Ariyalur, Tamil Nadu Weather
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Climate of Ariyalur: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), April is usually the hottest month in Ariyalur, with average daytime highs around 37°C. January is the coolest, when nights typically fall to about 20°C.
The area receives about 1010 mm of rain in a typical year. Most of it falls from September to December (around 66% of the yearly total), and November is the wettest month at roughly 250 mm. The driest stretch is January to March, with under 20 mm a month.
For outdoor plans and travel, January to February usually offer the most comfortable weather in Ariyalur, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 29° | 20° | 16 mm | 79% |
| Feb | 32° | 20° | 10 mm | 71% |
| Mar | 35° | 23° | 19 mm | 65% |
| Apr | 37° | 26° | 33 mm | 63% |
| May | 36° | 27° | 74 mm | 64% |
| Jun | 35° | 26° | 42 mm | 61% |
| Jul | 35° | 26° | 60 mm | 61% |
| Aug | 34° | 25° | 91 mm | 65% |
| Sep | 33° | 25° | 106 mm | 71% |
| Oct | 31° | 24° | 195 mm | 78% |
| Nov | 29° | 23° | 250 mm | 86% |
| Dec | 28° | 21° | 116 mm | 85% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Ariyalur. Values describe typical conditions, not a forecast.
About Ariyalur weather
Ariyalur is a place in Tamil Nadu's interior plateau (around Coimbatore, Salem and the Western Ghats rain-shadow), noticeably drier than the coast, located about 56 km north-east of Tiruchirappalli. Ariyalur gets a hot summer (April–June) with highs often in the high 30s°C each year. This is followed by the north-east monsoon (October–December) — Tamil Nadu's principal rainy season — with a weaker south-west monsoon contribution (June–September) mainly over the western interior. Ariyalur closes out the year with a mild, short winter (December–January) with little temperature drop near the coast. This page shows live, auto-refreshing weather for Ariyalur: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: Asia/Kolkata.
Frequently asked questions
Ariyalur is about 56 km north-east of Tiruchirappalli, in Tamil Nadu.
Ariyalur gets the north-east monsoon (October–December) — Tamil Nadu's principal rainy season — with a weaker south-west monsoon contribution (June–September) mainly over the western interior.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Ariyalur's exact coordinates. No fixed schedule, the page updates whenever you load it.
April is usually the hottest month in Ariyalur, with average daytime highs of about 37°C and nights around 26°C.
The coldest nights come in January, when the average low is about 20°C and daytime highs reach around 29°C. Winters are mild, so heavy woollens are rarely needed.
Ariyalur receives about 1010 mm of rain in a typical year. November is the wettest month at roughly 250 mm, and the main rainy period is September to December.
January to February usually offer the most comfortable weather in Ariyalur, with mild daytime temperatures and little rain.
In November Ariyalur typically sees daytime highs near 29°C and lows near 23°C, with about 250 mm of rain over the month and average humidity around 86%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
The current temperature for Ariyalur updates automatically at the top of this page — scroll to the hourly strip below to see how it's expected to change over the day.
Ariyalur's day-to-day weather is shaped by its position in Tamil Nadu, India — well inland, so daily temperature swings are sharper than on the coast. See the hourly weather forecast or the air quality index for more detail.