May is one of the warmer months of the year in East Champaran, with average highs near 44.8°C and lows around 23°C (mean 33.9°C). It is one of the drier months, averaging 59 mm of rainfall and 35% relative humidity across the period.
May is one of the warmer months of the year in East Champaran. Across 45 years of records, the warmest Mays in East Champaran were 1991 and 1993 — when the month averaged 35.7°C — while the coldest was 1986 at 31.5°C. Typical May days reach 44.8°C with nights near 23°C. The long-term May temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 33.5°C | 34.9°C | 33.7°C | 34.1°C | 33.2°C | -0.3°C |
| Avg High | 45.0°C | 46.3°C | 44.1°C | 44.5°C | 43.7°C | -1.3°C |
| Avg Low | 21.9°C | 23.4°C | 23.2°C | 23.6°C | 22.8°C | +0.9°C |
| Avg Rain | 40 mm | 24 mm | 69 mm | 68 mm | 115 mm | +75 mm |
May temperatures in East Champaran have fallen by about 0.7°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 19.2°C (2004) to a record high of 48.1°C (1998).
Rainfall in May is one of the drier months, averaging 59 mm, with a wettest year of 290 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.4°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A quieter season to visit East Champaran
If your dates are flexible, the more temperate months of November and February tend to be the most comfortable for visiting East Champaran. That said, May — with days averaging 44.8°C and nights around 23°C (mean 33.9°C) and moderate rainfall (59 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 | 43.3°C | 23.8°C | 33.6°C | 57 mm | 45% | 2.7 m/s | 5.5 |
| 2024 | 46.2°C | 21.7°C | 34.0°C | 83 mm | 41% | 2.7 m/s | 5.8 |
| 2023 | 43.6°C | 22.7°C | 33.1°C | 45 mm | 36% | 2.1 m/s | 6.3 |
| 2022 | 42.0°C | 23.9°C | 32.9°C | 118 mm | 48% | 2 m/s | 5.9 |
| 2021 🌧️ | 42.0°C | 22.0°C | 32.0°C | 290 mm | 51% | 2.4 m/s | 4.7 |
| 2020 | 44.9°C | 22.5°C | 33.7°C | 96 mm | 46% | 2.2 m/s | 6.1 |
| 2019 | 45.7°C | 21.2°C | 33.4°C | 22 mm | 27% | 2.7 m/s | 6.7 |
| 2018 | 42.8°C | 24.2°C | 33.5°C | 48 mm | 45% | 2.6 m/s | 5.9 |
| 2017 | 43.9°C | 22.9°C | 33.4°C | 94 mm | 41% | 2.3 m/s | 6 |
| 2016 | 44.0°C | 25.4°C | 34.7°C | 96 mm | 38% | 2.2 m/s | 5.8 |
| 2015 | 45.7°C | 23.3°C | 34.5°C | 31 mm | 31% | 1.9 m/s | 6.5 |
| 2014 | 45.3°C | 24.2°C | 34.8°C | 105 mm | 34% | 2.7 m/s | 6.7 |
| 2013 | 44.0°C | 22.7°C | 33.3°C | 96 mm | 32% | 1.9 m/s | 6.1 |
| 2012 | 46.3°C | 24.3°C | 35.3°C | 7 mm | 23% | 2.2 m/s | 6.9 |
| 2011 | 43.0°C | 23.8°C | 33.4°C | 108 mm | 44% | 2.3 m/s | 6.3 |
| 2010 | 44.6°C | 24.4°C | 34.5°C | 76 mm | 39% | 2.6 m/s | 6.4 |
| 2009 | 44.6°C | 24.1°C | 34.3°C | 76 mm | 41% | 2.9 m/s | 6.3 |
| 2008 | 42.2°C | 24.5°C | 33.4°C | 102 mm | 39% | 1.9 m/s | 6.3 |
| 2007 | 43.6°C | 25.0°C | 34.3°C | 70 mm | 41% | 2.3 m/s | 6.6 |
| 2006 | 43.3°C | 25.7°C | 34.5°C | 79 mm | 43% | 2.3 m/s | 5.9 |
