March is one of the warmer months of the year in Ariyalur, with average highs near 39.3°C and lows around 20.7°C (mean 30°C). It is one of the drier months, averaging 15 mm of rainfall and 64% relative humidity across the period.
March is one of the warmer months of the year in Ariyalur. Across 45 years of records, the warmest Marchs in Ariyalur were 1988 and 2001 — when the month averaged 32.1°C — while the coldest was 2008 at 26.3°C. Typical March days reach 39.3°C with nights near 20.7°C. The long-term March temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 30.0°C | 30.1°C | 29.8°C | 30.1°C | 29.9°C | -0.1°C |
| Avg High | 39.3°C | 39.9°C | 39.1°C | 39.1°C | 38.6°C | -0.7°C |
| Avg Low | 20.7°C | 20.4°C | 20.6°C | 21.1°C | 21.1°C | +0.4°C |
| Avg Rain | 18 mm | 4 mm | 27 mm | 11 mm | 19 mm | +1 mm |
March temperatures in Ariyalur have stayed relatively stable across the record.
March has ranged from a record low of 18.4°C (1992) to a record high of 41.7°C (2001).
Rainfall in March is one of the drier months, averaging 15 mm, with a wettest year of 157 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
One of the best times to visit Ariyalur
March is one of the best times to visit Ariyalur. Expect days averaging 39.3°C and nights around 20.7°C (mean 30°C) — close to Ariyalur's yearly average — with low rainfall (15 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 37.8°C | 21.4°C | 29.6°C | 55 mm | 70% | 2.1 m/s | 6.3 |
| 2024 | 39.2°C | 21.6°C | 30.4°C | 1 mm | 62% | 2.4 m/s | 6.5 |
| 2023 | 38.7°C | 20.2°C | 29.4°C | 27 mm | 67% | 2.6 m/s | 6.2 |
| 2022 | 38.3°C | 20.4°C | 29.3°C | 25 mm | 68% | 2.5 m/s | 5.8 |
| 2021 | 39.4°C | 20.5°C | 30.0°C | 4 mm | 74% | 2.1 m/s | 6.7 |
| 2020 | 38.3°C | 22.7°C | 30.5°C | 2 mm | 63% | 2.5 m/s | 6.4 |
| 2019 | 40.7°C | 22.3°C | 31.5°C | 1 mm | 61% | 2.6 m/s | 6.8 |
| 2018 | 38.5°C | 19.3°C | 28.9°C | 13 mm | 67% | 2.4 m/s | 6.3 |
| 2017 | 37.7°C | 21.2°C | 29.5°C | 47 mm | 68% | 2.3 m/s | 6.1 |
| 2016 | 39.9°C | 22.7°C | 31.3°C | 2 mm | 64% | 2.3 m/s | 6.4 |
| 2015 | 38.5°C | 22.3°C | 30.4°C | 4 mm | 63% | 2.6 m/s | 6.2 |
| 2014 | 40.1°C | 20.6°C | 30.3°C | 1 mm | 61% | 2.8 m/s | 6.4 |
| 2013 | 39.0°C | 21.0°C | 30.0°C | 27 mm | 64% | 2.6 m/s | 6.1 |
| 2012 | 39.0°C | 22.8°C | 30.9°C | 7 mm | 62% | 2.4 m/s | 6.2 |
| 2011 | 38.7°C | 19.0°C | 28.9°C | 2 mm | 67% | 2.4 m/s | 6.7 |
| 2010 | 39.0°C | 19.3°C | 29.1°C | 1 mm | 64% | 2.3 m/s | 6.6 |
| 2009 | 38.4°C | 20.4°C | 29.4°C | 51 mm | 68% | 2 m/s | 6.2 |
| 2008 ❄️ 🌧️ | 33.9°C | 18.6°C | 26.3°C | 157 mm | 80% | 2.2 m/s | 5.3 |
| 2007 | 39.7°C | 21.4°C | 30.5°C | 1 mm | 62% | 2.4 m/s | 6.6 |
| 2006 | 39.1°C | 20.8°C | 29.9°C | 35 mm | 69% | 2 m/s | 6.1 |
| 2005 | 39.8°C | 22.1°C | 30.9°C | 12 mm | 64% | 2.4 m/s | 6.2 |
