Climate Overview
The climate in Sāyalkudi is hot. The average annual temperature is 30°C and approximately 877mm of precipitation falls per year. November is the wettest month, receiving around 197mm of rainfall. Sāyalkudi sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Sāyalkudi sees moderate temperature variation throughout the year, ranging from 23°C to 38°C. June is the hottest month, with daytime highs reaching 38°C and an average of 32°C. January is the coolest month, with minimum temperatures around 23°C and an average of 27°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
Sāyalkudi is a moderately rainy area, receiving approximately 877mm of precipitation annually, which averages out to around 73mm per month. The wettest month is November, averaging 197mm of rainfall. October and December also tend to see above-average precipitation. The driest month is February, with just 10mm. That's 186mm 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
Sāyalkudi is relatively calm, with an average annual wind speed of 4km/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 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.
Seasons
91 days until Autumn
It is currently summer in Sāyalkudi, which began on June 21, 2026. Sāyalkudi sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in June at around 38°C, while the coldest stretch bottoms out in January near 23°C. Autumn is next, beginning on September 23, 2026 — 91 days from now.
Spring
Temperatures range from 26 to 37°C. Rainfall is relatively light, with around 111mm over the season and a monthly average of 37mm. 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 38°C. Precipitation is moderate at around 156mm for the season, averaging 52mm per month. Winds are generally light, averaging 4km/h. Stay hydrated, wear sun protection, and seek shade during the hottest hours of the day.
Autumn
Temperatures range from 25 to 36°C. Rainfall is heavy, totalling around 438mm across the season with a monthly average of 146mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 33°C. Precipitation is moderate at around 172mm for the season, averaging 57mm per month. Winds are generally light, averaging 4km/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 Sāyalkudi 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.
