May is one of the warmer months of the year in Kishanganj, with average highs near 41.8°C and lows around 22.2°C (mean 32°C). It is a relatively wet time of year, averaging 144 mm of rainfall and 53% relative humidity across the period.
May is one of the warmer months of the year in Kishanganj. Across 45 years of records, the warmest May in Kishanganj was 1995 — when the month averaged 34.8°C — while the coldest were 2018 and 2020 at 29.7°C. Typical May days reach 41.8°C with nights near 22.2°C. The long-term trend is cooling, about 0.2°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 32.0°C | 32.8°C | 31.5°C | 32.0°C | 31.3°C | -0.7°C |
| Avg High | 42.3°C | 43.2°C | 41.2°C | 41.4°C | 40.5°C | -1.8°C |
| Avg Low | 21.7°C | 22.4°C | 21.9°C | 22.6°C | 22.1°C | +0.4°C |
| Avg Rain | 118 mm | 83 mm | 128 mm | 187 mm | 241 mm | +123 mm |
May temperatures in Kishanganj have stayed relatively stable across the record.
May has ranged from a record low of 19.2°C (1997) to a record high of 45.4°C (1994).
Rainfall in May is a relatively wet time of year, averaging 144 mm, with a wettest year of 340 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.5°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A quieter season to visit Kishanganj
If your dates are flexible, the more temperate months of November and February tend to be the most comfortable for visiting Kishanganj. That said, May — with days averaging 41.8°C and nights around 22.2°C (mean 32°C) and higher rainfall (144 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 | 41.0°C | 21.7°C | 31.4°C | 249 mm | 68% | 2.2 m/s | 5 |
| 2024 | 43.8°C | 21.8°C | 32.8°C | 193 mm | 53% | 2.4 m/s | 5.3 |
| 2023 | 42.9°C | 22.3°C | 32.6°C | 114 mm | 49% | 1.9 m/s | 5.9 |
| 2022 | 38.1°C | 23.3°C | 30.7°C | 266 mm | 69% | 1.8 m/s | 5 |
| 2021 🌧️ | 39.3°C | 22.1°C | 30.7°C | 340 mm | 67% | 2 m/s | 4.2 |
| 2020 | 37.7°C | 21.7°C | 29.7°C | 283 mm | 71% | 1.9 m/s | 4.9 |
| 2019 | 42.8°C | 21.2°C | 32.0°C | 108 mm | 54% | 2.4 m/s | 5.7 |
| 2018 ❄️ | 37.5°C | 21.9°C | 29.7°C | 189 mm | 74% | 2.1 m/s | 5.3 |
| 2017 | 38.9°C | 22.0°C | 30.4°C | 187 mm | 69% | 2 m/s | 5.3 |
| 2016 | 42.4°C | 24.1°C | 33.2°C | 272 mm | 59% | 1.8 m/s | 5.2 |
| 2015 | 41.7°C | 23.8°C | 32.8°C | 160 mm | 57% | 1.8 m/s | 5.6 |
| 2014 | 43.2°C | 24.1°C | 33.6°C | 206 mm | 49% | 2.1 m/s | 5.8 |
| 2013 | 42.8°C | 22.0°C | 32.4°C | 235 mm | 56% | 1.7 m/s | 5.4 |
| 2012 | 43.6°C | 21.7°C | 32.7°C | 105 mm | 48% | 2 m/s | 6.2 |
| 2011 | 38.9°C | 22.4°C | 30.7°C | 199 mm | 60% | 1.9 m/s | 5.5 |
| 2010 | 42.3°C | 23.0°C | 32.7°C | 209 mm | 60% | 1.8 m/s | 5.9 |
| 2009 | 41.0°C | 21.6°C | 31.3°C | 177 mm | 58% | 2.3 m/s | 5.7 |
| 2008 | 41.0°C | 23.6°C | 32.3°C | 116 mm | 52% | 1.8 m/s | 5.6 |
| 2007 | 41.4°C | 22.5°C | 31.9°C | 176 mm | 54% | 1.7 m/s | 6.4 |
| 2006 | 40.8°C | 22.2°C | 31.5°C | 143 mm | 55% | 2.2 m/s | 5.6 |
