August is one of the warmer months of the year in Patna, with average highs near 35°C and lows around 24.8°C (mean 29.9°C). It is a relatively wet time of year, averaging 246 mm of rainfall and 83% relative humidity across the period.
August is one of the warmer months of the year in Patna. Across 45 years of records, the warmest August in Patna was 2009 — when the month averaged 32°C — while the coldest were 1996, 1999 and 2008 at 28.8°C. Typical August days reach 35°C with nights near 24.8°C. The long-term August temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.8°C | 29.6°C | 29.9°C | 30.2°C | 30.1°C | +0.3°C |
| Avg High | 34.9°C | 34.7°C | 35.0°C | 35.3°C | 34.9°C | 0°C |
| Avg Low | 24.7°C | 24.6°C | 24.8°C | 25.1°C | 25.2°C | +0.5°C |
| Avg Rain | 263 mm | 262 mm | 240 mm | 230 mm | 229 mm | -34 mm |
August temperatures in Patna have risen by about 0.3°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 23.8°C (1986) to a record high of 39°C (2009).
Rainfall in August is a relatively wet time of year, averaging 246 mm, with a wettest year of 458 mm.
A quieter season to visit Patna
If your dates are flexible, the more temperate months of November and February tend to be the most comfortable for visiting Patna. That said, August — with days averaging 35°C and nights around 24.8°C (mean 29.9°C) and higher rainfall (246 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 33.9°C | 24.9°C | 29.4°C | 250 mm | 86% | 2.3 m/s | 4.3 |
| 2024 | 35.1°C | 25.3°C | 30.2°C | 240 mm | 83% | 2.1 m/s | 4.6 |
| 2023 | 36.1°C | 25.3°C | 30.7°C | 262 mm | 81% | 2.6 m/s | 4 |
| 2022 | 37.9°C | 25.5°C | 31.7°C | 166 mm | 75% | 2.7 m/s | 4.9 |
| 2021 | 33.2°C | 25.4°C | 29.3°C | 304 mm | 88% | 2 m/s | 4.3 |
| 2020 | 33.5°C | 24.6°C | 29.1°C | 151 mm | 87% | 2.3 m/s | 4.9 |
| 2019 | 35.2°C | 25.7°C | 30.5°C | 139 mm | 82% | 2.3 m/s | 4.9 |
| 2018 | 34.2°C | 25.6°C | 29.9°C | 190 mm | 84% | 2 m/s | 4.5 |
| 2017 | 34.6°C | 25.2°C | 29.9°C | 280 mm | 87% | 2.1 m/s | 4.3 |
| 2016 | 35.9°C | 25.2°C | 30.6°C | 143 mm | 81% | 2.6 m/s | 5.4 |
| 2015 | 34.9°C | 24.8°C | 29.9°C | 269 mm | 83% | 2 m/s | 4.9 |
| 2014 | 36.0°C | 25.0°C | 30.5°C | 358 mm | 82% | 2 m/s | 4.5 |
| 2013 | 37.2°C | 25.2°C | 31.2°C | 168 mm | 74% | 1.9 m/s | 5 |
| 2012 | 33.3°C | 24.8°C | 29.0°C | 296 mm | 84% | 1.7 m/s | 5 |
| 2011 | 34.6°C | 24.3°C | 29.4°C | 236 mm | 86% | 2.3 m/s | 4.6 |
| 2010 | 36.8°C | 25.4°C | 31.1°C | 222 mm | 79% | 2.1 m/s | 5 |
| 2009 🔥 | 39.0°C | 25.1°C | 32.0°C | 264 mm | 78% | 2.3 m/s | 4.6 |
| 2008 | 33.4°C | 24.3°C | 28.8°C | 401 mm | 89% | 2.1 m/s | 4.9 |
| 2007 | 34.9°C | 24.0°C | 29.4°C | 278 mm | 87% | 2 m/s | 4.7 |
| 2006 | 34.3°C | 24.9°C | 29.6°C | 218 mm | 84% | 2.6 m/s | 5.2 |
| 2005 | 34.5°C | 24.7°C | 29.6°C | 198 mm | 84% | 2.1 m/s | 4.6 |
| 2004 | 34.1°C | 25.2°C | 29.7°C | 234 mm | 85% | 2.9 m/s | 5.2 |
