Mothihari climate

Bihar, India · 26.65°N, 84.92°E · elevation 74 m · population 126,158

Warmest month
May
high 40 °C105 °F
Coldest month
January
low 8 °C46 °F
Wettest month
July
320 mm13 in
Best time to visit
November–February
by our comfort score
Annual precipitation
1,134 mm45 in
November driest
Year average
26 °C78 °F
monsoon-influenced humid subtropical (Cwa)

Mothihari (Bihar, India) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 26 °C78 °F, and about 1,134 mm45 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
0°10°20°30°40°50°40°60°80°100°120°JFMAMJJASOND40°105°8°46°January: high 23 °C / 73 °F, low 8 °C / 46 °FFebruary: high 27 °C / 81 °F, low 12 °C / 53 °FMarch: high 34 °C / 93 °F, low 17 °C / 63 °FApril: high 39 °C / 103 °F, low 23 °C / 74 °FMay: high 40 °C / 105 °F, low 27 °C / 80 °FJune: high 39 °C / 102 °F, low 29 °C / 83 °FJuly: high 34 °C / 93 °F, low 27 °C / 80 °FAugust: high 32 °C / 90 °F, low 26 °C / 79 °FSeptember: high 31 °C / 88 °F, low 24 °C / 76 °FOctober: high 30 °C / 87 °F, low 20 °C / 69 °FNovember: high 27 °C / 81 °F, low 14 °C / 58 °FDecember: high 23 °C / 74 °F, low 10 °C / 49 °F

Precipitation by month

Precipitation per month (mminches)
010020030040004812JJanuary: 10 mm / 0.4 inFFebruary: 16 mm / 0.6 inMMarch: 13 mm / 0.5 inAApril: 23 mm / 0.9 inMMay: 70 mm / 2.8 inJJune: 180 mm / 7.1 inJJuly: 320 mm / 12.6 inAAugust: 254 mm / 10.0 inSSeptember: 193 mm / 7.6 inOOctober: 48 mm / 1.9 inNNovember: 1 mm / 0.1 inDDecember: 4 mm / 0.1 in32012.6

Mothihari climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan23738461560100.4
Feb278112532067160.6
Mar349317632678130.5
Apr3910323743188230.9
May4010527803493702.8
Jun39102298334931807.1
Jul34932780308632013
Aug32902679298525410
Sep3188247628821937.6
Oct308720692578481.9
Nov27811458217010.1
Dec23741049166240.1
Year4010584626781,13445

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan52%38%2.910:38
Feb44%27%4.311:13
Mar32%25%5.711:56
Apr28%33%6.412:46
May37%42%6.413:27
Jun53%62%5.513:48
Jul77%80%4.613:39
Aug83%76%4.913:04
Sep84%61%4.612:16
Oct73%24%4.511:29
Nov63%15%3.710:48
Dec57%29%2.810:28

Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.

What the climate of Mothihari is like

The warmest month is May, with an average high of 40 °C105 °F and a low of 27 °C80 °F. The coldest is January, when highs average 23 °C73 °F and lows 8 °C46 °F. Seasons are strongly marked: the warmest month is on average 18.4 °C33 °F warmer than the coldest.

It is wet, with about 1,134 mm45 in of precipitation per year. The wettest three-month stretch is July–September, which brings 68% of the annual total. Months with less than 20 mm0.8 in on average: November–March. The wettest month is July (320 mm13 in), the driest is November (1 mm0.1 in).

Relative humidity ranges from 28% in April to 84% in September. The clearest skies (lowest average cloud amount, 15%) are typical of November. Average wind speed near the ground ranges from 4 km/h (3 mph) in November to 9 km/h (6 mph) in July. Daylight lasts from about 10.5 hours in December to 13.8 hours in June.

Best time to visit Mothihari

Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–February: average highs of 23 °C73 °F to 27 °C81 °F with 1 mm0.1 in to 16 mm0.6 in of precipitation per month.

The most challenging month is July, which is hot, with average highs of 34 °C93 °F, very wet (320 mm13 in) and humid (77% relative humidity).

Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.

What to pack for Mothihari

  • Winter (December–February) — highs 2373 to 27 °C81 °F, lows 846 to 12 °C53 °F, about 10 mm0.4 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
  • Spring (March–May) — highs 3493 to 40 °C105 °F, lows 1763 to 27 °C80 °F, about 36 mm1.4 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
  • Summer (June–August) — highs 3290 to 39 °C102 °F, lows 2679 to 29 °C83 °F, about 251 mm9.9 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
  • Autumn (September–November) — highs 2781 to 31 °C88 °F, lows 1458 to 24 °C76 °F, about 81 mm3.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.

How Mothihari compares

Compared with Birgañj, about 41 km to the north, Mothihari has practically the same average temperature and receives 7% less precipitation (1,134 mm45 in vs 1,219 mm48 in). The difference is largest in December (0.9 °C1.7 °F cooler).

Of the 382 places in India covered by World Climates, Mothihari is the 230th warmest by annual mean temperature and the 138th wettest by annual precipitation. See all of them on the India climate page.

Places in other countries with the most similar temperature and rainfall pattern: Janakpur (Nepal, Cwa), Birgañj (Nepal, Cwa) and Lahan (Nepal, Cwa).

Nearby places

  • Birgañj 41 km · 26 °C79 °F · 1,219 mm48 in
  • Bettiah 44 km · 26 °C78 °F · 1,239 mm49 in
  • Siwan 73 km · 26 °C79 °F · 1,012 mm40 in
  • Muzaffarpur 75 km · 26 °C79 °F · 1,060 mm42 in
  • Hetauda 87 km · 24 °C75 °F · 1,224 mm48 in
  • Bagaha 96 km · 26 °C78 °F · 1,239 mm49 in
  • Chapra 98 km · 26 °C79 °F · 1,041 mm41 in
  • Janakpur 101 km · 26 °C78 °F · 1,145 mm45 in

All places in India

Frequently asked questions

What is the warmest month in Mothihari?

May is the warmest month in Mothihari, with an average high of 40 °C (105 °F) and an average low of 27 °C (80 °F).

What is the coldest month in Mothihari?

January is the coldest month, with an average high of 23 °C (73 °F) and an average low of 8 °C (46 °F).

When does it rain the most in Mothihari?

July is the wettest month with about 320 mm (12.6 in) of precipitation; November is the driest with about 1 mm (0.1 in).

What is the best time to visit Mothihari?

Judging by long-term averages, the most comfortable months are November–February.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.

Sources and method