All Countries
Weather & Climate in Mannar, Sri Lanka
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mannar has a warm climate with an average annual temperature of 83°F (28°C). Winters average 78°F in January while summers reach 84°F in July / relatively mild seasonal variation. The area gets 262 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 40.9 inches. The city sits at an elevation of 30 feet.
Temperature
78°F Jan (26°C)
84°F Jul (29°C)
| Annual Average | 82.5°F |
| 53% above US avg | |
| January Average | 78°F (26°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 262 days/yr |
Geography
| Elevation | 30 ft (9 m) |
| Area | 314.6 sq mi (814.7 km²) |
| Population Density | 114/sq mi |
| Coordinates | 8.9895°N, 79.8784°W |
| Timezone | Asia/Colombo |
Precipitation & Snow
Air Quality
Hurricane History
8 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2020 | Nivar | Category 1 | 75 mph | 290 km |
| 2018 | Gaja | Category 1 | 81 mph | 169 km |
| 2000 | Unnamed | Category 1 | 117 mph | 287 km |
| 2000 | Unnamed | Category 1 | 104 mph | 135 km |
| 1993 | Unnamed | Category 1 | 104 mph | 199 km |
| 1992 | Unnamed | Category 1 | 63 mph | 209 km |
| 1984 | Unnamed | Category 1 | - | 266 km |
| 1984 | Unnamed | Category 1 | 132 mph | 223 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (26°C) | 2.6 in | Coldest |
| February | 80°F (27°C) | 1.6 in | |
| March | 83°F (28°C) | 1.7 in | |
| April | 85°F (30°C) | 3.5 in | |
| May | 86°F (30°C) | 2.2 in | Warmest |
| June | 85°F (29°C) | 0.2 in | Driest |
| July | 84°F (29°C) | 0.6 in | |
| August | 84°F (29°C) | 0.6 in | |
| September | 84°F (29°C) | 1.5 in | |
| October | 82°F (28°C) | 7.1 in | |
| November | 80°F (27°C) | 10.9 in | Wettest |
| December | 79°F (26°C) | 8.4 in |
Mannar has a seasonal temperature swing of 7°F / from 78°F in January to 86°F in May. Total annual precipitation is 40.9 inches, with November being the wettest month (10.9") and June the driest (0.2").