July is one of the warmer months of the year in Namakkal, with average highs near 37.1°C and lows around 22.2°C (mean 29.7°C). It is about average for rainfall, averaging 55 mm of rainfall and 66% relative humidity across the period.
July is one of the warmer months of the year in Namakkal. Across 45 years of records, the warmest July in Namakkal was 1987 — when the month averaged 31.5°C — while the coldest was 1991 at 27.9°C. Typical July days reach 37.1°C with nights near 22.2°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 | 29.8°C | 28.9°C | 30.0°C | 29.9°C | 29.7°C | -0.1°C |
| Avg High | 37.7°C | 36.0°C | 37.5°C | 37.4°C | 36.9°C | -0.8°C |
| Avg Low | 21.8°C | 21.8°C | 22.5°C | 22.4°C | 22.5°C | +0.7°C |
| Avg Rain | 59 mm | 45 mm | 65 mm | 42 mm | 70 mm | +12 mm |
July temperatures in Namakkal have risen by about 0.4°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 21.1°C (1982) to a record high of 39.8°C (1987).
Rainfall in July is about average for rainfall, averaging 55 mm, with a wettest year of 133 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 Namakkal
July is a good time to visit Namakkal, with days averaging 37.1°C and nights around 22.2°C (mean 29.7°C, warmer than Namakkal'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 | 38.2°C | 22.4°C | 30.3°C | 15 mm | 63% | 4.4 m/s | 4.9 |
| 2024 | 36.9°C | 22.8°C | 29.9°C | 36 mm | 69% | 4.4 m/s | 4.6 |
| 2023 | 39.4°C | 22.5°C | 30.9°C | 42 mm | 63% | 4.3 m/s | 4.8 |
| 2022 | 35.6°C | 22.5°C | 29.1°C | 104 mm | 71% | 3.5 m/s | 5 |
| 2021 | 36.0°C | 22.4°C | 29.2°C | 92 mm | 73% | 3.5 m/s | 5.2 |
| 2020 🌧️ | 35.2°C | 22.7°C | 29.0°C | 133 mm | 73% | 2.6 m/s | 5.2 |
| 2019 | 37.9°C | 23.1°C | 30.5°C | 35 mm | 62% | 3.9 m/s | 5.2 |
| 2018 | 36.4°C | 22.2°C | 29.3°C | 57 mm | 69% | 4.5 m/s | 4.9 |
| 2017 | 39.4°C | 23.0°C | 31.2°C | 38 mm | 60% | 4.2 m/s | 5.3 |
| 2016 | 37.9°C | 21.2°C | 29.6°C | 81 mm | 66% | 3.8 m/s | 5.3 |
| 2015 | 37.6°C | 22.2°C | 29.9°C | 15 mm | 64% | 4 m/s | 5.9 |
| 2014 | 37.7°C | 22.8°C | 30.3°C | 16 mm | 63% | 4.9 m/s | 5.3 |
| 2013 | 36.6°C | 22.8°C | 29.7°C | 15 mm | 63% | 5.1 m/s | 4.7 |
| 2012 | 37.4°C | 22.6°C | 30.0°C | 44 mm | 64% | 3.9 m/s | 5.6 |
| 2011 | 37.1°C | 21.7°C | 29.4°C | 63 mm | 65% | 4.4 m/s | 5.3 |
| 2010 | 36.3°C | 22.1°C | 29.2°C | 52 mm | 68% | 3.8 m/s | 5 |
| 2009 | 38.7°C | 22.3°C | 30.5°C | 24 mm | 62% | 4.9 m/s | 5.1 |
| 2008 | 38.0°C | 22.5°C | 30.2°C | 121 mm | 64% | 3.7 m/s | 5.5 |
| 2007 | 36.1°C | 22.4°C | 29.3°C | 71 mm | 69% | 3.7 m/s | 4.9 |
| 2006 | 38.4°C | 23.0°C | 30.7°C | 10 mm | 61% | 4.9 m/s | 5.5 |
| 2005 | 36.5°C | 23.3°C | 29.9°C | 30 mm | 66% | 4.4 m/s | 5.3 |
| 2004 | 35.0°C | 21.1°C | 28.0°C | 108 mm | 73% | 3.4 m/s | 5.3 |
