January is one of the cooler months of the year in Ranchi, with average highs near 24.5°C and lows around 9.6°C (mean 17.1°C). It is one of the drier months, averaging 14 mm of rainfall and 55% relative humidity across the period.
January is one of the cooler months of the year in Ranchi. Across 45 years of records, the warmest January in Ranchi was 1990 — when the month averaged 19.4°C — while the coldest was 2020 at 14.8°C. Typical January days reach 24.5°C with nights near 9.6°C. The long-term trend is cooling, about 0.3°C per decade.
January is one of the drier months in Ranchi, averaging 14 mm of rainfall. The wettest January on record was 1998 with 66 mm, while the driest were 2018, 2023 and 2025, among others at 0 mm.
Relative humidity in Ranchi during January averages 55%. The most humid January was 2022 at 76%, and the least humid was 1993 at 32%.
January receives about 3.9 kWh/m²/day of solar energy in Ranchi. The sunniest Januarys were 1990 and 1999 at 4.6 kWh/m²/day, and the cloudiest was 2012 at 3.2.
Average wind speed in Ranchi during January is 1.6 m/s. The windiest Januarys were 1990 and 1993 at 2.3 m/s, while the calmest were 2005, 2019 and 2021, among others at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.7°C | 17.3°C | 17.2°C | 16.6°C | 16.3°C | -1.4°C |
| Avg High | 25.2°C | 24.7°C | 24.9°C | 24.1°C | 23.1°C | -2.1°C |
| Avg Low | 10.2°C | 9.8°C | 9.6°C | 9.2°C | 9.4°C | -0.8°C |
| Avg Rain | 21 mm | 15 mm | 12 mm | 13 mm | 11 mm | -9 mm |
January temperatures in Ranchi have fallen by about 1.4°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 2.3°C (2013) to a record high of 33.4°C (1990).
Rainfall in January is one of the drier months, averaging 14 mm, with a wettest year of 66 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.4°C per decade while lows fell 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Ranchi
January is a good time to visit Ranchi, with days averaging 24.5°C and nights around 9.6°C (mean 17.1°C, cooler than Ranchi's yearly average) and low rainfall. February and November are marginally more temperate, but January still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 24.0°C | 16.8°C | 9.6°C | 29.2°C | 5.1°C | 0 mm | 62% | 1.6 m/s | 3.8 |
| 2024 | 22.9°C | 15.9°C | 8.9°C | 25.6°C | 5.0°C | 3 mm | 65% | 1.5 m/s | 3.3 |
| 2023 | 24.9°C | 17.4°C | 9.9°C | 28.9°C | 4.3°C | 0 mm | 60% | 1.5 m/s | 3.5 |
| 2022 | 21.0°C | 14.9°C | 8.8°C | 24.3°C | 3.7°C | 29 mm | 76% | 1.5 m/s | 3.3 |
| 2021 | 24.8°C | 17.7°C | 10.5°C | 28.1°C | 5.3°C | 1 mm | 60% | 1.4 m/s | 3.5 |
| 2020 ❄️ | 21.1°C | 14.8°C | 8.4°C | 24.5°C | 2.8°C | 35 mm | 75% | 1.7 m/s | 3.5 |
| 2019 | 24.3°C | 16.9°C | 9.4°C | 28.4°C | 4.8°C | 2 mm | 52% | 1.4 m/s | 3.8 |
| 2018 | 23.5°C | 15.5°C | 7.5°C | 27.5°C | 4.1°C | 0 mm | 51% | 1.8 m/s | 4.2 |
| 2017 | 25.0°C | 17.7°C | 10.4°C | 29.5°C | 4.8°C | 2 mm | 60% | 1.7 m/s | 3.9 |
| 2016 | 26.1°C | 18.7°C | 11.4°C | 30.4°C | 4.9°C | 13 mm | 45% | 1.5 m/s | 3.5 |
| 2015 | 24.1°C | 16.8°C | 9.5°C | 27.0°C | 4.6°C | 28 mm | 61% | 1.8 m/s | 3.7 |
| 2014 | 22.7°C | 16.1°C | 9.5°C | 24.5°C | 5.4°C | 19 mm | 71% | 1.7 m/s | 3.7 |
| 2013 | 23.1°C | 15.2°C | 7.4°C | 26.8°C | 2.3°C | 0 mm | 59% | 1.8 m/s | 3.8 |
| 2012 | 22.8°C | 16.5°C | 10.1°C | 26.1°C | 3.5°C | 54 mm | 70% | 1.6 m/s | 3.2 |
| 2011 | 24.4°C | 16.3°C | 8.1°C | 28.8°C | 3.8°C | 11 mm | 51% | 1.8 m/s | 3.9 |
| 2010 | 24.6°C | 16.6°C | 8.7°C | 27.2°C | 5.3°C | 0 mm | 52% | 1.5 m/s | 4.1 |
| 2009 | 26.1°C | 18.7°C | 11.2°C | 31.7°C | 8.1°C | 7 mm | 61% | 1.5 m/s | 3.7 |
