Ramanathapuram climate — normals and trends
Ramanathapuram (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.9 °C and it receives 801 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 (30.1 °C on average) and the coldest is January (25.4 °C). Rainfall peaks in November.
Ramanathapuram averages 0 frost days, 212 hot days (≥ 30 °C) and 122 rainy days per year.
Ramanathapuram has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.6 °C (on 8 June 1987) and the coldest 20.1 °C (on 13 December 1945).
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
RamanathapuramTamil Nadu
- coords
- 9.37°, 78.83°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.9°C
Average daily high
30.3°C
Average daily low
25.8°C
Annual rainfall
801mm
Sunshine / day
10.6h
Mean relative humidity
75%
Average peak wind
23.5km/h
Seasonal range
4.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
212 d/yr
Rainy days (≥ 1 mm)
122 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.2 °C
Average feels-like low
28.9 °C
Average peak gust
38.0 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
20.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.79 · 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
36.6 °C
8 June 1987
Coldest day
20.1 °C
13 December 1945
Wettest day
186 mm
21 October 2008
Windiest day
54.6 km/h
13 November 1992
Strongest gust
88.6 km/h
13 November 1992
Hottest feels-like
42.2 °C
24 May 2020
Coldest feels-like
19.4 °C
26 December 2000
Sunniest day
12.3 h
1 June 1958
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 | 28.1 °C | +0.5 °C | 70 mm | +26 mm |
| Feb | 29.3 °C | +0.7 °C | 23 mm | -2 mm |
| Mar | 30.6 °C | +0.3 °C | 92 mm | +58 mm |
| Apr | 32.4 °C | +0.6 °C | 54 mm | +2 mm |
| May | 33.3 °C | +0.7 °C | 22 mm | -19 mm |
| Jun | 33.2 °C | +0.8 °C | 13 mm | -9 mm |
| Jul | 32.9 °C | +1.1 °C | 29 mm | +6 mm |
| Aug | 31.8 °C | +0.4 °C | 33 mm | +8 mm |
| Sep | 32.0 °C | +0.9 °C | 21 mm | -16 mm |
| Oct | 30.2 °C | +0.3 °C | 384 mm | +230 mm |
| Nov | 28.7 °C | +0.3 °C | 430 mm | +214 mm |
| Dec | 27.9 °C | +0.2 °C | 39 mm | -90 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 Ramanathapuram?
Ramanathapuram has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.9 °C and it receives 801 mm of precipitation per year.
What is the hottest day ever recorded in Ramanathapuram?
The hottest day measured in Ramanathapuram between 1940 and 2025 was 8 June 1987, reaching 36.6 °C.
What is the coldest day in Ramanathapuram?
The coldest day measured in Ramanathapuram between 1940 and 2025 was 13 December 1945, at 20.1 °C.
Does it snow in Ramanathapuram?
Almost never: Ramanathapuram sees virtually no snow, with about 0 frost days per year.
Has the climate of Ramanathapuram warmed?
Yes: Ramanathapuram warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ramanathapuram?
The wettest day measured in Ramanathapuram between 1940 and 2025 was 21 October 2008, with 186 mm of rain in 24 hours.
What was the windiest day in Ramanathapuram?
The windiest day measured in Ramanathapuram between 1940 and 2025 was 13 November 1992, with winds reaching 54.6 km/h.
What is the warmest month in Ramanathapuram?
The warmest month in Ramanathapuram is May (30.1 °C on average); the coldest is January (25.4 °C).
How much does it rain in Ramanathapuram?
Ramanathapuram receives on average 801 mm of precipitation per year, spread over about 122 rainy days.
Is it sunny in Ramanathapuram?
Ramanathapuram gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in Ramanathapuram?
Yes: Ramanathapuram has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ramanathapuram?
In Ramanathapuram, between 1940 and 2025, the highest apparent temperature reached 42.2 °C on 24 May 2020, and the lowest was 19.4 °C on 26 December 2000.
Compare Ramanathapuram with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ramanathapuram