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Sông Mã, Vietnam

Full City Profile

1,102 ft Elevation 336 meters
69°F Avg Temperature 21°C
Sông Mã enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 58°F in January while summers reach 76°F in July. The area gets 226 sunny days per year. Annual precipitation totals 63.2 inches. The area receives 0.0 inches of snow annually.

Temperature

58°F Jan (15°C) 76°F Jul (24°C)
Annual Average69.1°F
28% above US avg
January Average58°F (15°C)
July Average76°F (24°C)
Sunny Days226 days/yr

Geography

Elevation1,102 ft (336 m)
Area124.9 sq mi (323.5 km²)
Population Density0/sq mi
Coordinates21.0509°N, 103.7499°W
TimezoneAsia/Bangkok

Precipitation & Snow

Annual Rainfall 63.2"
66% above US avg
Snowfall 0.0"
Wettest Month (Jul) 14.90"
Driest Month (Jan) 0.40"

Air Quality

Earthquake History

22 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.9. Most recent: M4.5 on May 16, 2025.

Jul 27, 2020 ~120km W of Hanoi, Vietnam M4.9 93 km
Feb 19, 2001 31 km W of Dien Bien Phu, Vietnam M4.9 114 km
Apr 3, 2003 83 km S of Dien Bien Phu, Vietnam M4.7 76 km
Jul 19, 2014 19 km NNE of S?n La, Vietnam M4.6 54 km
Mar 29, 1993 53 km N of Dien Bien Phu, Vietnam M4.6 113 km
May 16, 2025 27 km S of Mường Lay, Vietnam M4.5 105 km
May 2, 2007 73 km S of Dien Bien Phu, Vietnam M4.5 74 km
Oct 6, 1991 33 km E of S?n La, Vietnam M4.5 62 km
Mar 4, 2001 10 km WSW of Dien Bien Phu, Vietnam M4.5 92 km
Feb 24, 2016 55 km WSW of Sa Pa, Vietnam M4.5 135 km
Apr 2, 2001 74 km WSW of Sa Pa, Vietnam M4.4 134 km
Mar 30, 1993 55 km N of Dien Bien Phu, Vietnam M4.4 116 km
Jun 21, 1995 83 km W of Xam Nua, Laos M4.4 94 km
Mar 14, 2022 76 km SSE of Dien Bien Phu, Vietnam M4.4 53 km
Dec 21, 1993 62 km WSW of Sa Pa, Vietnam M4.3 140 km
Jan 7, 2018 36 km E of Dien Bien Phu, Vietnam M4.3 53 km
Jan 8, 2018 36 km E of Dien Bien Phu, Vietnam M4.3 53 km
Jun 21, 1995 72 km N of Muang Phônsavan, Laos M4.2 118 km
May 7, 2011 46 km SSW of S?n La, Vietnam M4.1 11 km
Feb 2, 1996 72 km WSW of Sa Pa, Vietnam M4.1 134 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

9 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 2.

Year Name Category Closest
2024 Yagi Category 2 203 km
2016 Mirinae Category 1 272 km
2014 Kalmaegi Category 1 294 km
2012 Son-tinh Category 1 299 km
1997 Zita Category 1 244 km
1996 Frankie Category 2 239 km
1996 Niki Category 1 225 km
1995 Lois Category 1 275 km
1982 Nancy Category 1 299 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 58°F (15°C) 0.4 in Coldest, Driest
February 61°F (16°C) 1.7 in
March 67°F (19°C) 1.3 in
April 72°F (22°C) 4.7 in
May 75°F (24°C) 7.7 in
June 76°F (25°C) 9.8 in Warmest
July 76°F (24°C) 14.9 in Wettest
August 76°F (24°C) 12.9 in
September 74°F (23°C) 6.2 in
October 71°F (21°C) 2.6 in
November 64°F (18°C) 0.9 in
December 59°F (15°C) 0.4 in

Sông Mã has a seasonal temperature swing of 18°F / from 58°F in January to 76°F in June. Total annual precipitation is 63.5 inches, with July being the wettest month (14.9") and January the driest (0.4").

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