Alfenas climate — normals and trends
Alfenas (Brazil) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 20.7 °C and it receives 1,273 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 (23.0 °C on average) and the coldest is July (17.0 °C). Rainfall peaks in December.
Alfenas averages 0 frost days, 39 hot days (≥ 30 °C) and 143 rainy days per year.
Alfenas has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.9 °C (on 25 September 2023) and the coldest 1.0 °C (on 20 July 2021).
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
AlfenasMinas Gerais
- coords
- -21.43°, -45.95°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
20.7°C
Average daily high
26.0°C
Average daily low
16.2°C
Annual rainfall
1,273mm
Sunshine / day
9.5h
Mean relative humidity
74%
Average peak wind
11.4km/h
Seasonal range
6.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
39 d/yr
Rainy days (≥ 1 mm)
143 d/yr
Annual snowfall
0.0 cm
Average feels-like high
27.8 °C
Average feels-like low
16.8 °C
Average peak gust
28.0 km/h
Tropical nights (≥ 20 °C)
34 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.66 · 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
36.9 °C
25 September 2023
Coldest day
1.0 °C
20 July 2021
Wettest day
180 mm
27 November 1960
Windiest day
28.6 km/h
16 July 2016
Strongest gust
69.5 km/h
28 November 1950
Hottest feels-like
39.6 °C
6 March 2009
Coldest feels-like
-2.7 °C
20 July 2021
Sunniest day
13.3 h
23 December 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 | 29.0 °C | +1.4 °C | 185 mm | -39 mm |
| Feb | 30.0 °C | +2.2 °C | 76 mm | -91 mm |
| Mar | 29.5 °C | +2.2 °C | 77 mm | -62 mm |
| Apr | 26.6 °C | +0.6 °C | 86 mm | +27 mm |
| May | 24.7 °C | +0.8 °C | 0 mm | -39 mm |
| Jun | 23.9 °C | +1.0 °C | 13 mm | -10 mm |
| Jul | 24.0 °C | +0.9 °C | 7 mm | -13 mm |
| Aug | 26.1 °C | +0.9 °C | 8 mm | -15 mm |
| Sep | 28.9 °C | +1.9 °C | 13 mm | -45 mm |
| Oct | 28.3 °C | +1.1 °C | 79 mm | -42 mm |
| Nov | 28.5 °C | +1.5 °C | 100 mm | -73 mm |
| Dec | 29.4 °C | +2.3 °C | 146 mm | -82 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 Alfenas?
Alfenas has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 20.7 °C and it receives 1,273 mm of precipitation per year.
What is the hottest day ever recorded in Alfenas?
The hottest day measured in Alfenas between 1940 and 2025 was 25 September 2023, reaching 36.9 °C.
What is the coldest day in Alfenas?
The coldest day measured in Alfenas between 1940 and 2025 was 20 July 2021, at 1.0 °C.
Does it snow in Alfenas?
Almost never: Alfenas sees virtually no snow, with about 0 frost days per year.
Has the climate of Alfenas warmed?
Yes: Alfenas warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Alfenas?
The wettest day measured in Alfenas between 1940 and 2025 was 27 November 1960, with 180 mm of rain in 24 hours.
What was the windiest day in Alfenas?
The windiest day measured in Alfenas between 1940 and 2025 was 16 July 2016, with winds reaching 28.6 km/h.
What is the warmest month in Alfenas?
The warmest month in Alfenas is February (23.0 °C on average); the coldest is July (17.0 °C).
How much does it rain in Alfenas?
Alfenas receives on average 1,273 mm of precipitation per year, spread over about 143 rainy days.
Is it sunny in Alfenas?
Alfenas gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
Are there tropical nights in Alfenas?
Yes: Alfenas has on average 34 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Alfenas?
In Alfenas, between 1940 and 2025, the highest apparent temperature reached 39.6 °C on 6 March 2009, and the lowest was -2.7 °C on 20 July 2021.
Compare Alfenas with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Alfenas