Patna is at its most pleasant from mid January to February, and again from late November to December. For sun, aim for March; for walking, go from mid December to early February.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
The sun season here falls in March, with a second spell in early and mid November. It peaks in mid November, at 74. The weakest stretch is in January, when it drops to 2, mostly because it is too cool. The clearest skies come in November, when the sky is typically 12% covered at midday (almost cloudless).
For being outside, go from mid January to February, with a second spell from late November to December. It peaks in early February, at 84. Avoid April to mid September for this: it falls to 0, mostly because it is too hot.
The walking season here runs from mid December to early February. It peaks in mid January, at 83. The weakest stretch is from late March to mid September, when it drops to 0, mostly because it is too warm.
The year, measured
The average temperature in Patna over the whole year is 26°C. May is the hottest month, with highs of about 34°C; January is the coldest, with lows of about 12°C. The rainy (wet) season in Patna runs from May to October, peaking in September with a 63% chance of rain on a given day. The dry season is November; November is the driest month, at 4%. Winds in Patna are highest in May, averaging 2.5 m/s (9 km/h), and lightest in November, at 0.6 m/s (2 km/h). The prevailing wind is from the NE. The clearest skies in Patna come in November, when the sky is typically 10% covered; July is the cloudiest month, at 75%.
Month by month Patna climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 17°C | 12°C | 16°C | 21% | 37% | 1.3 m/s | 57 | 4 | 80 |
| February | 24°C | 15°C | 23°C | 43% | 22% | 1.2 m/s | 76 | 36 | 46 |
| March | 30°C | 21°C | 30°C | 32% | 19% | 1.6 m/s | 31 | 67 | 8 |
| April | 34°C | 26°C | 35°C | 31% | 24% | 2.2 m/s | 2 | 38 | 0 |
| May | 34°C | 28°C | 37°C | 49% | 34% | 2.5 m/s | 2 | 19 | 0 |
| June | 34°C | 29°C | 38°C | 57% | 56% | 2.3 m/s | 1 | 8 | 0 |
| July | 32°C | 29°C | 37°C | 57% | 75% | 2.3 m/s | 1 | 12 | 0 |
| August | 32°C | 28°C | 37°C | 62% | 74% | 2.1 m/s | 0 | 12 | 0 |
| September | 30°C | 28°C | 35°C | 63% | 69% | 1.8 m/s | 12 | 12 | 9 |
| October | 30°C | 25°C | 34°C | 42% | 40% | 1.1 m/s | 6 | 39 | 1 |
| November | 27°C | 18°C | 28°C | 4% | 10% | 0.6 m/s | 47 | 63 | 16 |
| December | 22°C | 14°C | 21°C | 34% | 20% | 0.9 m/s | 79 | 27 | 57 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Patna weather by season
Year round, Patna has days of about 17°C at their warmest in January, its coolest month, and 34°C in May, its warmest; the coolest hours of the day run from 12°C to 29°C through the year, and the average temperature over the year is 26°C around the clock. Rain is most likely around September and least likely around November. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Patna weather in winterDecember to February
Winter in Patna has typical daily highs of about 21°C and lows of about 14°C, with a 33% chance of rain on a given day.
Patna weather in springMarch to May
Spring in Patna has typical daily highs of about 33°C and lows of about 25°C, with a 37% chance of rain on a given day.
Patna weather in summerJune to August
Summer in Patna has typical daily highs of about 32°C and lows of about 29°C, with a 59% chance of rain on a given day.
Patna weather in autumnSeptember to November
Autumn in Patna has typical daily highs of about 29°C and lows of about 24°C, with a 36% chance of rain on a given day.
When is the rainy season in Patna?
The rainy (wet) season in Patna runs from May to October, peaking in September with a 63% chance of rain on a given day. The dry season is November; November is the driest month, at 4%.
What time of year is Patna windiest?
Winds in Patna are highest in May, averaging 2.5 m/s (9 km/h), and lightest in November, at 0.6 m/s (2 km/h). The prevailing wind is from the NE.
What is the average temperature in Patna year round?
The average temperature in Patna over the whole year is 26°C. May is the hottest month, with highs of about 34°C; January is the coldest, with lows of about 12°C.
Where to go instead in early June, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.