Climate Overview
The climate in Ayyampettāi is hot. The average annual temperature is 29°C and approximately 642mm of precipitation falls per year. May is the wettest month, receiving around 163mm of rainfall. Ayyampettāi is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, May, August. The coldest months are January, December, February, when temperatures can drop to 22°C.
Temperature
Ayyampettāi sees moderate temperature variation throughout the year, ranging from 22°C to 39°C. April is the hottest month, with daytime highs reaching 39°C and an average of 33°C. January is the coolest month, with minimum temperatures around 22°C and an average of 26°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 3°C shift in average temperatures.
Precipitation
Ayyampettāi is a relatively dry area, receiving approximately 642mm of precipitation annually, which averages out to around 53mm per month. The wettest month is May, averaging 163mm of rainfall. June and July also tend to see above-average precipitation. The driest month is March, with just 2mm. That's 162mm less than May, 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
Ayyampettāi is relatively calm, with an average annual wind speed of 3km/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 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
63 days until Autumn
It is currently summer in Ayyampettāi, which began on June 21, 2026. Ayyampettāi is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in April at around 39°C, while the coldest stretch bottoms out in January near 22°C. Autumn is next, beginning on September 23, 2026 — 63 days from now.
Spring
Temperatures range from 25 to 39°C. Precipitation is moderate at around 174mm for the season, averaging 58mm per month. Winds are generally light, averaging 3km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 27 to 36°C. Precipitation is moderate at around 269mm for the season, averaging 90mm per month. Winds are generally light, averaging 3km/h. Stay hydrated, wear sun protection, and seek shade during the hottest hours of the day.
Autumn
Temperatures range from 24 to 35°C. Rainfall is relatively light, with around 149mm over the season and a monthly average of 50mm. Winds are generally light, averaging 3km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 22 to 33°C. Rainfall is relatively light, with around 48mm over the season and a monthly average of 16mm. Winds are generally light, averaging 3km/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 Ayyampettāi 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.