May is one of the warmer months of the year in Sivaganga, with average highs near 39.5°C and lows around 24.8°C (mean 32.2°C). It is about average for rainfall, averaging 76 mm of rainfall and 65% relative humidity across the period.
May is one of the warmer months of the year in Sivaganga. Across 45 years of records, the warmest May in Sivaganga was 2019 — when the month averaged 34°C — while the coldest was 2004 at 29.8°C. Typical May days reach 39.5°C with nights near 24.8°C. The long-term May temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 32.3°C | 32.1°C | 32.0°C | 32.2°C | 31.9°C | -0.4°C |
| Avg High | 39.8°C | 39.7°C | 39.5°C | 39.3°C | 39.0°C | -0.8°C |
| Avg Low | 24.8°C | 24.5°C | 24.5°C | 25.2°C | 24.9°C | +0.1°C |
| Avg Rain | 54 mm | 67 mm | 92 mm | 80 mm | 92 mm | +38 mm |
May temperatures in Sivaganga have fallen by about 0.3°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 23.6°C (1994) to a record high of 41.5°C (1983).
Rainfall in May is about average for rainfall, averaging 76 mm, with a wettest year of 247 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A quieter season to visit Sivaganga
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Sivaganga. That said, May — with days averaging 39.5°C and nights around 24.8°C (mean 32.2°C) and moderate rainfall (76 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 | 37.4°C | 25.4°C | 31.4°C | 99 mm | 68% | 2.9 m/s | 5.6 |
| 2024 | 41.4°C | 25.2°C | 33.3°C | 154 mm | 70% | 2.5 m/s | 5.2 |
| 2023 | 37.2°C | 24.4°C | 30.8°C | 136 mm | 76% | 2.4 m/s | 5.8 |
| 2022 | 38.7°C | 23.9°C | 31.3°C | 54 mm | 66% | 2.9 m/s | 5.8 |
| 2021 | 39.1°C | 24.0°C | 31.5°C | 54 mm | 69% | 3 m/s | 5.8 |
| 2020 | 40.3°C | 26.4°C | 33.3°C | 54 mm | 62% | 2.7 m/s | 5.7 |
| 2019 🔥 | 41.3°C | 26.8°C | 34.0°C | 11 mm | 56% | 3.1 m/s | 6.1 |
| 2018 | 37.6°C | 25.0°C | 31.3°C | 97 mm | 70% | 2.6 m/s | 5.5 |
| 2017 | 40.2°C | 25.9°C | 33.1°C | 43 mm | 63% | 2.8 m/s | 5.7 |
| 2016 | 41.1°C | 24.0°C | 32.5°C | 115 mm | 65% | 2.9 m/s | 5.8 |
| 2015 | 36.3°C | 23.8°C | 30.0°C | 178 mm | 77% | 2.5 m/s | 5.6 |
| 2014 | 37.3°C | 25.1°C | 31.2°C | 152 mm | 73% | 2.8 m/s | 5.7 |
| 2013 | 40.8°C | 25.8°C | 33.3°C | 33 mm | 57% | 3 m/s | 5.9 |
| 2012 | 39.3°C | 24.8°C | 32.0°C | 54 mm | 67% | 2.6 m/s | 6.1 |
| 2011 | 39.3°C | 24.7°C | 32.0°C | 53 mm | 62% | 2.8 m/s | 6.6 |
| 2010 | 39.5°C | 25.9°C | 32.7°C | 67 mm | 65% | 2.9 m/s | 6.1 |
| 2009 | 41.1°C | 25.0°C | 33.1°C | 25 mm | 59% | 2.7 m/s | 6.1 |
| 2008 | 39.4°C | 24.6°C | 32.0°C | 50 mm | 65% | 3 m/s | 6.5 |
| 2007 | 40.8°C | 25.0°C | 32.9°C | 39 mm | 61% | 2.9 m/s | 6.4 |
| 2006 | 40.9°C | 24.7°C | 32.8°C | 97 mm | 67% | 3.3 m/s | 6.1 |
| 2005 | 38.8°C | 24.5°C | 31.6°C | 61 mm | 71% | 2.6 m/s | 6.2 |
