July is one of the warmer months of the year in Perambalur, with average highs near 37.9°C and lows around 22.8°C (mean 30.4°C). It is one of the drier months, averaging 58 mm of rainfall and 63% relative humidity across the period.
July is one of the warmer months of the year in Perambalur. Across 45 years of records, the warmest July in Perambalur was 2017 — when the month averaged 32.3°C — while the coldest were 1991 and 2004 at 28.9°C. Typical July days reach 37.9°C with nights near 22.8°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 | 30.5°C | 29.7°C | 30.8°C | 30.6°C | 30.3°C | -0.2°C |
| Avg High | 38.5°C | 37.0°C | 38.4°C | 38.1°C | 37.6°C | -0.9°C |
| Avg Low | 22.5°C | 22.4°C | 23.2°C | 23.1°C | 23.0°C | +0.5°C |
| Avg Rain | 62 mm | 46 mm | 67 mm | 47 mm | 76 mm | +14 mm |
July temperatures in Perambalur have stayed relatively stable across the record.
July has ranged from a record low of 21.3°C (1989) to a record high of 40.4°C (2017).
Rainfall in July is one of the drier months, averaging 58 mm, with a wettest year of 156 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Perambalur
July is a good time to visit Perambalur, with days averaging 37.9°C and nights around 22.8°C (mean 30.4°C, warmer than Perambalur's yearly average) and moderate rainfall. January and December are marginally more temperate, but July still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 39.7°C | 22.9°C | 31.3°C | 12 mm | 59% | 4.3 m/s | 4.9 |
| 2024 | 37.7°C | 23.3°C | 30.5°C | 25 mm | 66% | 4.4 m/s | 4.6 |
| 2023 | 40.2°C | 23.0°C | 31.6°C | 50 mm | 62% | 4 m/s | 4.8 |
| 2022 | 35.8°C | 23.0°C | 29.4°C | 99 mm | 69% | 3.4 m/s | 5 |
| 2021 | 36.5°C | 22.8°C | 29.6°C | 115 mm | 72% | 3.4 m/s | 5.2 |
| 2020 🌧️ | 35.4°C | 23.1°C | 29.2°C | 156 mm | 73% | 2.5 m/s | 5.2 |
| 2019 | 38.7°C | 23.4°C | 31.1°C | 48 mm | 60% | 3.6 m/s | 5.2 |
| 2018 | 37.0°C | 23.1°C | 30.1°C | 65 mm | 66% | 4.3 m/s | 4.9 |
| 2017 🔥 | 40.4°C | 24.1°C | 32.3°C | 51 mm | 55% | 4 m/s | 5.3 |
| 2016 | 38.8°C | 22.1°C | 30.4°C | 91 mm | 65% | 3.5 m/s | 5.3 |
| 2015 | 37.7°C | 22.8°C | 30.2°C | 19 mm | 62% | 3.8 m/s | 5.9 |
| 2014 | 38.6°C | 23.5°C | 31.0°C | 21 mm | 59% | 4.8 m/s | 5.3 |
| 2013 | 37.6°C | 23.4°C | 30.5°C | 16 mm | 59% | 5.1 m/s | 4.7 |
| 2012 | 37.8°C | 23.5°C | 30.6°C | 46 mm | 63% | 3.7 m/s | 5.6 |
| 2011 | 37.9°C | 22.3°C | 30.1°C | 63 mm | 62% | 4.3 m/s | 5.3 |
| 2010 | 36.2°C | 22.6°C | 29.4°C | 51 mm | 66% | 3.7 m/s | 5 |
| 2009 | 39.5°C | 23.7°C | 31.6°C | 21 mm | 57% | 4.9 m/s | 5.1 |
| 2008 | 38.3°C | 22.5°C | 30.4°C | 122 mm | 62% | 3.5 m/s | 5.5 |
| 2007 | 37.1°C | 23.2°C | 30.1°C | 73 mm | 66% | 3.7 m/s | 4.9 |
| 2006 | 39.8°C | 24.0°C | 31.9°C | 8 mm | 56% | 4.9 m/s | 5.5 |
| 2005 | 36.9°C | 24.0°C | 30.4°C | 28 mm | 63% | 4.3 m/s | 5.3 |
