May is one of the warmer months of the year in Bongaigaon, with average highs near 35.8°C and lows around 20.9°C (mean 28.4°C). It is a relatively wet time of year, averaging 265 mm of rainfall and 71% relative humidity across the period.
May is one of the warmer months of the year in Bongaigaon. Across 45 years of records, the warmest May in Bongaigaon was 1995 — when the month averaged 31.7°C — while the coldest was 2004 at 26.3°C. Typical May days reach 35.8°C with nights near 20.9°C. The long-term trend is cooling, about 0.4°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.8°C | 29.6°C | 27.6°C | 27.7°C | 28.1°C | -0.7°C |
| Avg High | 37.0°C | 37.6°C | 34.8°C | 34.4°C | 35.2°C | -1.8°C |
| Avg Low | 20.6°C | 21.5°C | 20.5°C | 21.1°C | 20.9°C | +0.3°C |
| Avg Rain | 205 mm | 204 mm | 243 mm | 330 mm | 388 mm | +183 mm |
May temperatures in Bongaigaon have fallen by about 0.5°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 18.7°C (2004) to a record high of 39.9°C (1995).
Rainfall in May is a relatively wet time of year, averaging 265 mm, with a wettest year of 618 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.7°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
A quieter season to visit Bongaigaon
If your dates are flexible, the more temperate months of November and March tend to be the most comfortable for visiting Bongaigaon. That said, May — with days averaging 35.8°C and nights around 20.9°C (mean 28.4°C) and higher rainfall (265 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 | 34.1°C | 20.0°C | 27.0°C | 515 mm | 78% | 1.5 m/s | 4.3 |
| 2024 | 38.7°C | 20.7°C | 29.7°C | 371 mm | 65% | 1.8 m/s | 4.9 |
| 2023 | 36.9°C | 21.7°C | 29.3°C | 158 mm | 68% | 1.7 m/s | 5.6 |
| 2022 | 33.6°C | 20.8°C | 27.2°C | 411 mm | 81% | 1.9 m/s | 4.5 |
| 2021 | 34.7°C | 21.2°C | 27.9°C | 254 mm | 78% | 1.8 m/s | 4.1 |
| 2020 🌧️ | 33.3°C | 21.1°C | 27.2°C | 618 mm | 79% | 1.8 m/s | 4.6 |
| 2019 | 33.5°C | 20.8°C | 27.2°C | 487 mm | 80% | 1.6 m/s | 4.2 |
| 2018 | 33.1°C | 20.4°C | 26.7°C | 352 mm | 80% | 1.7 m/s | 4.5 |
| 2017 | 33.5°C | 22.2°C | 27.9°C | 264 mm | 80% | 1.8 m/s | 4.9 |
| 2016 | 33.9°C | 23.0°C | 28.4°C | 374 mm | 79% | 1.9 m/s | 4.4 |
| 2015 | 34.6°C | 21.1°C | 27.8°C | 305 mm | 79% | 2 m/s | 4.7 |
| 2014 | 37.5°C | 21.6°C | 29.5°C | 273 mm | 68% | 1.6 m/s | 4.7 |
| 2013 | 35.2°C | 20.0°C | 27.6°C | 488 mm | 77% | 1.5 m/s | 4.5 |
| 2012 | 35.0°C | 19.7°C | 27.3°C | 209 mm | 72% | 1.4 m/s | 5.4 |
| 2011 | 33.8°C | 20.1°C | 26.9°C | 223 mm | 76% | 1.8 m/s | 4.8 |
| 2010 | 34.3°C | 21.9°C | 28.1°C | 330 mm | 79% | 1.8 m/s | 4.7 |
| 2009 | 36.1°C | 21.3°C | 28.7°C | 287 mm | 71% | 1.5 m/s | 4.8 |
| 2008 | 35.1°C | 21.3°C | 28.2°C | 165 mm | 72% | 1.5 m/s | 5.4 |
| 2007 | 36.0°C | 21.6°C | 28.8°C | 140 mm | 71% | 1.6 m/s | 5.4 |
| 2006 | 34.0°C | 20.7°C | 27.4°C | 316 mm | 75% | 1.6 m/s | 5 |
