May is one of the warmer months of the year in Chatra, with average highs near 40.5°C and lows around 25.6°C (mean 33.1°C). It is one of the drier months, averaging 47 mm of rainfall and 34% relative humidity across the period.
May is one of the warmer months of the year in Chatra. Across 45 years of records, the warmest May in Chatra was 1991 — when the month averaged 35.5°C — while the coldest was 2021 at 30.2°C. Typical May days reach 40.5°C with nights near 25.6°C. The long-term May temperature trend is broadly flat.
May is one of the drier months in Chatra, averaging 47 mm of rainfall. The wettest May on record was 2021 with 259 mm, while the driest was 2005 at 6 mm.
Relative humidity in Chatra during May averages 34%. The most humid May was 2021 at 52%, and the least humid was 1991 at 20%.
May receives about 6.7 kWh/m²/day of solar energy in Chatra. The sunniest Mays were 1985 and 1989 at 7.4 kWh/m²/day, and the cloudiest was 2021 at 5.2.
Average wind speed in Chatra during May is 2.4 m/s. The windiest Mays were 1984, 1989 and 2014 at 2.9 m/s, while the calmest was 2012 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 33.0°C | 33.4°C | 33.1°C | 33.5°C | 31.9°C | -1.1°C |
| Avg High | 40.9°C | 41.0°C | 40.2°C | 40.9°C | 38.7°C | -2.2°C |
| Avg Low | 25.1°C | 25.7°C | 25.9°C | 26.1°C | 25.1°C | 0°C |
| Avg Rain | 36 mm | 37 mm | 48 mm | 46 mm | 82 mm | +46 mm |
May temperatures in Chatra have fallen by about 1.2°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 19°C (1987) to a record high of 47.4°C (1988).
Rainfall in May is one of the drier months, averaging 47 mm, with a wettest year of 259 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.4°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A quieter season to visit Chatra
If your dates are flexible, the more temperate months of February and November tend to be the most comfortable for visiting Chatra. That said, May — with days averaging 40.5°C and nights around 25.6°C (mean 33.1°C) and moderate rainfall (47 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 | 37.6°C | 31.4°C | 25.1°C | 43.4°C | 20.8°C | 99 mm | 48% | 2.2 m/s | 5.6 |
| 2024 | 40.2°C | 33.1°C | 25.9°C | 46.9°C | 20.8°C | 34 mm | 33% | 2.5 m/s | 6.3 |
| 2023 | 39.5°C | 32.2°C | 24.9°C | 43.2°C | 21.2°C | 16 mm | 30% | 2.1 m/s | 6.5 |
| 2022 | 40.1°C | 33.0°C | 26.0°C | 44.9°C | 23.5°C | 32 mm | 39% | 2.7 m/s | 6.2 |
| 2021 ❄️ 🌧️ | 35.9°C | 30.2°C | 24.4°C | 40.8°C | 21.6°C | 259 mm | 52% | 2.7 m/s | 5.2 |
| 2020 | 38.8°C | 31.6°C | 24.4°C | 44.4°C | 20.9°C | 51 mm | 42% | 2.2 m/s | 6.4 |
| 2019 | 41.9°C | 34.0°C | 26.2°C | 45.3°C | 20.5°C | 21 mm | 25% | 2.6 m/s | 6.9 |
| 2018 | 40.5°C | 33.0°C | 25.4°C | 43.1°C | 22.9°C | 52 mm | 39% | 2.5 m/s | 6.4 |
| 2017 | 41.9°C | 34.5°C | 27.1°C | 44.9°C | 23.4°C | 35 mm | 33% | 2.2 m/s | 6.6 |
| 2016 | 40.6°C | 33.5°C | 26.4°C | 43.2°C | 24.3°C | 47 mm | 35% | 2.5 m/s | 6.4 |
| 2015 | 41.0°C | 33.4°C | 25.7°C | 44.6°C | 22.8°C | 49 mm | 34% | 2.1 m/s | 6.6 |
| 2014 | 39.4°C | 32.6°C | 25.7°C | 43.1°C | 22.4°C | 85 mm | 37% | 2.9 m/s | 6.7 |
| 2013 | 40.8°C | 33.1°C | 25.4°C | 43.7°C | 21.3°C | 63 mm | 34% | 2.6 m/s | 6.8 |
| 2012 | 41.0°C | 33.5°C | 26.0°C | 43.8°C | 22.4°C | 29 mm | 27% | 2 m/s | 7.2 |
| 2011 | 40.6°C | 33.5°C | 26.3°C | 43.1°C | 23.3°C | 44 mm | 39% | 2.2 m/s | 6.7 |
| 2010 | 41.1°C | 33.9°C | 26.8°C | 44.1°C | 23.9°C | 39 mm | 37% | 2.5 m/s | 6.3 |
| 2009 | 39.0°C | 32.0°C | 25.0°C | 44.3°C | 22.1°C | 87 mm | 44% | 2.6 m/s | 6.4 |
