May is one of the warmer months of the year in Birbhum, with average highs near 39.5°C and lows around 26.1°C (mean 32.8°C). It is a relatively wet time of year, averaging 111 mm of rainfall and 54% relative humidity across the period.
May is one of the warmer months of the year in Birbhum. Across 45 years of records, the warmest May in Birbhum was 1991 — when the month averaged 35.9°C — while the coldest was 1981 at 30.1°C. Typical May days reach 39.5°C with nights near 26.1°C. The long-term trend is cooling, about 0.2°C per decade.
May is a relatively wet time of year in Birbhum, averaging 111 mm of rainfall. The wettest May on record was 1981 with 291 mm, while the driest was 1991 at 16 mm.
Relative humidity in Birbhum during May averages 54%. The most humid May was 1981 at 71%, and the least humid was 1996 at 37%.
May receives about 5.9 kWh/m²/day of solar energy in Birbhum. The sunniest Mays were 1992 and 2004 at 6.4 kWh/m²/day, and the cloudiest was 2013 at 5.
Average wind speed in Birbhum during May is 2.3 m/s. The windiest May was 1989 at 3.2 m/s, while the calmest was 2008 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 32.7°C | 33.8°C | 32.5°C | 32.8°C | 31.9°C | -0.8°C |
| Avg High | 39.8°C | 41.0°C | 38.9°C | 39.3°C | 38.1°C | -1.7°C |
| Avg Low | 25.6°C | 26.6°C | 26.2°C | 26.3°C | 25.7°C | +0.1°C |
| Avg Rain | 100 mm | 71 mm | 124 mm | 125 mm | 149 mm | +48 mm |
May temperatures in Birbhum have fallen by about 0.7°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 18.7°C (1986) to a record high of 47.8°C (1988).
Rainfall in May is a relatively wet time of year, averaging 111 mm, with a wettest year of 291 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.5°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
A quieter season to visit Birbhum
If your dates are flexible, the more temperate months of November and February tend to be the most comfortable for visiting Birbhum. That said, May — with days averaging 39.5°C and nights around 26.1°C (mean 32.8°C) and higher rainfall (111 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 | 37.5°C | 31.6°C | 25.8°C | 43.0°C | 22.7°C | 147 mm | 61% | 2.2 m/s | 5.4 |
| 2024 | 39.4°C | 32.9°C | 26.5°C | 45.6°C | 23.0°C | 116 mm | 52% | 2.5 m/s | 5.5 |
| 2023 | 39.9°C | 32.9°C | 25.8°C | 44.3°C | 23.7°C | 93 mm | 46% | 1.9 m/s | 5.9 |
| 2022 | 37.7°C | 31.7°C | 25.7°C | 42.9°C | 23.9°C | 143 mm | 63% | 2.4 m/s | 5.4 |
| 2021 | 36.3°C | 31.0°C | 25.6°C | 41.4°C | 23.2°C | 226 mm | 63% | 2.5 m/s | 5.1 |
| 2020 | 37.5°C | 31.2°C | 24.8°C | 43.2°C | 22.5°C | 166 mm | 61% | 2.3 m/s | 5.3 |
| 2019 | 41.0°C | 33.5°C | 25.9°C | 43.7°C | 21.3°C | 111 mm | 51% | 2.5 m/s | 6.1 |
| 2018 | 38.0°C | 31.7°C | 25.5°C | 42.1°C | 23.3°C | 62 mm | 61% | 2.4 m/s | 5.3 |
| 2017 | 39.1°C | 32.8°C | 26.4°C | 42.3°C | 23.9°C | 140 mm | 58% | 2 m/s | 5.9 |
| 2016 | 39.8°C | 33.2°C | 26.6°C | 44.4°C | 25.2°C | 110 mm | 52% | 2.2 m/s | 5.5 |
| 2015 | 39.7°C | 32.9°C | 26.1°C | 44.1°C | 23.8°C | 86 mm | 58% | 2.2 m/s | 5.8 |
| 2014 | 40.9°C | 34.1°C | 27.3°C | 46.1°C | 24.0°C | 136 mm | 45% | 2.6 m/s | 5.9 |
| 2013 | 38.5°C | 32.5°C | 26.5°C | 44.7°C | 24.9°C | 225 mm | 60% | 2.3 m/s | 5 |
| 2012 | 40.8°C | 33.8°C | 26.7°C | 45.6°C | 24.1°C | 42 mm | 47% | 2.1 m/s | 6.3 |
| 2011 | 36.7°C | 31.1°C | 25.4°C | 40.0°C | 23.7°C | 189 mm | 67% | 1.9 m/s | 5.8 |
| 2010 | 38.4°C | 32.3°C | 26.2°C | 43.8°C | 23.9°C | 148 mm | 63% | 2.5 m/s | 5.5 |
| 2009 | 37.3°C | 31.4°C | 25.5°C | 43.6°C | 23.0°C | 175 mm | 60% | 2.3 m/s | 5.6 |
| 2008 | 38.6°C | 32.4°C | 26.3°C | 42.6°C | 24.6°C | 132 mm | 56% | 1.7 m/s | 6.1 |
