May is one of the warmer months of the year in Tenkasi, with average highs near 36.9°C and lows around 22.3°C (mean 29.6°C). It is a relatively wet time of year, averaging 154 mm of rainfall and 78% relative humidity across the period.
May is one of the warmer months of the year in Tenkasi. Across 45 years of records, the warmest May in Tenkasi was 2024 — when the month averaged 32.3°C — while the coldest was 2001 at 26.5°C. Typical May days reach 36.9°C with nights near 22.3°C. The long-term trend is warming, about 0.2°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.0°C | 30.1°C | 29.0°C | 30.0°C | 29.9°C | +0.9°C |
| Avg High | 36.0°C | 38.0°C | 35.7°C | 37.5°C | 37.2°C | +1.2°C |
| Avg Low | 22.0°C | 22.1°C | 22.2°C | 22.4°C | 22.8°C | +0.8°C |
| Avg Rain | 162 mm | 171 mm | 182 mm | 99 mm | 158 mm | -4 mm |
May temperatures in Tenkasi have risen by about 1°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 20.6°C (2011) to a record high of 41.3°C (1991).
Rainfall in May is a relatively wet time of year, averaging 154 mm, with a wettest year of 510 mm.
A quieter season to visit Tenkasi
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Tenkasi. That said, May — with days averaging 36.9°C and nights around 22.3°C (mean 29.6°C) and higher rainfall (154 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 | 35.5°C | 22.4°C | 28.9°C | 136 mm | 79% | 2.9 m/s | 5 |
| 2024 🔥 | 40.8°C | 23.9°C | 32.3°C | 206 mm | 75% | 2.4 m/s | 4.5 |
| 2023 | 35.8°C | 22.4°C | 29.1°C | 130 mm | 80% | 2 m/s | 5.7 |
| 2022 | 36.2°C | 22.5°C | 29.3°C | 97 mm | 81% | 3.1 m/s | 5.1 |
| 2021 | 35.2°C | 22.2°C | 28.7°C | 248 mm | 85% | 2.3 m/s | 4.9 |
| 2020 | 39.5°C | 23.1°C | 31.3°C | 132 mm | 76% | 2.3 m/s | 5.1 |
| 2019 | 40.8°C | 23.5°C | 32.1°C | 30 mm | 67% | 3 m/s | 5.8 |
| 2018 | 36.0°C | 23.0°C | 29.5°C | 75 mm | 77% | 2.3 m/s | 4.9 |
| 2017 | 39.1°C | 23.4°C | 31.3°C | 85 mm | 72% | 2.7 m/s | 5.4 |
| 2016 | 39.8°C | 22.5°C | 31.1°C | 146 mm | 74% | 2.5 m/s | 5.2 |
| 2015 | 34.3°C | 22.3°C | 28.3°C | 188 mm | 84% | 1.9 m/s | 5.1 |
| 2014 | 36.0°C | 21.9°C | 28.9°C | 190 mm | 84% | 2.2 m/s | 5.3 |
| 2013 | 36.5°C | 23.1°C | 29.8°C | 68 mm | 75% | 3.1 m/s | 5.4 |
| 2012 | 38.0°C | 21.7°C | 29.9°C | 77 mm | 79% | 3 m/s | 5.8 |
| 2011 | 38.7°C | 20.6°C | 29.7°C | 43 mm | 72% | 3.1 m/s | 6 |
| 2010 | 35.9°C | 22.2°C | 29.1°C | 83 mm | 79% | 2.7 m/s | 5.2 |
| 2009 | 39.1°C | 22.7°C | 30.9°C | 122 mm | 74% | 3.1 m/s | 5.5 |
| 2008 | 32.9°C | 21.8°C | 27.3°C | 75 mm | 82% | 2.8 m/s | 6.2 |
| 2007 | 36.9°C | 21.6°C | 29.3°C | 116 mm | 77% | 2.8 m/s | 6 |
| 2006 | 37.7°C | 22.7°C | 30.2°C | 254 mm | 77% | 2.9 m/s | 5.5 |
| 2005 | 34.7°C | 21.7°C | 28.2°C | 177 mm | 83% | 2.1 m/s | 5.6 |
