Climate Overview
The climate in Sāyalkudi is hot. The average annual temperature is 30°C and approximately 544mm of precipitation falls per year. November is the wettest month, receiving around 119mm 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 24°C to 38°C. April is the hottest month, with daytime highs reaching 38°C and an average of 33°C. January is the coolest month, with minimum temperatures around 24°C and an average of 27°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 3°C shift in average temperatures.
Precipitation
Sāyalkudi is a relatively dry area, receiving approximately 544mm of precipitation annually, which averages out to around 45mm per month. The wettest month is November, averaging 119mm of rainfall. May and October also tend to see above-average precipitation. The driest month is January, with just 3mm. That's 116mm 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 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 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
62 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 April at around 38°C, while the coldest stretch bottoms out in January near 24°C. Autumn is next, beginning on September 23, 2026 — 62 days from now.
Spring
Temperatures range from 26 to 38°C. Rainfall is relatively light, with around 129mm over the season and a monthly average of 43mm. 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 28 to 37°C. Rainfall is relatively light, with around 124mm over the season and a monthly average of 41mm. 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 37°C. Precipitation is moderate at around 233mm for the season, averaging 78mm per month. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 33°C. Rainfall is relatively light, with around 58mm over the season and a monthly average of 19mm. 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.