Gampaha, Sri Lanka

Full City Profile

9,350 Population 30/sq mi density

69 ft Elevation 21 meters

81°F Avg Temperature 27°C

Gampaha has a warm climate with an average annual temperature of 81°F (27°C). Winters average 80°F in January while summers reach 81°F in July. The area gets 172 sunny days per year. Annual precipitation totals 93.7 inches. The area receives 0.0 inches of snow annually.

Temperature

80°F Jan (27°C) 81°F Jul (27°C)

Annual Average	81.3°F
	51% above US avg
January Average	80°F (27°C)
July Average	81°F (27°C)
Sunny Days	172 days/yr

Geography

Elevation	69 ft (21 m)
Area	316.0 sq mi (818.5 km²)
Population Density	30/sq mi
Coordinates	7.0897°N, 79.9925°W
Timezone	Asia/Colombo

Precipitation & Snow

Annual Rainfall 93.7"

146% above US avg

Snowfall 0.0"

Wettest Month (Oct) 14.92"

Driest Month (Jan) 2.36"

Air Quality

Hurricane History

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

Year	Name	Category	Closest
2000	Unnamed	Category 1	192 km
1992	Unnamed	Category 1	164 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	80°F (27°C)	2.4 in	Driest
February	81°F (27°C)	3.0 in
March	82°F (28°C)	5.9 in
April	83°F (28°C)	10.3 in	Warmest
May	83°F (28°C)	13.7 in
June	82°F (28°C)	7.9 in
July	81°F (27°C)	5.2 in
August	81°F (27°C)	4.1 in
September	81°F (27°C)	7.7 in
October	81°F (27°C)	14.9 in	Wettest
November	80°F (27°C)	13.0 in
December	80°F (26°C)	5.8 in	Coldest

Gampaha has a seasonal temperature swing of 4°F / from 80°F in December to 83°F in April. Total annual precipitation is 93.7 inches, with October being the wettest month (14.9") and January the driest (2.4").

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