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Ranchi, India climate
Csa Hot-summer Mediterranean
Ranchi has a mildly seasonal tropical climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is May with an average daily high near 37°C, while the coldest is January averaging around 9°C at night. Precipitation totals about 1488 mm a year and is strongly seasonal — June alone averages 359 mm while March barely receives 0 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsRanchi climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 27 | 32 | 36 | 37 | 34 | 30 | 30 | 30 | 29 | 27 | 24 |
| Avg temp (°C) | 17 | 20 | 24 | 28 | 30 | 29 | 26 | 26 | 26 | 24 | 20 | 17 |
| Avg low (°C) | 9 | 12 | 17 | 21 | 23 | 24 | 23 | 23 | 22 | 19 | 14 | 10 |
| Precipitation (mm) | 14 | 25 | 0 | 23 | 13 | 359 | 318 | 314 | 298 | 76 | 45 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 27 | 32 | 36 | 37 | 34 |
| Avg temp (°C) | 17 | 20 | 24 | 28 | 30 | 29 |
| Avg low (°C) | 9 | 12 | 17 | 21 | 23 | 24 |
| Precipitation (mm) | 14 | 25 | 0 | 23 | 13 | 359 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 30 | 29 | 27 | 24 |
| Avg temp (°C) | 26 | 26 | 26 | 24 | 20 | 17 |
| Avg low (°C) | 23 | 23 | 22 | 19 | 14 | 10 |
| Precipitation (mm) | 318 | 314 | 298 | 76 | 45 | 3 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 2 | 3 | 3 | 4 | 10 | 17 | 17 | 12 | 5 | 1 | 0.9 |
| Days with high ≥ 32°C (days) | — | 1 | 14 | 23 | 25 | 17 | 5 | 3 | 4 | 3 | 0.0 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 2 | 3 | 3 | 4 | 10 |
| Days with high ≥ 32°C (days) | — | 1 | 14 | 23 | 25 | 17 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 17 | 17 | 12 | 5 | 1 | 0.9 |
| Days with high ≥ 32°C (days) | 5 | 3 | 4 | 3 | 0.0 | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 22 | 25 | 29 | 35 | 51 | 78 | 89 | 88 | 74 | 41 | 22 | 18 |
| Clear days (≤ 30% cloud) | 23 | 19 | 19 | 15 | 7 | 1 | 0.1 | 0.0 | 3 | 15 | 22 | 25 |
| Partly cloudy days (30–70%) | 5 | 6 | 8 | 11 | 16 | 8 | 3 | 4 | 7 | 8 | 5 | 4 |
| Cloudy days (≥ 70%) | 3 | 3 | 4 | 4 | 8 | 21 | 28 | 27 | 20 | 8 | 3 | 2 |
| Relative humidity (%) | 55 | 46 | 35 | 31 | 41 | 64 | 84 | 89 | 88 | 80 | 70 | 62 |
| Wind speed (mph) | 3.7 | 4.0 | 4.6 | 4.5 | 4.9 | 5.7 | 5.6 | 4.9 | 4.3 | 3.1 | 2.8 | 3.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 22 | 25 | 29 | 35 | 51 | 78 |
| Clear days (≤ 30% cloud) | 23 | 19 | 19 | 15 | 7 | 1 |
| Partly cloudy days (30–70%) | 5 | 6 | 8 | 11 | 16 | 8 |
| Cloudy days (≥ 70%) | 3 | 3 | 4 | 4 | 8 | 21 |
| Relative humidity (%) | 55 | 46 | 35 | 31 | 41 | 64 |
| Wind speed (mph) | 3.7 | 4.0 | 4.6 | 4.5 | 4.9 | 5.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 89 | 88 | 74 | 41 | 22 | 18 |
| Clear days (≤ 30% cloud) | 0.1 | 0.0 | 3 | 15 | 22 | 25 |
| Partly cloudy days (30–70%) | 3 | 4 | 7 | 8 | 5 | 4 |
| Cloudy days (≥ 70%) | 28 | 27 | 20 | 8 | 3 | 2 |
| Relative humidity (%) | 84 | 89 | 88 | 80 | 70 | 62 |
| Wind speed (mph) | 5.6 | 4.9 | 4.3 | 3.1 | 2.8 | 3.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at M.o. Ranchi, a weather station, about 3 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.