Bandar-e Deyr climate — normals and trends

Q: What is the climate of Bandar-e Deyr?

Bandar-e Deyr has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 25.7 °C and it receives 220 mm of precipitation per year.

Q: What is the hottest day ever recorded in Bandar-e Deyr?

The hottest day measured in Bandar-e Deyr between 1940 and 2025 was 1 September 2001, reaching 41.4 °C.

Q: What is the coldest day in Bandar-e Deyr?

The coldest day measured in Bandar-e Deyr between 1940 and 2025 was 20 January 1964, at 3.3 °C.

Q: Does it snow in Bandar-e Deyr?

Almost never: Bandar-e Deyr sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Bandar-e Deyr warmed?

Yes: Bandar-e Deyr warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Bandar-e Deyr?

The wettest day measured in Bandar-e Deyr between 1940 and 2025 was 14 December 1953, with 145 mm of rain in 24 hours.

Q: What was the windiest day in Bandar-e Deyr?

The windiest day measured in Bandar-e Deyr between 1940 and 2025 was 7 March 1954, with winds reaching 51.4 km/h.

Q: What is the warmest month in Bandar-e Deyr?

The warmest month in Bandar-e Deyr is August (33.3 °C on average); the coldest is January (16.7 °C).

Q: How much does it rain in Bandar-e Deyr?

Bandar-e Deyr receives on average 220 mm of precipitation per year, spread over about 21 rainy days.

Q: Is it sunny in Bandar-e Deyr?

Bandar-e Deyr gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.

Bandar-e Deyr (Iran) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 25.7 °C and it receives 220 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 August (33.3 °C on average) and the coldest is January (16.7 °C). Rainfall peaks in December.

Bandar-e Deyr averages 0 frost days, 167 hot days (≥ 30 °C) and 21 rainy days per year.

Bandar-e Deyr 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 41.4 °C (on 1 September 2001) and the coldest 3.3 °C (on 20 January 1964).

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

Bandar-e DeyrBushehr

coords: 27.84°, 51.94°
period: 1940–2025 · 86 yrs

BWhHot desertWarmest monthAugustColdest monthJanuaryWettest monthDecemberDriest monthJune

Mean daily temperature

25.7°C

Average daily high

27.8°C

Average daily low

23.6°C

Annual rainfall

220mm

Sunshine / day

11.2h

Mean relative humidity

59%

Average peak wind

20.3km/h

Seasonal range

16.6°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

167 d/yr

Rainy days (≥ 1 mm)

21 d/yr

Annual snowfall

0.0 cm

Average feels-like high

29.4 °C

Average feels-like low

24.3 °C

Average peak gust

32.4 km/h

Tropical nights (≥ 20 °C)

