Arinos climate — normals and trends
Arinos (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.2 °C and it receives 1,111 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 (26.2 °C on average) and the coldest is July (21.6 °C). Rainfall peaks in December.
Arinos averages 0 frost days, 154 hot days (≥ 30 °C) and 116 rainy days per year.
Arinos has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.6 °C (on 15 October 1963) and the coldest 8.2 °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
ArinosMinas Gerais
- coords
- -15.92°, -46.11°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.2°C
Average daily high
29.6°C
Average daily low
19.4°C
Annual rainfall
1,111mm
Sunshine / day
10.5h
Mean relative humidity
65%
Average peak wind
10.5km/h
Seasonal range
4.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
154 d/yr
Rainy days (≥ 1 mm)
116 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.2 °C
Average feels-like low
20.6 °C
Average peak gust
27.8 km/h
Tropical nights (≥ 20 °C)
179 d/yr
Solar radiation
19.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.43 · 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
40.6 °C
15 October 1963
Coldest day
8.2 °C
19 May 2022
Wettest day
114 mm
3 October 1981
Windiest day
26.2 km/h
20 August 2022
Strongest gust
63.0 km/h
25 January 2020
Hottest feels-like
43.3 °C
13 November 2015
Coldest feels-like
5.4 °C
19 May 2022
Sunniest day
12.8 h
14 December 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 | 29.4 °C | -0.2 °C | 258 mm | +76 mm |
| Feb | 31.6 °C | +1.8 °C | 17 mm | -118 mm |
| Mar | 32.7 °C | +3.2 °C | 39 mm | -111 mm |
| Apr | 30.8 °C | +1.7 °C | 89 mm | +26 mm |
| May | 28.8 °C | +0.3 °C | 3 mm | -14 mm |
| Jun | 29.0 °C | +1.1 °C | 0 mm | -4 mm |
| Jul | 28.6 °C | +0.7 °C | 0 mm | -3 mm |
| Aug | 30.7 °C | +0.7 °C | 0 mm | -3 mm |
| Sep | 32.6 °C | +0.5 °C | 4 mm | -14 mm |
| Oct | 32.7 °C | +0.9 °C | 23 mm | -86 mm |
| Nov | 32.0 °C | +2.3 °C | 104 mm | -98 mm |
| Dec | 29.9 °C | +0.7 °C | 170 mm | -56 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 Arinos?
Arinos has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.2 °C and it receives 1,111 mm of precipitation per year.
What is the hottest day ever recorded in Arinos?
The hottest day measured in Arinos between 1940 and 2025 was 15 October 1963, reaching 40.6 °C.
What is the coldest day in Arinos?
The coldest day measured in Arinos between 1940 and 2025 was 19 May 2022, at 8.2 °C.
Does it snow in Arinos?
Almost never: Arinos sees virtually no snow, with about 0 frost days per year.
Has the climate of Arinos warmed?
Yes: Arinos warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Arinos?
The wettest day measured in Arinos between 1940 and 2025 was 3 October 1981, with 114 mm of rain in 24 hours.
What was the windiest day in Arinos?
The windiest day measured in Arinos between 1940 and 2025 was 20 August 2022, with winds reaching 26.2 km/h.
What is the warmest month in Arinos?
The warmest month in Arinos is October (26.2 °C on average); the coldest is July (21.6 °C).
How much does it rain in Arinos?
Arinos receives on average 1,111 mm of precipitation per year, spread over about 116 rainy days.
Is it sunny in Arinos?
Arinos gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Arinos?
Yes: Arinos has on average 179 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Arinos?
In Arinos, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 13 November 2015, and the lowest was 5.4 °C on 19 May 2022.
Compare Arinos with another city
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Nearby cities
The climate around Arinos