July is one of the warmer months of the year in Viluppuram, with average highs near 35°C and lows around 25.2°C (mean 30.1°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 2017 — when the month averaged 31.8°C — while the coldest was 2004 at 28.5°C. Typical July days reach 35°C with nights near 25.2°C. The long-term trend is warming, about 0.2°C per decade.
July is about average for rainfall in Viluppuram, averaging 82 mm of rainfall. The wettest July on record was 2021 with 180 mm, while the driest was 1987 at 25 mm.
Relative humidity in Viluppuram during July averages 63%. The most humid July was 2020 at 76%, and the least humid was 1987 at 53%.
July receives about 5.2 kWh/m²/day of solar energy in Viluppuram. The sunniest July was 2015 at 6 kWh/m²/day, and the cloudiest was 1996 at 4.5.
Average wind speed in Viluppuram during July is 3.1 m/s. The windiest Julys were 1991 and 2009 at 4 m/s, while the calmest was 2020 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.7°C | 29.8°C | 30.4°C | 30.5°C | 29.8°C | +0.1°C |
| Avg High | 34.5°C | 34.8°C | 35.4°C | 35.6°C | 34.5°C | 0°C |
| Avg Low | 25.0°C | 24.8°C | 25.5°C | 25.4°C | 25.1°C | +0.1°C |
| Avg Rain | 92 mm | 62 mm | 82 mm | 76 mm | 110 mm | +18 mm |
July temperatures in Viluppuram have risen by about 0.5°C between 1981–1985 and 2021–2025.
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.
A good time to visit Viluppuram
July is a good time to visit Viluppuram, with days averaging 35°C and nights around 25.2°C (mean 30.1°C, warmer than Viluppuram's yearly average) and higher rainfall. January and February are marginally more temperate, but July still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 36.7°C | 31.3°C | 25.9°C | 39.4°C | 23.7°C | 38 mm | 57% | 3.1 m/s | 5.1 |
| 2024 | 35.5°C | 30.3°C | 25.1°C | 38.0°C | 23.9°C | 65 mm | 64% | 3.6 m/s | 4.9 |
| 2023 | 35.1°C | 30.0°C | 25.0°C | 39.2°C | 23.0°C | 102 mm | 66% | 3 m/s | 5 |
| 2022 | 33.9°C | 29.4°C | 24.9°C | 36.9°C | 23.9°C | 123 mm | 70% | 2.7 m/s | 5.2 |
| 2021 🌧️ | 33.2°C | 28.9°C | 24.6°C | 36.4°C | 23.1°C | 180 mm | 75% | 2.6 m/s | 5.3 |
| 2020 | 32.4°C | 28.7°C | 24.9°C | 35.9°C | 24.1°C | 153 mm | 76% | 2.1 m/s | 5.1 |
| 2019 | 35.4°C | 30.6°C | 25.8°C | 38.7°C | 24.3°C | 107 mm | 63% | 2.7 m/s | 5.1 |
| 2018 | 36.0°C | 30.8°C | 25.5°C | 38.5°C | 24.3°C | 61 mm | 61% | 3.3 m/s | 5.1 |
| 2017 🔥 | 37.1°C | 31.8°C | 26.6°C | 40.6°C | 24.5°C | 92 mm | 55% | 2.7 m/s | 5.3 |
| 2016 | 34.4°C | 29.6°C | 24.8°C | 37.4°C | 22.8°C | 94 mm | 68% | 2.7 m/s | 5.5 |
| 2015 | 37.2°C | 31.6°C | 25.9°C | 40.0°C | 24.0°C | 57 mm | 58% | 2.9 m/s | 6 |
| 2014 | 36.4°C | 31.2°C | 25.9°C | 38.7°C | 24.3°C | 29 mm | 58% | 3.7 m/s | 5.6 |
| 2013 | 35.1°C | 29.8°C | 24.6°C | 37.5°C | 23.5°C | 59 mm | 63% | 3.5 m/s | 4.8 |
| 2012 | 35.6°C | 30.5°C | 25.4°C | 38.4°C | 24.1°C | 86 mm | 62% | 2.7 m/s | 5.6 |
| 2011 | 35.2°C | 29.9°C | 24.7°C | 37.6°C | 23.2°C | 99 mm | 63% | 3.2 m/s | 5.5 |
| 2010 | 34.0°C | 29.2°C | 24.4°C | 37.0°C | 23.2°C | 78 mm | 68% | 2.8 m/s | 5.1 |
