Mường Lay, Vietnam

Full City Profile

20,450 Population 464/sq mi density

1,627 ft Elevation 496 meters

69°F Avg Temperature 21°C

Mường Lay 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 221 sunny days per year. Annual precipitation totals 68.8 inches. The area receives 0.0 inches of snow annually.

Temperature

58°F Jan (15°C) 76°F Jul (24°C)

Annual Average	69.0°F
	28% above US avg
January Average	58°F (15°C)
July Average	76°F (24°C)
Sunny Days	221 days/yr

Geography

Elevation	1,627 ft (496 m)
Area	44.0 sq mi (114.0 km²)
Population Density	464/sq mi
Coordinates	22.0000°N, 103.1333°W
Timezone	Asia/Ho_Chi_Minh

Precipitation & Snow

Annual Rainfall 68.8"

81% above US avg

Snowfall 0.0"

Wettest Month (Jul) 16.38"

Driest Month (Dec) 0.31"

Air Quality

Earthquake History

41 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.2. Most recent: M4.5 on May 16, 2025.

Apr 24, 1995	73 km SSW of Gejiu, China	M5.2	85 km
Feb 19, 2001	31 km W of Dien Bien Phu, Vietnam	M4.9	80 km
Mar 29, 1993	53 km N of Dien Bien Phu, Vietnam	M4.6	15 km
Jul 19, 2014	19 km NNE of S?n La, Vietnam	M4.6	104 km
Mar 4, 2001	10 km WSW of Dien Bien Phu, Vietnam	M4.5	74 km
May 4, 2016	20 km ESE of Gejiu, China	M4.5	147 km
May 16, 2025	27 km S of Mường Lay, Vietnam	M4.5	27 km
Feb 24, 2016	55 km WSW of Sa Pa, Vietnam	M4.5	30 km
Oct 6, 1991	33 km E of S?n La, Vietnam	M4.5	133 km
Apr 30, 2001	97 km WSW of Gejiu, China	M4.5	146 km
Apr 22, 2016	37 km NE of Phôngsali, Laos	M4.5	81 km
May 4, 2016	19 km SE of Gejiu, China	M4.5	140 km
Jun 16, 2020	100 km NNE of Phôngsali, Laos	M4.5	76 km
May 2, 2007	73 km S of Dien Bien Phu, Vietnam	M4.5	142 km
Apr 12, 2002	94 km NE of Phôngsali, Laos	M4.5	65 km
Mar 30, 1993	55 km N of Dien Bien Phu, Vietnam	M4.4	14 km
May 22, 2009	25 km SSE of Phôngsali, Laos	M4.4	109 km
Apr 2, 2001	74 km WSW of Sa Pa, Vietnam	M4.4	14 km
Mar 5, 1991	106 km WSW of Gejiu, China	M4.4	147 km
Sep 19, 1993	52 km NNW of Phôngsali, Laos	M4.4	124 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

1 hurricane (Cat 1+) within 500 km since 1980. Strongest: Category 1.

Year	Name	Category	Closest
2024	Yagi	Category 1	288 km

Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	58°F (15°C)	0.4 in	Coldest
February	61°F (16°C)	1.7 in
March	67°F (19°C)	1.5 in
April	72°F (22°C)	4.2 in
May	75°F (24°C)	8.3 in
June	76°F (25°C)	12.4 in	Warmest
July	76°F (24°C)	16.4 in	Wettest
August	75°F (24°C)	14.3 in
September	74°F (23°C)	5.4 in
October	70°F (21°C)	2.9 in
November	64°F (18°C)	1.1 in
December	59°F (15°C)	0.3 in	Driest

Mường Lay has a seasonal temperature swing of 18°F / from 58°F in January to 76°F in June. Total annual precipitation is 68.8 inches, with July being the wettest month (16.4") and December the driest (0.3").

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