Goianinha climate — normals and trends
Goianinha (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.8 °C and it receives 729 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 (26.7 °C on average) and the coldest is July (24.3 °C). Rainfall peaks in April.
Goianinha averages 0 frost days, 145 hot days (≥ 30 °C) and 185 rainy days per year.
Goianinha 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 35.1 °C (on 20 March 1988) and the coldest 18.4 °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
GoianinhaRio Grande do Norte
- coords
- -6.27°, -35.21°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.8°C
Average daily high
29.5°C
Average daily low
23.0°C
Annual rainfall
729mm
Sunshine / day
11.0h
Mean relative humidity
78%
Average peak wind
19.9km/h
Seasonal range
2.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
145 d/yr
Rainy days (≥ 1 mm)
185 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.4 °C
Average feels-like low
25.9 °C
Average peak gust
42.6 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
19.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.40 · 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
35.1 °C
20 March 1988
Coldest day
18.4 °C
1 August 1986
Wettest day
139 mm
21 March 1974
Windiest day
32.7 km/h
19 August 1947
Strongest gust
65.2 km/h
19 August 1947
Hottest feels-like
41.6 °C
2 March 2024
Coldest feels-like
19.3 °C
9 July 1963
Sunniest day
12.4 h
7 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 | 31.0 °C | +0.4 °C | 74 mm | +17 mm |
| Feb | 30.3 °C | -0.2 °C | 75 mm | -2 mm |
| Mar | 30.1 °C | -0.1 °C | 104 mm | -16 mm |
| Apr | 30.8 °C | +1.2 °C | 70 mm | -54 mm |
| May | 29.6 °C | +0.5 °C | 104 mm | +13 mm |
| Jun | 28.4 °C | +0.3 °C | 96 mm | +21 mm |
| Jul | 27.3 °C | -0.4 °C | 56 mm | -8 mm |
| Aug | 28.1 °C | -0.1 °C | 56 mm | +26 mm |
| Sep | 28.7 °C | -0.3 °C | 28 mm | +5 mm |
| Oct | 29.2 °C | -0.6 °C | 21 mm | +1 mm |
| Nov | 30.0 °C | -0.3 °C | 14 mm | -5 mm |
| Dec | 30.3 °C | -0.2 °C | 16 mm | -16 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 Goianinha?
Goianinha has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.8 °C and it receives 729 mm of precipitation per year.
What is the hottest day ever recorded in Goianinha?
The hottest day measured in Goianinha between 1940 and 2025 was 20 March 1988, reaching 35.1 °C.
What is the coldest day in Goianinha?
The coldest day measured in Goianinha between 1940 and 2025 was 1 August 1986, at 18.4 °C.
Does it snow in Goianinha?
Almost never: Goianinha sees virtually no snow, with about 0 frost days per year.
Has the climate of Goianinha warmed?
Yes: Goianinha warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Goianinha?
The wettest day measured in Goianinha between 1940 and 2025 was 21 March 1974, with 139 mm of rain in 24 hours.
What was the windiest day in Goianinha?
The windiest day measured in Goianinha between 1940 and 2025 was 19 August 1947, with winds reaching 32.7 km/h.
What is the warmest month in Goianinha?
The warmest month in Goianinha is January (26.7 °C on average); the coldest is July (24.3 °C).
How much does it rain in Goianinha?
Goianinha receives on average 729 mm of precipitation per year, spread over about 185 rainy days.
Is it sunny in Goianinha?
Goianinha gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
Are there tropical nights in Goianinha?
Yes: Goianinha has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Goianinha?
In Goianinha, between 1940 and 2025, the highest apparent temperature reached 41.6 °C on 2 March 2024, and the lowest was 19.3 °C on 9 July 1963.
Compare Goianinha with another city
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Nearby cities
The climate around Goianinha