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Bandar-e Dayyer

Persian: بندر دير
Bandar-e Dayyer Persian: بندر دير
City
	Gomroke in Dayyer
	Bandar-e Dayyer
	Coordinates: 27°50′25″N 51°56′24″E / 27.84028°N 51.94000°E
Country	Iran
Province	Bushehr
County	Deyr
District	Central
Population (2016)
• Total	24,083
Time zone	UTC+3:30 (IRST)

Bandar-e Dayyer (Persian: بندر دير)^[a] is a city in the Central District of Deyr County, Bushehr province, Iran, serving as capital of both the county and the district.^[4] Bandar-e Deyr was a prominent commercial port in the Persian Gulf,^[5] and the Jewish settlers were dominating the local market^[6]

Demographics

Population

At the time of the 2006 National Census, the city's population was 18,454 in 3,882 households.^[7] The following census in 2011 counted 20,157 people in 4,890 households.^[8] The 2016 census measured the population of the city as 24,083 people in 6,680 households.^[2]

Jewish community

Some historians believe that Bandar-e Dayyer during the 13th century was exclusively inhabited by Jews.^[9] In the 19th century Lorimer stated that the population is about 5,500 souls, including some Jews.^[10] The Jewish community during the 19th century had an estimated population of 20 to 50 families.^[11]

Climate

Climate data for Bandar-e Dayyer (1991–2020)
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Record high °C (°F)	30.4 (86.7)	30.4 (86.7)	36.6 (97.9)	44.5 (112.1)	49.8 (121.6)	50.0 (122.0)	49.8 (121.6)	49.5 (121.1)	49.5 (121.1)	44.5 (112.1)	37.6 (99.7)	33.8 (92.8)	50.0 (122.0)
Mean daily maximum °C (°F)	22.1 (71.8)	23.4 (74.1)	26.8 (80.2)	32.2 (90.0)	38.1 (100.6)	39.4 (102.9)	39.1 (102.4)	38.2 (100.8)	37.3 (99.1)	34.8 (94.6)	29.2 (84.6)	24.6 (76.3)	32.1 (89.8)
Daily mean °C (°F)	17.7 (63.9)	19.0 (66.2)	22.2 (72.0)	26.9 (80.4)	32.2 (90.0)	34.0 (93.2)	34.8 (94.6)	34.7 (94.5)	33.2 (91.8)	29.8 (85.6)	24.2 (75.6)	19.8 (67.6)	27.4 (81.3)
Mean daily minimum °C (°F)	13.4 (56.1)	14.6 (58.3)	17.7 (63.9)	22.2 (72.0)	27.2 (81.0)	29.1 (84.4)	30.7 (87.3)	30.6 (87.1)	28.2 (82.8)	24.5 (76.1)	19.6 (67.3)	15.4 (59.7)	22.8 (73.0)
Record low °C (°F)	1.0 (33.8)	5.4 (41.7)	10.0 (50.0)	2.0 (35.6)	17.4 (63.3)	20.4 (68.7)	23.8 (74.8)	25.5 (77.9)	20.4 (68.7)	13.4 (56.1)	10.0 (50.0)	7.2 (45.0)	1.0 (33.8)
Average precipitation mm (inches)	70.3 (2.77)	27.7 (1.09)	21.5 (0.85)	5.8 (0.23)	1.0 (0.04)	0.0 (0.0)	1.1 (0.04)	0.0 (0.0)	0.0 (0.0)	1.8 (0.07)	38.5 (1.52)	54.0 (2.13)	221.7 (8.73)
Average precipitation days (≥ 1.0 mm)	3.8	2.3	2.5	1.2	0.1	0.0	0.1	0.0	0.0	0.3	2.6	2.7	15.6
Average relative humidity (%)	60.0	57.0	54.0	49.0	43.0	51.0	58.0	64.0	58.0	53.0	51.0	57.0	54.6
Average dew point °C (°F)	9.3 (48.7)	9.6 (49.3)	11.2 (52.2)	13.7 (56.7)	14.9 (58.8)	19.1 (66.4)	23.5 (74.3)	26.1 (79.0)	22.8 (73.0)	18.2 (64.8)	12.5 (54.5)	10.3 (50.5)	15.9 (60.6)
Mean monthly sunshine hours	230.0	214.0	241.0	257.0	320.0	341.0	321.0	314.0	299.0	298.0	242.0	239.0	3,316
Source: NOAA^[12]

Notes

^ Also romanized as Bandar-e Deyer and Bandar-e Deyr; also known as Daiyir, Dayer, Deyyer, and Qal’eh Dīr^[3]

References

^ OpenStreetMap contributors (27 August 2024). "Bandar-e Deyr, Deyr County" (Map). openstreetmap.org (OpenStreetMap) (in Persian). Retrieved 27 August 2024.
^ ^a ^b Census of the Islamic Republic of Iran, 1395 (2016): Bushehr Province. amar.org.ir (Report) (in Persian). The Statistical Center of Iran. Archived from the original (Excel) on 3 August 2017. Retrieved 19 December 2022.
^ Bandar-e Dayyer can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3061101" in the "Unique Feature Id" form, and clicking on "Search Database".
^ Habibi, Hassan (c. 2024) [Approved 21 June 1369]. Approval of the organization and chain of citizenship of elements and units of the national divisions of Bushehr province centered on Bushehr city. lamtakam.com (Report) (in Persian). Ministry of the Interior, Political Defense Commission of the Government Board. Notification 82824/T138K. Archived from the original on 24 April 2024. Retrieved 24 April 2024 – via Lam ta Kam.
^ Ahmed Eqtedari, Asar Shahrhay Bastani Sawahel Wa Jazaier Khaleej Fars, 2nd Edition, Entsharat Rawayat Publication, Tehran, page 262
^ Abdullah Darvishi, Yahoudian Bandar Deyr, 1375
^ Census of the Islamic Republic of Iran, 1385 (2006): Bushehr Province. amar.org.ir (Report) (in Persian). The Statistical Center of Iran. Archived from the original (Excel) on 20 September 2011. Retrieved 25 September 2022.
^ Census of the Islamic Republic of Iran, 1390 (2011): Bushehr Province. irandataportal.syr.edu (Report) (in Persian). The Statistical Center of Iran. Archived from the original (Excel) on 3 April 2023. Retrieved 19 December 2022 – via Iran Data Portal, Syracuse University.
^ هارون وهومن، زندان فراموشي، شركت كتاب، لوس آنجلس، 2007، ص46
^ Lorimer. Gazetteer Of The Persian Gulf Oman & Central Arabia. Government Printing, Calcutta, (1908). V2 p361-362
^ David Yeroushalmi. The Jews of Iran in the Nineteenth century. Brill. Leiden, The Netherlands. (2009). P74
^ "World Meteorological Organization Climate Normals for 1991-2020 — Bandar-e Dayyer". National Oceanic and Atmospheric Administration. Retrieved 31 December 2023.