April is one of the warmer months of the year in Ariyalur, with average highs near 40.7°C and lows around 24°C (mean 32.4°C). It is one of the drier months, averaging 30 mm of rainfall and 62% relative humidity across the period.
April is one of the warmer months of the year in Ariyalur. Across 45 years of records, the warmest April in Ariyalur was 2004 — when the month averaged 34°C — while the coldest was 1994 at 31.2°C. Typical April days reach 40.7°C with nights near 24°C. The long-term April temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 32.5°C | 32.3°C | 32.4°C | 32.5°C | 32.0°C | -0.5°C |
| Avg High | 41.3°C | 40.9°C | 40.5°C | 40.6°C | 39.9°C | -1.4°C |
| Avg Low | 23.6°C | 23.6°C | 24.3°C | 24.5°C | 24.2°C | +0.6°C |
| Avg Rain | 18 mm | 35 mm | 40 mm | 28 mm | 28 mm | +10 mm |
April temperatures in Ariyalur have fallen by about 0.5°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 22.4°C (1992) to a record high of 43.1°C (1985).
Rainfall in April is one of the drier months, averaging 30 mm, with a wettest year of 152 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.3°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A quieter season to visit Ariyalur
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Ariyalur. That said, April — with days averaging 40.7°C and nights around 24°C (mean 32.4°C) and moderate rainfall (30 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 | 39.0°C | 23.9°C | 31.4°C | 41 mm | 65% | 2.1 m/s | 6.2 |
| 2024 | 41.3°C | 25.2°C | 33.3°C | 3 mm | 60% | 2.6 m/s | 6.9 |
| 2023 | 40.7°C | 24.3°C | 32.5°C | 32 mm | 62% | 2.4 m/s | 6.5 |
| 2022 | 38.2°C | 24.5°C | 31.4°C | 54 mm | 69% | 2.2 m/s | 6.4 |
| 2021 | 40.1°C | 23.6°C | 31.8°C | 23 mm | 66% | 2.2 m/s | 6.3 |
| 2020 | 39.8°C | 23.8°C | 31.8°C | 18 mm | 63% | 2.5 m/s | 6.4 |
| 2019 | 40.4°C | 24.7°C | 32.6°C | 11 mm | 58% | 2.5 m/s | 6.7 |
| 2018 | 39.4°C | 24.6°C | 32.0°C | 21 mm | 65% | 2.6 m/s | 6.3 |
| 2017 | 41.9°C | 23.9°C | 32.9°C | 3 mm | 58% | 2.6 m/s | 6.7 |
| 2016 | 42.5°C | 24.8°C | 33.6°C | 3 mm | 60% | 2.7 m/s | 6.9 |
| 2015 | 40.3°C | 24.4°C | 32.4°C | 85 mm | 67% | 2.3 m/s | 6.4 |
| 2014 | 40.4°C | 23.6°C | 32.0°C | 4 mm | 60% | 2.4 m/s | 6.6 |
| 2013 | 40.9°C | 25.1°C | 33.0°C | 9 mm | 59% | 2.8 m/s | 6.5 |
| 2012 | 40.3°C | 24.2°C | 32.2°C | 30 mm | 62% | 2.4 m/s | 6.6 |
| 2011 | 39.2°C | 23.8°C | 31.5°C | 67 mm | 65% | 2.3 m/s | 6.2 |
| 2010 | 40.4°C | 25.9°C | 33.1°C | 43 mm | 63% | 2.7 m/s | 6.4 |
| 2009 | 39.5°C | 23.5°C | 31.5°C | 48 mm | 67% | 2.3 m/s | 6.4 |
| 2008 | 39.2°C | 23.4°C | 31.3°C | 16 mm | 72% | 2.2 m/s | 6.6 |
| 2007 | 39.4°C | 24.7°C | 32.0°C | 32 mm | 65% | 2.3 m/s | 6.5 |
| 2006 | 41.7°C | 23.6°C | 32.7°C | 24 mm | 60% | 2.4 m/s | 6.4 |
| 2005 🌧️ | 38.8°C | 24.0°C | 31.4°C | 152 mm | 76% | 2.1 m/s | 5.6 |