243 d/yr

Solar radiation

21.2 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.3 °C

since 1940

+0.2 °C per decade · r² = 0.33 · p = < 0.001

19402025

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

41.4 °C

1 September 2001

Coldest day

3.3 °C

20 January 1964

Wettest day

145 mm

14 December 1953

Windiest day

51.4 km/h

7 March 1954

Strongest gust

78.8 km/h

7 March 1954

Hottest feels-like

46.4 °C

11 August 2022

Coldest feels-like

-4.4 °C

20 January 1964

Sunniest day

13.0 h

26 April 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	40.2 °C17 June 2025	10.3 °C26 February 2025	26.8 °C	237 mm	185
2024	39.3 °C25 June 2024	12.8 °C3 February 2024	26.9 °C	134 mm	179
2023	38.9 °C23 August 2023	12.2 °C10 February 2023	26.9 °C	168 mm	178
2022	39.5 °C26 June 2022	9.2 °C22 January 2022	26.8 °C	235 mm	176
2021	39.2 °C25 August 2021	12.2 °C22 January 2021	27.3 °C	51 mm	180
2020	40.3 °C4 June 2020	9.0 °C13 February 2020	26.5 °C	211 mm	176
2019	40.5 °C17 June 2019	10.7 °C20 January 2019	26.4 °C	394 mm	174
2018	39.5 °C15 July 2018	12.8 °C1 February 2018	26.8 °C	106 mm	172
2017	39.0 °C17 June 2017	6.7 °C3 February 2017	26.8 °C	329 mm	188
2016	38.4 °C11 July 2016	9.9 °C30 January 2016	26.5 °C	99 mm	173
2015	40.2 °C17 July 2015	10.2 °C23 February 2015	26.6 °C	134 mm	180
2014	39.1 °C22 July 2014	10.2 °C6 February 2014	26.1 °C	191 mm	176
2013	37.7 °C26 July 2013	10.1 °C12 January 2013	25.9 °C	97 mm	156
2012	39.3 °C4 July 2012	6.9 °C22 January 2012	26.1 °C	105 mm	176
2011	39.0 °C9 June 2011	11.0 °C4 February 2011	26.2 °C	183 mm	169
2010	38.6 °C21 June 2010	10.8 °C8 February 2010	27.1 °C	17 mm	171
2009	39.1 °C6 August 2009	10.3 °C3 January 2009	26.1 °C	197 mm	169
2008	39.2 °C17 July 2008	9.0 °C7 January 2008	26.0 °C	167 mm	177
2007	39.0 °C13 July 2007	9.3 °C1 January 2007	26.3 °C	84 mm	191
2006	38.3 °C16 July 2006	9.4 °C31 December 2006	26.2 °C	251 mm	191
2005	39.3 °C4 August 2005	10.2 °C11 February 2005	25.8 °C	138 mm	165
2004	38.1 °C6 July 2004	11.5 °C19 December 2004	26.3 °C	260 mm	176
2003	38.5 °C4 July 2003	12.0 °C18 January 2003	26.1 °C	172 mm	170
2002	38.0 °C5 August 2002	11.6 °C14 January 2002	26.4 °C	182 mm	182
2001	41.4 °C1 September 2001	9.9 °C28 January 2001	26.6 °C	78 mm	186
2000	38.1 °C12 July 2000	11.8 °C30 January 2000	26.2 °C	191 mm	193
1999	40.2 °C9 August 1999	13.4 °C27 January 1999	26.8 °C	176 mm	191
1998	39.3 °C8 July 1998	8.5 °C15 January 1998	26.7 °C	221 mm	168
1997	40.0 °C29 June 1997	10.7 °C7 February 1997	25.3 °C	378 mm	157
1996	40.5 °C12 July 1996	11.9 °C14 January 1996	25.9 °C	297 mm	164
1995	37.0 °C7 August 1995	12.1 °C12 February 1995	25.3 °C	294 mm	164
1994	37.5 °C2 June 1994	10.8 °C8 December 1994	25.7 °C	89 mm	164
1993	39.8 °C2 August 1993	9.2 °C18 January 1993	25.5 °C	186 mm	168
1992	38.2 °C12 August 1992	7.6 °C6 January 1992	24.3 °C	330 mm	153
1991	38.2 °C17 August 1991	10.3 °C11 February 1991	25.1 °C	342 mm	158
1990	39.9 °C28 July 1990	10.8 °C12 January 1990	26.0 °C	68 mm	174
1989	38.1 °C29 July 1989	8.8 °C6 January 1989	25.3 °C	203 mm	159
1988	39.3 °C1 August 1988	9.4 °C20 January 1988	26.1 °C	204 mm	185
1987	38.5 °C12 August 1987	11.6 °C1 January 1987	26.0 °C	55 mm	164
