Periyakulam climate — normals and trends
Periyakulam (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.0 °C and it receives 828 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 April (27.7 °C on average) and the coldest is December (22.6 °C). Rainfall peaks in October.
Periyakulam averages 0 frost days, 201 hot days (≥ 30 °C) and 143 rainy days per year.
Periyakulam has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.4 °C (on 12 May 1988) and the coldest 10.0 °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
PeriyakulamTamil Nadu
- coords
- 10.12°, 77.54°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.0°C
Average daily high
30.5°C
Average daily low
20.3°C
Annual rainfall
828mm
Sunshine / day
9.9h
Mean relative humidity
68%
Average peak wind
8.8km/h
Seasonal range
5.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
201 d/yr
Rainy days (≥ 1 mm)
143 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.0 °C
Average feels-like low
22.5 °C
Average peak gust
31.9 km/h
Tropical nights (≥ 20 °C)
240 d/yr
Solar radiation
19.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.76 · 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
39.4 °C
12 May 1988
Coldest day
10.0 °C
26 December 1941
Wettest day
224 mm
28 October 1959
Windiest day
21.9 km/h
19 May 1943
Strongest gust
95.0 km/h
13 November 1992
Hottest feels-like
42.8 °C
2 June 2014
Coldest feels-like
8.7 °C
26 December 1941
Sunniest day
12.2 h
23 May 1981
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 27.9 °C | -0.4 °C | 39 mm | +21 mm |
| Feb | 30.8 °C | +0.1 °C | 3 mm | -10 mm |
| Mar | 31.5 °C | -1.7 °C | 82 mm | +64 mm |
| Apr | 32.3 °C | -1.9 °C | 95 mm | +61 mm |
| May | 31.8 °C | -1.8 °C | 145 mm | +79 mm |
| Jun | 30.6 °C | -0.2 °C | 86 mm | +4 mm |
| Jul | 30.2 °C | +0.4 °C | 167 mm | +73 mm |
| Aug | 30.1 °C | 0.0 °C | 64 mm | -16 mm |
| Sep | 31.1 °C | +0.3 °C | 66 mm | -6 mm |
| Oct | 29.5 °C | +0.1 °C | 165 mm | +21 mm |
| Nov | 28.1 °C | +0.6 °C | 144 mm | -1 mm |
| Dec | 27.6 °C | +0.4 °C | 34 mm | -27 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 Periyakulam?
Periyakulam has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.0 °C and it receives 828 mm of precipitation per year.
What is the hottest day ever recorded in Periyakulam?
The hottest day measured in Periyakulam between 1940 and 2025 was 12 May 1988, reaching 39.4 °C.
What is the coldest day in Periyakulam?
The coldest day measured in Periyakulam between 1940 and 2025 was 26 December 1941, at 10.0 °C.
Does it snow in Periyakulam?
Almost never: Periyakulam sees virtually no snow, with about 0 frost days per year.
Has the climate of Periyakulam warmed?
Yes: Periyakulam warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Periyakulam?
The wettest day measured in Periyakulam between 1940 and 2025 was 28 October 1959, with 224 mm of rain in 24 hours.
What was the windiest day in Periyakulam?
The windiest day measured in Periyakulam between 1940 and 2025 was 19 May 1943, with winds reaching 21.9 km/h.
What is the warmest month in Periyakulam?
The warmest month in Periyakulam is April (27.7 °C on average); the coldest is December (22.6 °C).
How much does it rain in Periyakulam?
Periyakulam receives on average 828 mm of precipitation per year, spread over about 143 rainy days.
Is it sunny in Periyakulam?
Periyakulam gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
Are there tropical nights in Periyakulam?
Yes: Periyakulam has on average 240 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Periyakulam?
In Periyakulam, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 2 June 2014, and the lowest was 8.7 °C on 26 December 1941.
Compare Periyakulam with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Periyakulam