Thiruthani climate — normals and trends
Thiruthani (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.6 °C and it receives 843 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is May (32.0 °C on average) and the coldest is January (23.1 °C). Rainfall peaks in October.
Thiruthani averages 0 frost days, 269 hot days (≥ 30 °C) and 120 rainy days per year.
Thiruthani has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The hottest day of the period reached 44.4 °C (on 9 May 1964) and the coldest 12.2 °C (on 26 December 1941).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
ThiruthaniTamil Nadu
- coords
- 13.18°, 79.62°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.6°C
Average daily high
32.9°C
Average daily low
23.4°C
Annual rainfall
843mm
Sunshine / day
10.0h
Mean relative humidity
68%
Average peak wind
14.5km/h
Seasonal range
8.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
269 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.0 °C
Average feels-like low
26.6 °C
Average peak gust
33.3 km/h
Tropical nights (≥ 20 °C)
298 d/yr
Solar radiation
19.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.34 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
44.4 °C
9 May 1964
Coldest day
12.2 °C
26 December 1941
Wettest day
198 mm
16 October 2001
Windiest day
46.7 km/h
12 December 2016
Strongest gust
105.1 km/h
12 December 2016
Hottest feels-like
48.1 °C
9 May 1996
Coldest feels-like
11.6 °C
11 December 1981
Sunniest day
12.7 h
31 May 1952
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 28.7 °C | +0.1 °C | 11 mm | -4 mm |
| Feb | 32.8 °C | +1.1 °C | 0 mm | -7 mm |
| Mar | 35.2 °C | +0.4 °C | 12 mm | -1 mm |
| Apr | 37.5 °C | +0.4 °C | 15 mm | -1 mm |
| May | 35.8 °C | -2.5 °C | 101 mm | +52 mm |
| Jun | 37.1 °C | +0.9 °C | 43 mm | -30 mm |
| Jul | 36.1 °C | +1.6 °C | 48 mm | -43 mm |
| Aug | 33.3 °C | -0.5 °C | 167 mm | +59 mm |
| Sep | 33.6 °C | +0.5 °C | 63 mm | -63 mm |
| Oct | 31.1 °C | +0.2 °C | 171 mm | +20 mm |
| Nov | 29.5 °C | +0.9 °C | 91 mm | -41 mm |
| Dec | 27.9 °C | +0.4 °C | 45 mm | -19 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Thiruthani?
Thiruthani has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.6 °C and it receives 843 mm of precipitation per year.
What is the hottest day ever recorded in Thiruthani?
The hottest day measured in Thiruthani between 1940 and 2025 was 9 May 1964, reaching 44.4 °C.
What is the coldest day in Thiruthani?
The coldest day measured in Thiruthani between 1940 and 2025 was 26 December 1941, at 12.2 °C.
Does it snow in Thiruthani?
Almost never: Thiruthani sees virtually no snow, with about 0 frost days per year.
Has the climate of Thiruthani warmed?
Yes: Thiruthani warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Thiruthani?
The wettest day measured in Thiruthani between 1940 and 2025 was 16 October 2001, with 198 mm of rain in 24 hours.
What was the windiest day in Thiruthani?
The windiest day measured in Thiruthani between 1940 and 2025 was 12 December 2016, with winds reaching 46.7 km/h.
What is the warmest month in Thiruthani?
The warmest month in Thiruthani is May (32.0 °C on average); the coldest is January (23.1 °C).
How much does it rain in Thiruthani?
Thiruthani receives on average 843 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Thiruthani?
Thiruthani gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
Are there tropical nights in Thiruthani?
Yes: Thiruthani has on average 298 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Thiruthani?
In Thiruthani, between 1940 and 2025, the highest apparent temperature reached 48.1 °C on 9 May 1996, and the lowest was 11.6 °C on 11 December 1981.
Compare Thiruthani with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Thiruthani