| 2009 | 36.8°C | 31.5°C | 26.2°C | 38.9°C | 24.4°C | 91 mm | 54% | 4 m/s | 5.4 |
| 2008 | 34.7°C | 30.1°C | 25.5°C | 39.2°C | 23.4°C | 100 mm | 63% | 2.7 m/s | 5.7 |
| 2007 | 34.9°C | 30.3°C | 25.8°C | 39.6°C | 23.9°C | 109 mm | 64% | 3 m/s | 5.2 |
| 2006 | 36.9°C | 31.3°C | 25.7°C | 39.7°C | 23.7°C | 50 mm | 57% | 3.7 m/s | 5.5 |
| 2005 | 35.3°C | 30.6°C | 26.0°C | 37.9°C | 24.4°C | 43 mm | 60% | 3.4 m/s | 5.5 |
| 2004 ❄️ | 32.8°C | 28.5°C | 24.2°C | 36.6°C | 22.6°C | 92 mm | 72% | 2.8 m/s | 5.4 |
| 2003 | 34.0°C | 29.5°C | 25.1°C | 37.1°C | 24.1°C | 85 mm | 68% | 2.7 m/s | 4.9 |
| 2002 | 37.3°C | 31.7°C | 26.1°C | 39.5°C | 24.7°C | 26 mm | 55% | 3.3 m/s | 5.7 |
| 2001 | 35.3°C | 30.4°C | 25.4°C | 39.2°C | 23.2°C | 123 mm | 62% | 3.4 m/s | 5.6 |
| 2000 | 35.5°C | 30.4°C | 25.3°C | 39.9°C | 23.7°C | 99 mm | 60% | 3.3 m/s | 5.5 |
| 1999 | 34.4°C | 29.5°C | 24.6°C | 37.5°C | 22.8°C | 54 mm | 65% | 3.3 m/s | 5.6 |
| 1998 | 34.7°C | 30.2°C | 25.6°C | 39.5°C | 23.8°C | 93 mm | 64% | 2.9 m/s | 5.3 |
| 1997 | 35.7°C | 30.5°C | 25.2°C | 38.6°C | 23.5°C | 72 mm | 62% | 3.5 m/s | 4.9 |
| 1996 | 33.7°C | 28.9°C | 24.2°C | 36.3°C | 23.3°C | 27 mm | 70% | 3.1 m/s | 4.5 |
| 1995 | 34.1°C | 29.4°C | 24.7°C | 36.6°C | 23.3°C | 83 mm | 68% | 2.8 m/s | 4.8 |
| 1994 | 34.6°C | 29.6°C | 24.6°C | 37.4°C | 23.5°C | 70 mm | 64% | 3.7 m/s | 4.8 |
| 1993 | 34.9°C | 29.9°C | 24.8°C | 38.9°C | 23.3°C | 82 mm | 62% | 3.5 m/s | 5 |
| 1992 | 34.3°C | 29.7°C | 25.0°C | 37.8°C | 23.3°C | 57 mm | 65% | 3 m/s | 5 |
| 1991 | 35.4°C | 30.0°C | 24.5°C | 37.4°C | 22.5°C | 34 mm | 60% | 4 m/s | 4.7 |
| 1990 | 36.0°C | 30.5°C | 25.0°C | 39.5°C | 22.5°C | 50 mm | 57% | 3.3 m/s | 5.1 |
| 1989 | 33.1°C | 28.8°C | 24.5°C | 38.5°C | 22.1°C | 101 mm | 68% | 2.9 m/s | 5.1 |
| 1988 | 33.6°C | 29.2°C | 24.9°C | 38.1°C | 23.5°C | 113 mm | 69% | 2.7 m/s | 4.7 |
| 1987 | 36.7°C | 31.6°C | 26.5°C | 41.0°C | 24.5°C | 25 mm | 53% | 2.7 m/s | 5.6 |
| 1986 | 35.8°C | 30.7°C | 25.6°C | 39.3°C | 24.3°C | 34 mm | 55% | 3.1 m/s | 5.4 |
| 1985 | 33.8°C | 29.0°C | 24.1°C | 37.1°C | 22.5°C | 84 mm | 64% | 2.6 m/s | 5.1 |
| 1984 | 33.6°C | 28.9°C | 24.2°C | 39.3°C | 22.6°C | 168 mm | 66% | 3 m/s | 5.5 |
| 1983 | 35.4°C | 30.5°C | 25.6°C | 40.2°C | 24.1°C | 65 mm | 58% | 2.9 m/s | — |
| 1982 | 34.6°C | 29.6°C | 24.7°C | 40.3°C | 22.7°C | 85 mm | 63% | 3 m/s | — |
| 1981 | 33.6°C | 29.3°C | 24.9°C | 37.4°C | 23.2°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 35°C with lows near 25.2°C (mean 30.1°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 risen by about 0.5°C. Daytime highs moved from 34.2°C to 34.9°C and overnight lows from 24.7°C to 25.1°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 35°C daytime highs and 25.2°C at night.
Not quite — July is the 9th coolest month in Viluppuram, averaging 30.1°C.
For July in Viluppuram, pack light, breathable clothing and sun protection, with typical highs of 35°C and lows of 25.2°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.
