Joaçaba climate — normals and trends
Joaçaba (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.9 °C and it receives 1,722 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 (22.0 °C on average) and the coldest is July (13.2 °C). Rainfall peaks in October.
Joaçaba averages 3 frost days, 17 hot days (≥ 30 °C) and 160 rainy days per year.
Joaçaba has warmed by +0.9 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.2 °C (on 26 November 1942) and the coldest -5.8 °C (on 3 August 1991).
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
JoaçabaSanta Catarina
- coords
- -27.18°, -51.50°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.9°C
Average daily high
23.2°C
Average daily low
13.6°C
Annual rainfall
1,722mm
Sunshine / day
9.3h
Mean relative humidity
78%
Average peak wind
14.9km/h
Seasonal range
8.8°C
Frost days (< 0 °C)
3 d/yr
Hot days (≥ 30 °C)
17 d/yr
Rainy days (≥ 1 mm)
160 d/yr
Annual snowfall
0.3 cm
Average feels-like high
24.4 °C
Average feels-like low
12.9 °C
Average peak gust
34.3 km/h
Tropical nights (≥ 20 °C)
7 d/yr
Solar radiation
17.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.25 · 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
35.2 °C
26 November 1942
Coldest day
-5.8 °C
3 August 1991
Wettest day
182 mm
7 December 2024
Windiest day
52.7 km/h
15 September 1956
Strongest gust
111.6 km/h
2 July 1983
Hottest feels-like
39.7 °C
7 February 2010
Coldest feels-like
-9.7 °C
3 August 1991
Snowiest day
10.0 cm
21 August 1965
Sunniest day
13.5 h
8 December 2021
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 | 27.3 °C | +0.1 °C | 148 mm | -39 mm |
| Feb | 29.0 °C | +2.1 °C | 158 mm | -4 mm |
| Mar | 28.4 °C | +2.5 °C | 77 mm | -59 mm |
| Apr | 22.9 °C | -0.4 °C | 86 mm | -19 mm |
| May | 21.3 °C | +1.1 °C | 122 mm | +1 mm |
| Jun | 16.6 °C | -2.1 °C | 243 mm | +124 mm |
| Jul | 18.2 °C | -0.7 °C | 59 mm | -51 mm |
| Aug | 19.2 °C | -1.4 °C | 158 mm | +36 mm |
| Sep | 21.8 °C | -0.1 °C | 201 mm | +39 mm |
| Oct | 22.2 °C | -1.3 °C | 179 mm | -17 mm |
| Nov | 25.2 °C | 0.0 °C | 168 mm | +23 mm |
| Dec | 27.7 °C | +1.1 °C | 157 mm | -1 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 Joaçaba?
Joaçaba has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.9 °C and it receives 1,722 mm of precipitation per year.
What is the hottest day ever recorded in Joaçaba?
The hottest day measured in Joaçaba between 1940 and 2025 was 26 November 1942, reaching 35.2 °C.
What is the coldest day in Joaçaba?
The coldest day measured in Joaçaba between 1940 and 2025 was 3 August 1991, at -5.8 °C.
Does it snow in Joaçaba?
Almost never: Joaçaba sees virtually no snow, with about 3 frost days per year.
Has the climate of Joaçaba warmed?
Yes: Joaçaba warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Joaçaba?
The wettest day measured in Joaçaba between 1940 and 2025 was 7 December 2024, with 182 mm of rain in 24 hours.
What was the windiest day in Joaçaba?
The windiest day measured in Joaçaba between 1940 and 2025 was 15 September 1956, with winds reaching 52.7 km/h.
What is the warmest month in Joaçaba?
The warmest month in Joaçaba is January (22.0 °C on average); the coldest is July (13.2 °C).
How much does it rain in Joaçaba?
Joaçaba receives on average 1,722 mm of precipitation per year, spread over about 160 rainy days.
Is it sunny in Joaçaba?
Joaçaba gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
What is the biggest single-day snowfall in Joaçaba?
The heaviest 24-hour snowfall measured in Joaçaba between 1940 and 2025 was 21 August 1965, with 10.0 cm.
Are there tropical nights in Joaçaba?
Yes: Joaçaba has on average 7 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Joaçaba?
In Joaçaba, between 1940 and 2025, the highest apparent temperature reached 39.7 °C on 7 February 2010, and the lowest was -9.7 °C on 3 August 1991.
Compare Joaçaba with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Joaçaba