Chennai weather in July

Tamil Nadu, India · long-term averages 2001–2025 · full-year climate of Chennai

Average high
34 °C93 °F
Average low
26 °C79 °F
Precipitation
108 mm4.3 in
Daylight
12.8 h
Humidity
67%
Cloud amount
83%

In July, Chennai has an average high of 34 °C93 °F and an average low of 26 °C79 °F, with about 108 mm4.3 in of precipitation. It is the 4th warmest month of the year and ranks 6th for precipitation.

How July compares with other months

Compared with June, July is 0.9 °C1.6 °F cooler on average and wetter by 40 mm1.6 in. Compared with August, July is 0.7 °C1.3 °F warmer on average and drier by 24 mm0.9 in. Daylight lasts about 12.8 hours around the middle of the month. Average relative humidity is 67% and the average cloud amount 83%.

Is July a good time to visit Chennai?

July is not among the most comfortable months by our comfort score: it is hot (average high 34 °C93 °F) and it is fairly wet (108 mm4.3 in). The most comfortable months in Chennai are January.

What to wear in July

For Chennai in July, pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.

July in nearby places

July averages in nearby places
PlaceHigh °C°FLow °C°FPrecip. mmin
Chennai349326791084.3
Pallavaram349326791084.3
Kanchipuram339225781084.3
Tirupati349424761034.1
Vellore349324751064.2
Chittoor339223731064.2
Puducherry32902781813.2
Nellore34932780943.7
Tiruvannamalai34942476823.2

Nearby places that are more than 1 °C1.8 °F cooler: Vellore and Chittoor.

Other months in Chennai

  • January28 °C82 °F / 21 °C69 °F
  • February30 °C87 °F / 21 °C70 °F
  • March34 °C93 °F / 23 °C74 °F
  • April36 °C96 °F / 26 °C79 °F
  • May36 °C97 °F / 27 °C81 °F
  • June35 °C95 °F / 27 °C80 °F
  • July34 °C93 °F / 26 °C79 °F
  • August33 °C91 °F / 25 °C78 °F
  • September32 °C89 °F / 25 °C77 °F
  • October30 °C87 °F / 25 °C77 °F
  • November29 °C83 °F / 23 °C74 °F
  • December27 °C81 °F / 22 °C71 °F

Frequently asked questions

How warm is Chennai in July?

In July the average high in Chennai is 34 °C (93 °F) and the average low is 26 °C (79 °F).

Does it rain a lot in Chennai in July?

On average about 108 mm (4.3 in) of precipitation falls in July; it ranks 6th of the 12 months.

Is July the warmest month in Chennai?

No. The warmest month in Chennai is May, with an average high of 36 °C (97 °F). The coldest month is January, with an average low of 21 °C (69 °F).

How long is the day in Chennai in July?

In the middle of July the day in Chennai lasts about 12.8 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.

How humid is Chennai in July?

The average relative humidity in July is about 67%. This is a long-term average for the whole day.

How cloudy is Chennai in July?

On average about 83% of the sky is covered by cloud in July. This is the mean cloud amount from satellite data, not the number of sunny days.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.