Codó climate — normals and trends
Codó (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.0 °C and it receives 1,362 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 (29.0 °C on average) and the coldest is March (25.4 °C). Rainfall peaks in March.
Codó averages 0 frost days, 285 hot days (≥ 30 °C) and 156 rainy days per year.
Codó has warmed by +0.6 °C between 1940 and 2025, or +0.07 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.6 °C (on 18 October 1958) and the coldest 17.3 °C (on 2 September 2024).
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
CodóMaranhão
- coords
- -4.46°, -43.89°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.0°C
Average daily high
32.1°C
Average daily low
22.8°C
Annual rainfall
1,362mm
Sunshine / day
10.7h
Mean relative humidity
75%
Average peak wind
10.6km/h
Seasonal range
3.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
285 d/yr
Rainy days (≥ 1 mm)
156 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.8 °C
Average feels-like low
26.5 °C
Average peak gust
30.3 km/h
Tropical nights (≥ 20 °C)
361 d/yr
Solar radiation
19.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.6 °C
since 1940
+0.1 °C per decade · r² = 0.09 · p = 0.005
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
39.6 °C
18 October 1958
Coldest day
17.3 °C
2 September 2024
Wettest day
184 mm
28 December 2005
Windiest day
26.1 km/h
16 August 1991
Strongest gust
57.2 km/h
16 August 1991
Hottest feels-like
44.1 °C
5 December 2017
Coldest feels-like
17.2 °C
3 August 2001
Sunniest day
12.0 h
2 January 1940
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 | 31.5 °C | +0.7 °C | 280 mm | +63 mm |
| Feb | 30.9 °C | +0.7 °C | 288 mm | +39 mm |
| Mar | 30.7 °C | +1.0 °C | 368 mm | +61 mm |
| Apr | 31.6 °C | +1.9 °C | 185 mm | -64 mm |
| May | 31.8 °C | +1.5 °C | 59 mm | -58 mm |
| Jun | 32.2 °C | +0.9 °C | 8 mm | -21 mm |
| Jul | 33.2 °C | +0.8 °C | 3 mm | -8 mm |
| Aug | 33.9 °C | +0.2 °C | 3 mm | -2 mm |
| Sep | 35.4 °C | +0.7 °C | 1 mm | -6 mm |
| Oct | 35.5 °C | +0.5 °C | 10 mm | -8 mm |
| Nov | 34.9 °C | +0.6 °C | 5 mm | -39 mm |
| Dec | 32.9 °C | 0.0 °C | 83 mm | -27 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 Codó?
Codó has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.0 °C and it receives 1,362 mm of precipitation per year.
What is the hottest day ever recorded in Codó?
The hottest day measured in Codó between 1940 and 2025 was 18 October 1958, reaching 39.6 °C.
What is the coldest day in Codó?
The coldest day measured in Codó between 1940 and 2025 was 2 September 2024, at 17.3 °C.
Does it snow in Codó?
Almost never: Codó sees virtually no snow, with about 0 frost days per year.
Has the climate of Codó warmed?
Yes: Codó warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Codó?
The wettest day measured in Codó between 1940 and 2025 was 28 December 2005, with 184 mm of rain in 24 hours.
What was the windiest day in Codó?
The windiest day measured in Codó between 1940 and 2025 was 16 August 1991, with winds reaching 26.1 km/h.
What is the warmest month in Codó?
The warmest month in Codó is October (29.0 °C on average); the coldest is March (25.4 °C).
How much does it rain in Codó?
Codó receives on average 1,362 mm of precipitation per year, spread over about 156 rainy days.
Is it sunny in Codó?
Codó gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
Are there tropical nights in Codó?
Yes: Codó has on average 361 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Codó?
In Codó, between 1940 and 2025, the highest apparent temperature reached 44.1 °C on 5 December 2017, and the lowest was 17.2 °C on 3 August 2001.
Compare Codó with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Codó