Ceará-Mirim climate — normals and trends
Ceará-Mirim (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.0 °C and it receives 669 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 (26.8 °C on average) and the coldest is July (24.6 °C). Rainfall peaks in March.
Ceará-Mirim averages 0 frost days, 183 hot days (≥ 30 °C) and 160 rainy days per year.
Ceará-Mirim has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.8 °C (on 12 February 1958) and the coldest 18.5 °C (on 1 August 1986).
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
Ceará-MirimRio Grande do Norte
- coords
- -5.63°, -35.43°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.0°C
Average daily high
29.9°C
Average daily low
23.0°C
Annual rainfall
669mm
Sunshine / day
11.1h
Mean relative humidity
77%
Average peak wind
20.8km/h
Seasonal range
2.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
183 d/yr
Rainy days (≥ 1 mm)
160 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.6 °C
Average feels-like low
25.7 °C
Average peak gust
44.5 km/h
Tropical nights (≥ 20 °C)
363 d/yr
Solar radiation
20.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °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
34.8 °C
12 February 1958
Coldest day
18.5 °C
1 August 1986
Wettest day
130 mm
5 May 2004
Windiest day
33.3 km/h
25 October 2025
Strongest gust
66.2 km/h
30 September 1966
Hottest feels-like
41.2 °C
2 March 2024
Coldest feels-like
18.9 °C
5 August 1974
Sunniest day
12.3 h
6 January 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 | 31.4 °C | +0.5 °C | 74 mm | +16 mm |
| Feb | 31.0 °C | +0.3 °C | 77 mm | -3 mm |
| Mar | 30.5 °C | +0.2 °C | 117 mm | -9 mm |
| Apr | 31.4 °C | +1.6 °C | 52 mm | -70 mm |
| May | 30.0 °C | +0.6 °C | 86 mm | +1 mm |
| Jun | 28.8 °C | +0.3 °C | 100 mm | +41 mm |
| Jul | 27.8 °C | -0.4 °C | 52 mm | +6 mm |
| Aug | 28.8 °C | -0.1 °C | 31 mm | +12 mm |
| Sep | 29.4 °C | -0.3 °C | 20 mm | +5 mm |
| Oct | 29.9 °C | -0.5 °C | 12 mm | -2 mm |
| Nov | 30.5 °C | -0.2 °C | 11 mm | -5 mm |
| Dec | 30.6 °C | -0.3 °C | 13 mm | -15 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 Ceará-Mirim?
Ceará-Mirim has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.0 °C and it receives 669 mm of precipitation per year.
What is the hottest day ever recorded in Ceará-Mirim?
The hottest day measured in Ceará-Mirim between 1940 and 2025 was 12 February 1958, reaching 34.8 °C.
What is the coldest day in Ceará-Mirim?
The coldest day measured in Ceará-Mirim between 1940 and 2025 was 1 August 1986, at 18.5 °C.
Does it snow in Ceará-Mirim?
Almost never: Ceará-Mirim sees virtually no snow, with about 0 frost days per year.
Has the climate of Ceará-Mirim warmed?
Yes: Ceará-Mirim warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ceará-Mirim?
The wettest day measured in Ceará-Mirim between 1940 and 2025 was 5 May 2004, with 130 mm of rain in 24 hours.
What was the windiest day in Ceará-Mirim?
The windiest day measured in Ceará-Mirim between 1940 and 2025 was 25 October 2025, with winds reaching 33.3 km/h.
What is the warmest month in Ceará-Mirim?
The warmest month in Ceará-Mirim is January (26.8 °C on average); the coldest is July (24.6 °C).
How much does it rain in Ceará-Mirim?
Ceará-Mirim receives on average 669 mm of precipitation per year, spread over about 160 rainy days.
Is it sunny in Ceará-Mirim?
Ceará-Mirim gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.
Are there tropical nights in Ceará-Mirim?
Yes: Ceará-Mirim has on average 363 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ceará-Mirim?
In Ceará-Mirim, between 1940 and 2025, the highest apparent temperature reached 41.2 °C on 2 March 2024, and the lowest was 18.9 °C on 5 August 1974.
Compare Ceará-Mirim with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ceará-Mirim