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Weather & Climate in Polonnaruwa, Sri Lanka
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Polonnaruwa has a warm climate with an average annual temperature of 82°F (28°C). Winters average 78°F in January while summers reach 84°F in July / relatively mild seasonal variation. The area gets 217 sunny days per year. Annual precipitation totals 67.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 197 feet.
Temperature
78°F Jan (25°C)
84°F Jul (29°C)
| Annual Average | 81.8°F |
| 51% above US avg | |
| January Average | 78°F (25°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 217 days/yr |
Geography
| Elevation | 197 ft (60 m) |
| Area | 315.4 sq mi (816.9 km²) |
| Population Density | 44/sq mi |
| Coordinates | 7.9397°N, 81.0027°W |
| Timezone | Asia/Colombo |
Precipitation & Snow
Air Quality
Hurricane History
3 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2000 | Unnamed | Category 1 | 104 mph | 62 km |
| 1993 | Unnamed | Category 1 | 75 mph | 229 km |
| 1992 | Unnamed | Category 1 | 63 mph | 267 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1882 | SRI LANKA | Earthquake | — | — | 74 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (25°C) | 8.1 in | Coldest |
| February | 79°F (26°C) | 4.0 in | |
| March | 82°F (28°C) | 3.4 in | |
| April | 84°F (29°C) | 4.1 in | |
| May | 85°F (29°C) | 2.9 in | Warmest |
| June | 84°F (29°C) | 0.4 in | Driest |
| July | 84°F (29°C) | 2.9 in | |
| August | 84°F (29°C) | 2.8 in | |
| September | 83°F (29°C) | 4.3 in | |
| October | 82°F (28°C) | 8.7 in | |
| November | 80°F (27°C) | 11.1 in | |
| December | 78°F (26°C) | 14.8 in | Wettest |
Polonnaruwa has a seasonal temperature swing of 7°F / from 78°F in January to 85°F in May. Total annual precipitation is 67.4 inches, with December being the wettest month (14.8") and June the driest (0.4").