Chennai, Tamil Nadu, India Average Monthly Weather

July35°C average high

July sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.

Warmest monthsMay to June

This stretch sets the upper range for average daytime heat.

July116mm average rain

July sits near Chennai's yearly rainfall average, so rain is a normal planning factor rather than an outlier.

Driest monthsJanuary to July

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

July5.7 hours average sun

July is one of Chennai's cloudier months, so sunshine-led plans are less reliable.

Brightest monthsJanuary to May

This stretch has the strongest sunshine in the monthly averages.

July29°C average sea

July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.

Warmest seaMarch to November

Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.

July58 weather score

July is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.

Best weather monthsJanuary to March

These months have the strongest weather score in the monthly averages.