| 2005 | 42.0°C | 22.2°C | 32.1°C | 94 mm | 50% | 1.9 m/s | 5.8 |
| 2004 | 42.0°C | 19.7°C | 30.8°C | 97 mm | 51% | 2 m/s | 5.5 |
| 2003 | 41.3°C | 21.3°C | 31.3°C | 93 mm | 48% | 1.9 m/s | 6.2 |
| 2002 | 42.2°C | 20.7°C | 31.4°C | 116 mm | 62% | 2.5 m/s | 5.7 |
| 2001 | 40.2°C | 22.5°C | 31.4°C | 119 mm | 58% | 2.1 m/s | 5.6 |
| 2000 | 39.6°C | 22.3°C | 31.0°C | 152 mm | 64% | 2.1 m/s | 5.3 |
| 1999 | 41.5°C | 23.2°C | 32.3°C | 220 mm | 59% | 1.9 m/s | 5.4 |
| 1998 | 42.9°C | 22.4°C | 32.7°C | 81 mm | 52% | 2.1 m/s | 6.1 |
| 1997 | 43.7°C | 19.2°C | 31.4°C | 75 mm | 38% | 2.1 m/s | 6.6 |
| 1996 | 43.0°C | 21.0°C | 32.0°C | 86 mm | 43% | 1.8 m/s | 5.9 |
| 1995 🔥 | 44.6°C | 25.0°C | 34.8°C | 42 mm | 37% | 2.1 m/s | 6.8 |
| 1994 | 45.4°C | 21.9°C | 33.6°C | 48 mm | 37% | 2.2 m/s | 6.8 |
| 1993 | 44.0°C | 23.7°C | 33.9°C | 39 mm | 44% | 2.1 m/s | 6.3 |
| 1992 | 41.9°C | 20.9°C | 31.4°C | 97 mm | 46% | 1.9 m/s | 6.1 |
| 1991 | 44.8°C | 23.3°C | 34.0°C | 51 mm | 42% | 2.4 m/s | 6.3 |
| 1990 | 40.6°C | 23.6°C | 32.1°C | 92 mm | 49% | 2.1 m/s | 5.7 |
| 1989 | 45.0°C | 21.4°C | 33.2°C | 112 mm | 42% | 2.7 m/s | 6.1 |
| 1988 | 43.6°C | 23.3°C | 33.4°C | 82 mm | 49% | 2.1 m/s | 6.6 |
| 1987 | 42.5°C | 21.0°C | 31.8°C | 86 mm | 41% | 1.6 m/s | 6.9 |
| 1986 | 41.2°C | 19.8°C | 30.5°C | 94 mm | 44% | 1.8 m/s | 6.4 |
| 1985 | 42.7°C | 22.2°C | 32.5°C | 75 mm | 44% | 2 m/s | 6.5 |
| 1984 | 41.9°C | 21.5°C | 31.7°C | 168 mm | 55% | 2.6 m/s | 5.9 |
| 1983 | 41.8°C | 22.2°C | 32.0°C | 110 mm | 51% | 1.7 m/s | — |
| 1982 | 42.8°C | 20.8°C | 31.8°C | 57 mm | 46% | 1.6 m/s | — |
| 1981 | 39.1°C | 22.9°C | 31.0°C | 282 mm | 63% | 1.7 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 41.8°C with lows near 22.2°C (mean 32°C), based on 45 years of NASA POWER data.
May averages 144 mm of rainfall in Kishanganj, a relatively wet time of year. The wettest on record was 340 mm in 2021.
The hottest May reached 45.4°C in 1994. The coldest dipped to 19.2°C in 1997.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have fallen by about 0.2°C. Daytime highs moved from 41.7°C to 41°C and overnight lows from 21.9°C to 22.2°C over the same span.
May is one of the warmer months of the year in Kishanganj and a relatively wet time of year, so plan for around 41.8°C daytime highs and 22.2°C at night.
Not quite — May is the 11th coolest month in Kishanganj, averaging 32°C.
For May in Kishanganj, pack light, breathable clothing and sun protection, with typical highs of 41.8°C and lows of 22.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 53% — relatively dry.
Average wind speed in May is 2 m/s. The windiest May on record averaged 2.7 m/s (1989).
The wettest May on record was 2021 with 340 mm. On average, May sees 144 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 Kishanganj behaves each May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
