10-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Clear sky
21°
Feels like 23°
Wind↑ SW 2 km/h
Humidity 52 %
Afternoon
Clear sky
27°
Feels like 29°
Wind↑ SW 7 km/h
Humidity 39 %
11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Clear sky
22°
Feels like 26°
Wind↑ ENE 6 km/h
Humidity 64 %
Afternoon
Clear sky
27°
Feels like 30°
Wind↑ E 6 km/h
Humidity 40 %
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Mainly clear
22°
Feels like 25°
Wind↑ NE 7 km/h
Humidity 56 %
Afternoon
Partly cloudy
28°
Feels like 30°
Wind↑ E 2 km/h
Humidity 38 %
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Clear sky
23°
Feels like 25°
Wind↑ NE 8 km/h
Humidity 51 %
Afternoon
Mainly clear
27°
Feels like 29°
Wind↑ WNW 6 km/h
Humidity 35 %
Patna forecast in charts · next 7 days
The week ahead: highs and lows
▲ This week runs +1.7° warmer than usual
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Patna climate: what a normal year looks like
The wet season is concentrated from July to September, which brings 70% of the annual total; July by itself averages 323 mm.
Afternoons reach 30 °C or more from March to October; the typical peak is 38 °C in May.
Day and night differ most in March: 33 °C in the afternoon against 19 °C before dawn, a 14 °C swing.
Forecast highs for the coming week average 29 °C, 3 °C cooler than a normal October (32 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
22 °C
11 °C
18 mm
Feb
27 °C
14 °C
17 mm
Mar
33 °C
19 °C
12 mm
Apr
38 °C
24 °C
14 mm
May
38 °C
27 °C
36 mm
Jun
37 °C
28 °C
184 mm
Jul
33 °C
28 °C
323 mm
Aug
33 °C
27 °C
279 mm
Sep
32 °C
26 °C
202 mm
Oct
32 °C
23 °C
55 mm
Nov
29 °C
17 °C
6 mm
Dec
24 °C
12 °C
8 mm
Whole year
31 °C
21 °C
1,150 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 25.59° N, 85.14° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Patna: pollution and pollen
4/6
Poor
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.531µg/m³
PM1031µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Patna
Rain observed over the last two hours by official weather radars around Patna, followed by the radar forecast for the next hour where the weather service provides one.
Rain radarLast two hours, then forecast where available · drag the timeline
No open weather radar covers Patna yet: the map shows our hour-by-hour rain forecast (ICON, GFS).
Moon over Patna
Waning gibbous
79 % illuminated · 19.3 days
Rise 22:46 Set 12:15
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Wed11/113%
Moonrise and moonset in local time (Asia/Kolkata); phase and lit fraction from a synodic calculation.
Look up a past day in Patna
Curious about the weather in Patna on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Patna weather at a glance
This page gathers everything about the weather in Patna, Bihar: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “drizzle”, it is 22 °C (feels like 29 °C) and the wind blows at 16 km/h.
Expected range today: 21 °C to 23 °C and around 17 mm of rain. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.
Use the Patna forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
