August is one of the warmer months of the year in Ariyalur, with average highs near 38°C and lows around 23.9°C (mean 31°C). It is about average for rainfall, averaging 84 mm of rainfall and 65% relative humidity across the period.
August is one of the warmer months of the year in Ariyalur. Across 45 years of records, the warmest August in Ariyalur was 2005 — when the month averaged 32.7°C — while the coldest was 2008 at 30°C. Typical August days reach 38°C with nights near 23.9°C. The long-term August temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 30.8°C | 31.0°C | 30.9°C | 31.1°C | 30.8°C | 0°C |
| Avg High | 38.1°C | 38.2°C | 37.9°C | 38.3°C | 37.5°C | -0.6°C |
| Avg Low | 23.6°C | 23.8°C | 23.9°C | 23.9°C | 24.2°C | +0.6°C |
| Avg Rain | 69 mm | 72 mm | 73 mm | 104 mm | 110 mm | +41 mm |
August temperatures in Ariyalur have stayed relatively stable across the record.
August has ranged from a record low of 22.4°C (2006) to a record high of 40.2°C (2005).
Rainfall in August is about average for rainfall, averaging 84 mm, with a wettest year of 165 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°C per decade while lows rose 0.1°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, August — with days averaging 38°C and nights around 23.9°C (mean 31°C) and higher rainfall (84 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 | 37.0°C | 24.4°C | 30.7°C | 109 mm | 68% | 2.8 m/s | 4.8 |
| 2024 | 37.0°C | 24.6°C | 30.8°C | 121 mm | 72% | 2.8 m/s | 5.7 |
| 2023 | 39.5°C | 25.3°C | 32.4°C | 96 mm | 65% | 2.7 m/s | 5.9 |
| 2022 | 36.5°C | 23.8°C | 30.1°C | 121 mm | 74% | 2.9 m/s | 5.3 |
| 2021 | 38.4°C | 23.4°C | 30.9°C | 131 mm | 70% | 2.9 m/s | 5.2 |
| 2020 | 36.5°C | 23.8°C | 30.1°C | 85 mm | 72% | 3 m/s | 5.3 |
| 2019 | 38.7°C | 23.8°C | 31.3°C | 140 mm | 65% | 3.8 m/s | 5.1 |
| 2018 | 39.0°C | 24.6°C | 31.8°C | 44 mm | 59% | 4.3 m/s | 5 |
| 2017 | 36.5°C | 23.8°C | 30.1°C | 154 mm | 72% | 2.7 m/s | 5.2 |
| 2016 | 38.3°C | 23.7°C | 31.0°C | 96 mm | 63% | 3.3 m/s | 5.9 |
| 2015 | 38.7°C | 24.3°C | 31.5°C | 87 mm | 63% | 3 m/s | 5.9 |
| 2014 | 37.7°C | 24.6°C | 31.2°C | 90 mm | 64% | 3.4 m/s | 5.6 |
| 2013 | 38.0°C | 24.1°C | 31.0°C | 120 mm | 65% | 3.2 m/s | 5.4 |
| 2012 | 38.3°C | 24.2°C | 31.3°C | 78 mm | 63% | 3.4 m/s | 5.5 |
| 2011 | 38.9°C | 23.5°C | 31.2°C | 83 mm | 63% | 3.5 m/s | 5.5 |
| 2010 | 38.6°C | 22.4°C | 30.5°C | 146 mm | 69% | 3 m/s | 5.2 |
| 2009 | 38.4°C | 24.5°C | 31.4°C | 61 mm | 63% | 3.3 m/s | 5.8 |
| 2008 ❄️ | 36.3°C | 23.7°C | 30.0°C | 119 mm | 70% | 2.9 m/s | 5.4 |
| 2007 | 36.7°C | 24.1°C | 30.4°C | 105 mm | 69% | 3.1 m/s | 5.6 |
| 2006 | 39.1°C | 22.4°C | 30.7°C | 113 mm | 61% | 4 m/s | 5.7 |
| 2005 🔥 | 40.2°C | 25.1°C | 32.7°C | 64 mm | 57% | 3.7 m/s | 5.7 |
| 2004 | 38.8°C | 23.9°C | 31.3°C | 35 mm | 63% | 3.9 m/s | 5.8 |
