Assis climate — normals and trends
Assis (Brazil) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 22.3 °C and it receives 1,443 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 January (24.8 °C on average) and the coldest is July (18.5 °C). Rainfall peaks in January.
Assis averages 0 frost days, 102 hot days (≥ 30 °C) and 145 rainy days per year.
Assis has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.8 °C (on 6 October 2020) and the coldest 1.1 °C (on 18 July 1975).
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
AssisSão Paulo
- coords
- -22.66°, -50.41°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.3°C
Average daily high
27.7°C
Average daily low
18.0°C
Annual rainfall
1,443mm
Sunshine / day
9.8h
Mean relative humidity
73%
Average peak wind
14.3km/h
Seasonal range
6.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
102 d/yr
Rainy days (≥ 1 mm)
145 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.1 °C
Average feels-like low
18.6 °C
Average peak gust
31.6 km/h
Tropical nights (≥ 20 °C)
131 d/yr
Solar radiation
17.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.60 · 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
41.8 °C
6 October 2020
Coldest day
1.1 °C
18 July 1975
Wettest day
129 mm
2 December 1977
Windiest day
41.7 km/h
15 September 1956
Strongest gust
90.7 km/h
22 September 2025
Hottest feels-like
43.7 °C
17 October 2014
Coldest feels-like
-3.3 °C
18 July 1975
Sunniest day
13.2 h
3 December 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 | 32.0 °C | +2.6 °C | 120 mm | -105 mm |
| Feb | 32.3 °C | +2.9 °C | 137 mm | -63 mm |
| Mar | 32.4 °C | +3.2 °C | 87 mm | -56 mm |
| Apr | 27.8 °C | 0.0 °C | 115 mm | +42 mm |
| May | 27.1 °C | +2.0 °C | 27 mm | -50 mm |
| Jun | 24.2 °C | +0.1 °C | 62 mm | +3 mm |
| Jul | 25.0 °C | +0.5 °C | 3 mm | -43 mm |
| Aug | 28.1 °C | +1.2 °C | 2 mm | -41 mm |
| Sep | 32.0 °C | +3.6 °C | 14 mm | -69 mm |
| Oct | 29.2 °C | +0.4 °C | 110 mm | -29 mm |
| Nov | 29.1 °C | -0.1 °C | 132 mm | -16 mm |
| Dec | 30.8 °C | +1.6 °C | 215 mm | +10 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 Assis?
Assis has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 22.3 °C and it receives 1,443 mm of precipitation per year.
What is the hottest day ever recorded in Assis?
The hottest day measured in Assis between 1940 and 2025 was 6 October 2020, reaching 41.8 °C.
What is the coldest day in Assis?
The coldest day measured in Assis between 1940 and 2025 was 18 July 1975, at 1.1 °C.
Does it snow in Assis?
Almost never: Assis sees virtually no snow, with about 0 frost days per year.
Has the climate of Assis warmed?
Yes: Assis warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Assis?
The wettest day measured in Assis between 1940 and 2025 was 2 December 1977, with 129 mm of rain in 24 hours.
What was the windiest day in Assis?
The windiest day measured in Assis between 1940 and 2025 was 15 September 1956, with winds reaching 41.7 km/h.
What is the warmest month in Assis?
The warmest month in Assis is January (24.8 °C on average); the coldest is July (18.5 °C).
How much does it rain in Assis?
Assis receives on average 1,443 mm of precipitation per year, spread over about 145 rainy days.
Is it sunny in Assis?
Assis gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
Are there tropical nights in Assis?
Yes: Assis has on average 131 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Assis?
In Assis, between 1940 and 2025, the highest apparent temperature reached 43.7 °C on 17 October 2014, and the lowest was -3.3 °C on 18 July 1975.
Compare Assis with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Assis