May is one of the warmer months of the year in Kishanganj, with average highs near 37.7°C and lows around 25.5°C (mean 31.6°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 34.2°C — while the coldest was 2020 at 28.6°C. Typical May days reach 37.7°C with nights near 25.5°C. The long-term trend is cooling, about 0.4°C per decade.
May is a relatively wet time of year in Kishanganj, averaging 144 mm of rainfall. The wettest May on record was 2021 with 340 mm, while the driest was 1993 at 39 mm.
Relative humidity in Kishanganj during May averages 53%. The most humid May was 2018 at 74%, and the least humid was 1994 at 37%.
May receives about 5.8 kWh/m²/day of solar energy in Kishanganj. The sunniest May was 1987 at 6.9 kWh/m²/day, and the cloudiest was 2021 at 4.2.
Average wind speed in Kishanganj during May is 2 m/s. The windiest May was 1989 at 2.7 m/s, while the calmest were 1982 and 1987 at 1.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 31.7°C | 32.9°C | 31.4°C | 31.2°C | 30.1°C | -1.6°C |
| Avg High | 38.4°C | 39.6°C | 37.3°C | 37.1°C | 35.5°C | -2.9°C |
| Avg Low | 25.1°C | 26.2°C | 25.5°C | 25.5°C | 24.7°C | -0.4°C |
| Avg Rain | 118 mm | 83 mm | 128 mm | 187 mm | 241 mm | +123 mm |
May temperatures in Kishanganj have fallen by about 1.1°C between 1981–1985 and 2021–2025.
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 0.8°C per decade while lows fell 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 37.7°C and nights around 25.5°C (mean 31.6°C) and higher rainfall (144 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 34.7°C | 29.5°C | 24.3°C | 41.0°C | 21.7°C | 249 mm | 68% | 2.2 m/s | 5 |
| 2024 | 37.6°C | 31.8°C | 25.9°C | 43.8°C | 21.8°C | 193 mm | 53% | 2.4 m/s | 5.3 |
| 2023 | 38.1°C | 31.5°C | 24.9°C | 42.9°C | 22.3°C | 114 mm | 49% | 1.9 m/s | 5.9 |
| 2022 | 35.0°C | 30.1°C | 25.2°C | 38.1°C | 23.3°C | 266 mm | 69% | 1.8 m/s | 5 |
| 2021 🌧️ | 34.1°C | 29.2°C | 24.4°C | 39.3°C | 22.1°C | 340 mm | 67% | 2 m/s | 4.2 |
| 2020 ❄️ | 33.5°C | 28.6°C | 23.7°C | 37.7°C | 21.7°C | 283 mm | 71% | 1.9 m/s | 4.9 |
| 2019 | 39.1°C | 32.2°C | 25.4°C | 42.8°C | 21.2°C | 108 mm | 54% | 2.4 m/s | 5.7 |
| 2018 | 33.7°C | 29.0°C | 24.3°C | 37.5°C | 21.9°C | 189 mm | 74% | 2.1 m/s | 5.3 |
| 2017 | 35.5°C | 30.4°C | 25.4°C | 38.9°C | 22.0°C | 187 mm | 69% | 2 m/s | 5.3 |
| 2016 | 36.6°C | 31.3°C | 26.0°C | 42.4°C | 24.1°C | 272 mm | 59% | 1.8 m/s | 5.2 |
| 2015 | 38.0°C | 31.9°C | 25.9°C | 41.7°C | 23.8°C | 160 mm | 57% | 1.8 m/s | 5.6 |
| 2014 | 38.6°C | 32.3°C | 26.0°C | 43.2°C | 24.1°C | 206 mm | 49% | 2.1 m/s | 5.8 |
| 2013 | 36.7°C | 30.8°C | 24.9°C | 42.8°C | 22.0°C | 235 mm | 56% | 1.7 m/s | 5.4 |
| 2012 | 39.2°C | 32.6°C | 26.0°C | 43.6°C | 21.7°C | 105 mm | 48% | 2 m/s | 6.2 |
| 2011 | 36.4°C | 30.8°C | 25.3°C | 38.9°C | 22.4°C | 199 mm | 60% | 1.9 m/s | 5.5 |
| 2010 | 36.7°C | 31.1°C | 25.5°C | 42.3°C | 23.0°C | 209 mm | 60% | 1.8 m/s | 5.9 |