| 2004 ❄️ 🌧️ | 35.8°C | 23.7°C | 29.8°C | 247 mm | 79% | 2.8 m/s | 5.4 |
| 2003 | 39.7°C | 24.7°C | 32.2°C | 135 mm | 69% | 2.7 m/s | 5.8 |
| 2002 | 39.6°C | 24.4°C | 32.0°C | 106 mm | 70% | 3.1 m/s | 6.1 |
| 2001 | 38.0°C | 24.1°C | 31.0°C | 64 mm | 69% | 2.9 m/s | 6.5 |
| 2000 | 40.9°C | 24.1°C | 32.5°C | 99 mm | 58% | 2.6 m/s | 6.3 |
| 1999 | 39.1°C | 23.7°C | 31.4°C | 109 mm | 73% | 3.2 m/s | 6 |
| 1998 | 40.1°C | 25.1°C | 32.6°C | 64 mm | 62% | 2.8 m/s | 5.5 |
| 1997 | 40.0°C | 23.9°C | 31.9°C | 63 mm | 62% | 2.7 m/s | 5.6 |
| 1996 | 39.4°C | 24.7°C | 32.0°C | 13 mm | 64% | 2.9 m/s | 6.1 |
| 1995 | 38.8°C | 23.7°C | 31.2°C | 87 mm | 67% | 2.8 m/s | 5.6 |
| 1994 | 38.2°C | 23.6°C | 30.9°C | 131 mm | 69% | 2.9 m/s | 6.1 |
| 1993 | 40.6°C | 25.1°C | 32.8°C | 40 mm | 61% | 3 m/s | 6 |
| 1992 | 40.6°C | 24.2°C | 32.4°C | 52 mm | 61% | 3 m/s | 5.9 |
| 1991 | 41.1°C | 26.3°C | 33.7°C | 14 mm | 59% | 3.3 m/s | 5.9 |
| 1990 | 39.2°C | 24.6°C | 31.9°C | 94 mm | 64% | 3.5 m/s | 5.4 |
| 1989 | 41.4°C | 24.5°C | 33.0°C | 30 mm | 57% | 3.1 m/s | 5.8 |
| 1988 | 38.8°C | 25.4°C | 32.1°C | 48 mm | 63% | 2.8 m/s | 5.7 |
| 1987 | 39.1°C | 25.0°C | 32.0°C | 30 mm | 60% | 2.8 m/s | 5.9 |
| 1986 | 41.4°C | 25.0°C | 33.2°C | 31 mm | 57% | 3.3 m/s | 6.2 |
| 1985 | 39.9°C | 25.3°C | 32.6°C | 36 mm | 59% | 3.2 m/s | 5.9 |
| 1984 | 38.6°C | 24.4°C | 31.5°C | 18 mm | 66% | 2.8 m/s | 6.2 |
| 1983 | 41.5°C | 25.2°C | 33.3°C | 67 mm | 60% | 3 m/s | — |
| 1982 | 38.7°C | 23.9°C | 31.3°C | 112 mm | 68% | 2.8 m/s | — |
| 1981 | 38.6°C | 24.4°C | 31.5°C | 118 mm | 70% | 2.7 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 24.8°C (mean 32.2°C), based on 45 years of NASA POWER data.
May averages 76 mm of rainfall in Sivaganga, about average for rainfall. The wettest on record was 247 mm in 2004.
The hottest May reached 41.5°C in 1983. The coldest dipped to 23.6°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have fallen by about 0.3°C. Daytime highs moved from 39.5°C to 38.8°C and overnight lows from 24.6°C to 24.6°C over the same span.
May is one of the warmer months of the year in Sivaganga and about average for rainfall, so plan for around 39.5°C daytime highs and 24.8°C at night.
Not quite — May is the 11th coolest month in Sivaganga, averaging 32.2°C.
For May in Sivaganga, pack light, breathable clothing and sun protection, with typical highs of 39.5°C and lows of 24.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 65% — moderately humid.
Average wind speed in May is 2.9 m/s. The windiest May on record averaged 3.5 m/s (1990).
The wettest May on record was 2004 with 247 mm. On average, May sees 76 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 Sivaganga 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.
