Weather in Karaikudi, Tamil Nadu
Karaikudi, India is a growing city in the state of Tamil Nadu. Sitting at roughly 10.1°N, it falls in the tropical monsoon climate zone.
Climate Overview
The coastal regions receive heavy rainfall during both monsoon seasons, with tropical cyclones occasionally making landfall. Karaikudi's year splits into three broad phases — summer (March–June), monsoon (July–September) and post-monsoon/winter (October–February). Each has its own character and forecast challenges.
Weather by season in Karaikudi
Karaikudi's year divides into four broad seasons. The southwest monsoon normally arrives around 3 June. Daytime figures below are typical lowland values for this latitude — hill stations sit markedly cooler.
- Winter (Dec–Feb): days around 31°C, nights around 22°C. Mild, dry and one of the most pleasant times to visit.
- Summer / pre-monsoon (Mar–Jun): days around 37°C, nights around 26°C. Warm and humid, building towards the monsoon.
- Monsoon (Jul–Sep): days around 32°C, nights around 24°C. Frequent rain and high humidity; the wettest part of the year.
- Post-monsoon (Oct–Nov): days around 31°C, nights around 23°C. The northeast monsoon brings the main rains to the far south now.
Today's Weather in Karaikudi
Wondering what the weather is like in Karaikudi right now? See current conditions, today's high and low, and AQI in the live panel above.
Hourly Forecast
Planning your day in Karaikudi? The 24-hour forecast shows temperature changes, precipitation probability and wind conditions for each hour, helping you pick the best time for travel, outdoor work or events in Tamil Nadu.
7-Day Weather Forecast for Karaikudi
Tomorrow's weather, the day after and the full week ahead for Karaikudi are summarised in the 7-day outlook. Rain, cloud cover and wind direction are all shown.
Air Quality in Karaikudi
Air quality in Karaikudi is measured using the European Air Quality Index, with PM2.5 and PM10 particulate matter readings displayed alongside the live forecast. Local air quality varies based on seasonal agricultural burning, industrial activity and weather patterns.
Quick facts about Karaikudi
Karaikudi has a population of about 1,81,851; sits at 10.07°N; and is in India; its monsoon typically arrives in late May.
Common spellings
Local search audiences in Tamil Nadu often type the weather query in Tamil (தமிழ்). The Tamil word for weather is வானிலை, commonly transliterated as vaanilai, vanilai, vaaniilai, vanilaai. The Hindi मौसम (mausam, mosam, mausham) is also widely used across Karaikudi. All refer to the same thing — current weather, today's temperature and the forecast you'll find on this page.
Nearby Cities in Tamil Nadu
Explore weather forecasts for other cities in Tamil Nadu. See the "More in Tamil Nadu" section above, or browse the full list on our states page.