1986	37.9 °C26 July 1986	9.1 °C22 January 1986	25.5 °C	318 mm	169
1985	38.1 °C3 July 1985	9.2 °C7 February 1985	25.6 °C	111 mm	161
1984	37.6 °C17 July 1984	10.8 °C1 February 1984	25.3 °C	107 mm	156
1983	37.9 °C23 July 1983	8.3 °C30 January 1983	24.6 °C	98 mm	154
1982	37.9 °C27 July 1982	9.4 °C19 February 1982	24.6 °C	322 mm	168
1981	38.7 °C22 August 1981	10.8 °C4 February 1981	25.9 °C	73 mm	163
1980	40.0 °C26 July 1980	8.8 °C1 February 1980	25.7 °C	206 mm	162
1979	39.0 °C10 June 1979	11.6 °C13 January 1979	25.9 °C	332 mm	167
1978	38.0 °C2 August 1978	11.9 °C15 January 1978	25.4 °C	176 mm	161
1977	37.6 °C21 July 1977	8.7 °C10 January 1977	25.3 °C	271 mm	170
1976	37.6 °C15 August 1976	9.6 °C3 March 1976	24.9 °C	328 mm	166
1975	38.5 °C17 July 1975	7.7 °C13 February 1975	25.3 °C	161 mm	157
1974	39.0 °C26 August 1974	8.4 °C25 January 1974	25.1 °C	346 mm	153
1973	37.3 °C31 July 1973	8.8 °C20 January 1973	25.6 °C	69 mm	175
1972	38.9 °C20 August 1972	9.9 °C1 January 1972	24.6 °C	309 mm	150
1971	37.8 °C10 August 1971	9.4 °C15 February 1971	25.4 °C	121 mm	168
1970	39.7 °C5 August 1970	10.5 °C29 January 1970	25.8 °C	136 mm	162
1969	38.1 °C22 July 1969	9.4 °C1 February 1969	25.7 °C	251 mm	166
1968	37.7 °C2 August 1968	9.0 °C19 January 1968	25.1 °C	364 mm	151
1967	38.0 °C30 July 1967	7.5 °C23 January 1967	25.1 °C	101 mm	164
1966	38.0 °C15 June 1966	13.1 °C15 January 1966	26.0 °C	108 mm	160
1965	37.4 °C16 July 1965	11.2 °C22 December 1965	25.5 °C	209 mm	172
1964	38.0 °C6 August 1964	3.3 °C20 January 1964	25.1 °C	358 mm	160
1963	38.2 °C10 August 1963	10.3 °C28 December 1963	25.8 °C	269 mm	151
1962	39.4 °C4 August 1962	12.2 °C24 January 1962	26.2 °C	42 mm	170
1961	38.6 °C20 July 1961	11.4 °C4 February 1961	25.2 °C	294 mm	155
1960	37.5 °C25 June 1960	10.8 °C29 January 1960	25.6 °C	157 mm	157
1959	37.3 °C23 September 1959	9.2 °C23 February 1959	25.1 °C	295 mm	161
1958	37.6 °C22 August 1958	9.6 °C2 February 1958	25.8 °C	238 mm	173
1957	37.7 °C17 July 1957	9.2 °C7 February 1957	24.9 °C	395 mm	150
1956	39.3 °C8 August 1956	10.0 °C18 January 1956	25.5 °C	228 mm	155
1955	39.0 °C21 July 1955	12.3 °C24 February 1955	25.5 °C	425 mm	149
1954	37.4 °C14 August 1954	11.4 °C23 January 1954	25.7 °C	477 mm	157
1953	38.2 °C14 August 1953	9.2 °C23 December 1953	25.6 °C	680 mm	168
1952	37.9 °C19 July 1952	10.3 °C13 January 1952	25.5 °C	274 mm	163
1951	37.0 °C28 June 1951	10.5 °C27 January 1951	25.5 °C	529 mm	159
1950	38.1 °C29 August 1950	5.4 °C29 January 1950	24.9 °C	335 mm	152
1949	37.4 °C9 July 1949	6.4 °C11 February 1949	24.9 °C	446 mm	160
1948	37.7 °C4 July 1948	9.4 °C31 December 1948	25.1 °C	470 mm	153
1947	40.4 °C13 July 1947	10.8 °C27 December 1947	25.9 °C	411 mm	169
1946	37.9 °C30 June 1946	10.3 °C26 January 1946	25.7 °C	129 mm	161
1945	37.2 °C13 August 1945	10.6 °C2 March 1945	25.4 °C	161 mm	158
1944	37.8 °C25 July 1944	11.2 °C3 February 1944	25.9 °C	264 mm	176
1943	37.1 °C28 August 1943	10.2 °C5 February 1943	25.3 °C	117 mm	156
1942	39.2 °C24 July 1942	9.5 °C7 January 1942	26.2 °C	103 mm	176
1941	39.8 °C26 July 1941	14.0 °C25 January 1941	26.5 °C	15 mm	173
1940	38.5 °C23 July 1940	11.3 °C17 January 1940	25.9 °C	58 mm	173