| 2008 | 23.6°C | 16.5°C | 9.5°C | 28.2°C | 5.4°C | 29 mm | 62% | 1.7 m/s | 3.6 |
| 2007 | 24.9°C | 17.3°C | 9.6°C | 29.2°C | 5.5°C | 0 mm | 51% | 1.6 m/s | 3.9 |
| 2006 | 27.2°C | 18.5°C | 9.9°C | 30.8°C | 6.5°C | 0 mm | 39% | 1.8 m/s | 4.3 |
| 2005 | 24.0°C | 17.1°C | 10.2°C | 27.0°C | 7.0°C | 23 mm | 61% | 1.4 m/s | 3.4 |
| 2004 | 22.2°C | 15.5°C | 8.8°C | 26.0°C | 5.3°C | 12 mm | 68% | 1.4 m/s | 4 |
| 2003 | 24.1°C | 16.2°C | 8.3°C | 28.9°C | 3.9°C | 3 mm | 51% | 1.6 m/s | 4.1 |
| 2002 | 25.5°C | 18.0°C | 10.5°C | 29.5°C | 6.3°C | 30 mm | 56% | 1.4 m/s | 3.9 |
| 2001 | 26.1°C | 17.3°C | 8.6°C | 31.7°C | 5.2°C | 3 mm | 37% | 2 m/s | 4.1 |
| 2000 | 24.9°C | 17.2°C | 9.6°C | 28.4°C | 5.4°C | 11 mm | 50% | 1.7 m/s | 4.4 |
| 1999 | 23.5°C | 16.0°C | 8.4°C | 28.4°C | 5.1°C | 0 mm | 57% | 1.6 m/s | 4.6 |
| 1998 🌧️ | 22.4°C | 15.9°C | 9.5°C | 25.8°C | 3.5°C | 66 mm | 70% | 1.6 m/s | 3.6 |
| 1997 | 25.0°C | 17.3°C | 9.6°C | 28.8°C | 4.7°C | 14 mm | 43% | 1.5 m/s | 3.9 |
| 1996 | 24.0°C | 17.3°C | 10.7°C | 27.7°C | 6.5°C | 16 mm | 63% | 1.7 m/s | 3.7 |
| 1995 | 23.0°C | 16.0°C | 8.9°C | 25.5°C | 5.5°C | 22 mm | 54% | 1.7 m/s | 3.9 |
| 1994 | 25.9°C | 18.6°C | 11.2°C | 29.9°C | 7.1°C | 23 mm | 52% | 1.7 m/s | 4.2 |
| 1993 | 27.4°C | 19.0°C | 10.5°C | 30.3°C | 7.0°C | 1 mm | 32% | 2.3 m/s | 4.3 |
| 1992 | 23.8°C | 16.4°C | 9.1°C | 29.0°C | 3.9°C | 1 mm | 54% | 1.6 m/s | 4.3 |
| 1991 | 23.9°C | 16.7°C | 9.5°C | 28.9°C | 3.4°C | 7 mm | 56% | 1.6 m/s | 4 |
| 1990 🔥 | 28.0°C | 19.4°C | 10.8°C | 33.4°C | 6.8°C | 0 mm | 34% | 2.3 m/s | 4.6 |
| 1989 | 25.6°C | 16.8°C | 8.0°C | 29.6°C | 3.8°C | 2 mm | 37% | 2 m/s | 4.3 |
| 1988 | 25.6°C | 17.8°C | 10.0°C | 28.5°C | 6.3°C | 3 mm | 51% | 1.6 m/s | 4.4 |
| 1987 | 25.0°C | 17.3°C | 9.6°C | 27.9°C | 4.6°C | 11 mm | 49% | 1.6 m/s | 4.2 |
| 1986 | 24.8°C | 17.4°C | 10.0°C | 28.8°C | 3.6°C | 16 mm | 55% | 1.5 m/s | 4.3 |
| 1985 | 25.3°C | 18.2°C | 11.1°C | 29.3°C | 8.1°C | 23 mm | 56% | 1.4 m/s | 4 |
| 1984 | 25.1°C | 18.0°C | 10.9°C | 28.2°C | 7.0°C | 49 mm | 56% | 1.5 m/s | 3.6 |
| 1983 | 26.0°C | 18.0°C | 10.0°C | 30.4°C | 6.4°C | 1 mm | 41% | 1.6 m/s | — |
| 1982 | 25.7°C | 18.8°C | 11.9°C | 27.9°C | 6.9°C | 37 mm | 62% | 1.5 m/s | — |
| 1981 | 23.4°C | 16.7°C | 9.9°C | 27.9°C | 6.0°C | 46 mm | 65% | 1.5 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 24.5°C with lows near 9.6°C (mean 17.1°C), based on 45 years of NASA POWER data.
January averages 14 mm of rainfall in Ranchi, one of the drier months. The wettest on record was 66 mm in 1998.
The hottest January reached 33.4°C in 1990. The coldest dipped to 2.3°C in 2013.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have fallen by about 1.4°C. Daytime highs moved from 25.1°C to 23.5°C and overnight lows from 10.8°C to 9.5°C over the same span.
January is one of the cooler months of the year in Ranchi and one of the drier months, so plan for around 24.5°C daytime highs and 9.6°C at night.
Yes — January is the coldest month of the year in Ranchi, averaging 17.1°C.
For January in Ranchi, pack light layers you can adjust through the day, with typical highs of 24.5°C and lows of 9.6°C.
Relative humidity in January averages 55% — moderately humid.
Average wind speed in January is 1.6 m/s. The windiest January on record averaged 2.3 m/s (1990).
The wettest January on record was 1998 with 66 mm. On average, January sees 14 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Ranchi behaves each January, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for January specifically, along with year-by-year records and how the month has changed over the decades.