| 2004 | 40.5°C | 19.6°C | 30.1°C | 2 mm | 61% | 2.5 m/s | 6.5 |
| 2003 | 39.5°C | 20.9°C | 30.2°C | 10 mm | 63% | 2.4 m/s | 6.5 |
| 2002 | 39.3°C | 20.4°C | 29.9°C | 2 mm | 65% | 2.4 m/s | 6.6 |
| 2001 | 41.7°C | 22.5°C | 32.1°C | 0 mm | 59% | 2.4 m/s | 6.4 |
| 2000 | 38.8°C | 19.3°C | 29.1°C | 2 mm | 66% | 2.4 m/s | 6.7 |
| 1999 | 40.1°C | 18.8°C | 29.5°C | 1 mm | 61% | 2.4 m/s | 6.7 |
| 1998 | 39.4°C | 21.9°C | 30.6°C | 1 mm | 62% | 2.5 m/s | 6.2 |
| 1997 | 39.0°C | 19.7°C | 29.3°C | 5 mm | 64% | 2.5 m/s | 6.2 |
| 1996 | 40.5°C | 20.0°C | 30.2°C | 1 mm | 59% | 2.5 m/s | 6.3 |
| 1995 | 39.3°C | 21.0°C | 30.1°C | 6 mm | 62% | 2.5 m/s | 6.3 |
| 1994 | 40.1°C | 18.6°C | 29.3°C | 3 mm | 66% | 2.3 m/s | 6.4 |
| 1993 | 39.6°C | 21.6°C | 30.6°C | 6 mm | 61% | 2.7 m/s | 6.2 |
| 1992 | 40.0°C | 18.4°C | 29.2°C | 0 mm | 58% | 2.1 m/s | 6.6 |
| 1991 | 40.9°C | 20.7°C | 30.8°C | 2 mm | 60% | 2.5 m/s | 6.4 |
| 1990 | 39.9°C | 23.1°C | 31.5°C | 16 mm | 62% | 2.7 m/s | 6 |
| 1989 | 39.4°C | 19.2°C | 29.3°C | 19 mm | 60% | 2.6 m/s | 6.3 |
| 1988 🔥 | 41.2°C | 23.0°C | 32.1°C | 3 mm | 60% | 2.5 m/s | 6 |
| 1987 | 39.2°C | 20.2°C | 29.7°C | 34 mm | 61% | 2.5 m/s | 6.6 |
| 1986 | 39.0°C | 21.1°C | 30.0°C | 43 mm | 66% | 2.5 m/s | 6.3 |
| 1985 | 39.9°C | 19.3°C | 29.6°C | 4 mm | 63% | 2.4 m/s | 6.6 |
| 1984 | 36.0°C | 19.6°C | 27.8°C | 35 mm | 75% | 1.9 m/s | 5.8 |
| 1983 | 41.2°C | 21.8°C | 31.5°C | 0 mm | 58% | 2.5 m/s | — |
| 1982 | 39.4°C | 21.1°C | 30.2°C | 4 mm | 63% | 2.3 m/s | — |
| 1981 | 38.7°C | 20.6°C | 29.7°C | 20 mm | 64% | 2.6 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 39.3°C with lows near 20.7°C (mean 30°C), based on 45 years of NASA POWER data.
March averages 15 mm of rainfall in Ariyalur, one of the drier months. The wettest on record was 157 mm in 2008.
The hottest March reached 41.7°C in 2001. The coldest dipped to 18.4°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have fallen by about 0.1°C. Daytime highs moved from 39°C to 38.7°C and overnight lows from 20.5°C to 20.8°C over the same span.
March is one of the warmer months of the year in Ariyalur and one of the drier months, so plan for around 39.3°C daytime highs and 20.7°C at night.
Not quite — March is the 6th coolest month in Ariyalur, averaging 30°C.
For March in Ariyalur, pack light, breathable clothing and sun protection, with typical highs of 39.3°C and lows of 20.7°C.
Relative humidity in March averages 64% — moderately humid.
Average wind speed in March is 2.4 m/s. The windiest March on record averaged 2.8 m/s (2014).
The wettest March on record was 2008 with 157 mm. On average, March sees 15 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 Ariyalur 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.