| 2005 | 33.8°C | 20.4°C | 27.1°C | 255 mm | 76% | 1.6 m/s | 4.9 |
| 2004 ❄️ | 33.9°C | 18.7°C | 26.3°C | 184 mm | 76% | 1.6 m/s | 4.7 |
| 2003 | 34.5°C | 19.9°C | 27.2°C | 158 mm | 71% | 1.4 m/s | 5.4 |
| 2002 | 34.7°C | 19.3°C | 27.0°C | 234 mm | 75% | 1.5 m/s | 5.2 |
| 2001 | 34.4°C | 20.4°C | 27.4°C | 324 mm | 76% | 1.6 m/s | 5.2 |
| 2000 | 35.1°C | 21.4°C | 28.2°C | 367 mm | 77% | 1.5 m/s | 4.9 |
| 1999 | 37.9°C | 21.6°C | 29.8°C | 262 mm | 68% | 1.5 m/s | 4.8 |
| 1998 | 38.6°C | 21.3°C | 29.9°C | 151 mm | 64% | 1.5 m/s | 5.3 |
| 1997 | 38.2°C | 20.1°C | 29.1°C | 212 mm | 56% | 1.7 m/s | 5 |
| 1996 | 36.4°C | 22.3°C | 29.4°C | 331 mm | 70% | 1.5 m/s | 4.6 |
| 1995 🔥 | 39.9°C | 23.5°C | 31.7°C | 142 mm | 55% | 1.5 m/s | 5.5 |
| 1994 | 38.4°C | 21.7°C | 30.1°C | 163 mm | 61% | 1.6 m/s | 5.2 |
| 1993 | 35.4°C | 21.6°C | 28.5°C | 258 mm | 71% | 1.5 m/s | 4.5 |
| 1992 | 37.2°C | 19.3°C | 28.2°C | 211 mm | 62% | 1.5 m/s | 5.1 |
| 1991 | 38.7°C | 23.2°C | 30.9°C | 166 mm | 62% | 1.7 m/s | 4.4 |
| 1990 | 35.2°C | 20.7°C | 27.9°C | 146 mm | 70% | 1.7 m/s | 5.3 |
| 1989 | 36.3°C | 19.2°C | 27.7°C | 247 mm | 66% | 1.8 m/s | 5.4 |
| 1988 | 35.7°C | 21.7°C | 28.7°C | 427 mm | 71% | 1.7 m/s | 5 |
| 1987 | 38.3°C | 19.7°C | 29.0°C | 110 mm | 58% | 1.4 m/s | 6.1 |
| 1986 | 39.8°C | 21.1°C | 30.4°C | 80 mm | 52% | 1.6 m/s | 5.9 |
| 1985 | 37.5°C | 21.8°C | 29.6°C | 99 mm | 59% | 1.8 m/s | 4.8 |
| 1984 | 36.3°C | 20.6°C | 28.4°C | 236 mm | 69% | 1.9 m/s | 4.4 |
| 1983 | 39.5°C | 19.5°C | 29.5°C | 133 mm | 65% | 1.6 m/s | — |
| 1982 | 35.3°C | 20.0°C | 27.7°C | 216 mm | 72% | 1.5 m/s | — |
| 1981 | 34.4°C | 22.0°C | 28.2°C | 293 mm | 77% | 1.6 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 35.8°C with lows near 20.9°C (mean 28.4°C), based on 45 years of NASA POWER data.
May averages 265 mm of rainfall in Bongaigaon, a relatively wet time of year. The wettest on record was 618 mm in 2020.
The hottest May reached 39.9°C in 1995. The coldest dipped to 18.7°C in 2004.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have fallen by about 0.5°C. Daytime highs moved from 36.6°C to 35.6°C and overnight lows from 20.8°C to 20.9°C over the same span.
May is one of the warmer months of the year in Bongaigaon and a relatively wet time of year, so plan for around 35.8°C daytime highs and 20.9°C at night.
Not quite — May is the 9th coolest month in Bongaigaon, averaging 28.4°C.
For May in Bongaigaon, pack light, breathable clothing and sun protection, with typical highs of 35.8°C and lows of 20.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 71% — moderately humid.
Average wind speed in May is 1.6 m/s. The windiest May on record averaged 2 m/s (2015).
The wettest May on record was 2020 with 618 mm. On average, May sees 265 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 Bongaigaon 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.
