Climate Overview
The climate in Ayyampettāi is hot. The average annual temperature is 29°C and approximately 1053mm of precipitation falls per year. November is the wettest month, receiving around 260mm of rainfall. Ayyampettāi is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, June, April. The coldest months are January, February, December, when temperatures can drop to 22°C.
Temperature
Ayyampettāi sees moderate temperature variation throughout the year, ranging from 22°C to 37°C. May is the hottest month, with daytime highs reaching 37°C and an average of 32°C. January is the coolest month, with minimum temperatures around 22°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between February and March, with a 2°C shift in average temperatures.
Precipitation
Ayyampettāi is a moderately rainy area, receiving approximately 1053mm of precipitation annually, which averages out to around 88mm per month. The wettest month is November, averaging 260mm of rainfall. October and December also tend to see above-average precipitation. The driest month is February, with just 11mm. That's 249mm 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
Ayyampettāi is mildly breezy, with an average annual wind speed of 15km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 15km/h in winter, 14km/h in spring, 17km/h in summer, 13km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Ayyampettāi, which began on March 20, 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 May at around 37°C, while the coldest stretch bottoms out in January near 22°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 25 to 37°C. Rainfall is relatively light, with around 115mm over the season and a monthly average of 38mm. Winds are generally light, averaging 14km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 27 to 37°C. Precipitation is moderate at around 246mm for the season, averaging 82mm per month. Winds are moderate at around 17km/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 heavy, totalling around 519mm across the season with a monthly average of 173mm. Winds are generally light, averaging 13km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 32°C. Precipitation is moderate at around 173mm for the season, averaging 58mm per month. Winds are generally light, averaging 15km/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.
