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Weather & Climate in Katunayaka, Sri Lanka
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Katunayaka 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 / relatively mild seasonal variation. The area gets 188 sunny days per year. Annual precipitation totals 82.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 43 feet.
Temperature
80°F Jan (26°C)
81°F Jul (27°C)
| Annual Average | 81.2°F |
| 50% above US avg | |
| January Average | 80°F (26°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 188 days/yr |
Geography
| Elevation | 43 ft (13 m) |
| Area | 316.0 sq mi (818.3 km²) |
| Population Density | 268/sq mi |
| Coordinates | 7.1699°N, 79.8884°W |
| Timezone | Asia/Colombo |
Precipitation & Snow
Air Quality
Hurricane History
2 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 | 192 km |
| 1992 | Unnamed | Category 1 | 63 mph | 150 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 80°F (26°C) | 2.0 in | Driest |
| February | 81°F (27°C) | 2.6 in | |
| March | 83°F (28°C) | 5.4 in | |
| April | 83°F (28°C) | 9.5 in | Warmest |
| May | 83°F (28°C) | 11.7 in | |
| June | 82°F (28°C) | 6.5 in | |
| July | 81°F (27°C) | 4.4 in | |
| August | 82°F (28°C) | 3.4 in | |
| September | 81°F (27°C) | 6.3 in | |
| October | 81°F (27°C) | 13.7 in | Wettest |
| November | 80°F (27°C) | 12.1 in | |
| December | 79°F (26°C) | 5.0 in | Coldest |
Katunayaka has a seasonal temperature swing of 4°F / from 79°F in December to 83°F in April. Total annual precipitation is 82.6 inches, with October being the wettest month (13.7") and January the driest (2.0").