Mannarai climate — normals and trends
Mannarai (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.6 °C and it receives 867 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 (29.9 °C on average) and the coldest is December (24.2 °C). Rainfall peaks in October.
Mannarai averages 0 frost days, 259 hot days (≥ 30 °C) and 118 rainy days per year.
Mannarai has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.0 °C (on 13 May 1985) and the coldest 13.8 °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
MannaraiTamil Nadu
- coords
- 11.12°, 77.37°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.6°C
Average daily high
31.9°C
Average daily low
22.7°C
Annual rainfall
867mm
Sunshine / day
10.2h
Mean relative humidity
69%
Average peak wind
17.5km/h
Seasonal range
5.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
259 d/yr
Rainy days (≥ 1 mm)
118 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.3 °C
Average feels-like low
25.2 °C
Average peak gust
38.5 km/h
Tropical nights (≥ 20 °C)
328 d/yr
Solar radiation
19.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.71 · 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
41.0 °C
13 May 1985
Coldest day
13.8 °C
26 December 1941
Wettest day
138 mm
20 November 1976
Windiest day
38.8 km/h
21 June 1953
Strongest gust
83.5 km/h
20 June 1992
Hottest feels-like
45.9 °C
2 May 2024
Coldest feels-like
14.2 °C
27 December 1941
Sunniest day
12.2 h
22 May 1947
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 | 30.0 °C | -0.4 °C | 15 mm | -0 mm |
| Feb | 33.7 °C | +0.4 °C | 1 mm | -12 mm |
| Mar | 35.5 °C | -0.5 °C | 37 mm | +9 mm |
| Apr | 36.1 °C | -0.4 °C | 71 mm | +9 mm |
| May | 33.6 °C | -1.1 °C | 103 mm | +34 mm |
| Jun | 31.2 °C | +0.1 °C | 52 mm | -14 mm |
| Jul | 30.2 °C | +0.2 °C | 132 mm | +44 mm |
| Aug | 30.2 °C | -0.2 °C | 90 mm | +26 mm |
| Sep | 31.4 °C | -0.2 °C | 17 mm | -53 mm |
| Oct | 31.4 °C | +0.4 °C | 211 mm | +34 mm |
| Nov | 30.0 °C | +0.7 °C | 86 mm | -71 mm |
| Dec | 30.3 °C | +1.3 °C | 22 mm | -37 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 Mannarai?
Mannarai has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 867 mm of precipitation per year.
What is the hottest day ever recorded in Mannarai?
The hottest day measured in Mannarai between 1940 and 2025 was 13 May 1985, reaching 41.0 °C.
What is the coldest day in Mannarai?
The coldest day measured in Mannarai between 1940 and 2025 was 26 December 1941, at 13.8 °C.
Does it snow in Mannarai?
Almost never: Mannarai sees virtually no snow, with about 0 frost days per year.
Has the climate of Mannarai warmed?
Yes: Mannarai warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mannarai?
The wettest day measured in Mannarai between 1940 and 2025 was 20 November 1976, with 138 mm of rain in 24 hours.
What was the windiest day in Mannarai?
The windiest day measured in Mannarai between 1940 and 2025 was 21 June 1953, with winds reaching 38.8 km/h.
What is the warmest month in Mannarai?
The warmest month in Mannarai is April (29.9 °C on average); the coldest is December (24.2 °C).
How much does it rain in Mannarai?
Mannarai receives on average 867 mm of precipitation per year, spread over about 118 rainy days.
Is it sunny in Mannarai?
Mannarai gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Mannarai?
Yes: Mannarai has on average 328 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mannarai?
In Mannarai, between 1940 and 2025, the highest apparent temperature reached 45.9 °C on 2 May 2024, and the lowest was 14.2 °C on 27 December 1941.
Compare Mannarai with another city
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Nearby cities
The climate around Mannarai