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Weather & Climate in Karnaphuli, Bangladesh
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Karnaphuli has a warm climate with an average annual temperature of 78°F (25°C). Winters average 67°F in January while summers reach 81°F in July / relatively mild seasonal variation. The area gets 195 sunny days per year. Annual precipitation totals 106.3 inches (wetter than the 38-inch national average). The city sits at an elevation of 151 feet.
Temperature
67°F Jan (20°C)
81°F Jul (27°C)
| Annual Average | 77.7°F |
| 44% above US avg | |
| January Average | 67°F (20°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 195 days/yr |
Geography
| Elevation | 151 ft (46 m) |
| Area | 293.9 sq mi (761.2 km²) |
| Population Density | 693/sq mi |
| Coordinates | 22.6906°N, 92.2347°W |
| Timezone | Asia/Dhaka |
Precipitation & Snow
Air Quality
Earthquake History
107 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.1.
| Nov 21, 1997 | 42 km SW of Saiha, India | M6.1 | 72 km | 54 km |
| Jan 3, 2017 | 18 km ENE of ?mb?sa, India | M5.7 | 149 km | 32 km |
| Jul 26, 2003 | 44 km SE of Khagrachhari, Bangladesh | M5.7 | 20 km | 10 km |
| Jun 21, 2020 | 22 km E of North Vanlaiphai, India | M5.6 | 119 km | 11 km |
| Nov 13, 2000 | 88 km S of Saiha, India | M5.5 | 131 km | 33 km |
| Jul 27, 2003 | 41 km W of Lunglei, India | M5.5 | 19 km | 10 km |
| Sep 9, 2014 | 42 km SE of Saiha, India | M5.4 | 117 km | 10 km |
| Jul 22, 1999 | 16 km NW of Cox’s B?z?r, Bangladesh | M5.2 | 132 km | 10 km |
| Jul 17, 2020 | 25 km E of North Vanlaiphai, India | M5.1 | 120 km | 10 km |
| Jan 12, 2008 | 44 km WSW of Lunglei, India | M4.9 | 13 km | 34 km |
| Dec 13, 2009 | 25 km WSW of S?tkania, Bangladesh | M4.9 | 88 km | 10 km |
| Jan 31, 2008 | 36 km WSW of Lunglei, India | M4.9 | 20 km | 45 km |
| Jul 5, 2020 | 24 km E of North Vanlaiphai, India | M4.8 | 121 km | 10 km |
| Nov 22, 1997 | 40 km E of B?ndarban, Bangladesh | M4.8 | 71 km | 53 km |
| Jul 28, 2020 | 25 km ESE of Khawhai, India | M4.8 | 130 km | 10 km |
| Sep 21, 1992 | 2 km ENE of Khawhai, India | M4.8 | 122 km | 33 km |
| Jul 28, 2007 | 42 km NE of Raoj?n, Bangladesh | M4.8 | 9 km | 37 km |
| Feb 17, 2019 | 16 km WSW of Saiha, India | M4.8 | 70 km | 10 km |
| Jun 24, 2020 | 23 km ENE of North Vanlaiphai, India | M4.8 | 121 km | 4 km |
| Aug 2, 1993 | 15 km SW of Falam, Myanmar | M4.8 | 137 km | 75 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
16 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2023 | Mocha | Category 4 | 104 mph | 203 km |
| 2023 | Hamoon | Category 2 | 75 mph | 216 km |
| 2019 | Bulbul:matmo | Category 1 | 52 mph | 292 km |
| 2017 | Mora | Category 1 | 69 mph | 91 km |
| 2010 | Giri | Category 3 | 92 mph | 298 km |
| 2007 | Sidr | Category 4 | 132 mph | 172 km |
| 2007 | Akash | Category 1 | - | 166 km |
| 2004 | Unnamed | Category 1 | 104 mph | 300 km |
| 1998 | Unnamed | Category 1 | 69 mph | 67 km |
| 1997 | Unnamed | Category 4 | 104 mph | 46 km |
| 1997 | Unnamed | Category 1 | 63 mph | 69 km |
| 1995 | Unnamed | Category 2 | 89 mph | 127 km |
| 1994 | Unnamed | Category 4 | 132 mph | 103 km |
| 1992 | Forrest | Category 3 | 52 mph | 278 km |
| 1991 | Unnamed | Category 5 | 146 mph | 14 km |
| 1988 | Unnamed | Category 2 | 132 mph | 248 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 1.8 m (6 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1762 | NORTHERN BAY OF BENGAL | Earthquake | 1.8 m | - | 81 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 67°F (20°C) | 0.3 in | Coldest, Driest |
| February | 71°F (22°C) | 0.6 in | |
| March | 78°F (26°C) | 1.6 in | |
| April | 82°F (28°C) | 4.3 in | |
| May | 83°F (28°C) | 9.4 in | Warmest |
| June | 82°F (28°C) | 23.9 in | Wettest |
| July | 81°F (27°C) | 23.9 in | |
| August | 81°F (27°C) | 19.0 in | |
| September | 82°F (28°C) | 12.2 in | |
| October | 81°F (27°C) | 8.5 in | |
| November | 75°F (24°C) | 2.4 in | |
| December | 69°F (21°C) | 0.3 in |
Karnaphuli has a seasonal temperature swing of 16°F / from 67°F in January to 83°F in May. Total annual precipitation is 106.3 inches, with June being the wettest month (23.9") and January the driest (0.3").