July is one of the cooler months of the year in Tirunelveli, with average highs near 30.5°C and lows around 21.4°C (mean 26°C). It is a relatively wet time of year, averaging 131 mm of rainfall and 86% relative humidity across the period.
July is one of the cooler months of the year in Tirunelveli. Across 45 years of records, the warmest July in Tirunelveli was 2022 — when the month averaged 28.2°C — while the coldest was 1985 at 24.1°C. Typical July days reach 30.5°C with nights near 21.4°C. The long-term trend is warming, about 0.6°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.2°C | 25.0°C | 25.7°C | 27.0°C | 27.1°C | +1.9°C |
| Avg High | 29.9°C | 28.7°C | 30.2°C | 32.2°C | 32.0°C | +2.1°C |
| Avg Low | 20.5°C | 21.3°C | 21.3°C | 21.8°C | 22.1°C | +1.6°C |
| Avg Rain | 132 mm | 210 mm | 165 mm | 55 mm | 70 mm | -62 mm |
July temperatures in Tirunelveli have risen by about 2.2°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 20.1°C (1984) to a record high of 34.3°C (1983).
Rainfall in July is a relatively wet time of year, averaging 131 mm, with a wettest year of 311 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.8°C per decade while lows rose 0.4°C per decade, widening the gap between day and night.
A good time to visit Tirunelveli
July is a good time to visit Tirunelveli, with days averaging 30.5°C and nights around 21.4°C (mean 26°C, close to Tirunelveli's yearly average) and higher rainfall. January and December are marginally more temperate, but July still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 30.6°C | 21.8°C | 26.2°C | 64 mm | 85% | 4.6 m/s | 4.9 |
| 2024 | 30.9°C | 22.3°C | 26.6°C | 74 mm | 86% | 4 m/s | 4.6 |
| 2023 | 33.3°C | 22.3°C | 27.8°C | 52 mm | 79% | 4.2 m/s | 5.1 |
| 2022 🔥 | 34.3°C | 22.1°C | 28.2°C | 56 mm | 80% | 4.1 m/s | 4.9 |
| 2021 | 30.9°C | 22.2°C | 26.5°C | 99 mm | 86% | 4.3 m/s | 5.4 |
| 2020 | 32.2°C | 22.1°C | 27.2°C | 73 mm | 83% | 3.5 m/s | 5 |
| 2019 | 34.0°C | 21.7°C | 27.8°C | 56 mm | 80% | 4 m/s | 5.1 |
| 2018 | 31.9°C | 21.4°C | 26.7°C | 80 mm | 83% | 4.8 m/s | 4.9 |
| 2017 | 33.5°C | 21.9°C | 27.7°C | 32 mm | 80% | 4.3 m/s | 5.6 |
| 2016 | 31.6°C | 22.0°C | 26.8°C | 39 mm | 83% | 4.2 m/s | 5.3 |
| 2015 | 31.5°C | 21.6°C | 26.6°C | 22 mm | 85% | 4.1 m/s | 5.4 |
| 2014 | 31.9°C | 21.8°C | 26.9°C | 49 mm | 81% | 4.9 m/s | 5.2 |
| 2013 | 30.1°C | 21.5°C | 25.8°C | 83 mm | 86% | 4.5 m/s | 4.5 |
| 2012 | 32.3°C | 22.7°C | 27.5°C | 53 mm | 79% | 4.5 m/s | 5.6 |
| 2011 | 32.3°C | 21.9°C | 27.1°C | 40 mm | 79% | 4.4 m/s | 4.9 |
| 2010 | 32.5°C | 21.4°C | 26.9°C | 92 mm | 82% | 4.1 m/s | 4.5 |
| 2009 | 31.5°C | 21.4°C | 26.4°C | 116 mm | 87% | 4.1 m/s | 4.8 |
| 2008 | 31.1°C | 20.7°C | 25.9°C | 142 mm | 85% | 4.1 m/s | 5 |
| 2007 | 28.2°C | 22.1°C | 25.1°C | 193 mm | 90% | 3.7 m/s | 4.8 |
| 2006 | 29.8°C | 20.9°C | 25.4°C | 157 mm | 89% | 4.1 m/s | 4.8 |