| 2004 🌧️ | 33.8°C | 22.3°C | 28.0°C | 510 mm | 89% | 2.8 m/s | 5.2 |
| 2003 | 35.8°C | 22.9°C | 29.3°C | 98 mm | 78% | 2.9 m/s | 5.7 |
| 2002 | 38.0°C | 22.7°C | 30.4°C | 255 mm | 83% | 2.8 m/s | 5.5 |
| 2001 ❄️ | 31.7°C | 21.3°C | 26.5°C | 180 mm | 87% | 2.5 m/s | 5.7 |
| 2000 | 36.8°C | 22.5°C | 29.7°C | 38 mm | 73% | 3.1 m/s | 6 |
| 1999 | 37.1°C | 22.0°C | 29.5°C | 323 mm | 85% | 2.8 m/s | 5.2 |
| 1998 | 38.3°C | 22.7°C | 30.5°C | 263 mm | 79% | 2.2 m/s | 5.1 |
| 1997 | 36.4°C | 21.6°C | 29.0°C | 109 mm | 76% | 2.4 m/s | 5.2 |
| 1996 | 38.6°C | 22.4°C | 30.5°C | 19 mm | 70% | 3 m/s | 5.4 |
| 1995 | 34.9°C | 21.0°C | 27.9°C | 251 mm | 85% | 2.6 m/s | 5.1 |
| 1994 | 38.0°C | 22.4°C | 30.2°C | 189 mm | 73% | 2.9 m/s | 5.5 |
| 1993 | 38.8°C | 22.4°C | 30.6°C | 131 mm | 72% | 2.6 m/s | 5.3 |
| 1992 | 37.6°C | 22.1°C | 29.9°C | 134 mm | 74% | 2.4 m/s | 5.3 |
| 1991 | 41.3°C | 22.8°C | 32.1°C | 35 mm | 64% | 2.5 m/s | 5.5 |
| 1990 | 39.3°C | 22.0°C | 30.6°C | 255 mm | 79% | 3 m/s | 4.7 |
| 1989 | 37.5°C | 22.4°C | 30.0°C | 130 mm | 76% | 3.2 m/s | 5.1 |
| 1988 | 35.1°C | 23.0°C | 29.0°C | 39 mm | 76% | 3.2 m/s | 5.3 |
| 1987 | 38.0°C | 22.5°C | 30.3°C | 168 mm | 73% | 1.6 m/s | 5.7 |
| 1986 | 35.5°C | 20.8°C | 28.2°C | 139 mm | 80% | 2.8 m/s | 5.5 |
| 1985 | 40.5°C | 22.0°C | 31.2°C | 190 mm | 71% | 2.8 m/s | 5.4 |
| 1984 | 33.7°C | 22.0°C | 27.8°C | 122 mm | 84% | 2.4 m/s | 5.6 |
| 1983 | 37.5°C | 22.5°C | 30.0°C | 77 mm | 73% | 2.5 m/s | — |
| 1982 | 32.3°C | 21.1°C | 26.7°C | 304 mm | 86% | 1.8 m/s | — |
| 1981 | 34.3°C | 21.7°C | 28.0°C | 290 mm | 82% | 2.4 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 36.9°C with lows near 22.3°C (mean 29.6°C), based on 45 years of NASA POWER data.
May averages 154 mm of rainfall in Tenkasi, a relatively wet time of year. The wettest on record was 510 mm in 2004.
The hottest May reached 41.3°C in 1991. The coldest dipped to 20.6°C in 2011.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1°C. Daytime highs moved from 35.7°C to 36.7°C and overnight lows from 21.9°C to 22.7°C over the same span.
May is one of the warmer months of the year in Tenkasi and a relatively wet time of year, so plan for around 36.9°C daytime highs and 22.3°C at night.
Not quite — May is the 11th coolest month in Tenkasi, averaging 29.6°C.
For May in Tenkasi, pack light, breathable clothing and sun protection, with typical highs of 36.9°C and lows of 22.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 78% — quite humid.
Average wind speed in May is 2.6 m/s. The windiest May on record averaged 3.2 m/s (1988).
The wettest May on record was 2004 with 510 mm. On average, May sees 154 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 Tenkasi 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.
