July is one of the warmer months of the year in Viluppuram, with average highs near 38.4°C and lows around 23.5°C (mean 31°C). It is about average for rainfall, averaging 82 mm of rainfall and 63% relative humidity across the period.
July is one of the warmer months of the year in Viluppuram. Across 45 years of records, the warmest July in Viluppuram was 1987 — when the month averaged 32.7°C — while the coldest was 2004 at 29.6°C. Typical July days reach 38.4°C with nights near 23.5°C. The long-term July temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 31.1°C | 30.6°C | 31.3°C | 31.1°C | 30.6°C | -0.5°C |
| Avg High | 39.0°C | 38.0°C | 38.8°C | 38.4°C | 37.6°C | -1.4°C |
| Avg Low | 23.3°C | 23.2°C | 23.8°C | 23.8°C | 23.6°C | +0.3°C |
| Avg Rain | 92 mm | 62 mm | 82 mm | 76 mm | 110 mm | +18 mm |
July temperatures in Viluppuram have stayed relatively stable across the record.
July has ranged from a record low of 22.1°C (1989) to a record high of 41°C (1987).
Rainfall in July is about average for rainfall, averaging 82 mm, with a wettest year of 180 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.
A quieter season to visit Viluppuram
If your dates are flexible, the more temperate months of January and December tend to be the most comfortable for visiting Viluppuram. That said, July — with days averaging 38.4°C and nights around 23.5°C (mean 31°C) and higher rainfall (82 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 | 39.4°C | 23.7°C | 31.5°C | 38 mm | 57% | 3.1 m/s | 5.1 |
| 2024 | 38.0°C | 23.9°C | 31.0°C | 65 mm | 64% | 3.6 m/s | 4.9 |
| 2023 | 39.2°C | 23.0°C | 31.1°C | 102 mm | 66% | 3 m/s | 5 |
| 2022 | 36.9°C | 23.9°C | 30.4°C | 123 mm | 70% | 2.7 m/s | 5.2 |
| 2021 🌧️ | 36.4°C | 23.1°C | 29.8°C | 180 mm | 75% | 2.6 m/s | 5.3 |
| 2020 | 35.9°C | 24.1°C | 30.0°C | 153 mm | 76% | 2.1 m/s | 5.1 |
| 2019 | 38.7°C | 24.3°C | 31.5°C | 107 mm | 63% | 2.7 m/s | 5.1 |
| 2018 | 38.5°C | 24.3°C | 31.4°C | 61 mm | 61% | 3.3 m/s | 5.1 |
| 2017 | 40.6°C | 24.5°C | 32.5°C | 92 mm | 55% | 2.7 m/s | 5.3 |
| 2016 | 37.4°C | 22.8°C | 30.1°C | 94 mm | 68% | 2.7 m/s | 5.5 |
| 2015 | 40.0°C | 24.0°C | 32.0°C | 57 mm | 58% | 2.9 m/s | 6 |
| 2014 | 38.7°C | 24.3°C | 31.5°C | 29 mm | 58% | 3.7 m/s | 5.6 |
| 2013 | 37.5°C | 23.5°C | 30.5°C | 59 mm | 63% | 3.5 m/s | 4.8 |
| 2012 | 38.4°C | 24.1°C | 31.2°C | 86 mm | 62% | 2.7 m/s | 5.6 |
| 2011 | 37.6°C | 23.2°C | 30.4°C | 99 mm | 63% | 3.2 m/s | 5.5 |
| 2010 | 37.0°C | 23.2°C | 30.1°C | 78 mm | 68% | 2.8 m/s | 5.1 |
| 2009 | 38.9°C | 24.4°C | 31.7°C | 91 mm | 54% | 4 m/s | 5.4 |
| 2008 | 39.2°C | 23.4°C | 31.3°C | 100 mm | 63% | 2.7 m/s | 5.7 |
| 2007 | 39.6°C | 23.9°C | 31.8°C | 109 mm | 64% | 3 m/s | 5.2 |
| 2006 | 39.7°C | 23.7°C | 31.7°C | 50 mm | 57% | 3.7 m/s | 5.5 |
| 2005 | 37.9°C | 24.4°C | 31.1°C | 43 mm | 60% | 3.4 m/s | 5.5 |
