Rio Negrinho climate — normals and trends
Rio Negrinho (Brazil) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 16.8 °C and it receives 1,659 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 (20.4 °C on average) and the coldest is July (12.9 °C). Rainfall peaks in January.
Rio Negrinho averages 2 frost days, 5 hot days (≥ 30 °C) and 178 rainy days per year.
Rio Negrinho has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The number of frost days there went from about 1 to 3 per year over the period.
The hottest day of the period reached 34.1 °C (on 7 February 2014) and the coldest -6.2 °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
Rio NegrinhoSanta Catarina
- coords
- -26.25°, -49.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.8°C
Average daily high
21.6°C
Average daily low
13.2°C
Annual rainfall
1,659mm
Sunshine / day
7.5h
Mean relative humidity
85%
Average peak wind
15.5km/h
Seasonal range
7.5°C
Frost days (< 0 °C)
2 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
178 d/yr
Annual snowfall
0.1 cm
Average feels-like high
22.4 °C
Average feels-like low
12.6 °C
Average peak gust
34.5 km/h
Tropical nights (≥ 20 °C)
3 d/yr
Solar radiation
14.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.37 · 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
34.1 °C
7 February 2014
Coldest day
-6.2 °C
18 July 1975
Wettest day
122 mm
9 February 1966
Windiest day
45.2 km/h
23 October 2012
Strongest gust
109.1 km/h
19 September 2012
Hottest feels-like
38.8 °C
28 February 2003
Coldest feels-like
-10.4 °C
18 July 1975
Snowiest day
3.9 cm
23 July 2013
Sunniest day
13.6 h
11 December 2025
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 | 25.3 °C | +0.2 °C | 162 mm | -41 mm |
| Feb | 27.3 °C | +2.2 °C | 204 mm | +24 mm |
| Mar | 26.1 °C | +2.0 °C | 118 mm | -24 mm |
| Apr | 21.8 °C | -0.1 °C | 73 mm | -20 mm |
| May | 20.5 °C | +1.2 °C | 82 mm | -19 mm |
| Jun | 17.2 °C | -0.8 °C | 170 mm | +64 mm |
| Jul | 17.2 °C | -0.7 °C | 25 mm | -71 mm |
| Aug | 18.4 °C | -1.0 °C | 78 mm | -28 mm |
| Sep | 20.4 °C | +0.2 °C | 128 mm | -28 mm |
| Oct | 20.0 °C | -1.3 °C | 184 mm | +11 mm |
| Nov | 22.9 °C | 0.0 °C | 193 mm | +55 mm |
| Dec | 27.2 °C | +3.0 °C | 160 mm | -7 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 Rio Negrinho?
Rio Negrinho has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 16.8 °C and it receives 1,659 mm of precipitation per year.
What is the hottest day ever recorded in Rio Negrinho?
The hottest day measured in Rio Negrinho between 1940 and 2025 was 7 February 2014, reaching 34.1 °C.
What is the coldest day in Rio Negrinho?
The coldest day measured in Rio Negrinho between 1940 and 2025 was 18 July 1975, at -6.2 °C.
Does it snow in Rio Negrinho?
Almost never: Rio Negrinho sees virtually no snow, with about 2 frost days per year.
Has the climate of Rio Negrinho warmed?
Yes: Rio Negrinho warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rio Negrinho?
The wettest day measured in Rio Negrinho between 1940 and 2025 was 9 February 1966, with 122 mm of rain in 24 hours.
What was the windiest day in Rio Negrinho?
The windiest day measured in Rio Negrinho between 1940 and 2025 was 23 October 2012, with winds reaching 45.2 km/h.
What is the warmest month in Rio Negrinho?
The warmest month in Rio Negrinho is February (20.4 °C on average); the coldest is July (12.9 °C).
How much does it rain in Rio Negrinho?
Rio Negrinho receives on average 1,659 mm of precipitation per year, spread over about 178 rainy days.
Is it sunny in Rio Negrinho?
Rio Negrinho gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Rio Negrinho?
The heaviest 24-hour snowfall measured in Rio Negrinho between 1940 and 2025 was 23 July 2013, with 3.9 cm.
Are there tropical nights in Rio Negrinho?
Yes: Rio Negrinho has on average 3 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rio Negrinho?
In Rio Negrinho, between 1940 and 2025, the highest apparent temperature reached 38.8 °C on 28 February 2003, and the lowest was -10.4 °C on 18 July 1975.
Compare Rio Negrinho with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rio Negrinho