Climate averages 1991–2020

Purnia weather
in July.

A hot, very wet month: the 6th warmest and the wettest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 31.2°C Daytime mean, July

Average low 25.7°C Night-time mean, July

Rainfall 375 mm 29 days with ≥1 mm

Daylight 14 h Sunrise to sunset, per day

July is a hot month in Purnia: daytime highs average 31.2°C and nights cool to about 25.7°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 375 mm of rain on roughly 29 days, which makes July a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 35 min on an average July day.

The nearest other city in this atlas is Katihar (28 km away). In July its highs average 31.3°C, about as warm as Purnia, with 327 mm of rain.

Among the 692 cities listed in India, Purnia ranks joint 344th of 692 for the warmest July highs and joint 592nd of 692 for the driest July (rainfall, lowest first). The mean July high of those 692 cities is 31.0°C; Purnia is 0.2°C warmer than that mean.

From July to August, average highs rise by 0.1°C to 31.3°C, and monthly rainfall falls from 375 mm to 338 mm.

The annual picture

July in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Purnia climate table

1991–2020

Monthly climate averages for Purnia, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	22.7°C11.3°C	11.3°C	12	1.9	10.711 h
February	26.1°C13.8°C	13.8°C	17	2.2	11.311 h
March	31.8°C18.8°C	18.8°C	20	3.0	12.012 h
April	34.6°C22.6°C	22.6°C	50	7.4	12.813 h
May	33.3°C24.2°C	24.2°C	160	16.3	13.413 h
June	31.9°C25.3°C	25.3°C	315	23.8	13.714 h
July, selected	31.2°C25.7°C	25.7°C	375	29.1	13.614 h
August	31.3°C25.7°C	25.7°C	338	28.6	13.013 h
September	30.6°C24.8°C	24.8°C	295	24.8	12.312 h
October	29.8°C21.8°C	21.8°C	101	9.6	11.612 h
November	27.8°C16.9°C	16.9°C	5.7	0.6	10.911 h
December	24.5°C12.9°C	12.9°C	5.9	0.7	10.611 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

July in nearby cities

Distance from Purnia

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Purnia) is explained once on the Purnia year overview and on the Sources, method and limits page.