| 2004 | 36.1°C | 21.7°C | 28.9°C | 114 mm | 71% | 3.3 m/s | 5.3 |
| 2003 | 36.9°C | 22.8°C | 29.8°C | 71 mm | 67% | 3.2 m/s | 5.1 |
| 2002 | 39.5°C | 23.8°C | 31.6°C | 6 mm | 56% | 4.3 m/s | 5.9 |
| 2001 | 39.7°C | 23.0°C | 31.3°C | 114 mm | 60% | 4.5 m/s | 5.6 |
| 2000 | 39.9°C | 23.5°C | 31.7°C | 109 mm | 57% | 4.4 m/s | 5.4 |
| 1999 | 37.3°C | 22.6°C | 29.9°C | 22 mm | 61% | 4.3 m/s | 5.4 |
| 1998 | 37.8°C | 23.2°C | 30.5°C | 54 mm | 65% | 3.9 m/s | 5.1 |
| 1997 | 37.5°C | 22.7°C | 30.1°C | 34 mm | 66% | 4.3 m/s | 4.9 |
| 1996 | 36.4°C | 22.6°C | 29.5°C | 27 mm | 68% | 4 m/s | 4.6 |
| 1995 | 36.3°C | 22.3°C | 29.3°C | 66 mm | 69% | 3.6 m/s | 4.8 |
| 1994 | 36.7°C | 22.0°C | 29.4°C | 69 mm | 66% | 4.3 m/s | 4.7 |
| 1993 | 36.4°C | 22.1°C | 29.3°C | 76 mm | 65% | 4.5 m/s | 5 |
| 1992 | 37.0°C | 22.5°C | 29.8°C | 57 mm | 67% | 3.8 m/s | 5 |
| 1991 ❄️ | 36.1°C | 21.7°C | 28.9°C | 20 mm | 66% | 4.4 m/s | 4.7 |
| 1990 | 38.7°C | 22.1°C | 30.4°C | 31 mm | 59% | 4.3 m/s | 5.2 |
| 1989 | 38.6°C | 21.3°C | 30.0°C | 97 mm | 69% | 3.5 m/s | 5.1 |
| 1988 | 37.6°C | 22.7°C | 30.1°C | 110 mm | 72% | 3.2 m/s | 4.8 |
| 1987 | 40.2°C | 23.9°C | 32.1°C | 31 mm | 54% | 3.8 m/s | 5.6 |
| 1986 | 38.3°C | 22.9°C | 30.6°C | 24 mm | 57% | 4.1 m/s | 5.4 |
| 1985 | 37.4°C | 22.1°C | 29.7°C | 30 mm | 59% | 3.9 m/s | 5.2 |
| 1984 | 37.1°C | 21.8°C | 29.5°C | 126 mm | 66% | 3.9 m/s | 5.4 |
| 1983 | 40.0°C | 22.9°C | 31.5°C | 15 mm | 56% | 4.1 m/s | — |
| 1982 | 39.8°C | 22.1°C | 30.9°C | 32 mm | 58% | 4.2 m/s | — |
| 1981 | 37.6°C | 22.5°C | 30.1°C | 94 mm | 66% | 3.6 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 37.9°C with lows near 22.8°C (mean 30.4°C), based on 45 years of NASA POWER data.
July averages 58 mm of rainfall in Perambalur, one of the drier months. The wettest on record was 156 mm in 2020.
The hottest July reached 40.4°C in 2017. The coldest dipped to 21.3°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.2°C. Daytime highs moved from 38.4°C to 38°C and overnight lows from 22.3°C to 23°C over the same span.
July is one of the warmer months of the year in Perambalur and one of the drier months, so plan for around 37.9°C daytime highs and 22.8°C at night.
Not quite — July is the 9th coolest month in Perambalur, averaging 30.4°C.
For July in Perambalur, pack light, breathable clothing and sun protection, with typical highs of 37.9°C and lows of 22.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 63% — moderately humid.
Average wind speed in July is 4 m/s. The windiest July on record averaged 5.1 m/s (2013).
The wettest July on record was 2020 with 156 mm. On average, July sees 58 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 Perambalur 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.
