Una climate — normals and trends
Una (Brazil) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 24.2 °C and it receives 1,316 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 (25.8 °C on average) and the coldest is July (22.0 °C). Rainfall peaks in November.
Una averages 0 frost days, 10 hot days (≥ 30 °C) and 245 rainy days per year.
Una has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.4 °C (on 3 January 2016) and the coldest 16.3 °C (on 9 August 2017).
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
UnaEstado de Bahia
- coords
- -15.29°, -39.08°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.2°C
Average daily high
26.8°C
Average daily low
22.0°C
Annual rainfall
1,316mm
Sunshine / day
10.8h
Mean relative humidity
84%
Average peak wind
15.5km/h
Seasonal range
3.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
10 d/yr
Rainy days (≥ 1 mm)
245 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.7 °C
Average feels-like low
24.7 °C
Average peak gust
30.8 km/h
Tropical nights (≥ 20 °C)
316 d/yr
Solar radiation
18.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.54 · 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
32.4 °C
3 January 2016
Coldest day
16.3 °C
9 August 2017
Wettest day
237 mm
10 November 1998
Windiest day
35.7 km/h
4 February 1980
Strongest gust
64.8 km/h
30 July 2007
Hottest feels-like
39.3 °C
10 March 1973
Coldest feels-like
15.4 °C
26 August 2020
Sunniest day
12.9 h
18 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 | 28.9 °C | +0.6 °C | 206 mm | +110 mm |
| Feb | 28.6 °C | +0.1 °C | 92 mm | -5 mm |
| Mar | 28.7 °C | +0.3 °C | 84 mm | -46 mm |
| Apr | 28.7 °C | +1.1 °C | 168 mm | +25 mm |
| May | 26.4 °C | 0.0 °C | 233 mm | +117 mm |
| Jun | 25.9 °C | +0.6 °C | 91 mm | -10 mm |
| Jul | 24.7 °C | +0.1 °C | 98 mm | -1 mm |
| Aug | 25.2 °C | +0.4 °C | 66 mm | -8 mm |
| Sep | 25.7 °C | +0.1 °C | 57 mm | -12 mm |
| Oct | 26.2 °C | -0.4 °C | 155 mm | +47 mm |
| Nov | 27.0 °C | -0.1 °C | 173 mm | +20 mm |
| Dec | 27.9 °C | +0.1 °C | 97 mm | -34 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 Una?
Una has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 24.2 °C and it receives 1,316 mm of precipitation per year.
What is the hottest day ever recorded in Una?
The hottest day measured in Una between 1940 and 2025 was 3 January 2016, reaching 32.4 °C.
What is the coldest day in Una?
The coldest day measured in Una between 1940 and 2025 was 9 August 2017, at 16.3 °C.
Does it snow in Una?
Almost never: Una sees virtually no snow, with about 0 frost days per year.
Has the climate of Una warmed?
Yes: Una warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Una?
The wettest day measured in Una between 1940 and 2025 was 10 November 1998, with 237 mm of rain in 24 hours.
What was the windiest day in Una?
The windiest day measured in Una between 1940 and 2025 was 4 February 1980, with winds reaching 35.7 km/h.
What is the warmest month in Una?
The warmest month in Una is February (25.8 °C on average); the coldest is July (22.0 °C).
How much does it rain in Una?
Una receives on average 1,316 mm of precipitation per year, spread over about 245 rainy days.
Is it sunny in Una?
Una gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Una?
Yes: Una has on average 316 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Una?
In Una, between 1940 and 2025, the highest apparent temperature reached 39.3 °C on 10 March 1973, and the lowest was 15.4 °C on 26 August 2020.
Compare Una with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Una