Diamantina climate — normals and trends
Diamantina (Brazil) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 19.5 °C and it receives 1,390 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 (21.5 °C on average) and the coldest is July (16.3 °C). Rainfall peaks in December.
Diamantina averages 0 frost days, 12 hot days (≥ 30 °C) and 139 rainy days per year.
Diamantina has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.4 °C (on 15 October 1963) and the coldest 4.0 °C (on 20 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
DiamantinaMinas Gerais
- coords
- -18.25°, -43.60°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.5°C
Average daily high
24.7°C
Average daily low
15.3°C
Annual rainfall
1,390mm
Sunshine / day
9.8h
Mean relative humidity
77%
Average peak wind
11.2km/h
Seasonal range
5.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
12 d/yr
Rainy days (≥ 1 mm)
139 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.2 °C
Average feels-like low
15.8 °C
Average peak gust
30.4 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
17.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.62 · 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
35.4 °C
15 October 1963
Coldest day
4.0 °C
20 May 2022
Wettest day
214 mm
24 January 1983
Windiest day
25.5 km/h
25 November 1957
Strongest gust
78.1 km/h
25 November 1957
Hottest feels-like
40.5 °C
11 February 1998
Coldest feels-like
1.7 °C
19 May 2022
Sunniest day
13.1 h
5 January 1941
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 | 26.6 °C | +0.4 °C | 350 mm | +135 mm |
| Feb | 27.6 °C | +1.2 °C | 13 mm | -136 mm |
| Mar | 27.2 °C | +1.3 °C | 116 mm | -45 mm |
| Apr | 25.5 °C | +0.9 °C | 117 mm | +31 mm |
| May | 22.6 °C | -0.6 °C | 13 mm | -20 mm |
| Jun | 23.0 °C | +0.7 °C | 5 mm | -9 mm |
| Jul | 22.4 °C | +0.3 °C | 9 mm | -3 mm |
| Aug | 24.0 °C | +0.2 °C | 5 mm | -8 mm |
| Sep | 25.9 °C | +0.3 °C | 31 mm | -13 mm |
| Oct | 25.3 °C | -0.6 °C | 50 mm | -99 mm |
| Nov | 26.4 °C | +1.4 °C | 111 mm | -138 mm |
| Dec | 27.0 °C | +1.7 °C | 209 mm | -58 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 Diamantina?
Diamantina has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 19.5 °C and it receives 1,390 mm of precipitation per year.
What is the hottest day ever recorded in Diamantina?
The hottest day measured in Diamantina between 1940 and 2025 was 15 October 1963, reaching 35.4 °C.
What is the coldest day in Diamantina?
The coldest day measured in Diamantina between 1940 and 2025 was 20 May 2022, at 4.0 °C.
Does it snow in Diamantina?
Almost never: Diamantina sees virtually no snow, with about 0 frost days per year.
Has the climate of Diamantina warmed?
Yes: Diamantina warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Diamantina?
The wettest day measured in Diamantina between 1940 and 2025 was 24 January 1983, with 214 mm of rain in 24 hours.
What was the windiest day in Diamantina?
The windiest day measured in Diamantina between 1940 and 2025 was 25 November 1957, with winds reaching 25.5 km/h.
What is the warmest month in Diamantina?
The warmest month in Diamantina is February (21.5 °C on average); the coldest is July (16.3 °C).
How much does it rain in Diamantina?
Diamantina receives on average 1,390 mm of precipitation per year, spread over about 139 rainy days.
Is it sunny in Diamantina?
Diamantina gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
Are there tropical nights in Diamantina?
Yes: Diamantina has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Diamantina?
In Diamantina, between 1940 and 2025, the highest apparent temperature reached 40.5 °C on 11 February 1998, and the lowest was 1.7 °C on 19 May 2022.
Compare Diamantina with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Diamantina