Weather in Patna in December

Prime time. If you get to pick your dates, December is the one. Highs average 24.3 °C, lows 10.2 °C, and rain falls on 1 days — nothing in the month is working against you.

December is the highest-scoring month of the twelve. The nearest rival is January, and the month at the other end of the year is June.

Rain falls on only 1 days, so an itinerary with no wet-weather fallback is a reasonable risk. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average December reaches 30 °C. Across the twenty years measured, the hottest December day reached 32 °C and the coldest night fell to 2.2 °C.

December is dependably dry, and that reliability is the point: across the twenty years measured, the wettest December on record still only managed 26 mm, and the driest managed 0 mm. There is no meaningful variability to plan around, which makes this one of the few months anywhere that you can build a fixed outdoor itinerary against without a fallback. The wettest single day in twenty years of Decembers brought 22 mm. Rain simply is not the variable that decides this trip — heat, crowds and cost are.

Wind is light at 4.8 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 58%.

How December sits in the year

Temperatures hold steady either side: 27.9 °C in November, 24.3 here, 23.9 in January. Nothing about the timing within the month matters much.

Daylight in December

December sits at the dark end of Patna's year — 10.6 hours of daylight against 13.7 at midsummer, holding steady all month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

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. Within December itself the daily swing is 14.1 °C, so mornings and afternoons need different clothes.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

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

December 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, the same number of rain days. Kathmandu is close enough to be a coin toss — 6.3 °C cooler, the same number of rain days.

So: December is the answer for Patna. If it is booked out or priced out, January is the next best thing at 1 points behind, and June is the month to keep off the shortlist.

Every month in Patna

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