Bam climate — normals and trends
Bam (Iran) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 19.9 °C and it receives 128 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 July (30.7 °C on average) and the coldest is January (7.7 °C). Rainfall peaks in January.
Bam averages 12 frost days, 142 hot days (≥ 30 °C) and 25 rainy days per year.
Bam has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.6 °C (on 4 July 2024) and the coldest -13.0 °C (on 27 December 1972).
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
BamKerman
- coords
- 29.11°, 58.36°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.9°C
Average daily high
25.3°C
Average daily low
14.5°C
Annual rainfall
128mm
Sunshine / day
11.3h
Mean relative humidity
31%
Average peak wind
13.4km/h
Seasonal range
23.0°C
Frost days (< 0 °C)
12 d/yr
Hot days (≥ 30 °C)
142 d/yr
Rainy days (≥ 1 mm)
25 d/yr
Annual snowfall
9.3 cm
Average feels-like high
22.9 °C
Average feels-like low
11.3 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
126 d/yr
Solar radiation
21.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.45 · 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
42.6 °C
4 July 2024
Coldest day
-13.0 °C
27 December 1972
Wettest day
169 mm
28 July 2022
Windiest day
42.5 km/h
16 March 2007
Strongest gust
106.9 km/h
13 March 2021
Hottest feels-like
42.6 °C
2 July 2023
Coldest feels-like
-17.6 °C
27 December 1972
Snowiest day
20.9 cm
11 March 2015
Sunniest day
13.5 h
3 June 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 | 12.4 °C | -0.6 °C | 38 mm | +9 mm |
| Feb | 16.7 °C | +1.2 °C | 13 mm | -12 mm |
| Mar | 21.7 °C | +1.5 °C | 11 mm | -13 mm |
| Apr | 31.1 °C | +5.3 °C | 0 mm | -15 mm |
| May | 35.0 °C | +3.8 °C | 0 mm | -5 mm |
| Jun | 36.0 °C | +0.9 °C | 0 mm | -1 mm |
| Jul | 37.4 °C | +1.8 °C | 1 mm | -4 mm |
| Aug | 35.4 °C | +1.4 °C | 0 mm | -1 mm |
| Sep | 34.4 °C | +2.9 °C | 0 mm | -1 mm |
| Oct | 29.4 °C | +2.7 °C | 0 mm | -2 mm |
| Nov | 21.6 °C | +1.5 °C | 0 mm | -5 mm |
| Dec | 16.2 °C | +1.1 °C | 92 mm | +76 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 Bam?
Bam has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 19.9 °C and it receives 128 mm of precipitation per year.
What is the hottest day ever recorded in Bam?
The hottest day measured in Bam between 1940 and 2025 was 4 July 2024, reaching 42.6 °C.
What is the coldest day in Bam?
The coldest day measured in Bam between 1940 and 2025 was 27 December 1972, at -13.0 °C.
Does it snow in Bam?
Yes. Bam gets on average 9.3 cm of snow per year and has around 12 frost days.
Has the climate of Bam warmed?
Yes: Bam warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bam?
The wettest day measured in Bam between 1940 and 2025 was 28 July 2022, with 169 mm of rain in 24 hours.
What was the windiest day in Bam?
The windiest day measured in Bam between 1940 and 2025 was 16 March 2007, with winds reaching 42.5 km/h.
What is the warmest month in Bam?
The warmest month in Bam is July (30.7 °C on average); the coldest is January (7.7 °C).
How much does it rain in Bam?
Bam receives on average 128 mm of precipitation per year, spread over about 25 rainy days.
Is it sunny in Bam?
Bam gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.
What is the biggest single-day snowfall in Bam?
The heaviest 24-hour snowfall measured in Bam between 1940 and 2025 was 11 March 2015, with 20.9 cm.
Are there tropical nights in Bam?
Yes: Bam has on average 126 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bam?
In Bam, between 1940 and 2025, the highest apparent temperature reached 42.6 °C on 2 July 2023, and the lowest was -17.6 °C on 27 December 1972.
Compare Bam with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bam