March is one of the warmer months of the year in Theni, with average highs near 33.8°C and lows around 19.5°C (mean 26.7°C). It is one of the drier months, averaging 26 mm of rainfall and 56% relative humidity across the period.
March is one of the warmer months of the year in Theni. Across 45 years of records, the warmest March in Theni was 1983 — when the month averaged 28.5°C — while the coldest was 2008 at 23.6°C. Typical March days reach 33.8°C with nights near 19.5°C. The long-term March temperature trend is broadly flat.
March is one of the drier months in Theni, averaging 26 mm of rainfall. The wettest March on record was 2008 with 175 mm, while the driest were 1983 and 1992 at 0 mm.
Relative humidity in Theni during March averages 56%. The most humid March was 2008 at 74%, and the least humid was 1992 at 35%.
March receives about 6.4 kWh/m²/day of solar energy in Theni. The sunniest March was 1992 at 7 kWh/m²/day, and the cloudiest was 2008 at 5.
Average wind speed in Theni during March is 1.2 m/s. The windiest March was 2014 at 1.6 m/s, while the calmest were 1988 and 2005 at 1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.5°C | 27.0°C | 26.3°C | 27.0°C | 26.3°C | -0.2°C |
| Avg High | 33.7°C | 34.7°C | 33.1°C | 34.1°C | 33.0°C | -0.7°C |
| Avg Low | 19.3°C | 19.3°C | 19.5°C | 20.0°C | 19.5°C | +0.2°C |
| Avg Rain | 29 mm | 12 mm | 42 mm | 21 mm | 28 mm | -2 mm |
March temperatures in Theni have fallen by about 0.4°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 13.6°C (1994) to a record high of 39.3°C (1983).
Rainfall in March is one of the drier months, averaging 26 mm, with a wettest year of 175 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 good time to visit Theni
March is a good time to visit Theni, with days averaging 33.8°C and nights around 19.5°C (mean 26.7°C, warmer than Theni's yearly average) and low rainfall. January and December are marginally more temperate, but March still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 32.8°C | 26.4°C | 19.9°C | 35.2°C | 16.0°C | 47 mm | 64% | 1.3 m/s | 5.9 |
| 2024 | 35.1°C | 27.4°C | 19.7°C | 37.9°C | 17.3°C | 3 mm | 52% | 1.3 m/s | 6.7 |
| 2023 | 32.4°C | 25.7°C | 19.1°C | 35.2°C | 14.5°C | 48 mm | 66% | 1.2 m/s | 6.1 |
| 2022 | 32.5°C | 25.8°C | 19.1°C | 35.6°C | 16.1°C | 40 mm | 62% | 1.2 m/s | 6.2 |
| 2021 | 31.1°C | 24.9°C | 18.6°C | 36.1°C | 15.1°C | 22 mm | 67% | 1.2 m/s | 6.5 |
| 2020 | 34.2°C | 27.3°C | 20.4°C | 37.0°C | 18.8°C | 6 mm | 57% | 1.2 m/s | 6.3 |
| 2019 | 35.9°C | 28.3°C | 20.8°C | 38.4°C | 18.6°C | 10 mm | 47% | 1.4 m/s | 6.7 |
| 2018 | 33.1°C | 26.4°C | 19.7°C | 35.9°C | 16.9°C | 25 mm | 58% | 1.2 m/s | 6 |
| 2017 | 31.9°C | 25.8°C | 19.8°C | 35.4°C | 17.4°C | 71 mm | 67% | 1.1 m/s | 5.9 |
| 2016 | 35.2°C | 28.0°C | 20.9°C | 38.0°C | 17.6°C | 12 mm | 55% | 1.2 m/s | 6.6 |
| 2015 | 33.5°C | 26.7°C | 19.9°C | 36.0°C | 17.6°C | 19 mm | 58% | 1.3 m/s | 6.2 |
| 2014 | 33.8°C | 26.6°C | 19.3°C | 37.0°C | 15.6°C | 5 mm | 51% | 1.6 m/s | 6.3 |
| 2013 | 33.9°C | 27.0°C | 20.0°C | 37.4°C | 16.2°C | 29 mm | 58% | 1.3 m/s | 6.1 |
| 2012 | 34.8°C | 27.6°C | 20.5°C | 37.0°C | 18.3°C | 22 mm | 52% | 1.2 m/s | 6.1 |
| 2011 | 33.0°C | 25.9°C | 18.8°C | 35.5°C | 14.7°C | 6 mm | 60% | 1.2 m/s | 6.7 |
| 2010 | 35.6°C | 27.8°C | 20.1°C | 37.7°C | 17.1°C | 13 mm | 49% | 1.3 m/s | 6.7 |
| 2009 | 33.5°C | 26.4°C | 19.2°C | 36.2°C | 15.8°C | 28 mm | 53% | 1.3 m/s | 6.3 |
| 2008 ❄️ 🌧️ | 28.6°C | 23.6°C | 18.6°C | 32.2°C | 14.6°C | 175 mm | 74% | 1.2 m/s | 5 |
| 2007 | 34.7°C | 27.0°C | 19.3°C | 37.1°C | 17.4°C | 1 mm | 51% | 1.3 m/s | 6.7 |
