Downtown, British Indian Ocean Territory

Full City Profile

3,000 Population
20 ft Elevation 6 meters
81°F Avg Temperature 27°C
Downtown has a warm climate with an average annual temperature of 81°F (27°C). Winters average 82°F in January while summers reach 80°F in July. Annual precipitation totals 101.3 inches. The area receives 0.0 inches of snow annually.

Temperature

82°F Jan (28°C) 80°F Jul (26°C)
Annual Average81.3°F
51% above US avg
January Average82°F (28°C)
July Average80°F (26°C)

Geography

Elevation20 ft (6 m)
Coordinates7.2623°S, 72.3768°E
TimezoneIndian/Chagos

Precipitation & Snow

Annual Rainfall 101.3"
167% above US avg
Snowfall 0.0"
Wettest Month (Jan) 12.40"
Driest Month (Jun) 5.51"

Air Quality

Earthquake History

20 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.2.

Sep 7, 2012 Chagos Archipelago region M5.2 48 km
Dec 29, 1994 Chagos Archipelago region M4.9 109 km
Jul 15, 2022 Chagos Archipelago region M4.9 85 km
Jun 14, 2006 Chagos Archipelago region M4.8 43 km
Jul 18, 2000 Chagos Archipelago region M4.8 109 km
Nov 10, 2013 Chagos Archipelago region M4.8 117 km
Nov 24, 1992 Chagos Archipelago region M4.8 44 km
Jan 23, 2020 Chagos Archipelago region M4.8 88 km
Jan 24, 2012 Chagos Archipelago region M4.8 48 km
Sep 5, 1996 Chagos Archipelago region M4.7 74 km
Oct 17, 2024 Chagos Archipelago region M4.7 78 km
Dec 30, 1996 Chagos Archipelago region M4.7 75 km
Jan 7, 2015 Chagos Archipelago region M4.6 49 km
Sep 6, 2022 Chagos Archipelago region M4.6 77 km
Jul 18, 2006 Chagos Archipelago region M4.6 94 km
Feb 18, 2002 Chagos Archipelago region M4.6 101 km
May 6, 2012 Chagos Archipelago region M4.5 68 km
Mar 19, 2020 Chagos Archipelago region M4.5 76 km
Aug 15, 2012 Chagos Archipelago region M4.5 133 km
Jan 30, 2021 Chagos Archipelago region M4.5 145 km
Source: USGS (M2.5+, 1990-2025)

Hurricane History

3 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 5.

Year Name Category Closest
2023 Fabien Category 3 194 km
2005 Bentojana Category 5 258 km
1995 Albertine Category 3 202 km
Source: NOAA IBTrACS (Cat 1+, 1980-2026)

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 1.5 m (5 ft).

Year Location Cause Max Wave Deaths Distance
1983 CHAGOS ARCHIPELAGO REGION Earthquake 1.5 m - 54 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 82°F (28°C) 12.4 in Wettest
February 82°F (28°C) 10.7 in
March 83°F (28°C) 8.5 in
April 83°F (28°C) 6.9 in Warmest
May 82°F (28°C) 6.3 in
June 81°F (27°C) 5.5 in Driest
July 80°F (26°C) 5.5 in
August 79°F (26°C) 6.0 in Coldest
September 80°F (27°C) 9.5 in
October 81°F (27°C) 10.6 in
November 82°F (28°C) 8.6 in
December 82°F (28°C) 10.9 in

Downtown has a seasonal temperature swing of 4°F / from 79°F in August to 83°F in April. Total annual precipitation is 101.3 inches, with January being the wettest month (12.4") and June the driest (5.5").

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