All Countries
Weather & Climate in Mirissa city, Sri Lanka
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mirissa city has a warm climate with an average annual temperature of 80°F (27°C). Winters average 79°F in January while summers reach 80°F in July / relatively mild seasonal variation. The area gets 166 sunny days per year, below the national average of 205. Annual precipitation totals 93.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 43 feet.
Temperature
79°F Jan (26°C)
80°F Jul (27°C)
| Annual Average | 80.2°F |
| 49% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 166 days/yr |
Geography
| Elevation | 43 ft (13 m) |
| Area | 316.8 sq mi (820.4 km²) |
| Population Density | 15/sq mi |
| Coordinates | 5.9466°N, 80.4583°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 | 290 km |
| 1992 | Unnamed | Category 1 | 63 mph | 276 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 4.4 in | Coldest |
| February | 80°F (26°C) | 3.6 in | Driest |
| March | 81°F (27°C) | 4.7 in | |
| April | 82°F (28°C) | 7.7 in | Warmest |
| May | 82°F (28°C) | 11.6 in | |
| June | 81°F (27°C) | 8.7 in | |
| July | 80°F (27°C) | 6.7 in | |
| August | 80°F (27°C) | 7.2 in | |
| September | 80°F (27°C) | 8.8 in | |
| October | 80°F (27°C) | 11.7 in | Wettest |
| November | 80°F (26°C) | 11.5 in | |
| December | 79°F (26°C) | 7.4 in |
Mirissa city has a seasonal temperature swing of 3°F / from 79°F in January to 82°F in April. Total annual precipitation is 93.8 inches, with October being the wettest month (11.7") and February the driest (3.6").