May is one of the warmer months of the year in Tiruvallur, with average highs near 36.6°C and lows around 27.8°C (mean 32.2°C). It is one of the drier months, averaging 51 mm of rainfall and 64% relative humidity across the period.
May is one of the warmer months of the year in Tiruvallur. Across 45 years of records, the warmest Mays in Tiruvallur were 1996 and 2003 — when the month averaged 34°C — while the coldest was 2004 at 29.1°C. Typical May days reach 36.6°C with nights near 27.8°C. The long-term trend is cooling, about 0.2°C per decade.
May is one of the drier months in Tiruvallur, averaging 51 mm of rainfall. The wettest May on record was 2004 with 274 mm, while the driest was 1991 at 1 mm.
Relative humidity in Tiruvallur during May averages 64%. The most humid May was 2004 at 80%, and the least humid was 1986 at 54%.
May receives about 6.1 kWh/m²/day of solar energy in Tiruvallur. The sunniest May was 2001 at 6.8 kWh/m²/day, and the cloudiest were 1990 and 2025 at 5.3.
Average wind speed in Tiruvallur during May is 3.7 m/s. The windiest May was 1991 at 4.4 m/s, while the calmest was 2023 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 32.6°C | 32.2°C | 32.2°C | 32.1°C | 31.6°C | -1°C |
| Avg High | 37.3°C | 36.7°C | 36.5°C | 36.4°C | 35.7°C | -1.6°C |
| Avg Low | 27.9°C | 27.7°C | 27.8°C | 27.8°C | 27.6°C | -0.3°C |
| Avg Rain | 17 mm | 69 mm | 52 mm | 52 mm | 69 mm | +52 mm |
May temperatures in Tiruvallur have fallen by about 0.6°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 24.3°C (1995) to a record high of 43.3°C (1991).
Rainfall in May is one of the drier months, averaging 51 mm, with a wettest year of 274 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.3°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
A quieter season to visit Tiruvallur
If your dates are flexible, the more temperate months of January and February tend to be the most comfortable for visiting Tiruvallur. That said, May — with days averaging 36.6°C and nights around 27.8°C (mean 32.2°C) and moderate rainfall (51 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 | 35.1°C | 31.1°C | 27.2°C | 37.3°C | 26.2°C | 96 mm | 68% | 3.2 m/s | 5.3 |
| 2024 | 36.8°C | 32.7°C | 28.7°C | 41.1°C | 26.4°C | 37 mm | 65% | 3.2 m/s | 5.7 |
| 2023 | 35.9°C | 31.7°C | 27.5°C | 41.1°C | 25.9°C | 64 mm | 69% | 2.7 m/s | 5.8 |
| 2022 | 34.9°C | 30.9°C | 26.9°C | 38.9°C | 25.0°C | 75 mm | 70% | 3.2 m/s | 5.4 |
| 2021 | 35.4°C | 31.4°C | 27.5°C | 38.4°C | 25.5°C | 53 mm | 67% | 3.5 m/s | 6.1 |
| 2020 | 36.0°C | 31.8°C | 27.6°C | 40.5°C | 25.6°C | 91 mm | 69% | 3.1 m/s | 6.4 |
| 2019 | 37.1°C | 32.8°C | 28.4°C | 41.4°C | 27.0°C | 12 mm | 65% | 3.8 m/s | 6.2 |
| 2018 | 35.5°C | 31.7°C | 27.8°C | 38.3°C | 26.0°C | 21 mm | 67% | 3.5 m/s | 6.1 |
| 2017 | 37.6°C | 33.0°C | 28.4°C | 41.4°C | 26.7°C | 14 mm | 60% | 3.5 m/s | 6.2 |
| 2016 | 36.2°C | 31.7°C | 27.3°C | 39.9°C | 26.0°C | 148 mm | 67% | 3.9 m/s | 6 |
| 2015 | 34.8°C | 30.9°C | 27.0°C | 39.7°C | 25.2°C | 46 mm | 69% | 3.5 m/s | 5.9 |
| 2014 | 35.6°C | 31.5°C | 27.4°C | 39.5°C | 25.8°C | 65 mm | 68% | 3.4 m/s | 6.1 |
| 2013 | 36.7°C | 32.5°C | 28.3°C | 40.4°C | 26.8°C | 47 mm | 62% | 3.7 m/s | 6.1 |
| 2012 | 37.2°C | 32.7°C | 28.1°C | 40.7°C | 26.8°C | 22 mm | 61% | 3.7 m/s | 6.1 |
| 2011 | 36.2°C | 31.8°C | 27.4°C | 39.5°C | 26.3°C | 21 mm | 66% | 3.4 m/s | 6.5 |
| 2010 | 36.7°C | 32.3°C | 27.8°C | 40.2°C | 26.6°C | 129 mm | 67% | 3.8 m/s | 6.3 |
| 2009 | 36.9°C | 32.3°C | 27.7°C | 41.9°C | 26.0°C | 39 mm | 64% | 3.5 m/s | 6.1 |
