Dianópolis climate — normals and trends
Dianópolis (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.1 °C and it receives 1,540 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 September (27.7 °C on average) and the coldest is February (24.1 °C). Rainfall peaks in January.
Dianópolis averages 0 frost days, 213 hot days (≥ 30 °C) and 147 rainy days per year.
Dianópolis has warmed by +0.7 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.9 °C (on 5 October 2024) and the coldest 12.0 °C (on 18 July 2025).
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
DianópolisTocantins
- coords
- -11.63°, -46.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.1°C
Average daily high
30.5°C
Average daily low
20.5°C
Annual rainfall
1,540mm
Sunshine / day
10.5h
Mean relative humidity
66%
Average peak wind
12.9km/h
Seasonal range
3.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
213 d/yr
Rainy days (≥ 1 mm)
147 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.6 °C
Average feels-like low
21.7 °C
Average peak gust
31.5 km/h
Tropical nights (≥ 20 °C)
242 d/yr
Solar radiation
19.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.7 °C
since 1940
+0.1 °C per decade · r² = 0.14 · 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
39.9 °C
5 October 2024
Coldest day
12.0 °C
18 July 2025
Wettest day
167 mm
25 December 1963
Windiest day
29.2 km/h
31 October 1957
Strongest gust
65.2 km/h
17 December 2000
Hottest feels-like
43.0 °C
21 December 2012
Coldest feels-like
10.3 °C
18 July 2025
Sunniest day
12.6 h
7 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 | 29.0 °C | +0.1 °C | 278 mm | +11 mm |
| Feb | 30.2 °C | +1.4 °C | 91 mm | -153 mm |
| Mar | 31.1 °C | +2.3 °C | 112 mm | -135 mm |
| Apr | 30.9 °C | +1.4 °C | 149 mm | +19 mm |
| May | 31.3 °C | +1.0 °C | 19 mm | -12 mm |
| Jun | 32.1 °C | +1.5 °C | 0 mm | -3 mm |
| Jul | 31.9 °C | +1.0 °C | 0 mm | -1 mm |
| Aug | 33.7 °C | +1.1 °C | 1 mm | -1 mm |
| Sep | 35.4 °C | +1.4 °C | 5 mm | -14 mm |
| Oct | 34.7 °C | +2.0 °C | 41 mm | -75 mm |
| Nov | 31.6 °C | +1.6 °C | 176 mm | -51 mm |
| Dec | 29.6 °C | +0.4 °C | 214 mm | -41 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 Dianópolis?
Dianópolis has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.1 °C and it receives 1,540 mm of precipitation per year.
What is the hottest day ever recorded in Dianópolis?
The hottest day measured in Dianópolis between 1940 and 2025 was 5 October 2024, reaching 39.9 °C.
What is the coldest day in Dianópolis?
The coldest day measured in Dianópolis between 1940 and 2025 was 18 July 2025, at 12.0 °C.
Does it snow in Dianópolis?
Almost never: Dianópolis sees virtually no snow, with about 0 frost days per year.
Has the climate of Dianópolis warmed?
Yes: Dianópolis warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dianópolis?
The wettest day measured in Dianópolis between 1940 and 2025 was 25 December 1963, with 167 mm of rain in 24 hours.
What was the windiest day in Dianópolis?
The windiest day measured in Dianópolis between 1940 and 2025 was 31 October 1957, with winds reaching 29.2 km/h.
What is the warmest month in Dianópolis?
The warmest month in Dianópolis is September (27.7 °C on average); the coldest is February (24.1 °C).
How much does it rain in Dianópolis?
Dianópolis receives on average 1,540 mm of precipitation per year, spread over about 147 rainy days.
Is it sunny in Dianópolis?
Dianópolis gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Dianópolis?
Yes: Dianópolis has on average 242 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dianópolis?
In Dianópolis, between 1940 and 2025, the highest apparent temperature reached 43.0 °C on 21 December 2012, and the lowest was 10.3 °C on 18 July 2025.
Compare Dianópolis with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dianópolis