Pacasmayo climate — normals and trends
Pacasmayo (Peru) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 19.0 °C and it receives 125 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 March (22.2 °C on average) and the coldest is September (16.7 °C). Rainfall peaks in March.
Pacasmayo averages 0 frost days, 0 hot days (≥ 30 °C) and 25 rainy days per year.
No statistically significant temperature trend emerges for Pacasmayo between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 29.2 °C (on 15 February 1998) and the coldest 11.8 °C (on 14 October 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
PacasmayoLa Libertad
- coords
- -7.40°, -79.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.0°C
Average daily high
20.7°C
Average daily low
17.7°C
Annual rainfall
125mm
Sunshine / day
10.9h
Mean relative humidity
88%
Average peak wind
20.8km/h
Seasonal range
5.5°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
22.2 °C
Average feels-like low
18.2 °C
Average peak gust
32.5 km/h
Tropical nights (≥ 20 °C)
73 d/yr
Solar radiation
21.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
No clear trend over this period
Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.
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
29.2 °C
15 February 1998
Coldest day
11.8 °C
14 October 1954
Wettest day
96 mm
8 March 1942
Windiest day
34.5 km/h
5 July 1993
Strongest gust
52.6 km/h
15 April 1962
Hottest feels-like
34.6 °C
14 February 1998
Coldest feels-like
9.8 °C
11 July 1954
Sunniest day
12.4 h
10 January 2020
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 | 21.6 °C | -1.0 °C | 9 mm | -8 mm |
| Feb | 24.1 °C | +0.3 °C | 25 mm | +1 mm |
| Mar | 24.4 °C | +0.6 °C | 22 mm | -11 mm |
| Apr | 22.4 °C | +0.1 °C | 11 mm | -6 mm |
| May | 20.8 °C | -0.2 °C | 6 mm | -4 mm |
| Jun | 20.3 °C | +0.5 °C | 1 mm | -4 mm |
| Jul | 19.5 °C | +0.5 °C | 0 mm | -3 mm |
| Aug | 19.0 °C | +0.4 °C | 0 mm | -1 mm |
| Sep | 18.5 °C | 0.0 °C | 3 mm | +2 mm |
| Oct | 18.9 °C | +0.2 °C | 8 mm | +5 mm |
| Nov | 19.3 °C | -0.3 °C | 8 mm | +5 mm |
| Dec | 19.9 °C | -1.1 °C | 0 mm | -7 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 Pacasmayo?
Pacasmayo has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 19.0 °C and it receives 125 mm of precipitation per year.
What is the hottest day ever recorded in Pacasmayo?
The hottest day measured in Pacasmayo between 1940 and 2025 was 15 February 1998, reaching 29.2 °C.
What is the coldest day in Pacasmayo?
The coldest day measured in Pacasmayo between 1940 and 2025 was 14 October 1954, at 11.8 °C.
Does it snow in Pacasmayo?
Almost never: Pacasmayo sees virtually no snow, with about 0 frost days per year.
Has the climate of Pacasmayo warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Pacasmayo.
What is the wettest day in Pacasmayo?
The wettest day measured in Pacasmayo between 1940 and 2025 was 8 March 1942, with 96 mm of rain in 24 hours.
What was the windiest day in Pacasmayo?
The windiest day measured in Pacasmayo between 1940 and 2025 was 5 July 1993, with winds reaching 34.5 km/h.
What is the warmest month in Pacasmayo?
The warmest month in Pacasmayo is March (22.2 °C on average); the coldest is September (16.7 °C).
How much does it rain in Pacasmayo?
Pacasmayo receives on average 125 mm of precipitation per year, spread over about 25 rainy days.
Is it sunny in Pacasmayo?
Pacasmayo gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
Are there tropical nights in Pacasmayo?
Yes: Pacasmayo has on average 73 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Pacasmayo?
In Pacasmayo, between 1940 and 2025, the highest apparent temperature reached 34.6 °C on 14 February 1998, and the lowest was 9.8 °C on 11 July 1954.
Compare Pacasmayo with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Pacasmayo