| 2008 | 38.3°C | 33.2°C | 28.1°C | 41.6°C | 26.9°C | 12 mm | 56% | 3.9 m/s | 6.6 |
| 2007 | 36.8°C | 32.6°C | 28.3°C | 42.2°C | 27.1°C | 13 mm | 60% | 3.6 m/s | 6.3 |
| 2006 | 36.2°C | 31.8°C | 27.5°C | 40.5°C | 25.4°C | 26 mm | 64% | 3.9 m/s | 6.1 |
| 2005 | 35.1°C | 31.1°C | 27.0°C | 39.1°C | 25.7°C | 64 mm | 73% | 3.3 m/s | 6.2 |
| 2004 ❄️ 🌧️ | 32.0°C | 29.1°C | 26.1°C | 35.8°C | 24.3°C | 274 mm | 80% | 3 m/s | 5.7 |
| 2003 | 39.2°C | 34.0°C | 28.7°C | 42.7°C | 26.5°C | 19 mm | 56% | 3.9 m/s | 6 |
| 2002 | 37.5°C | 33.0°C | 28.4°C | 40.8°C | 26.4°C | 30 mm | 59% | 3.8 m/s | 6.4 |
| 2001 | 37.5°C | 32.8°C | 28.0°C | 40.7°C | 26.3°C | 19 mm | 59% | 3.9 m/s | 6.8 |
| 2000 | 35.9°C | 32.0°C | 28.2°C | 40.8°C | 26.3°C | 26 mm | 61% | 3.6 m/s | 6.2 |
| 1999 | 35.0°C | 30.8°C | 26.7°C | 38.7°C | 25.7°C | 33 mm | 66% | 3.5 m/s | 6.2 |
| 1998 | 37.8°C | 33.0°C | 28.3°C | 41.8°C | 25.8°C | 43 mm | 63% | 3.7 m/s | 6 |
| 1997 | 38.1°C | 33.0°C | 28.0°C | 42.7°C | 26.3°C | 8 mm | 57% | 3.7 m/s | 6.3 |
| 1996 🔥 | 39.3°C | 34.0°C | 28.6°C | 43.0°C | 27.1°C | 20 mm | 55% | 3.9 m/s | 6.4 |
| 1995 | 33.5°C | 30.0°C | 26.4°C | 37.8°C | 24.3°C | 211 mm | 74% | 3.5 m/s | 5.6 |
| 1994 | 37.0°C | 32.7°C | 28.5°C | 42.8°C | 26.2°C | 41 mm | 61% | 4 m/s | 6.1 |
| 1993 | 37.8°C | 32.7°C | 27.5°C | 40.6°C | 26.2°C | 60 mm | 62% | 4 m/s | 6.2 |
| 1992 | 37.9°C | 32.9°C | 27.9°C | 41.8°C | 26.1°C | 17 mm | 59% | 3.8 m/s | 6.3 |
| 1991 | 37.2°C | 32.6°C | 28.1°C | 43.3°C | 26.9°C | 1 mm | 64% | 4.4 m/s | 6.4 |
| 1990 | 33.5°C | 30.0°C | 26.5°C | 38.2°C | 25.2°C | 260 mm | 74% | 4 m/s | 5.3 |
| 1989 | 38.3°C | 33.3°C | 28.3°C | 41.9°C | 26.5°C | 8 mm | 56% | 4 m/s | 6.2 |
| 1988 | 37.4°C | 32.8°C | 28.2°C | 41.8°C | 25.9°C | 33 mm | 61% | 3.7 m/s | 5.6 |
| 1987 | 37.3°C | 32.4°C | 27.5°C | 39.8°C | 25.6°C | 3 mm | 60% | 3.8 m/s | 6.2 |
| 1986 | 38.9°C | 33.9°C | 28.8°C | 42.5°C | 26.6°C | 6 mm | 54% | 4.2 m/s | 6.5 |
| 1985 | 37.5°C | 32.7°C | 28.0°C | 43.1°C | 25.9°C | 8 mm | 57% | 4.1 m/s | 6.3 |
| 1984 | 36.9°C | 32.2°C | 27.5°C | 40.2°C | 25.1°C | 2 mm | 62% | 4.1 m/s | 6.4 |
| 1983 | 37.0°C | 32.6°C | 28.1°C | 40.4°C | 26.2°C | 22 mm | 62% | 4.3 m/s | — |
| 1982 | 36.5°C | 32.1°C | 27.6°C | 40.0°C | 25.8°C | 9 mm | 61% | 3.4 m/s | — |
| 1981 | 36.0°C | 31.6°C | 27.2°C | 39.6°C | 25.0°C | 62 mm | 65% | 3.6 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 36.6°C with lows near 27.8°C (mean 32.2°C), based on 45 years of NASA POWER data.
May averages 51 mm of rainfall in Tiruvallur, one of the drier months. The wettest on record was 274 mm in 2004.
The hottest May reached 43.3°C in 1991. The coldest dipped to 24.3°C in 1995.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have fallen by about 0.6°C. Daytime highs moved from 36.8°C to 35.6°C and overnight lows from 27.7°C to 27.6°C over the same span.
May is one of the warmer months of the year in Tiruvallur and one of the drier months, so plan for around 36.6°C daytime highs and 27.8°C at night.
Not quite — May is the 12th coolest month in Tiruvallur, averaging 32.2°C.
For May in Tiruvallur, pack light, breathable clothing and sun protection, with typical highs of 36.6°C and lows of 27.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 64% — moderately humid.
Average wind speed in May is 3.7 m/s. The windiest May on record averaged 4.4 m/s (1991).
The wettest May on record was 2004 with 274 mm. On average, May sees 51 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 Tiruvallur 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.