| 2009 | 36.2°C | 30.5°C | 24.8°C | 41.0°C | 21.6°C | 177 mm | 58% | 2.3 m/s | 5.7 |
| 2008 | 37.4°C | 31.8°C | 26.1°C | 41.0°C | 23.6°C | 116 mm | 52% | 1.8 m/s | 5.6 |
| 2007 | 37.6°C | 31.7°C | 25.8°C | 41.4°C | 22.5°C | 176 mm | 54% | 1.7 m/s | 6.4 |
| 2006 | 37.4°C | 31.8°C | 26.1°C | 40.8°C | 22.2°C | 143 mm | 55% | 2.2 m/s | 5.6 |
| 2005 | 37.9°C | 31.6°C | 25.3°C | 42.0°C | 22.2°C | 94 mm | 50% | 1.9 m/s | 5.8 |
| 2004 | 38.6°C | 32.0°C | 25.5°C | 42.0°C | 19.7°C | 97 mm | 51% | 2 m/s | 5.5 |
| 2003 | 38.2°C | 31.5°C | 24.9°C | 41.3°C | 21.3°C | 93 mm | 48% | 1.9 m/s | 6.2 |
| 2002 | 36.1°C | 30.4°C | 24.6°C | 42.2°C | 20.7°C | 116 mm | 62% | 2.5 m/s | 5.7 |
| 2001 | 37.2°C | 31.6°C | 26.1°C | 40.2°C | 22.5°C | 119 mm | 58% | 2.1 m/s | 5.6 |
| 2000 | 36.1°C | 30.8°C | 25.5°C | 39.6°C | 22.3°C | 152 mm | 64% | 2.1 m/s | 5.3 |
| 1999 | 36.9°C | 31.5°C | 26.1°C | 41.5°C | 23.2°C | 220 mm | 59% | 1.9 m/s | 5.4 |
| 1998 | 38.6°C | 32.3°C | 26.0°C | 42.9°C | 22.4°C | 81 mm | 52% | 2.1 m/s | 6.1 |
| 1997 | 40.2°C | 32.4°C | 24.6°C | 43.7°C | 19.2°C | 75 mm | 38% | 2.1 m/s | 6.6 |
| 1996 | 40.6°C | 33.4°C | 26.3°C | 43.0°C | 21.0°C | 86 mm | 43% | 1.8 m/s | 5.9 |
| 1995 🔥 | 41.3°C | 34.2°C | 27.1°C | 44.6°C | 25.0°C | 42 mm | 37% | 2.1 m/s | 6.8 |
| 1994 | 40.9°C | 33.8°C | 26.7°C | 45.4°C | 21.9°C | 48 mm | 37% | 2.2 m/s | 6.8 |
| 1993 | 40.1°C | 33.4°C | 26.8°C | 44.0°C | 23.7°C | 39 mm | 44% | 2.1 m/s | 6.3 |
| 1992 | 37.8°C | 31.1°C | 24.4°C | 41.9°C | 20.9°C | 97 mm | 46% | 1.9 m/s | 6.1 |
| 1991 | 40.8°C | 33.8°C | 26.7°C | 44.8°C | 23.3°C | 51 mm | 42% | 2.4 m/s | 6.3 |
| 1990 | 38.6°C | 32.7°C | 26.8°C | 40.6°C | 23.6°C | 92 mm | 49% | 2.1 m/s | 5.7 |
| 1989 | 39.5°C | 32.8°C | 26.1°C | 45.0°C | 21.4°C | 112 mm | 42% | 2.7 m/s | 6.1 |
| 1988 | 39.4°C | 32.7°C | 26.0°C | 43.6°C | 23.3°C | 82 mm | 49% | 2.1 m/s | 6.6 |
| 1987 | 39.2°C | 31.7°C | 24.2°C | 42.5°C | 21.0°C | 86 mm | 41% | 1.6 m/s | 6.9 |
| 1986 | 38.1°C | 31.1°C | 24.1°C | 41.2°C | 19.8°C | 94 mm | 44% | 1.8 m/s | 6.4 |
| 1985 | 39.4°C | 32.7°C | 26.0°C | 42.7°C | 22.2°C | 75 mm | 44% | 2 m/s | 6.5 |
| 1984 | 37.3°C | 31.1°C | 24.9°C | 41.9°C | 21.5°C | 168 mm | 55% | 2.6 m/s | 5.9 |
| 1983 | 37.7°C | 31.3°C | 24.9°C | 41.8°C | 22.2°C | 110 mm | 51% | 1.7 m/s | — |
| 1982 | 39.0°C | 31.9°C | 24.8°C | 42.8°C | 20.8°C | 57 mm | 46% | 1.6 m/s | — |
| 1981 | 35.7°C | 30.4°C | 25.1°C | 39.1°C | 22.9°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 37.7°C with lows near 25.5°C (mean 31.6°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 1.1°C. Daytime highs moved from 37.8°C to 35.9°C and overnight lows from 25.1°C to 24.9°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 37.7°C daytime highs and 25.5°C at night.
Not quite — May is the 12th coolest month in Kishanganj, averaging 31.6°C.
For May in Kishanganj, pack light, breathable clothing and sun protection, with typical highs of 37.7°C and lows of 25.5°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.