| 2005 | 45.5°C | 21.3°C | 33.4°C | 21 mm | 30% | 2.1 m/s | 6.9 |
| 2004 | 44.5°C | 19.2°C | 31.8°C | 66 mm | 37% | 2.2 m/s | 6.7 |
| 2003 | 45.1°C | 20.5°C | 32.8°C | 7 mm | 27% | 2.6 m/s | 6.7 |
| 2002 | 44.1°C | 23.5°C | 33.8°C | 123 mm | 47% | 2.9 m/s | 6 |
| 2001 | 43.6°C | 25.0°C | 34.3°C | 74 mm | 40% | 2.5 m/s | 6.4 |
| 2000 | 44.9°C | 22.9°C | 33.9°C | 69 mm | 41% | 2.4 m/s | 6 |
| 1999 | 46.2°C | 22.4°C | 34.3°C | 56 mm | 37% | 2.3 m/s | 6.4 |
| 1998 | 48.1°C | 23.2°C | 35.6°C | 23 mm | 33% | 2.6 m/s | 6.9 |
| 1997 | 45.5°C | 21.0°C | 33.3°C | 27 mm | 21% | 2.5 m/s | 6.9 |
| 1996 | 46.7°C | 23.9°C | 35.3°C | 3 mm | 19% | 2.2 m/s | 7 |
| 1995 | 46.3°C | 25.0°C | 35.6°C | 2 mm | 22% | 2.7 m/s | 7.4 |
| 1994 | 45.2°C | 22.5°C | 33.9°C | 29 mm | 26% | 2.5 m/s | 6.8 |
| 1993 | 47.1°C | 24.3°C | 35.7°C | 32 mm | 29% | 2.3 m/s | 7.2 |
| 1992 | 45.6°C | 22.0°C | 33.8°C | 43 mm | 28% | 2.6 m/s | 6.8 |
| 1991 🔥 | 46.7°C | 24.8°C | 35.7°C | 7 mm | 21% | 2.6 m/s | 7.2 |
| 1990 | 45.8°C | 25.0°C | 35.4°C | 15 mm | 30% | 2.3 m/s | 6.4 |
| 1989 | 45.8°C | 20.2°C | 33.0°C | 41 mm | 31% | 3.4 m/s | 7.3 |
| 1988 | 46.3°C | 22.3°C | 34.3°C | 46 mm | 34% | 2.6 m/s | 7.2 |
| 1987 | 45.9°C | 20.2°C | 33.1°C | 20 mm | 27% | 2.3 m/s | 7 |
| 1986 ❄️ | 42.7°C | 20.3°C | 31.5°C | 46 mm | 32% | 2.4 m/s | 7.2 |
| 1985 | 45.8°C | 24.1°C | 35.0°C | 19 mm | 26% | 2.3 m/s | 7.5 |
| 1984 | 46.7°C | 21.6°C | 34.1°C | 19 mm | 31% | 3.2 m/s | 7 |
| 1983 | 44.7°C | 23.9°C | 34.3°C | 18 mm | 28% | 2.1 m/s | — |
| 1982 | 44.4°C | 19.4°C | 31.9°C | 50 mm | 31% | 2 m/s | — |
| 1981 | 43.0°C | 24.8°C | 33.9°C | 99 mm | 40% | 2.4 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 44.8°C with lows near 23°C (mean 33.9°C), based on 45 years of NASA POWER data.
May averages 59 mm of rainfall in East Champaran, one of the drier months. The wettest on record was 290 mm in 2021.
The hottest May reached 48.1°C in 1998. The coldest dipped to 19.2°C in 2004.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have fallen by about 0.7°C. Daytime highs moved from 44.9°C to 43.4°C and overnight lows from 22.8°C to 22.8°C over the same span.
May is one of the warmer months of the year in East Champaran and one of the drier months, so plan for around 44.8°C daytime highs and 23°C at night.
Not quite — May is the 11th coolest month in East Champaran, averaging 33.9°C.
For May in East Champaran, pack light, breathable clothing and sun protection, with typical highs of 44.8°C and lows of 23°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 35% — relatively dry.
Average wind speed in May is 2.4 m/s. The windiest May on record averaged 3.4 m/s (1989).
The wettest May on record was 2021 with 290 mm. On average, May sees 59 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 East Champaran 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.
