Geography of Chennai
Chennai is located at 13°02′N 80°10′E / 13.04°N 80.17°E on the southeast coast of India and in the northeast corner of Tamil Nadu. It is located on a flat coastal plain known as the Eastern Coastal Plains. The city has an average elevation of 6 metres (20 ft), its highest point being 60 m (200 ft). Chennai is 2,184 kilometres (1,357 miles) south of Delhi, 1,337 kilometres (831 miles) southeast of Mumbai, and 1,679 kilometers (1,043 miles) southwest of Kolkata by road.
Geology
The
Climate
Chennai has a dry-summer
The average annual
Climate data for Chennai (Nungambakkam; rainfall from Chennai Airport) 1991–2020, extremes 1901–2012 | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °C (°F) | 34.4 (93.9) |
36.7 (98.1) |
40.6 (105.1) |
42.8 (109.0) |
45.0 (113.0) |
43.3 (109.9) |
41.1 (106.0) |
40.0 (104.0) |
38.9 (102.0) |
39.4 (102.9) |
35.4 (95.7) |
33.0 (91.4) |
45.0 (113.0) |
Mean daily maximum °C (°F) | 29.3 (84.7) |
30.9 (87.6) |
32.9 (91.2) |
34.5 (94.1) |
37.1 (98.8) |
37.0 (98.6) |
35.3 (95.5) |
34.7 (94.5) |
34.2 (93.6) |
32.1 (89.8) |
29.9 (85.8) |
28.9 (84.0) |
33.1 (91.6) |
Daily mean °C (°F) | 25.4 (77.7) |
26.7 (80.1) |
28.7 (83.7) |
31.0 (87.8) |
33.0 (91.4) |
32.3 (90.1) |
31.0 (87.8) |
30.3 (86.5) |
29.8 (85.6) |
28.5 (83.3) |
26.7 (80.1) |
25.6 (78.1) |
29.1 (84.4) |
Mean daily minimum °C (°F) | 21.2 (70.2) |
22.2 (72.0) |
24.2 (75.6) |
26.6 (79.9) |
28.0 (82.4) |
27.5 (81.5) |
26.4 (79.5) |
25.9 (78.6) |
25.6 (78.1) |
24.6 (76.3) |
23.1 (73.6) |
21.9 (71.4) |
24.8 (76.6) |
Record low °C (°F) | 13.9 (57.0) |
15.0 (59.0) |
16.7 (62.1) |
20.0 (68.0) |
21.1 (70.0) |
20.6 (69.1) |
21.0 (69.8) |
20.5 (68.9) |
20.6 (69.1) |
16.7 (62.1) |
15.0 (59.0) |
13.9 (57.0) |
13.9 (57.0) |
Average rainfall mm (inches) | 20.0 (0.79) |
4.7 (0.19) |
3.4 (0.13) |
17.5 (0.69) |
49.7 (1.96) |
75.4 (2.97) |
113.1 (4.45) |
141.4 (5.57) |
143.9 (5.67) |
278.3 (10.96) |
377.3 (14.85) |
183.7 (7.23) |
1,408.4 (55.45) |
Average rainy days | 1.4 | 0.6 | 0.2 | 1.0 | 1.8 | 4.5 | 6.7 | 8.8 | 7.4 | 10.6 | 11.5 | 5.7 | 60.2 |
Average relative humidity (%) (at 17:30 IST )
|
67 | 66 | 67 | 70 | 68 | 63 | 65 | 66 | 71 | 76 | 76 | 71 | 69 |
Mean monthly sunshine hours | 232.5 | 240.1 | 291.4 | 294.0 | 300.7 | 234.0 | 142.6 | 189.1 | 195.0 | 257.3 | 261.0 | 210.8 | 2,848.5 |
Mean daily sunshine hours | 7.5 | 8.5 | 9.4 | 9.8 | 9.7 | 7.8 | 4.6 | 6.1 | 6.5 | 8.3 | 8.7 | 6.8 | 7.8 |
Average ultraviolet index | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 7 | 7 | 7 |
Source 1: India Meteorological Department[10][11][12][13] | |||||||||||||
Source 2: Japan Meteorological Agency[14] Weather Atlas[15] |
Water bodies
Two rivers meander through Chennai, the
Historically, Chennai has faced a problem of water supply shortages as no big river flows through it with a resulting over-reliance on annual
Layout
For administrative purposes Chennai is divided into five
The Chennai Metropolitan area consists of five districts namely Chennai city and the districts of
The metropolitan area covers 1,177 km2 (454 sq mi). The city is divided on the basis of composition into four major parts: North, Central, South and West.North Chennai is primarily an industrial area. Central Chennai is the commercial heart of the city and the downtown area. South Chennai and West Chennai, previously predominantly residential areas are fast turning into commercial areas, hosting a large number of
The
References
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- ^ "A ready reckoner on rainwater harvesting". Govt. of Tamil Nadu / New Indian Express. Archived from the original on 23 June 2005. Retrieved 5 August 2005.
- ^ "Suganthi". revistas.unal.edu.co. Retrieved 30 July 2020.
- ^ "Suganthi". revistas.unal.edu.co. Retrieved 30 July 2020.
- ^ "About Chennai" (PDF). Chennai Metropolitan Development Authority. p. 28. Retrieved 25 February 2024.
- ISBN 9783031190599.
- ^ "Climatology tables:Extremes till 2012" (PDF). India Meteorological Department. Archived (PDF) from the original on 5 February 2020. Retrieved 29 May 2023.
- ^ "Climatology tables:Normal 1981-2010" (PDF). India Meteorological Department. p. 279. Archived (PDF) from the original on 20 June 2023. Retrieved 29 May 2023.
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- ^ "Table 3 Monthly mean duration of Sun Shine (hours) at different locations in India" (PDF). Daily Normals of Global & Diffuse Radiation (1971–2000). India Meteorological Department. December 2016. p. M-3. Archived from the original (PDF) on 5 February 2020. Retrieved 2 March 2020.
- ^ "Chennai Climatological Table 1981–2010". India Meteorological Department. Retrieved 2 March 2020.
- ^ "Normals Data". Japan Meteorological Agency. Retrieved 11 May 2020.
- ^ "Climate and monthly weather forecast Chennai, India". Weather Atlas. Retrieved 13 June 2022.
- ^ "Chennai". lifeinchennai.com. Retrieved 27 July 2009.
- ISSN 0971-751X. Retrieved 30 July 2020.
- ISSN 0971-751X. Retrieved 30 July 2020.
- ^ "Chennai Water Supply". Management of water supply during acute water scarcity in 2003 & 2004. Chennai Metropolitan Water Supply and Sewage Board (CMWSSB). Archived from the original on 12 August 2007. Retrieved 16 March 2007.
- ^ "Bangalore team visits RWH structures in city", The Hindu, 3 August 2007, accessed 11 August 2007
- ^ "General statistics". Corporation of Chennai. Retrieved 4 August 2005.