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Weather & Climate in Nannilam, India
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Nannilam has a warm climate with an average annual temperature of 83°F (28°C). Winters average 76°F in January while summers reach 87°F in July / relatively mild seasonal variation. The area gets 253 sunny days per year, above the national average. Annual precipitation totals 45.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 52 feet.
Temperature
76°F Jan (25°C)
87°F Jul (30°C)
| Annual Average | 83.0°F |
| 54% above US avg | |
| January Average | 76°F (25°C) |
| July Average | 87°F (30°C) |
| Sunny Days | 253 days/yr |
Geography
| Elevation | 52 ft (16 m) |
| Area | 4.9 sq mi (12.8 km²) |
| Population Density | 2,554/sq mi |
| Coordinates | 10.8793°N, 79.6106°W |
| Timezone | Asia/Kolkata |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| Sep 25, 2001 | 39 km SE of Marakkanam, India | M5.2 | 137 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
9 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2020 | Nivar | Category 1 | 75 mph | 149 km |
| 2018 | Gaja | Category 1 | 81 mph | 43 km |
| 2016 | Vardah | Category 2 | 81 mph | 249 km |
| 2011 | Thane | Category 2 | 86 mph | 97 km |
| 2000 | Unnamed | Category 1 | 117 mph | 86 km |
| 1993 | Unnamed | Category 1 | 104 mph | 43 km |
| 1990 | Unnamed | Category 4 | 146 mph | 254 km |
| 1984 | Unnamed | Category 2 | 132 mph | 142 km |
| 1984 | Unnamed | Category 1 | 132 mph | 48 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 76°F (25°C) | 1.6 in | Coldest |
| February | 79°F (26°C) | 0.6 in | Driest |
| March | 83°F (28°C) | 0.6 in | |
| April | 86°F (30°C) | 1.3 in | |
| May | 89°F (32°C) | 1.9 in | Warmest |
| June | 88°F (31°C) | 1.3 in | |
| July | 87°F (30°C) | 2.6 in | |
| August | 86°F (30°C) | 4.3 in | |
| September | 85°F (29°C) | 3.7 in | |
| October | 82°F (28°C) | 8.2 in | |
| November | 79°F (26°C) | 11.9 in | Wettest |
| December | 77°F (25°C) | 8.1 in |
Nannilam has a seasonal temperature swing of 13°F / from 76°F in January to 89°F in May. Total annual precipitation is 45.9 inches, with November being the wettest month (11.9") and February the driest (0.6").