| 2004 ❄️ | 36.6°C | 22.6°C | 29.6°C | 92 mm | 72% | 2.8 m/s | 5.4 |
| 2003 | 37.1°C | 24.1°C | 30.6°C | 85 mm | 68% | 2.7 m/s | 4.9 |
| 2002 | 39.5°C | 24.7°C | 32.1°C | 26 mm | 55% | 3.3 m/s | 5.7 |
| 2001 | 39.2°C | 23.2°C | 31.2°C | 123 mm | 62% | 3.4 m/s | 5.6 |
| 2000 | 39.9°C | 23.7°C | 31.8°C | 99 mm | 60% | 3.3 m/s | 5.5 |
| 1999 | 37.5°C | 22.8°C | 30.2°C | 54 mm | 65% | 3.3 m/s | 5.6 |
| 1998 | 39.5°C | 23.8°C | 31.7°C | 93 mm | 64% | 2.9 m/s | 5.3 |
| 1997 | 38.6°C | 23.5°C | 31.0°C | 72 mm | 62% | 3.5 m/s | 4.9 |
| 1996 | 36.3°C | 23.3°C | 29.8°C | 27 mm | 70% | 3.1 m/s | 4.5 |
| 1995 | 36.6°C | 23.3°C | 30.0°C | 83 mm | 68% | 2.8 m/s | 4.8 |
| 1994 | 37.4°C | 23.5°C | 30.4°C | 70 mm | 64% | 3.7 m/s | 4.8 |
| 1993 | 38.9°C | 23.3°C | 31.1°C | 82 mm | 62% | 3.5 m/s | 5 |
| 1992 | 37.8°C | 23.3°C | 30.6°C | 57 mm | 65% | 3 m/s | 5 |
| 1991 | 37.4°C | 22.5°C | 30.0°C | 34 mm | 60% | 4 m/s | 4.7 |
| 1990 | 39.5°C | 22.5°C | 31.0°C | 50 mm | 57% | 3.3 m/s | 5.1 |
| 1989 | 38.5°C | 22.1°C | 30.3°C | 101 mm | 68% | 2.9 m/s | 5.1 |
| 1988 | 38.1°C | 23.5°C | 30.8°C | 113 mm | 69% | 2.7 m/s | 4.7 |
| 1987 🔥 | 41.0°C | 24.5°C | 32.7°C | 25 mm | 53% | 2.7 m/s | 5.6 |
| 1986 | 39.3°C | 24.3°C | 31.8°C | 34 mm | 55% | 3.1 m/s | 5.4 |
| 1985 | 37.1°C | 22.5°C | 29.8°C | 84 mm | 64% | 2.6 m/s | 5.1 |
| 1984 | 39.3°C | 22.6°C | 30.9°C | 168 mm | 66% | 3 m/s | 5.5 |
| 1983 | 40.2°C | 24.1°C | 32.1°C | 65 mm | 58% | 2.9 m/s | — |
| 1982 | 40.3°C | 22.7°C | 31.5°C | 85 mm | 63% | 3 m/s | — |
| 1981 | 37.4°C | 23.2°C | 30.3°C | 155 mm | 67% | 2.7 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 38.4°C with lows near 23.5°C (mean 31°C), based on 45 years of NASA POWER data.
July averages 82 mm of rainfall in Viluppuram, about average for rainfall. The wettest on record was 180 mm in 2021.
The hottest July reached 41°C in 1987. The coldest dipped to 22.1°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have fallen by about 0.1°C. Daytime highs moved from 38.9°C to 38°C and overnight lows from 23°C to 23.5°C over the same span.
July is one of the warmer months of the year in Viluppuram and about average for rainfall, so plan for around 38.4°C daytime highs and 23.5°C at night.
Not quite — July is the 9th coolest month in Viluppuram, averaging 31°C.
For July in Viluppuram, pack light, breathable clothing and sun protection, with typical highs of 38.4°C and lows of 23.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 63% — moderately humid.
Average wind speed in July is 3.1 m/s. The windiest July on record averaged 4 m/s (1991).
The wettest July on record was 2021 with 180 mm. On average, July sees 82 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 Viluppuram behaves each July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