| 2006 | 31.5°C | 25.6°C | 19.8°C | 34.8°C | 18.0°C | 70 mm | 70% | 1.1 m/s | 6.1 |
| 2005 | 33.1°C | 26.6°C | 20.0°C | 35.9°C | 17.1°C | 30 mm | 62% | 1 m/s | 6.3 |
| 2004 | 35.4°C | 27.6°C | 19.8°C | 38.1°C | 16.0°C | 14 mm | 47% | 1.4 m/s | 6.5 |
| 2003 | 33.0°C | 26.2°C | 19.3°C | 35.8°C | 15.5°C | 74 mm | 61% | 1.3 m/s | 6.4 |
| 2002 | 33.8°C | 26.4°C | 19.0°C | 37.1°C | 16.4°C | 13 mm | 56% | 1.2 m/s | 6.6 |
| 2001 | 35.1°C | 27.8°C | 20.4°C | 38.9°C | 16.7°C | 1 mm | 48% | 1.1 m/s | 6.4 |
| 2000 | 32.6°C | 25.9°C | 19.2°C | 34.9°C | 15.9°C | 16 mm | 59% | 1.1 m/s | 6.7 |
| 1999 | 34.4°C | 26.6°C | 18.8°C | 37.5°C | 15.7°C | 18 mm | 55% | 1.3 m/s | 6.9 |
| 1998 | 35.7°C | 27.7°C | 19.7°C | 38.8°C | 17.1°C | 2 mm | 50% | 1.2 m/s | 6.4 |
| 1997 | 34.8°C | 26.9°C | 19.1°C | 37.5°C | 16.5°C | 19 mm | 50% | 1.3 m/s | 6.4 |
| 1996 | 35.3°C | 27.2°C | 19.1°C | 38.9°C | 15.3°C | 2 mm | 43% | 1.3 m/s | 6.4 |
| 1995 | 33.2°C | 26.1°C | 18.9°C | 37.2°C | 16.4°C | 35 mm | 54% | 1.3 m/s | 6.5 |
| 1994 | 33.1°C | 25.7°C | 18.3°C | 36.9°C | 13.6°C | 5 mm | 59% | 1.3 m/s | 6.5 |
| 1993 | 33.8°C | 26.5°C | 19.2°C | 36.0°C | 16.1°C | 17 mm | 55% | 1.2 m/s | 6.5 |
| 1992 | 36.0°C | 27.1°C | 18.3°C | 37.8°C | 15.6°C | 0 mm | 35% | 1.5 m/s | 7 |
| 1991 | 35.9°C | 28.2°C | 20.6°C | 38.4°C | 18.2°C | 3 mm | 47% | 1.4 m/s | 6.5 |
| 1990 | 34.9°C | 27.8°C | 20.7°C | 37.4°C | 17.9°C | 17 mm | 53% | 1.1 m/s | 6.1 |
| 1989 | 34.1°C | 26.4°C | 18.7°C | 36.9°C | 16.2°C | 26 mm | 48% | 1.4 m/s | 6.7 |
| 1988 | 34.2°C | 27.4°C | 20.6°C | 37.7°C | 16.7°C | 23 mm | 58% | 1 m/s | 6 |
| 1987 | 34.1°C | 26.7°C | 19.3°C | 36.7°C | 15.6°C | 19 mm | 49% | 1.2 m/s | 6.7 |
| 1986 | 32.9°C | 26.0°C | 19.1°C | 37.3°C | 16.0°C | 34 mm | 62% | 1.3 m/s | 6.5 |
| 1985 | 34.1°C | 26.8°C | 19.5°C | 36.5°C | 15.7°C | 15 mm | 55% | 1.2 m/s | 6.4 |
| 1984 | 29.6°C | 23.9°C | 18.2°C | 33.5°C | 16.1°C | 73 mm | 70% | 1.2 m/s | 5.8 |
| 1983 🔥 | 36.8°C | 28.5°C | 20.2°C | 39.3°C | 17.7°C | 0 mm | 40% | 1.3 m/s | — |
| 1982 | 34.4°C | 26.6°C | 18.9°C | 37.3°C | 17.1°C | 30 mm | 52% | 1.3 m/s | — |
| 1981 | 33.3°C | 26.2°C | 19.1°C | 36.4°C | 15.9°C | 42 mm | 60% | 1.2 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 33.8°C with lows near 19.5°C (mean 26.7°C), based on 45 years of NASA POWER data.
March averages 26 mm of rainfall in Theni, one of the drier months. The wettest on record was 175 mm in 2008.
The hottest March reached 39.3°C in 1983. The coldest dipped to 13.6°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have fallen by about 0.4°C — but days and nights have moved in opposite directions. Overnight lows rose from 19.2°C to 19.3°C while daytime highs eased from 33.6°C to 32.8°C, narrowing the gap between day and night.
March is one of the warmer months of the year in Theni and one of the drier months, so plan for around 33.8°C daytime highs and 19.5°C at night.
Not quite — March is the 10th coolest month in Theni, averaging 26.7°C.
For March in Theni, pack light, breathable clothing and sun protection, with typical highs of 33.8°C and lows of 19.5°C.
Relative humidity in March averages 56% — moderately humid.
Average wind speed in March is 1.2 m/s. The windiest March on record averaged 1.6 m/s (2014).
The wettest March on record was 2008 with 175 mm. On average, March sees 26 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 Theni behaves each March, 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 March specifically, along with year-by-year records and how the month has changed over the decades.
