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San Sai, Thailand

Full City Profile

7,310 Population 47/sq mi density
1,037 ft Elevation 316 meters
78°F Avg Temperature 25°C
San Sai has a warm climate with an average annual temperature of 78°F (26°C). Winters average 71°F in January while summers reach 81°F in July. The area gets 341 sunny days per year. Annual precipitation totals 86.6 inches. The area receives 0.0 inches of snow annually.

Temperature

71°F Jan (22°C) 81°F Jul (27°C)
Annual Average77.7°F
44% above US avg
January Average71°F (22°C)
July Average81°F (27°C)
Sunny Days341 days/yr

Geography

Elevation1,037 ft (316 m)
Area156.4 sq mi (405.0 km²)
Population Density47/sq mi
Coordinates18.8479°N, 99.0451°W
TimezoneAsia/Bangkok

Precipitation & Snow

Annual Rainfall 86.6"
128% above US avg
Snowfall 0.0"
Wettest Month (Aug) 7.30"
Driest Month (Jan) 0.10"

Air Quality

Earthquake History

34 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.1. Most recent: M4.2 on Jun 2, 2025.

May 5, 2014 32 km SSW of Chiang Rai, Thailand M6.1 111 km
Sep 11, 1994 41 km NW of Mae Chai, Thailand M5.2 96 km
May 6, 2014 31 km SW of Chiang Rai, Thailand M5.0 113 km
May 6, 2014 42 km SE of Fang, Thailand M5.0 97 km
May 5, 2014 32 km SSW of Chiang Rai, Thailand M4.6 112 km
May 6, 2014 40 km SW of Chiang Rai, Thailand M4.6 106 km
Feb 20, 2019 26 km SW of Mae Chai, Thailand M4.6 71 km
May 7, 2014 38 km SW of Chiang Rai, Thailand M4.5 106 km
Aug 24, 2014 44 km SSE of Fang, Thailand M4.5 92 km
Dec 21, 1995 52 km SSW of Fang, Thailand M4.5 68 km
May 5, 2014 27 km SW of Chiang Rai, Thailand M4.4 118 km
May 5, 2014 31 km SSW of Chiang Rai, Thailand M4.4 113 km
Nov 11, 2001 13 km W of Pa Daet, Thailand M4.4 113 km
May 5, 2014 33 km SSW of Chiang Rai, Thailand M4.3 112 km
May 5, 2014 38 km NW of Mae Chai, Thailand M4.3 105 km
May 12, 2014 29 km SSW of Chiang Rai, Thailand M4.3 115 km
May 6, 2014 39 km NW of Mae Chai, Thailand M4.3 98 km
Jan 7, 1990 54 km WNW of Fang, Thailand M4.3 147 km
Jun 2, 2025 43 km NNE of Chiang Mai, Thailand M4.2 35 km
May 6, 2014 40 km SE of Fang, Thailand M4.2 103 km
Source: USGS (M2.5+, 1990–2025)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 71°F (22°C) 0.1 in Driest
February 74°F (23°C) 0.2 in
March 80°F (26°C) 0.8 in
April 84°F (29°C) 1.9 in Warmest
May 83°F (28°C) 6.1 in
June 82°F (28°C) 4.4 in
July 81°F (27°C) 5.3 in
August 80°F (27°C) 7.3 in Wettest
September 80°F (26°C) 7.0 in
October 78°F (26°C) 4.3 in
November 74°F (23°C) 1.7 in
December 70°F (21°C) 0.4 in Coldest

San Sai has a seasonal temperature swing of 14°F / from 70°F in December to 84°F in April. Total annual precipitation is 39.5 inches, with August being the wettest month (7.3") and January the driest (0.1").

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