| 2007 | 38.5°C | 32.4°C | 26.3°C | 42.7°C | 24.8°C | 106 mm | 55% | 1.8 m/s | 6.1 |
| 2006 | 37.5°C | 31.8°C | 26.1°C | 42.7°C | 24.5°C | 160 mm | 61% | 2.2 m/s | 6 |
| 2005 | 40.7°C | 33.5°C | 26.2°C | 44.8°C | 22.3°C | 62 mm | 50% | 2.2 m/s | 6.2 |
| 2004 | 41.2°C | 34.0°C | 26.9°C | 45.9°C | 22.0°C | 57 mm | 47% | 2.3 m/s | 6.4 |
| 2003 | 40.2°C | 32.9°C | 25.6°C | 44.0°C | 22.6°C | 87 mm | 48% | 2.1 m/s | 6.1 |
| 2002 | 40.0°C | 33.5°C | 26.9°C | 47.0°C | 24.5°C | 104 mm | 52% | 2.2 m/s | 5.6 |
| 2001 | 37.9°C | 32.0°C | 26.2°C | 40.9°C | 24.1°C | 177 mm | 63% | 2.5 m/s | 5.9 |
| 2000 | 36.9°C | 31.3°C | 25.7°C | 42.2°C | 23.1°C | 182 mm | 67% | 2.2 m/s | 5.7 |
| 1999 | 38.8°C | 32.7°C | 26.6°C | 46.9°C | 23.8°C | 137 mm | 57% | 2.3 m/s | 5.5 |
| 1998 | 40.4°C | 33.5°C | 26.6°C | 45.8°C | 24.3°C | 104 mm | 53% | 2.4 m/s | 6 |
| 1997 | 40.9°C | 33.4°C | 25.9°C | 44.7°C | 20.9°C | 63 mm | 44% | 2.1 m/s | 6 |
| 1996 | 43.9°C | 35.6°C | 27.4°C | 47.6°C | 22.2°C | 19 mm | 37% | 2.7 m/s | 6.1 |
| 1995 | 40.6°C | 33.7°C | 26.7°C | 45.6°C | 24.6°C | 51 mm | 47% | 2.7 m/s | 5.7 |
| 1994 | 41.6°C | 34.2°C | 26.8°C | 45.6°C | 23.9°C | 53 mm | 44% | 2.5 m/s | 6.3 |
| 1993 | 40.4°C | 33.3°C | 26.2°C | 45.6°C | 25.0°C | 92 mm | 53% | 2.5 m/s | 6.3 |
| 1992 | 40.2°C | 32.8°C | 25.5°C | 45.8°C | 23.3°C | 78 mm | 47% | 2.3 m/s | 6.4 |
| 1991 🔥 | 44.1°C | 35.9°C | 27.8°C | 47.1°C | 25.4°C | 16 mm | 40% | 2.6 m/s | 6.3 |
| 1990 | 38.7°C | 32.5°C | 26.2°C | 43.3°C | 23.7°C | 94 mm | 56% | 2.8 m/s | 6.1 |
| 1989 | 40.6°C | 33.2°C | 25.8°C | 45.8°C | 22.1°C | 75 mm | 46% | 3.2 m/s | 6 |
| 1988 | 41.5°C | 34.2°C | 26.8°C | 47.8°C | 24.1°C | 56 mm | 50% | 2.8 m/s | 6.3 |
| 1987 | 39.7°C | 32.3°C | 24.8°C | 44.4°C | 20.6°C | 92 mm | 50% | 1.9 m/s | 6.3 |
| 1986 | 38.4°C | 31.3°C | 24.2°C | 40.8°C | 18.7°C | 145 mm | 53% | 1.9 m/s | 6.2 |
| 1985 | 41.2°C | 33.8°C | 26.4°C | 44.7°C | 23.9°C | 42 mm | 47% | 2.7 m/s | 6.1 |
| 1984 | 40.5°C | 33.0°C | 25.5°C | 45.3°C | 21.1°C | 79 mm | 54% | 2.5 m/s | 6.1 |
| 1983 | 40.3°C | 33.3°C | 26.2°C | 43.3°C | 24.7°C | 70 mm | 51% | 2.7 m/s | — |
| 1982 | 40.5°C | 33.2°C | 25.9°C | 43.2°C | 21.9°C | 52 mm | 46% | 2.3 m/s | — |
| 1981 ❄️ 🌧️ | 35.6°C | 30.1°C | 24.6°C | 41.2°C | 21.6°C | 291 mm | 71% | 2.5 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 39.5°C with lows near 26.1°C (mean 32.8°C), based on 45 years of NASA POWER data.
May averages 111 mm of rainfall in Birbhum, a relatively wet time of year. The wettest on record was 291 mm in 1981.
The hottest May reached 47.8°C in 1988. The coldest dipped to 18.7°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have fallen by about 0.7°C — but days and nights have moved in opposite directions. Overnight lows rose from 25.7°C to 25.9°C while daytime highs eased from 39.6°C to 38.2°C, narrowing the gap between day and night.
May is one of the warmer months of the year in Birbhum and a relatively wet time of year, so plan for around 39.5°C daytime highs and 26.1°C at night.
Not quite — May is the 12th coolest month in Birbhum, averaging 32.8°C.
For May in Birbhum, pack light, breathable clothing and sun protection, with typical highs of 39.5°C and lows of 26.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 54% — relatively dry.
Average wind speed in May is 2.3 m/s. The windiest May on record averaged 3.2 m/s (1989).
The wettest May on record was 1981 with 291 mm. On average, May sees 111 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 Birbhum 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.
