May is one of the warmer months of the year in Tiruchirappalli, with average highs near 37°C and lows around 25.9°C (mean 31.5°C). It is about average for rainfall, averaging 68 mm of rainfall and 60% relative humidity across the period.
May is one of the warmer months of the year in Tiruchirappalli. Across 45 years of records, the warmest May in Tiruchirappalli was 2019 — when the month averaged 33.8°C — while the coldest was 2004 at 28.4°C. Typical May days reach 37°C with nights near 25.9°C. The long-term trend is cooling, about 0.3°C per decade.
May is about average for rainfall in Tiruchirappalli, averaging 68 mm of rainfall. The wettest May on record was 2004 with 216 mm, while the driest was 1991 at 1 mm.
Relative humidity in Tiruchirappalli during May averages 60%. The most humid May was 2004 at 76%, and the least humid was 1986 at 49%.
May receives about 6.1 kWh/m²/day of solar energy in Tiruchirappalli. The sunniest May was 2001 at 6.7 kWh/m²/day, and the cloudiest was 2024 at 5.3.
Average wind speed in Tiruchirappalli during May is 2.7 m/s. The windiest May was 1989 at 3.5 m/s, while the calmest was 2018 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 32.2°C | 31.8°C | 31.0°C | 31.2°C | 31.1°C | -1.1°C |
| Avg High | 38.1°C | 37.5°C | 36.4°C | 36.5°C | 36.3°C | -1.8°C |
| Avg Low | 26.2°C | 26.0°C | 25.7°C | 26.0°C | 25.9°C | -0.3°C |
| Avg Rain | 39 mm | 55 mm | 78 mm | 79 mm | 96 mm | +57 mm |
May temperatures in Tiruchirappalli have fallen by about 1.2°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 20.6°C (2015) to a record high of 43.5°C (2024).
Rainfall in May is about average for rainfall, averaging 68 mm, with a wettest year of 216 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 Tiruchirappalli
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Tiruchirappalli. That said, May — with days averaging 37°C and nights around 25.9°C (mean 31.5°C) and moderate rainfall (68 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 | 35.0°C | 30.3°C | 25.7°C | 38.1°C | 23.8°C | 124 mm | 67% | 2.6 m/s | 5.5 |
| 2024 | 36.4°C | 31.5°C | 26.6°C | 43.5°C | 24.5°C | 142 mm | 66% | 2.4 m/s | 5.3 |
| 2023 | 34.7°C | 30.0°C | 25.3°C | 39.0°C | 23.5°C | 120 mm | 71% | 2.1 m/s | 5.8 |
| 2022 | 36.3°C | 30.8°C | 25.3°C | 39.4°C | 23.5°C | 87 mm | 65% | 2.8 m/s | 5.6 |
| 2021 | 36.0°C | 30.6°C | 25.3°C | 38.6°C | 23.3°C | 84 mm | 65% | 2.7 m/s | 5.9 |
| 2020 | 39.5°C | 33.4°C | 27.4°C | 42.9°C | 25.4°C | 21 mm | 53% | 2.8 m/s | 6 |
| 2019 🔥 | 39.9°C | 33.8°C | 27.8°C | 42.7°C | 25.7°C | 22 mm | 52% | 2.4 m/s | 6.2 |
| 2018 | 34.8°C | 30.1°C | 25.4°C | 37.9°C | 23.8°C | 96 mm | 68% | 2 m/s | 5.7 |
| 2017 | 36.7°C | 31.4°C | 26.2°C | 40.5°C | 24.1°C | 57 mm | 62% | 2.5 m/s | 5.9 |
| 2016 | 37.1°C | 31.6°C | 26.2°C | 42.9°C | 24.5°C | 122 mm | 63% | 2.6 m/s | 5.9 |
| 2015 | 34.2°C | 29.4°C | 24.6°C | 37.1°C | 20.6°C | 133 mm | 72% | 2.2 m/s | 5.7 |
| 2014 | 35.4°C | 30.4°C | 25.4°C | 39.3°C | 24.1°C | 128 mm | 68% | 2.3 m/s | 5.9 |
| 2013 | 37.9°C | 32.5°C | 27.1°C | 42.8°C | 24.3°C | 34 mm | 53% | 3.2 m/s | 6 |
| 2012 | 35.1°C | 30.3°C | 25.4°C | 41.0°C | 24.5°C | 69 mm | 66% | 2.6 m/s | 6.1 |
| 2011 | 37.0°C | 31.2°C | 25.5°C | 39.6°C | 23.3°C | 40 mm | 61% | 2.4 m/s | 6.6 |
| 2010 | 36.9°C | 31.5°C | 26.1°C | 41.2°C | 24.7°C | 87 mm | 65% | 2.6 m/s | 6.2 |
| 2009 | 37.5°C | 32.0°C | 26.5°C | 42.6°C | 24.2°C | 34 mm | 57% | 2.7 m/s | 6 |
| 2008 | 36.6°C | 31.0°C | 25.4°C | 41.1°C | 23.5°C | 59 mm | 61% | 2.7 m/s | 6.5 |
