Unaí climate — normals and trends
Unaí (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 23.0 °C and it receives 1,194 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 (24.8 °C on average) and the coldest is July (20.3 °C). Rainfall peaks in December.
Unaí averages 0 frost days, 99 hot days (≥ 30 °C) and 132 rainy days per year.
Unaí has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.6 °C (on 15 October 1963) and the coldest 4.7 °C (on 19 May 2022).
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
UnaíMinas Gerais
- coords
- -16.36°, -46.91°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.0°C
Average daily high
28.5°C
Average daily low
18.1°C
Annual rainfall
1,194mm
Sunshine / day
10.3h
Mean relative humidity
68%
Average peak wind
11.1km/h
Seasonal range
4.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
99 d/yr
Rainy days (≥ 1 mm)
132 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.9 °C
Average feels-like low
19.1 °C
Average peak gust
27.9 km/h
Tropical nights (≥ 20 °C)
91 d/yr
Solar radiation
19.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.45 · 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
39.6 °C
15 October 1963
Coldest day
4.7 °C
19 May 2022
Wettest day
126 mm
31 October 1995
Windiest day
27.5 km/h
20 January 1977
Strongest gust
64.8 km/h
2 January 1942
Hottest feels-like
40.7 °C
21 October 2015
Coldest feels-like
1.9 °C
19 May 2022
Sunniest day
12.8 h
15 December 2023
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 | 28.6 °C | 0.0 °C | 304 mm | +105 mm |
| Feb | 30.1 °C | +1.5 °C | 32 mm | -120 mm |
| Mar | 30.8 °C | +2.3 °C | 53 mm | -111 mm |
| Apr | 29.3 °C | +1.2 °C | 96 mm | +26 mm |
| May | 27.1 °C | -0.2 °C | 2 mm | -18 mm |
| Jun | 27.4 °C | +0.7 °C | 0 mm | -5 mm |
| Jul | 27.2 °C | +0.4 °C | 0 mm | -3 mm |
| Aug | 29.5 °C | +0.6 °C | 0 mm | -4 mm |
| Sep | 31.2 °C | +0.3 °C | 11 mm | -15 mm |
| Oct | 31.0 °C | +0.5 °C | 25 mm | -95 mm |
| Nov | 30.5 °C | +1.7 °C | 117 mm | -84 mm |
| Dec | 28.5 °C | +0.2 °C | 200 mm | -31 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 Unaí?
Unaí has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 23.0 °C and it receives 1,194 mm of precipitation per year.
What is the hottest day ever recorded in Unaí?
The hottest day measured in Unaí between 1940 and 2025 was 15 October 1963, reaching 39.6 °C.
What is the coldest day in Unaí?
The coldest day measured in Unaí between 1940 and 2025 was 19 May 2022, at 4.7 °C.
Does it snow in Unaí?
Almost never: Unaí sees virtually no snow, with about 0 frost days per year.
Has the climate of Unaí warmed?
Yes: Unaí warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Unaí?
The wettest day measured in Unaí between 1940 and 2025 was 31 October 1995, with 126 mm of rain in 24 hours.
What was the windiest day in Unaí?
The windiest day measured in Unaí between 1940 and 2025 was 20 January 1977, with winds reaching 27.5 km/h.
What is the warmest month in Unaí?
The warmest month in Unaí is October (24.8 °C on average); the coldest is July (20.3 °C).
How much does it rain in Unaí?
Unaí receives on average 1,194 mm of precipitation per year, spread over about 132 rainy days.
Is it sunny in Unaí?
Unaí gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
Are there tropical nights in Unaí?
Yes: Unaí has on average 91 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Unaí?
In Unaí, between 1940 and 2025, the highest apparent temperature reached 40.7 °C on 21 October 2015, and the lowest was 1.9 °C on 19 May 2022.
Compare Unaí with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Unaí