Weather in Patna in October

India · 20-year averages, October

A good month. October is a solid month to be in Patna. Highs average 30.9 °C, lows 20.7 °C, and rain falls on 6 days — nothing in the month is working against you.

October ranks 5 of 12 in Patna: past the worst of the year but short of December, which is the month to book if the dates are open.

Rain falls on only 6 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 30.9 °C days and 20.7 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 20 days top 30 °C, making the heat continuous rather than occasional. Across the twenty years measured, the hottest October day reached 36 °C and the coldest night fell to 12.2 °C, and the wettest single day dropped 68 mm — roughly 136% of the month's rain in one day.

This is the volatile part. October rainfall has ranged from 5 mm to 191 mm across the twenty years measured — a 186 mm spread around an average of 50 mm. The average is real but almost no individual October looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 4.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 74%.

How October sits in the year

Temperatures hold steady either side: 31.6 °C in September, 30.9 here, 27.9 in November. Nothing about the timing within the month matters much. Rain is the thing that moves: November brings 6 days less of it, so pushing the dates later buys drier weather.

Daylight in October

11.6 hours of daylight, losing 0.7 hours across the month. That is between Patna's extremes of 13.7 and 10.6 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 33.2 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

How busy it gets

Shoulder. The value months — prices ease off and you get the place closer to itself.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

October in Patna versus nearby

If Patna is one option among several, the nearby comparison is worth making. Varanasi is close enough to be a coin toss — within a degree on temperature, 2 days less rain. Kathmandu is a better bet in October — 7.8 °C cooler, 1 day more rain.

So: October is a compromise. December is 27 points better and is what Patna is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Patna

MonthHigh °CLow °CRain daysRain mmHumidity %Daylight hScore
January23.98.8 2115110.797
February2912.4 2144411.388
March35.417.9 29311248
April40.724 3142612.730
May4227.9 6503413.430
June39.629.5 151525013.719
July34.127.2 242767713.633
August32.726.3 232338313.137
September31.625 181818412.341
October30.920.7 6507411.671
November27.914.9 016410.996
December24.310.2 135810.698

See all twelve months in Patna, or where else to go in October.

Planning the rest of the trip

Built and maintained by Amit Sharma, Auckland, New Zealand. I build these sites so the answer is free and the data is public.

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