Climate Overview
The climate in Kayalpattinam is hot. The average annual temperature is 29°C and approximately 986mm of precipitation falls per year. November is the wettest month, receiving around 327mm of rainfall. Kayalpattinam sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Kayalpattinam has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is May, when average highs reach 33°C and the mean temperature sits around 30°C. January is the coolest month, with minimum temperatures around 24°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.
Precipitation
Kayalpattinam is a moderately rainy area, receiving approximately 986mm of precipitation annually, which averages out to around 82mm per month. The wettest month is November, averaging 327mm of rainfall. October and December also tend to see above-average precipitation. The driest month is June, with just 15mm. That's 312mm 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
Kayalpattinam is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 20km/h, noticeable enough to affect lighter 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 8km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 19km/h in winter, 14km/h in spring, 17km/h in summer, 14km/h in autumn.
Seasons
7 days until Autumn
It is currently summer in Kayalpattinam, which began on June 21, 2026. Kayalpattinam 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 33°C, while the coldest stretch bottoms out in January near 24°C. Autumn is next, beginning on September 23, 2026 (7 days from now).
Spring
Temperatures range from 26 to 33°C. Rainfall is relatively light, with around 133mm over the season and a monthly average of 44mm. Winds are generally light, averaging 14km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 27 to 33°C. Rainfall is relatively light, with around 61mm over the season and a monthly average of 20mm. Winds are moderate at around 17km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 32°C. Rainfall is heavy, totalling around 522mm across the season with a monthly average of 174mm. Winds are generally light, averaging 14km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 30°C. Precipitation is moderate at around 270mm for the season, averaging 90mm per month. Winds are moderate at around 19km/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 Kayalpattinam 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.
