Natham climate — normals and trends
Natham (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.9 °C and it receives 1,219 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 (30.0 °C on average) and the coldest is January (23.7 °C). Rainfall peaks in October.
Natham averages 0 frost days, 261 hot days (≥ 30 °C) and 166 rainy days per year.
Natham has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.2 °C (on 11 May 1993) and the coldest 13.7 °C (on 27 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
NathamTamil Nadu
- coords
- 10.23°, 78.23°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.9°C
Average daily high
32.1°C
Average daily low
22.8°C
Annual rainfall
1,219mm
Sunshine / day
10.2h
Mean relative humidity
71%
Average peak wind
11.6km/h
Seasonal range
6.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
261 d/yr
Rainy days (≥ 1 mm)
166 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.7 °C
Average feels-like low
26.4 °C
Average peak gust
30.0 km/h
Tropical nights (≥ 20 °C)
318 d/yr
Solar radiation
19.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.56 · 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
42.2 °C
11 May 1993
Coldest day
13.7 °C
27 December 1941
Wettest day
179 mm
22 December 1983
Windiest day
30.5 km/h
13 November 1992
Strongest gust
68.0 km/h
7 August 1950
Hottest feels-like
46.3 °C
6 May 2024
Coldest feels-like
13.5 °C
27 December 1941
Sunniest day
12.4 h
24 May 1945
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 | 28.4 °C | -0.4 °C | 37 mm | +13 mm |
| Feb | 31.3 °C | -0.4 °C | 9 mm | -9 mm |
| Mar | 32.7 °C | -2.0 °C | 98 mm | +71 mm |
| Apr | 34.6 °C | -1.7 °C | 62 mm | +8 mm |
| May | 34.2 °C | -2.0 °C | 115 mm | +16 mm |
| Jun | 33.4 °C | -0.2 °C | 99 mm | -12 mm |
| Jul | 33.0 °C | +0.5 °C | 88 mm | -29 mm |
| Aug | 32.1 °C | -0.2 °C | 139 mm | +11 mm |
| Sep | 32.4 °C | +0.1 °C | 159 mm | +3 mm |
| Oct | 31.0 °C | +0.2 °C | 231 mm | +7 mm |
| Nov | 29.0 °C | +0.3 °C | 235 mm | +58 mm |
| Dec | 28.1 °C | +0.3 °C | 30 mm | -55 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 Natham?
Natham has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.9 °C and it receives 1,219 mm of precipitation per year.
What is the hottest day ever recorded in Natham?
The hottest day measured in Natham between 1940 and 2025 was 11 May 1993, reaching 42.2 °C.
What is the coldest day in Natham?
The coldest day measured in Natham between 1940 and 2025 was 27 December 1941, at 13.7 °C.
Does it snow in Natham?
Almost never: Natham sees virtually no snow, with about 0 frost days per year.
Has the climate of Natham warmed?
Yes: Natham warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Natham?
The wettest day measured in Natham between 1940 and 2025 was 22 December 1983, with 179 mm of rain in 24 hours.
What was the windiest day in Natham?
The windiest day measured in Natham between 1940 and 2025 was 13 November 1992, with winds reaching 30.5 km/h.
What is the warmest month in Natham?
The warmest month in Natham is May (30.0 °C on average); the coldest is January (23.7 °C).
How much does it rain in Natham?
Natham receives on average 1,219 mm of precipitation per year, spread over about 166 rainy days.
Is it sunny in Natham?
Natham gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Natham?
Yes: Natham has on average 318 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Natham?
In Natham, between 1940 and 2025, the highest apparent temperature reached 46.3 °C on 6 May 2024, and the lowest was 13.5 °C on 27 December 1941.
Compare Natham with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Natham