Climate Overview
The climate in Mandapam is hot. The average annual temperature is 28°C and approximately 1250mm of precipitation falls per year. November is the wettest month, receiving around 440mm of rainfall. Mandapam sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Mandapam has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is May, when average highs reach 30°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 25°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.
Precipitation
Mandapam is a fairly wet location, receiving approximately 1250mm of precipitation annually, which averages out to around 104mm per month. The wettest month is November, averaging 440mm of rainfall. October and December also tend to see above-average precipitation. The driest month is June, with just 13mm. That's 427mm less than November, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Mandapam is moderately windy, with an average annual wind speed of 23km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 28km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in October, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 10km/h gap between the calmest and windiest months.
Seasons
7 days until Autumn
It is currently summer in Mandapam, which began on June 21, 2026. Mandapam sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in May at around 30°C, while the coldest stretch bottoms out in January near 25°C. Autumn is next, beginning on September 23, 2026 (7 days from now).
Spring
Temperatures range from 27 to 30°C. Rainfall is relatively light, with around 145mm over the season and a monthly average of 48mm. Winds are moderate at around 20km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 28 to 30°C. Rainfall is relatively light, with around 60mm over the season and a monthly average of 20mm. Winds are strong, averaging 25km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 710mm across the season with a monthly average of 237mm. Winds are moderate at around 21km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 27°C. Rainfall is heavy, totalling around 335mm across the season with a monthly average of 112mm. Winds are moderate at around 25km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Mandapam based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