| 2005 | 28.3°C | 22.3°C | 25.3°C | 234 mm | 90% | 4.3 m/s | 4.8 |
| 2004 | 28.4°C | 21.6°C | 25.0°C | 257 mm | 90% | 3.9 m/s | 5.1 |
| 2003 | 30.5°C | 21.2°C | 25.9°C | 120 mm | 88% | 3.5 m/s | 5.1 |
| 2002 | 31.2°C | 21.5°C | 26.3°C | 59 mm | 82% | 4.8 m/s | 5.4 |
| 2001 🌧️ | 28.9°C | 20.3°C | 24.6°C | 311 mm | 90% | 4 m/s | 5.1 |
| 2000 | 33.6°C | 21.1°C | 27.4°C | 59 mm | 80% | 4.5 m/s | 5.5 |
| 1999 | 28.6°C | 21.0°C | 24.8°C | 139 mm | 89% | 4.2 m/s | 5.1 |
| 1998 | 29.0°C | 21.4°C | 25.2°C | 120 mm | 89% | 4.2 m/s | 5 |
| 1997 | 28.7°C | 21.7°C | 25.2°C | 220 mm | 90% | 4.1 m/s | 4.3 |
| 1996 | 29.7°C | 21.2°C | 25.4°C | 223 mm | 89% | 4.4 m/s | 4 |
| 1995 | 28.8°C | 20.8°C | 24.8°C | 116 mm | 88% | 3.9 m/s | 4.4 |
| 1994 | 29.0°C | 20.8°C | 24.9°C | 257 mm | 89% | 4 m/s | 4.4 |
| 1993 | 27.6°C | 21.4°C | 24.5°C | 268 mm | 90% | 4.6 m/s | 4.2 |
| 1992 | 28.5°C | 21.5°C | 25.0°C | 207 mm | 90% | 4.1 m/s | 4.6 |
| 1991 | 27.8°C | 21.6°C | 24.7°C | 273 mm | 91% | 3.7 m/s | 4.1 |
| 1990 | 29.5°C | 21.3°C | 25.4°C | 275 mm | 88% | 3.8 m/s | 4.7 |
| 1989 | 28.8°C | 20.3°C | 24.6°C | 217 mm | 89% | 4 m/s | 4.6 |
| 1988 | 28.7°C | 21.2°C | 24.9°C | 210 mm | 90% | 3.6 m/s | 4.6 |
| 1987 | 33.5°C | 20.3°C | 26.9°C | 41 mm | 81% | 3.8 m/s | 5.5 |
| 1986 | 30.8°C | 20.9°C | 25.8°C | 66 mm | 83% | 4.3 m/s | 4.9 |
| 1985 ❄️ | 27.7°C | 20.5°C | 24.1°C | 106 mm | 90% | 3.6 m/s | 5.3 |
| 1984 | 28.5°C | 20.1°C | 24.3°C | 119 mm | 87% | 4.1 m/s | 5.3 |
| 1983 | 34.3°C | 20.2°C | 27.3°C | 96 mm | 79% | 4 m/s | — |
| 1982 | 28.1°C | 20.3°C | 24.2°C | 181 mm | 90% | 3.3 m/s | — |
| 1981 | 28.6°C | 20.7°C | 24.7°C | 151 mm | 89% | 3.9 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 30.5°C with lows near 21.4°C (mean 26°C), based on 45 years of NASA POWER data.
July averages 131 mm of rainfall in Tirunelveli, a relatively wet time of year. The wettest on record was 311 mm in 2001.
The hottest July reached 34.3°C in 1983. The coldest dipped to 20.1°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 2.2°C. Daytime highs moved from 29.4°C to 32°C and overnight lows from 20.4°C to 22.1°C over the same span.
July is one of the cooler months of the year in Tirunelveli and a relatively wet time of year, so plan for around 30.5°C daytime highs and 21.4°C at night.
Not quite — July is the 4th coolest month in Tirunelveli, averaging 26°C.
For July in Tirunelveli, pack light, breathable clothing and sun protection, with typical highs of 30.5°C and lows of 21.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 86% — quite humid.
Average wind speed in July is 4.1 m/s. The windiest July on record averaged 4.9 m/s (2014).
The wettest July on record was 2001 with 311 mm. On average, July sees 131 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 Tirunelveli 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.