| 2003 | 34.2°C | 25.2°C | 29.7°C | 197 mm | 86% | 2.1 m/s | 5.1 |
| 2002 | 35.1°C | 24.6°C | 29.8°C | 233 mm | 84% | 2.6 m/s | 5.1 |
| 2001 | 35.1°C | 25.3°C | 30.2°C | 180 mm | 83% | 2 m/s | 4.9 |
| 2000 | 35.3°C | 24.8°C | 30.0°C | 202 mm | 82% | 2.2 m/s | 4.9 |
| 1999 | 33.8°C | 23.9°C | 28.8°C | 197 mm | 86% | 2.3 m/s | 4.3 |
| 1998 | 34.2°C | 25.5°C | 29.8°C | 286 mm | 87% | 1.7 m/s | 4.3 |
| 1997 | 33.2°C | 24.6°C | 28.9°C | 285 mm | 87% | 2.5 m/s | 4.7 |
| 1996 ❄️ | 33.4°C | 24.3°C | 28.8°C | 309 mm | 88% | 2 m/s | 4.7 |
| 1995 | 33.7°C | 24.9°C | 29.3°C | 248 mm | 86% | 2.3 m/s | 4.9 |
| 1994 | 36.8°C | 25.1°C | 30.9°C | 352 mm | 83% | 2.5 m/s | 5.1 |
| 1993 | 38.0°C | 23.9°C | 31.0°C | 265 mm | 74% | 2.2 m/s | 4.4 |
| 1992 | 35.2°C | 24.0°C | 29.6°C | 280 mm | 83% | 2.4 m/s | 4.9 |
| 1991 | 35.1°C | 25.1°C | 30.1°C | 266 mm | 80% | 2.5 m/s | 4.3 |
| 1990 | 33.7°C | 24.2°C | 29.0°C | 127 mm | 88% | 2.5 m/s | 5.3 |
| 1989 | 35.6°C | 23.9°C | 29.8°C | 130 mm | 82% | 2.5 m/s | 5.2 |
| 1988 | 34.6°C | 24.4°C | 29.5°C | 449 mm | 86% | 2.3 m/s | 4.1 |
| 1987 🌧️ | 34.4°C | 25.0°C | 29.7°C | 458 mm | 87% | 2.3 m/s | 4.4 |
| 1986 | 34.3°C | 23.8°C | 29.0°C | 205 mm | 83% | 2.5 m/s | 5.6 |
| 1985 | 34.9°C | 24.9°C | 29.9°C | 288 mm | 85% | 2.3 m/s | 5 |
| 1984 | 33.6°C | 25.2°C | 29.4°C | 283 mm | 87% | 2.6 m/s | 4.9 |
| 1983 | 36.7°C | 25.3°C | 31.0°C | 136 mm | 76% | 2.8 m/s | — |
| 1982 | 36.6°C | 25.1°C | 30.9°C | 211 mm | 77% | 3 m/s | — |
| 1981 | 33.8°C | 24.3°C | 29.0°C | 207 mm | 87% | 2.5 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 35°C with lows near 24.8°C (mean 29.9°C), based on 45 years of NASA POWER data.
August averages 246 mm of rainfall in Patna, a relatively wet time of year. The wettest on record was 458 mm in 1987.
The hottest August reached 39°C in 2009. The coldest dipped to 23.8°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.3°C. Daytime highs moved from 35.1°C to 35.2°C and overnight lows from 25°C to 25.3°C over the same span.
August is one of the warmer months of the year in Patna and a relatively wet time of year, so plan for around 35°C daytime highs and 24.8°C at night.
Not quite — August is the 8th coolest month in Patna, averaging 29.9°C.
For August in Patna, pack light, breathable clothing and sun protection, with typical highs of 35°C and lows of 24.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 83% — quite humid.
Average wind speed in August is 2.3 m/s. The windiest August on record averaged 3 m/s (1982).
The wettest August on record was 1987 with 458 mm. On average, August sees 246 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Patna behaves each August, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for August specifically, along with year-by-year records and how the month has changed over the decades.