| 2007 | 37.3°C | 31.7°C | 26.1°C | 41.6°C | 24.5°C | 44 mm | 59% | 2.6 m/s | 6.4 |
| 2006 | 36.0°C | 30.9°C | 25.8°C | 41.7°C | 23.8°C | 79 mm | 62% | 2.9 m/s | 6.1 |
| 2005 | 36.5°C | 31.1°C | 25.7°C | 40.7°C | 24.3°C | 52 mm | 66% | 2.1 m/s | 6.3 |
| 2004 ❄️ 🌧️ | 32.7°C | 28.4°C | 24.2°C | 39.3°C | 23.2°C | 216 mm | 76% | 2.8 m/s | 5.4 |
| 2003 | 36.6°C | 31.2°C | 25.8°C | 41.2°C | 24.3°C | 99 mm | 63% | 3 m/s | 6 |
| 2002 | 36.5°C | 31.2°C | 25.8°C | 42.0°C | 24.5°C | 75 mm | 63% | 3.1 m/s | 6.2 |
| 2001 | 36.9°C | 31.2°C | 25.4°C | 39.6°C | 23.6°C | 46 mm | 61% | 2.9 m/s | 6.7 |
| 2000 | 37.0°C | 31.7°C | 26.3°C | 41.4°C | 23.2°C | 77 mm | 55% | 2.8 m/s | 6.6 |
| 1999 | 34.4°C | 29.5°C | 24.7°C | 40.0°C | 23.1°C | 84 mm | 67% | 2.8 m/s | 6.3 |
| 1998 | 38.9°C | 33.0°C | 27.1°C | 42.5°C | 23.5°C | 44 mm | 55% | 2.9 m/s | 5.7 |
| 1997 | 38.4°C | 32.2°C | 26.0°C | 42.2°C | 24.4°C | 42 mm | 54% | 2.6 m/s | 5.8 |
| 1996 | 38.1°C | 31.8°C | 25.6°C | 41.5°C | 24.2°C | 21 mm | 59% | 2.5 m/s | 6.4 |
| 1995 | 35.1°C | 29.9°C | 24.7°C | 40.0°C | 23.4°C | 136 mm | 67% | 2.7 m/s | 5.9 |
| 1994 | 36.5°C | 31.2°C | 25.8°C | 40.8°C | 24.0°C | 83 mm | 62% | 2.6 m/s | 6.3 |
| 1993 | 38.9°C | 32.7°C | 26.4°C | 42.8°C | 24.3°C | 33 mm | 54% | 2.8 m/s | 6.3 |
| 1992 | 38.9°C | 32.6°C | 26.3°C | 42.4°C | 24.1°C | 33 mm | 53% | 2.8 m/s | 6.1 |
| 1991 | 39.7°C | 33.5°C | 27.3°C | 42.7°C | 25.7°C | 1 mm | 52% | 2.7 m/s | 6.3 |
| 1990 | 36.4°C | 31.1°C | 25.9°C | 41.5°C | 23.6°C | 69 mm | 59% | 3.4 m/s | 5.5 |
| 1989 | 38.9°C | 32.7°C | 26.4°C | 42.0°C | 24.0°C | 23 mm | 52% | 3.5 m/s | 6.1 |
| 1988 | 37.8°C | 32.1°C | 26.3°C | 41.9°C | 23.6°C | 51 mm | 57% | 2.9 m/s | 6 |
| 1987 | 39.0°C | 32.7°C | 26.3°C | 41.1°C | 23.9°C | 14 mm | 50% | 2.4 m/s | 6.2 |
| 1986 | 39.3°C | 33.0°C | 26.7°C | 43.4°C | 24.8°C | 21 mm | 49% | 3.3 m/s | 6.4 |
| 1985 | 39.0°C | 32.6°C | 26.2°C | 42.4°C | 23.6°C | 14 mm | 51% | 3.4 m/s | 6.1 |
| 1984 | 38.7°C | 32.4°C | 26.1°C | 41.2°C | 24.1°C | 7 mm | 54% | 3 m/s | 6.4 |
| 1983 | 37.8°C | 32.3°C | 26.7°C | 42.7°C | 24.7°C | 61 mm | 55% | 2.4 m/s | — |
| 1982 | 36.6°C | 31.1°C | 25.5°C | 39.9°C | 24.2°C | 72 mm | 61% | 2.2 m/s | — |
| 1981 | 35.8°C | 30.5°C | 25.2°C | 39.8°C | 23.7°C | 92 mm | 64% | 2.5 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 37°C with lows near 25.9°C (mean 31.5°C), based on 45 years of NASA POWER data.
May averages 68 mm of rainfall in Tiruchirappalli, about average for rainfall. The wettest on record was 216 mm in 2004.
The hottest May reached 43.5°C in 2024. The coldest dipped to 20.6°C in 2015.
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 37.6°C to 35.7°C and overnight lows from 25.9°C to 25.6°C over the same span.
May is one of the warmer months of the year in Tiruchirappalli and about average for rainfall, so plan for around 37°C daytime highs and 25.9°C at night.
Not quite — May is the 11th coolest month in Tiruchirappalli, averaging 31.5°C.
For May in Tiruchirappalli, pack light, breathable clothing and sun protection, with typical highs of 37°C and lows of 25.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 60% — moderately humid.
Average wind speed in May is 2.7 m/s. The windiest May on record averaged 3.5 m/s (1989).
The wettest May on record was 2004 with 216 mm. On average, May sees 68 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 Tiruchirappalli 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.
