Coonoor Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Coonoor.
Climate overview of Coonoor
Coonoor, Tamil Nadu, India, has a stable climate with little temperature variation across the year. Average daytime temperatures hover around 28°C (82°F), peaking in April at 31°C (88°F) and dipping in December to 26°C (79°F).
The city has a wet climate, receiving around 1675 mm (66 in) of rainfall per year. Despite the high annual total, it has distinct dry (January to February) and wet (June to October) seasons. July is the wettest month.
Coonoor Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Coonoor - and find the best time to visit.
Monthly Temperature in Coonoor
With minimal seasonal shifts, Coonoor experiences a constant climate year-round. On average, daytime temperatures range from a very warm 31°C (88°F) in April to a comfortable 26°C (79°F) in December.
Nighttime temperatures range from 21°C (70°F) in April to 16°C (61°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Coonoor
Coonoor has a notably wet climate with abundant precipitation, recording 1675 mm (66 in) of rainfall per year. The seasons in Coonoor bring significant changes in precipitation. The wettest month, July, receives heavy rainfall, with an average of 238 mm (9.4 in) of precipitation. This rainfall is distributed across 9 rainy days.
In contrast, the driest month, January, experiences much less rainfall, totaling 23 mm (0.9 in) over a single rainy day. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Coonoor Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Humidity in Coonoor by Month
The relative humidity is moderate throughout the year in Coonoor.
The city experiences its highest humidity in July, reaching 68%. In March, the humidity drops to its lowest level at 31%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Coonoor
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February and December
- Warmest weather: March, April and May
- Fewest rainy days: January, February and March
- Seasonal pattern: Distinct dry (January to February) and wet (June to October) seasons
Frequently asked questions about the climate in Coonoor
What is the best time to visit Coonoor?
January, February and December typically offer the most optimal weather in Coonoor. In contrast, May, June, July, August and October tend to have less optimal conditions. Coonoor has distinct dry (January to February) and wet (June to October) seasons.
What temperatures can I expect in Coonoor?
Daytime highs range from 26°C (79°F) in December to 31°C (88°F) in April. Nighttime lows range from 16°C (61°F) to 21°C (70°F). Temperatures stay relatively stable year-round.
How much rain does Coonoor get?
Annual rainfall is around 1675 mm (66 in). July is the wettest month with 238 mm (9.4 in), while January is the driest with 23 mm (0.9 in).
Coonoor 3-Day Forecast
Coonoor on the map
Coonoor is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Jaipur
35°C (95°F) Gurugram36°C (97°F) New Delhi36°C (97°F) Chennai
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29°C (84°F) Kochi28°C (82°F) 
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