| 2003 | 36.5°C | 22.1°C | 29.3°C | 68 mm | 69% | 3.3 m/s | 5.1 |
| 2002 | 38.5°C | 22.6°C | 30.6°C | 7 mm | 60% | 4.5 m/s | 5.9 |
| 2001 | 38.8°C | 22.5°C | 30.6°C | 107 mm | 63% | 4.6 m/s | 5.6 |
| 2000 | 38.9°C | 22.8°C | 30.8°C | 101 mm | 60% | 4.5 m/s | 5.4 |
| 1999 | 36.1°C | 21.9°C | 29.0°C | 21 mm | 64% | 4.4 m/s | 5.4 |
| 1998 | 36.0°C | 22.8°C | 29.4°C | 52 mm | 67% | 4 m/s | 5.1 |
| 1997 | 36.3°C | 22.2°C | 29.2°C | 34 mm | 68% | 4.3 m/s | 4.9 |
| 1996 | 36.8°C | 22.0°C | 29.4°C | 29 mm | 69% | 4.1 m/s | 4.6 |
| 1995 | 36.3°C | 21.6°C | 29.0°C | 63 mm | 69% | 3.8 m/s | 4.8 |
| 1994 | 35.2°C | 21.6°C | 28.4°C | 69 mm | 68% | 4.4 m/s | 4.7 |
| 1993 | 35.0°C | 21.8°C | 28.4°C | 72 mm | 67% | 4.6 m/s | 5 |
| 1992 | 35.5°C | 22.2°C | 28.8°C | 56 mm | 69% | 3.9 m/s | 5 |
| 1991 ❄️ | 34.8°C | 21.1°C | 27.9°C | 21 mm | 68% | 4.4 m/s | 4.7 |
| 1990 | 37.8°C | 21.1°C | 29.5°C | 30 mm | 62% | 4.4 m/s | 5.2 |
| 1989 | 38.2°C | 21.3°C | 29.7°C | 92 mm | 70% | 3.6 m/s | 5.1 |
| 1988 | 36.5°C | 22.2°C | 29.3°C | 106 mm | 73% | 3.3 m/s | 4.8 |
| 1987 🔥 | 39.8°C | 23.1°C | 31.5°C | 27 mm | 58% | 4 m/s | 5.6 |
| 1986 | 37.6°C | 22.2°C | 29.9°C | 23 mm | 60% | 4.3 m/s | 5.4 |
| 1985 | 36.2°C | 21.6°C | 28.9°C | 28 mm | 63% | 4.1 m/s | 5.2 |
| 1984 | 35.9°C | 21.1°C | 28.5°C | 121 mm | 67% | 4 m/s | 5.4 |
| 1983 | 39.3°C | 22.0°C | 30.7°C | 14 mm | 60% | 4.3 m/s | — |
| 1982 | 38.6°C | 21.1°C | 29.9°C | 31 mm | 62% | 4.3 m/s | — |
| 1981 | 37.1°C | 22.0°C | 29.6°C | 88 mm | 69% | 3.7 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 37.1°C with lows near 22.2°C (mean 29.7°C), based on 45 years of NASA POWER data.
July averages 55 mm of rainfall in Namakkal, about average for rainfall. The wettest on record was 133 mm in 2020.
The hottest July reached 39.8°C in 1987. The coldest dipped to 21.1°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.4°C. Daytime highs moved from 37.4°C to 37.2°C and overnight lows from 21.6°C to 22.5°C over the same span.
July is one of the warmer months of the year in Namakkal and about average for rainfall, so plan for around 37.1°C daytime highs and 22.2°C at night.
Not quite — July is the 8th coolest month in Namakkal, averaging 29.7°C.
For July in Namakkal, pack light, breathable clothing and sun protection, with typical highs of 37.1°C and lows of 22.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 66% — moderately humid.
Average wind speed in July is 4.1 m/s. The windiest July on record averaged 5.1 m/s (2013).
The wettest July on record was 2020 with 133 mm. On average, July sees 55 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 Namakkal 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.