| 2008 | 40.0°C | 32.9°C | 25.7°C | 43.1°C | 23.1°C | 43 mm | 35% | 2.1 m/s | 6.7 |
| 2007 | 38.7°C | 32.2°C | 25.7°C | 42.5°C | 23.7°C | 50 mm | 42% | 2.2 m/s | 6.6 |
| 2006 | 39.2°C | 32.7°C | 26.2°C | 42.9°C | 24.4°C | 87 mm | 46% | 2.3 m/s | 6.3 |
| 2005 | 41.6°C | 33.9°C | 26.1°C | 44.6°C | 22.7°C | 6 mm | 23% | 2.3 m/s | 7.2 |
| 2004 | 41.0°C | 33.7°C | 26.4°C | 44.3°C | 21.1°C | 31 mm | 31% | 2.3 m/s | 6.7 |
| 2003 | 40.8°C | 32.9°C | 25.0°C | 43.4°C | 21.1°C | 24 mm | 27% | 2.4 m/s | 6.9 |
| 2002 | 41.1°C | 33.4°C | 25.7°C | 44.7°C | 22.5°C | 46 mm | 37% | 2.5 m/s | 6.7 |
| 2001 | 40.8°C | 33.8°C | 26.8°C | 44.4°C | 24.1°C | 50 mm | 38% | 2.4 m/s | 6.7 |
| 2000 | 40.0°C | 33.2°C | 26.5°C | 44.5°C | 23.0°C | 52 mm | 40% | 2.5 m/s | 6.3 |
| 1999 | 39.2°C | 32.2°C | 25.3°C | 45.6°C | 22.3°C | 99 mm | 42% | 2.2 m/s | 6.6 |
| 1998 | 41.0°C | 33.1°C | 25.2°C | 45.4°C | 22.0°C | 48 mm | 37% | 2.3 m/s | 7.2 |
| 1997 | 40.7°C | 33.0°C | 25.2°C | 43.6°C | 21.1°C | 25 mm | 24% | 2.3 m/s | 7 |
| 1996 | 42.6°C | 34.6°C | 26.6°C | 46.1°C | 21.6°C | 7 mm | 22% | 2.6 m/s | 7 |
| 1995 | 39.9°C | 32.9°C | 25.8°C | 43.9°C | 22.9°C | 15 mm | 32% | 2.8 m/s | 6.7 |
| 1994 | 41.1°C | 33.5°C | 25.8°C | 45.1°C | 23.1°C | 37 mm | 32% | 2.3 m/s | 7.2 |
| 1993 | 41.7°C | 33.7°C | 25.6°C | 45.1°C | 23.7°C | 34 mm | 29% | 2.3 m/s | 7.1 |
| 1992 | 40.3°C | 32.6°C | 24.8°C | 44.6°C | 21.8°C | 52 mm | 31% | 2.5 m/s | 7.1 |
| 1991 🔥 | 43.6°C | 35.5°C | 27.3°C | 45.5°C | 24.0°C | 7 mm | 20% | 2.7 m/s | 6.9 |
| 1990 | 39.8°C | 32.8°C | 25.8°C | 43.7°C | 23.1°C | 49 mm | 39% | 2.4 m/s | 6.7 |
| 1989 | 40.6°C | 32.6°C | 24.7°C | 44.7°C | 20.3°C | 68 mm | 33% | 2.9 m/s | 7.4 |
| 1988 | 42.4°C | 33.9°C | 25.4°C | 47.4°C | 21.7°C | 16 mm | 29% | 2.4 m/s | 7 |
| 1987 | 40.4°C | 32.8°C | 25.2°C | 44.2°C | 19.0°C | 12 mm | 27% | 2.3 m/s | 6.8 |
| 1986 | 39.4°C | 31.5°C | 23.7°C | 42.7°C | 19.7°C | 63 mm | 37% | 2.3 m/s | 7.3 |
| 1985 | 41.7°C | 33.7°C | 25.6°C | 43.9°C | 23.8°C | 26 mm | 28% | 2.2 m/s | 7.4 |
| 1984 | 42.6°C | 34.1°C | 25.6°C | 45.7°C | 20.8°C | 24 mm | 25% | 2.9 m/s | 7 |
| 1983 | 40.7°C | 33.2°C | 25.7°C | 43.3°C | 22.9°C | 28 mm | 30% | 2.3 m/s | — |
| 1982 | 40.0°C | 32.6°C | 25.2°C | 43.0°C | 21.4°C | 24 mm | 31% | 2.2 m/s | — |
| 1981 | 40.2°C | 32.5°C | 24.8°C | 43.6°C | 22.0°C | 62 mm | 41% | 2.4 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 40.5°C with lows near 25.6°C (mean 33.1°C), based on 45 years of NASA POWER data.
May averages 47 mm of rainfall in Chatra, one of the drier months. The wettest on record was 259 mm in 2021.
The hottest May reached 47.4°C in 1988. The coldest dipped to 19°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have fallen by about 1.2°C. Daytime highs moved from 41°C to 38.7°C and overnight lows from 25.4°C to 25.3°C over the same span.
May is one of the warmer months of the year in Chatra and one of the drier months, so plan for around 40.5°C daytime highs and 25.6°C at night.
Not quite — May is the 12th coolest month in Chatra, averaging 33.1°C.
For May in Chatra, pack light, breathable clothing and sun protection, with typical highs of 40.5°C and lows of 25.6°C.
Relative humidity in May averages 34% — relatively dry.
Average wind speed in May is 2.4 m/s. The windiest May on record averaged 2.9 m/s (1984).
The wettest May on record was 2021 with 259 mm. On average, May sees 47 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 Chatra 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.
