Nilambūr climate — normals and trends
Nilambūr (India) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 24.1 °C and it receives 3,424 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 March (25.9 °C on average) and the coldest is July (23.0 °C). Rainfall peaks in June.
Nilambūr averages 0 frost days, 93 hot days (≥ 30 °C) and 252 rainy days per year.
Nilambūr has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.4 °C (on 1 March 1951) and the coldest 11.8 °C (on 1 January 1951).
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
NilambūrKerala
- coords
- 11.27°, 76.23°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.1°C
Average daily high
28.4°C
Average daily low
20.5°C
Annual rainfall
3,424mm
Sunshine / day
9.6h
Mean relative humidity
82%
Average peak wind
7.5km/h
Seasonal range
2.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
93 d/yr
Rainy days (≥ 1 mm)
252 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.1 °C
Average feels-like low
23.5 °C
Average peak gust
28.7 km/h
Tropical nights (≥ 20 °C)
257 d/yr
Solar radiation
17.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.81 · 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
37.4 °C
1 March 1951
Coldest day
11.8 °C
1 January 1951
Wettest day
246 mm
24 May 1957
Windiest day
20.0 km/h
19 May 1955
Strongest gust
78.1 km/h
23 July 1989
Hottest feels-like
41.2 °C
27 April 2016
Coldest feels-like
10.4 °C
1 January 1951
Sunniest day
12.1 h
21 May 1947
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 | 30.5 °C | +0.8 °C | 23 mm | -6 mm |
| Feb | 31.9 °C | +0.8 °C | 16 mm | -11 mm |
| Mar | 31.2 °C | -0.6 °C | 130 mm | +52 mm |
| Apr | 29.6 °C | -0.8 °C | 234 mm | +26 mm |
| May | 28.1 °C | -0.6 °C | 849 mm | +475 mm |
| Jun | 27.3 °C | +1.1 °C | 652 mm | -6 mm |
| Jul | 26.3 °C | +0.5 °C | 706 mm | +63 mm |
| Aug | 26.7 °C | +0.6 °C | 524 mm | +85 mm |
| Sep | 27.8 °C | +0.9 °C | 114 mm | -165 mm |
| Oct | 28.2 °C | +0.8 °C | 465 mm | +86 mm |
| Nov | 28.1 °C | +0.3 °C | 122 mm | -117 mm |
| Dec | 28.8 °C | +0.3 °C | 57 mm | -16 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 Nilambūr?
Nilambūr has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 24.1 °C and it receives 3,424 mm of precipitation per year.
What is the hottest day ever recorded in Nilambūr?
The hottest day measured in Nilambūr between 1940 and 2025 was 1 March 1951, reaching 37.4 °C.
What is the coldest day in Nilambūr?
The coldest day measured in Nilambūr between 1940 and 2025 was 1 January 1951, at 11.8 °C.
Does it snow in Nilambūr?
Almost never: Nilambūr sees virtually no snow, with about 0 frost days per year.
Has the climate of Nilambūr warmed?
Yes: Nilambūr warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nilambūr?
The wettest day measured in Nilambūr between 1940 and 2025 was 24 May 1957, with 246 mm of rain in 24 hours.
What was the windiest day in Nilambūr?
The windiest day measured in Nilambūr between 1940 and 2025 was 19 May 1955, with winds reaching 20.0 km/h.
What is the warmest month in Nilambūr?
The warmest month in Nilambūr is March (25.9 °C on average); the coldest is July (23.0 °C).
How much does it rain in Nilambūr?
Nilambūr receives on average 3,424 mm of precipitation per year, spread over about 252 rainy days.
Is it sunny in Nilambūr?
Nilambūr gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Nilambūr?
Yes: Nilambūr has on average 257 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nilambūr?
In Nilambūr, between 1940 and 2025, the highest apparent temperature reached 41.2 °C on 27 April 2016, and the lowest was 10.4 °C on 1 January 1951.
Compare Nilambūr with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nilambūr