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?

Year

Across the whole year

Average daily high

28.9 °C

+1.1 °C

Hot days (≥ 30 °C)

185 d/yr

+18

Frost days (< 0 °C)

0 d/yr

Annual rainfall

237 mm

+17 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	20.5 °C	+1.7 °C	4 mm	-62 mm
Feb	20.1 °C	+0.4 °C	27 mm	-3 mm
Mar	22.9 °C	+0.4 °C	13 mm	-6 mm
Apr	29.0 °C	+2.6 °C	0 mm	-6 mm
May	32.6 °C	+1.5 °C	0 mm	-1 mm
Jun	34.5 °C	+0.8 °C	0 mm	0 mm
Jul	35.0 °C	+0.3 °C	0 mm	-0 mm
Aug	35.2 °C	+0.2 °C	0 mm	-0 mm
Sep	34.7 °C	+0.9 °C	0 mm	-0 mm
Oct	31.1 °C	+0.2 °C	0 mm	-1 mm
Nov	27.9 °C	+1.9 °C	0 mm	-23 mm
Dec	22.5 °C	+1.3 °C	193 mm	+121 mm

The year's extremes

Hottest day

40.2 °C

17 Jun 2025

Coldest day

10.3 °C

26 Feb 2025

Wettest day

88.1 mm

16 Dec 2025

Windiest day

38.4 km/h

7 May 2025

Strongest gust

59.4 km/h

7 May 2025

Hottest feels-like

45.2 °C

1 Aug 2025

Coldest feels-like

4.5 °C

26 Feb 2025

Sunniest day

13.0 h

28 Apr 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Bandar-e Deyr?

Bandar-e Deyr has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 25.7 °C and it receives 220 mm of precipitation per year.

What is the hottest day ever recorded in Bandar-e Deyr?

The hottest day measured in Bandar-e Deyr between 1940 and 2025 was 1 September 2001, reaching 41.4 °C.

What is the coldest day in Bandar-e Deyr?

The coldest day measured in Bandar-e Deyr between 1940 and 2025 was 20 January 1964, at 3.3 °C.

Does it snow in Bandar-e Deyr?

Almost never: Bandar-e Deyr sees virtually no snow, with about 0 frost days per year.

Has the climate of Bandar-e Deyr warmed?

Yes: Bandar-e Deyr warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Bandar-e Deyr?

The wettest day measured in Bandar-e Deyr between 1940 and 2025 was 14 December 1953, with 145 mm of rain in 24 hours.

What was the windiest day in Bandar-e Deyr?

The windiest day measured in Bandar-e Deyr between 1940 and 2025 was 7 March 1954, with winds reaching 51.4 km/h.

What is the warmest month in Bandar-e Deyr?

The warmest month in Bandar-e Deyr is August (33.3 °C on average); the coldest is January (16.7 °C).

How much does it rain in Bandar-e Deyr?

Bandar-e Deyr receives on average 220 mm of precipitation per year, spread over about 21 rainy days.

Is it sunny in Bandar-e Deyr?

Bandar-e Deyr gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.

Are there tropical nights in Bandar-e Deyr?

Yes: Bandar-e Deyr has on average 243 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Bandar-e Deyr?

In Bandar-e Deyr, between 1940 and 2025, the highest apparent temperature reached 46.4 °C on 11 August 2022, and the lowest was -4.4 °C on 20 January 1964.

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