| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 21.2° | 9° | 17.7mm | 2.6 | 95 |
| February | 26.7° | 12.6° | 17.9mm | 2.7 | 95 |
| March | 32.6° | 17.1° | 1.9mm | 1.6 | 74 |
| April | 37.5° | 22.2° | 9.7mm | 1 | 56 |
| May | 37.9° | 25° | 5.9mm | 1.3 | 54 |
| June | 36.7° | 26.4° | 203.8mm | 10 | 41 |
| July | 33.4° | 26.5° | 347.6mm | 18.4 | 44 |
| August | 33.3° | 26.3° | 249.1mm | 18.8 | 45 |
| September | 32.9° | 25.6° | 233.6mm | 18 | 46 |
| October | 32.4° | 22° | 28.5mm | 3.8 | 71 |
| November | 29.1° | 15.7° | 13.6mm | 1.6 | 88 |
| December | 24.8° | 10.6° | 11.9mm | 0.7 | 99 |
January in Patna averages a daily high of 21.2°C with nights around 9°C. Rain is rare — about 2.6 wet days and 17.7mm across the month. Comfortable conditions for being outdoors all day.
February in Patna averages a daily high of 26.7°C with nights around 12.6°C. Rain is rare — about 2.7 wet days and 17.9mm across the month. Comfortable conditions for being outdoors all day.
March in Patna averages a daily high of 32.6°C with nights around 17.1°C. Rain is rare — about 1.6 wet days and 1.9mm across the month. Generally workable, with some weather to plan around.
April in Patna averages a daily high of 37.5°C with nights around 22.2°C. Rain is rare — about 1 wet days and 9.7mm across the month. Generally workable, with some weather to plan around.
May in Patna averages a daily high of 37.9°C with nights around 25°C. Rain is rare — about 1.3 wet days and 5.9mm across the month. Demanding conditions — pack for it and plan indoor options.
June in Patna averages a daily high of 36.7°C with nights around 26.4°C. Expect roughly 10 wet days totalling 203.8mm. Demanding conditions — pack for it and plan indoor options.
July in Patna averages a daily high of 33.4°C with nights around 26.5°C. Expect roughly 18.4 wet days totalling 347.6mm. Demanding conditions — pack for it and plan indoor options.
August in Patna averages a daily high of 33.3°C with nights around 26.3°C. Expect roughly 18.8 wet days totalling 249.1mm. Demanding conditions — pack for it and plan indoor options.
September in Patna averages a daily high of 32.9°C with nights around 25.6°C. Expect roughly 18 wet days totalling 233.6mm. Demanding conditions — pack for it and plan indoor options.
October in Patna averages a daily high of 32.4°C with nights around 22°C. Expect roughly 3.8 wet days totalling 28.5mm. Generally workable, with some weather to plan around.
November in Patna averages a daily high of 29.1°C with nights around 15.7°C. Rain is rare — about 1.6 wet days and 13.6mm across the month. Comfortable conditions for being outdoors all day.
December in Patna averages a daily high of 24.8°C with nights around 10.6°C. Rain is rare — about 0.7 wet days and 11.9mm across the month. Comfortable conditions for being outdoors all day.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Patna peaks at 99.
Based on 30 years of records, December–February scores highest for comfort in Patna, balancing daytime temperature against rainfall.
May is the warmest, averaging a daily high of 37.9°C.
July is the wettest, averaging 347.6mm of rain across roughly 18.4 wet days.
January is the coolest month, with average daily highs around 21.2°C.