Bissāu climate — normals and trends
Bissāu (India) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 25.9 °C and it receives 371 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 June (34.7 °C on average) and the coldest is January (14.0 °C). Rainfall peaks in July.
Bissāu averages 0 frost days, 238 hot days (≥ 30 °C) and 53 rainy days per year.
Bissāu 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 48.7 °C (on 28 May 2024) and the coldest -0.4 °C (on 11 January 1945).
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
BissāuRajasthan
- coords
- 28.25°, 75.08°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.9°C
Average daily high
32.2°C
Average daily low
20.1°C
Annual rainfall
371mm
Sunshine / day
10.8h
Mean relative humidity
47%
Average peak wind
19.2km/h
Seasonal range
20.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
238 d/yr
Rainy days (≥ 1 mm)
53 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.9 °C
Average feels-like low
19.5 °C
Average peak gust
32.5 km/h
Tropical nights (≥ 20 °C)
204 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 = 0.14 · 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
48.7 °C
28 May 2024
Coldest day
-0.4 °C
11 January 1945
Wettest day
173 mm
19 July 1999
Windiest day
50.0 km/h
12 April 1955
Strongest gust
80.3 km/h
12 April 1955
Hottest feels-like
49.2 °C
7 June 2018
Coldest feels-like
-4.8 °C
13 January 1967
Sunniest day
13.5 h
9 June 1945
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 | 20.2 °C | -0.4 °C | 20 mm | +6 mm |
| Feb | 26.8 °C | +2.0 °C | 12 mm | -0 mm |
| Mar | 33.0 °C | +1.7 °C | 3 mm | -4 mm |
| Apr | 40.8 °C | +3.3 °C | 1 mm | -4 mm |
| May | 40.6 °C | -0.4 °C | 9 mm | -4 mm |
| Jun | 38.2 °C | -2.0 °C | 102 mm | +67 mm |
| Jul | 32.9 °C | -2.8 °C | 179 mm | +66 mm |
| Aug | 33.4 °C | -0.6 °C | 219 mm | +113 mm |
| Sep | 34.9 °C | -0.3 °C | 75 mm | +29 mm |
| Oct | 31.7 °C | -2.5 °C | 20 mm | +10 mm |
| Nov | 28.2 °C | -0.4 °C | 0 mm | -4 mm |
| Dec | 24.4 °C | +1.6 °C | 0 mm | -6 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 Bissāu?
Bissāu has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 25.9 °C and it receives 371 mm of precipitation per year.
What is the hottest day ever recorded in Bissāu?
The hottest day measured in Bissāu between 1940 and 2025 was 28 May 2024, reaching 48.7 °C.
What is the coldest day in Bissāu?
The coldest day measured in Bissāu between 1940 and 2025 was 11 January 1945, at -0.4 °C.
Does it snow in Bissāu?
Almost never: Bissāu sees virtually no snow, with about 0 frost days per year.
Has the climate of Bissāu warmed?
Yes: Bissāu warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bissāu?
The wettest day measured in Bissāu between 1940 and 2025 was 19 July 1999, with 173 mm of rain in 24 hours.
What was the windiest day in Bissāu?
The windiest day measured in Bissāu between 1940 and 2025 was 12 April 1955, with winds reaching 50.0 km/h.
What is the warmest month in Bissāu?
The warmest month in Bissāu is June (34.7 °C on average); the coldest is January (14.0 °C).
How much does it rain in Bissāu?
Bissāu receives on average 371 mm of precipitation per year, spread over about 53 rainy days.
Is it sunny in Bissāu?
Bissāu gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Bissāu?
Yes: Bissāu has on average 204 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bissāu?
In Bissāu, between 1940 and 2025, the highest apparent temperature reached 49.2 °C on 7 June 2018, and the lowest was -4.8 °C on 13 January 1967.
Compare Bissāu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bissāu