) and the coldest is August (16.5 °C). Rainfall peaks in February.
Chancay averages 0 frost days, 0 hot days (≥ 30 °C) and 25 rainy days per year.
Chancay has warmed by +0.9 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.3 °C (on 16 February 1998) and the coldest 11.8 °C (on 13 July 1954).
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
ChancayLima region
- coords
- -11.57°, -77.27°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.0°C
Average daily high
22.1°C
Average daily low
17.0°C
Annual rainfall
109mm
Sunshine / day
10.9h
Mean relative humidity
84%
Average peak wind
13.9km/h
Seasonal range
5.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
25 d/yr
Annual snowfall
0.0 cm
Average feels-like high
23.9 °C
Average feels-like low
18.0 °C
Average peak gust
31.4 km/h
Tropical nights (≥ 20 °C)
37 d/yr
Solar radiation
20.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.10 · p = 0.003
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
31.3 °C
16 February 1998
Coldest day
11.8 °C
13 July 1954
Wettest day
57 mm
28 May 1941
Windiest day
23.5 km/h
28 August 1983
Strongest gust
48.6 km/h
28 August 1983
Hottest feels-like
35.8 °C
7 February 1983
Coldest feels-like
11.0 °C
7 September 1942
Sunniest day
12.6 h
15 January 2025
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 | 25.3 °C | +0.5 °C | 6 mm | -6 mm |
| Feb | 26.3 °C | +0.7 °C | 29 mm | +11 mm |
| Mar | 26.1 °C | +0.7 °C | 9 mm | -7 mm |
| Apr | 24.1 °C | +0.1 °C | 6 mm | -2 mm |
| May | 21.7 °C | -0.2 °C | 5 mm | -3 mm |
| Jun | 20.0 °C | -0.1 °C | 22 mm | +12 mm |
| Jul | 19.7 °C | +0.4 °C | 17 mm | +7 mm |
| Aug | 19.4 °C | +0.2 °C | 19 mm | +12 mm |
| Sep | 19.6 °C | -0.1 °C | 12 mm | +7 mm |
| Oct | 21.0 °C | +0.4 °C | 5 mm | +1 mm |
| Nov | 22.4 °C | +0.7 °C | 3 mm | -1 mm |
| Dec | 23.5 °C | +0.1 °C | 3 mm | -2 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 Chancay?
Chancay has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 19.0 °C and it receives 109 mm of precipitation per year.
What is the hottest day ever recorded in Chancay?
The hottest day measured in Chancay between 1940 and 2025 was 16 February 1998, reaching 31.3 °C.
What is the coldest day in Chancay?
The coldest day measured in Chancay between 1940 and 2025 was 13 July 1954, at 11.8 °C.
Does it snow in Chancay?
Almost never: Chancay sees virtually no snow, with about 0 frost days per year.
Has the climate of Chancay warmed?
Yes: Chancay warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chancay?
The wettest day measured in Chancay between 1940 and 2025 was 28 May 1941, with 57 mm of rain in 24 hours.
What was the windiest day in Chancay?
The windiest day measured in Chancay between 1940 and 2025 was 28 August 1983, with winds reaching 23.5 km/h.
What is the warmest month in Chancay?
The warmest month in Chancay is February (22.2 °C on average); the coldest is August (16.5 °C).
How much does it rain in Chancay?
Chancay receives on average 109 mm of precipitation per year, spread over about 25 rainy days.
Is it sunny in Chancay?
Chancay gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
Are there tropical nights in Chancay?
Yes: Chancay has on average 37 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Chancay?
In Chancay, between 1940 and 2025, the highest apparent temperature reached 35.8 °C on 7 February 1983, and the lowest was 11.0 °C on 7 September 1942.
Compare Chancay with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Chancay