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Monthly climate in Samastipur, India

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Samastipur features a humid subtropical climate (Cwa). Temperatures typically range between 15 °C (60 °F) and 31 °C (89 °F) through the year, but rarely can drop to 6 °C (43 °F) or can rise to as high as 45 °C (113 °F). The average annual precipitation amounts to about 1369 mm (53.9 inches) and receives 122 rainy days on the 1 mm (0.04 inches) threshold annually. Samastipur enjoys an average of 3551 hours of sunshine throughout the year, and daylight varies from 10 hours 33 minutes to 13 hours 42 minutes per day.

Monthly average temperatures in Samastipur, India

The warmest months in Samastipur are May, June and July, with daily mean temperatures ranging from 30 to 31 °C (86 - 89 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 15 to 19 °C (60 - 67 °F) throughout the day. On average each year, Samastipur experiences 278 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Samastipur. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(82°F)		33°C
(92°F)		37°C
(100°F)		42°C
(107°F)		43°C
(109°F)		45°C
(113°F)		39°C
(103°F)		37°C
(98°F)		37°C
(98°F)		37°C
(98°F)		34°C
(93°F)		30°C
(86°F)
Mean maximum26°C
(79°F)		31°C
(88°F)		37°C
(98°F)		40°C
(105°F)		40°C
(105°F)		40°C
(104°F)		37°C
(99°F)		36°C
(98°F)		36°C
(97°F)		35°C
(96°F)		32°C
(91°F)		29°C
(84°F)
Average high22°C
(72°F)		26°C
(80°F)		32°C
(90°F)		37°C
(98°F)		36°C
(97°F)		36°C
(97°F)		33°C
(92°F)		33°C
(92°F)		33°C
(92°F)		32°C
(90°F)		30°C
(85°F)		24°C
(76°F)
Daily mean15°C
(60°F)		19°C
(67°F)		25°C
(77°F)		30°C
(85°F)		30°C
(87°F)		31°C
(89°F)		30°C
(86°F)		30°C
(86°F)		30°C
(85°F)		27°C
(82°F)		22°C
(73°F)		17°C
(63°F)
Average low11°C
(52°F)		14°C
(57°F)		19°C
(66°F)		24°C
(75°F)		26°C
(78°F)		27°C
(82°F)		28°C
(82°F)		28°C
(82°F)		27°C
(81°F)		24°C
(75°F)		17°C
(63°F)		13°C
(55°F)
Mean minimum7°C
(45°F)		9°C
(49°F)		13°C
(56°F)		20°C
(68°F)		22°C
(73°F)		25°C
(78°F)		26°C
(79°F)		26°C
(79°F)		25°C
(77°F)		19°C
(67°F)		13°C
(56°F)		8°C
(47°F)
Minimum6°C
(43°F)		8°C
(46°F)		9°C
(49°F)		17°C
(64°F)		21°C
(70°F)		24°C
(75°F)		25°C
(78°F)		26°C
(79°F)		23°C
(74°F)		17°C
(63°F)		12°C
(54°F)		6°C
(43°F)

Compare climate in Samastipur with other places

Compare temperature, precipitation, sunshine, UV index in Samastipur, India with other places around the world.

Monthly average precipitation in Samastipur, India

Samastipur usually has the most precipitation in July, August and September, with an average of 26 rainy days and 304 mm (12.0 inches) of precipitation per month. The driest months in Samastipur are January, March and November. On average, 7 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Samastipur. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)6 (0.2)20 (0.8)14 (0.5)18 (0.7)83 (3.3)203 (8.0)361 (14.2)297 (11.7)255 (10.0)88 (3.5)1 (0.0)21 (0.8)
Average precipitation days (≥ 1 mm)2234816272724801

Monthly sunshine hours in Samastipur, India

The sunniest months in Samastipur are March, April and May, when the sun shines an average of 11 hours 10 minutes a day. Least sunny months in Samastipur: January, July and December receive an average of 8 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Samastipur. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours231281333341351322265287286294279274
Mean daily daylight hours10h 43m11h 16m12h 0m12h 45m13h 23m13h 42m13h 32m12h 59m12h 16m11h 31m10h 52m10h 33m

Solar UV radiation in Samastipur, India

Samastipur experiences the highest level of ultraviolet (UV) radiation in July, August and September, when the maximum UV index can reach values of 12 - 12, which corresponds to the Extreme category of sun exposure. January, February and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Samastipur UV Index data.

Average daily maximum UV levels by month for Samastipur. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)56810910121212965