Boa Viagem climate — normals and trends
Boa Viagem (Brazil) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 26.3 °C and it receives 585 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 November (27.6 °C on average) and the coldest is June (25.1 °C). Rainfall peaks in March.
Boa Viagem averages 0 frost days, 264 hot days (≥ 30 °C) and 112 rainy days per year.
Boa Viagem has warmed by +0.7 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.5 °C (on 27 February 1984) and the coldest 16.2 °C (on 4 July 1974).
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
Boa ViagemCeará
- coords
- -5.13°, -39.73°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.3°C
Average daily high
31.5°C
Average daily low
21.8°C
Annual rainfall
585mm
Sunshine / day
10.8h
Mean relative humidity
66%
Average peak wind
19.4km/h
Seasonal range
2.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
264 d/yr
Rainy days (≥ 1 mm)
112 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.0 °C
Average feels-like low
23.9 °C
Average peak gust
39.6 km/h
Tropical nights (≥ 20 °C)
349 d/yr
Solar radiation
20.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.7 °C
since 1940
+0.1 °C per decade · r² = 0.13 · 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
37.5 °C
27 February 1984
Coldest day
16.2 °C
4 July 1974
Wettest day
127 mm
24 January 2004
Windiest day
34.5 km/h
4 July 2017
Strongest gust
62.6 km/h
1 September 2010
Hottest feels-like
39.7 °C
7 April 2013
Coldest feels-like
15.1 °C
4 July 1974
Sunniest day
12.3 h
26 November 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 | 31.8 °C | -0.4 °C | 137 mm | +64 mm |
| Feb | 31.1 °C | -0.1 °C | 96 mm | +7 mm |
| Mar | 29.5 °C | -0.6 °C | 94 mm | -47 mm |
| Apr | 30.5 °C | +0.9 °C | 37 mm | -81 mm |
| May | 30.3 °C | +0.7 °C | 69 mm | -2 mm |
| Jun | 30.1 °C | +0.4 °C | 18 mm | -14 mm |
| Jul | 31.4 °C | +1.0 °C | 9 mm | -7 mm |
| Aug | 32.3 °C | +0.5 °C | 4 mm | -2 mm |
| Sep | 33.4 °C | +0.5 °C | 2 mm | -2 mm |
| Oct | 34.2 °C | +0.5 °C | 1 mm | -4 mm |
| Nov | 33.9 °C | +0.3 °C | 3 mm | -4 mm |
| Dec | 33.0 °C | -0.2 °C | 17 mm | -8 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 Boa Viagem?
Boa Viagem has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 26.3 °C and it receives 585 mm of precipitation per year.
What is the hottest day ever recorded in Boa Viagem?
The hottest day measured in Boa Viagem between 1940 and 2025 was 27 February 1984, reaching 37.5 °C.
What is the coldest day in Boa Viagem?
The coldest day measured in Boa Viagem between 1940 and 2025 was 4 July 1974, at 16.2 °C.
Does it snow in Boa Viagem?
Almost never: Boa Viagem sees virtually no snow, with about 0 frost days per year.
Has the climate of Boa Viagem warmed?
Yes: Boa Viagem warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Boa Viagem?
The wettest day measured in Boa Viagem between 1940 and 2025 was 24 January 2004, with 127 mm of rain in 24 hours.
What was the windiest day in Boa Viagem?
The windiest day measured in Boa Viagem between 1940 and 2025 was 4 July 2017, with winds reaching 34.5 km/h.
What is the warmest month in Boa Viagem?
The warmest month in Boa Viagem is November (27.6 °C on average); the coldest is June (25.1 °C).
How much does it rain in Boa Viagem?
Boa Viagem receives on average 585 mm of precipitation per year, spread over about 112 rainy days.
Is it sunny in Boa Viagem?
Boa Viagem gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Boa Viagem?
Yes: Boa Viagem has on average 349 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Boa Viagem?
In Boa Viagem, between 1940 and 2025, the highest apparent temperature reached 39.7 °C on 7 April 2013, and the lowest was 15.1 °C on 4 July 1974.
Compare Boa Viagem with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Boa Viagem