| 2003 | 36.7°C | 23.5°C | 30.1°C | 115 mm | 72% | 3.3 m/s | 5.3 |
| 2002 | 38.7°C | 24.8°C | 31.7°C | 19 mm | 55% | 4.3 m/s | 5.5 |
| 2001 | 37.3°C | 23.7°C | 30.5°C | 53 mm | 67% | 3.7 m/s | 5.8 |
| 2000 | 36.9°C | 23.8°C | 30.3°C | 47 mm | 68% | 4 m/s | 5.3 |
| 1999 | 39.2°C | 24.2°C | 31.7°C | 43 mm | 62% | 3.4 m/s | 5.4 |
| 1998 🌧️ | 37.5°C | 24.0°C | 30.7°C | 165 mm | 76% | 2.7 m/s | 5.5 |
| 1997 | 38.2°C | 23.7°C | 31.0°C | 35 mm | 60% | 3.9 m/s | 4.8 |
| 1996 | 38.0°C | 23.1°C | 30.5°C | 136 mm | 69% | 3.5 m/s | 4.9 |
| 1995 | 37.0°C | 23.7°C | 30.3°C | 89 mm | 69% | 3.3 m/s | 5.2 |
| 1994 | 38.1°C | 24.2°C | 31.2°C | 26 mm | 61% | 4 m/s | 5 |
| 1993 | 38.3°C | 24.0°C | 31.1°C | 43 mm | 63% | 3.6 m/s | 5.3 |
| 1992 | 38.6°C | 23.6°C | 31.1°C | 26 mm | 61% | 4.3 m/s | 5 |
| 1991 | 37.4°C | 23.6°C | 30.5°C | 85 mm | 65% | 3.9 m/s | 5.1 |
| 1990 | 39.3°C | 23.5°C | 31.4°C | 74 mm | 60% | 4 m/s | 4.7 |
| 1989 | 38.8°C | 23.9°C | 31.3°C | 21 mm | 58% | 4.1 m/s | 5.2 |
| 1988 | 38.0°C | 23.5°C | 30.7°C | 78 mm | 70% | 3.1 m/s | 4.6 |
| 1987 | 36.8°C | 23.9°C | 30.3°C | 63 mm | 64% | 3.5 m/s | 5.3 |
| 1986 | 37.9°C | 23.0°C | 30.4°C | 125 mm | 65% | 3.7 m/s | 5.4 |
| 1985 | 37.9°C | 23.6°C | 30.8°C | 89 mm | 62% | 3.5 m/s | 5.4 |
| 1984 | 38.6°C | 22.8°C | 30.7°C | 65 mm | 62% | 3.8 m/s | 5.9 |
| 1983 | 37.8°C | 23.9°C | 30.8°C | 67 mm | 61% | 3.8 m/s | — |
| 1982 | 39.7°C | 24.2°C | 32.0°C | 22 mm | 58% | 4.1 m/s | — |
| 1981 | 37.0°C | 23.7°C | 30.3°C | 94 mm | 67% | 3.7 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 38°C with lows near 23.9°C (mean 31°C), based on 45 years of NASA POWER data.
August averages 84 mm of rainfall in Ariyalur, about average for rainfall. The wettest on record was 165 mm in 1998.
The hottest August reached 40.2°C in 2005. The coldest dipped to 22.4°C in 2006.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.1°C. Daytime highs moved from 38.2°C to 37.7°C and overnight lows from 23.6°C to 24.3°C over the same span.
August is one of the warmer months of the year in Ariyalur and about average for rainfall, so plan for around 38°C daytime highs and 23.9°C at night.
Not quite — August is the 8th coolest month in Ariyalur, averaging 31°C.
For August in Ariyalur, pack light, breathable clothing and sun protection, with typical highs of 38°C and lows of 23.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 65% — moderately humid.
Average wind speed in August is 3.5 m/s. The windiest August on record averaged 4.3 m/s (1992).
The wettest August on record was 1998 with 165 mm. On average, August sees 84 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 August, 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 August specifically, along with year-by-year records and how the month has changed over the decades.