| 2004 🔥 | 42.4°C | 25.6°C | 34.0°C | 8 mm | 59% | 2.6 m/s | 6.6 |
| 2003 | 40.9°C | 24.8°C | 32.9°C | 17 mm | 58% | 2.6 m/s | 6.4 |
| 2002 | 41.0°C | 24.6°C | 32.8°C | 6 mm | 59% | 2.5 m/s | 6.8 |
| 2001 | 38.7°C | 24.2°C | 31.5°C | 70 mm | 66% | 2.3 m/s | 6.1 |
| 2000 | 43.0°C | 24.3°C | 33.6°C | 24 mm | 60% | 2.5 m/s | 6.7 |
| 1999 | 42.7°C | 22.7°C | 32.7°C | 48 mm | 59% | 2.7 m/s | 6.3 |
| 1998 | 42.2°C | 24.3°C | 33.2°C | 6 mm | 58% | 2.8 m/s | 6.2 |
| 1997 | 39.0°C | 23.6°C | 31.3°C | 44 mm | 61% | 2.3 m/s | 6 |
| 1996 | 39.3°C | 24.0°C | 31.7°C | 122 mm | 68% | 2.2 m/s | 5.8 |
| 1995 | 40.1°C | 24.0°C | 32.1°C | 8 mm | 60% | 2.6 m/s | 6.3 |
| 1994 ❄️ | 39.5°C | 22.9°C | 31.2°C | 84 mm | 65% | 2.3 m/s | 6.3 |
| 1993 | 39.8°C | 23.1°C | 31.4°C | 11 mm | 59% | 2.6 m/s | 6.5 |
| 1992 | 42.4°C | 22.4°C | 32.4°C | 7 mm | 57% | 2.7 m/s | 6.2 |
| 1991 | 41.8°C | 24.7°C | 33.2°C | 7 mm | 57% | 2.6 m/s | 6.4 |
| 1990 | 42.5°C | 24.7°C | 33.6°C | 8 mm | 57% | 2.8 m/s | 6.2 |
| 1989 | 42.0°C | 23.2°C | 32.6°C | 6 mm | 56% | 2.7 m/s | 6.5 |
| 1988 | 39.8°C | 24.6°C | 32.2°C | 45 mm | 63% | 2.4 m/s | 5.9 |
| 1987 | 42.0°C | 22.8°C | 32.4°C | 16 mm | 59% | 3 m/s | 6.3 |
| 1986 | 40.1°C | 24.1°C | 32.1°C | 5 mm | 59% | 2.8 m/s | 6.8 |
| 1985 | 43.1°C | 24.7°C | 33.9°C | 24 mm | 59% | 2.9 m/s | 6.7 |
| 1984 | 40.2°C | 23.4°C | 31.8°C | 44 mm | 68% | 2.3 m/s | 5.9 |
| 1983 | 41.5°C | 22.9°C | 32.2°C | 2 mm | 57% | 3 m/s | — |
| 1982 | 41.1°C | 23.3°C | 32.2°C | 13 mm | 59% | 2.6 m/s | — |
| 1981 | 42.3°C | 23.1°C | 32.7°C | 9 mm | 58% | 2.8 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 40.7°C with lows near 24°C (mean 32.4°C), based on 45 years of NASA POWER data.
April averages 30 mm of rainfall in Ariyalur, one of the drier months. The wettest on record was 152 mm in 2005.
The hottest April reached 43.1°C in 1985. The coldest dipped to 22.4°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have fallen by about 0.5°C. Daytime highs moved from 41.6°C to 39.9°C and overnight lows from 23.5°C to 24.3°C over the same span.
April is one of the warmer months of the year in Ariyalur and one of the drier months, so plan for around 40.7°C daytime highs and 24°C at night.
Not quite — April is the 11th coolest month in Ariyalur, averaging 32.4°C.
For April in Ariyalur, pack light, breathable clothing and sun protection, with typical highs of 40.7°C and lows of 24°C.
Relative humidity in April averages 62% — moderately humid.
Average wind speed in April is 2.5 m/s. The windiest April on record averaged 3 m/s (1983).
The wettest April on record was 2005 with 152 mm. On average, April sees 30 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 April, 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 April specifically, along with year-by-year records and how the month has changed over the decades.
