Bignona climate — normals and trends
Bignona (Senegal) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.1 °C and it receives 1,262 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 May (28.5 °C on average) and the coldest is January (25.4 °C). Rainfall peaks in August.
Bignona averages 0 frost days, 314 hot days (≥ 30 °C) and 110 rainy days per year.
Bignona has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 44.6 °C (on 19 April 2024) and the coldest 13.6 °C (on 21 January 2009).
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
BignonaZiguinchor
- coords
- 12.81°, -16.23°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.1°C
Average daily high
33.7°C
Average daily low
22.1°C
Annual rainfall
1,262mm
Sunshine / day
10.4h
Mean relative humidity
62%
Average peak wind
13.2km/h
Seasonal range
3.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
314 d/yr
Rainy days (≥ 1 mm)
110 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.5 °C
Average feels-like low
24.1 °C
Average peak gust
30.4 km/h
Tropical nights (≥ 20 °C)
292 d/yr
Solar radiation
20.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.62 · 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
44.6 °C
19 April 2024
Coldest day
13.6 °C
21 January 2009
Wettest day
197 mm
5 September 1961
Windiest day
33.0 km/h
5 September 1961
Strongest gust
61.2 km/h
13 February 2005
Hottest feels-like
45.9 °C
5 May 2025
Coldest feels-like
9.6 °C
10 January 1965
Sunniest day
12.1 h
27 June 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 | 34.6 °C | +1.1 °C | 0 mm | -1 mm |
| Feb | 35.7 °C | +0.2 °C | 0 mm | -1 mm |
| Mar | 37.2 °C | 0.0 °C | 0 mm | -0 mm |
| Apr | 38.2 °C | +0.5 °C | 0 mm | +0 mm |
| May | 37.8 °C | +0.9 °C | 4 mm | +1 mm |
| Jun | 35.1 °C | +1.0 °C | 39 mm | -34 mm |
| Jul | 31.3 °C | +0.7 °C | 274 mm | -8 mm |
| Aug | 30.3 °C | +0.5 °C | 630 mm | +223 mm |
| Sep | 31.3 °C | +0.8 °C | 366 mm | +29 mm |
| Oct | 33.4 °C | +1.3 °C | 84 mm | -59 mm |
| Nov | 34.2 °C | +0.5 °C | 19 mm | +4 mm |
| Dec | 32.9 °C | -0.2 °C | 1 mm | -2 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 Bignona?
Bignona has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 1,262 mm of precipitation per year.
What is the hottest day ever recorded in Bignona?
The hottest day measured in Bignona between 1940 and 2025 was 19 April 2024, reaching 44.6 °C.
What is the coldest day in Bignona?
The coldest day measured in Bignona between 1940 and 2025 was 21 January 2009, at 13.6 °C.
Does it snow in Bignona?
Almost never: Bignona sees virtually no snow, with about 0 frost days per year.
Has the climate of Bignona warmed?
Yes: Bignona warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bignona?
The wettest day measured in Bignona between 1940 and 2025 was 5 September 1961, with 197 mm of rain in 24 hours.
What was the windiest day in Bignona?
The windiest day measured in Bignona between 1940 and 2025 was 5 September 1961, with winds reaching 33.0 km/h.
What is the warmest month in Bignona?
The warmest month in Bignona is May (28.5 °C on average); the coldest is January (25.4 °C).
How much does it rain in Bignona?
Bignona receives on average 1,262 mm of precipitation per year, spread over about 110 rainy days.
Is it sunny in Bignona?
Bignona gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
Are there tropical nights in Bignona?
Yes: Bignona has on average 292 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bignona?
In Bignona, between 1940 and 2025, the highest apparent temperature reached 45.9 °C on 5 May 2025, and the lowest was 9.6 °C on 10 January 1965.
Compare Bignona with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bignona