January is one of the cooler months of the year in Kolkata, with average highs near 25.8°C and lows around 11.1°C (mean 18.5°C). It is one of the drier months, averaging 12 mm of rainfall and 61% relative humidity across the period.
January is one of the cooler months of the year in Kolkata. Across 45 years of records, the warmest January in Kolkata was 1985 — when the month averaged 20.9°C — while the coldest was 2018 at 15.7°C. Typical January days reach 25.8°C with nights near 11.1°C. The long-term trend is cooling, about 0.5°C per decade.
January is one of the drier months in Kolkata, averaging 12 mm of rainfall. The wettest January on record was 2008 with 58 mm, while the driest were 2019, 2023 and 2025, among others at 0 mm.
Relative humidity in Kolkata during January averages 61%. The most humid January was 2022 at 79%, and the least humid was 1989 at 42%.
January receives about 3.9 kWh/m²/day of solar energy in Kolkata. The sunniest January was 1999 at 4.6 kWh/m²/day, and the cloudiest was 2024 at 3.1.
Average wind speed in Kolkata during January is 1.7 m/s. The windiest Januarys were 1995 and 2013 at 2 m/s, while the calmest was 2016 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.6°C | 18.9°C | 17.9°C | 17.8°C | 18.0°C | -1.6°C |
| Avg High | 27.4°C | 26.6°C | 25.0°C | 25.1°C | 24.4°C | -3°C |
| Avg Low | 11.8°C | 11.2°C | 10.7°C | 10.5°C | 11.5°C | -0.3°C |
| Avg Rain | 9 mm | 13 mm | 11 mm | 11 mm | 15 mm | +5 mm |
January temperatures in Kolkata have fallen by about 2.1°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 3.4°C (2013) to a record high of 33.4°C (1990).
Rainfall in January is one of the drier months, averaging 12 mm, with a wettest year of 58 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.8°C per decade while lows fell 0.2°C per decade, narrowing the gap between day and night.
One of the best times to visit Kolkata
January is one of the best times to visit Kolkata. Expect days averaging 25.8°C and nights around 11.1°C (mean 18.5°C) — cooler than Kolkata's yearly average — with low rainfall (12 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 24.7°C | 18.2°C | 11.6°C | 28.9°C | 8.3°C | 0 mm | 74% | 1.7 m/s | 3.5 |
| 2024 | 23.6°C | 17.1°C | 10.6°C | 26.6°C | 7.3°C | 16 mm | 72% | 1.7 m/s | 3.1 |
| 2023 | 26.8°C | 19.4°C | 12.0°C | 30.6°C | 7.3°C | 0 mm | 64% | 1.7 m/s | 3.2 |
| 2022 | 22.9°C | 17.3°C | 11.7°C | 25.7°C | 7.4°C | 28 mm | 79% | 1.6 m/s | 3.5 |
| 2021 | 25.9°C | 19.0°C | 12.1°C | 29.6°C | 8.1°C | 0 mm | 66% | 1.5 m/s | 3.4 |
| 2020 | 22.7°C | 16.9°C | 11.0°C | 26.7°C | 6.4°C | 45 mm | 75% | 1.5 m/s | 3.5 |
| 2019 | 26.4°C | 18.4°C | 10.5°C | 30.3°C | 7.6°C | 0 mm | 56% | 1.7 m/s | 3.9 |
| 2018 ❄️ | 23.0°C | 15.7°C | 8.5°C | 25.9°C | 5.5°C | 0 mm | 65% | 1.5 m/s | 3.9 |
| 2017 | 25.9°C | 18.5°C | 11.0°C | 28.2°C | 5.3°C | 3 mm | 66% | 1.8 m/s | 4 |
| 2016 | 26.8°C | 19.7°C | 12.7°C | 31.0°C | 7.6°C | 6 mm | 58% | 1.4 m/s | 3.3 |
| 2015 | 25.4°C | 18.2°C | 11.0°C | 28.8°C | 6.6°C | 41 mm | 66% | 1.9 m/s | 3.7 |
| 2014 | 24.2°C | 17.3°C | 10.3°C | 26.4°C | 6.7°C | 0 mm | 72% | 1.8 m/s | 3.8 |
| 2013 | 24.4°C | 16.6°C | 8.7°C | 29.0°C | 3.4°C | 3 mm | 61% | 2 m/s | 3.7 |
| 2012 | 25.1°C | 18.8°C | 12.5°C | 28.5°C | 6.2°C | 54 mm | 71% | 1.6 m/s | 3.3 |
| 2011 | 24.6°C | 17.4°C | 10.2°C | 28.9°C | 5.7°C | 1 mm | 62% | 1.6 m/s | 3.8 |
| 2010 | 24.7°C | 17.0°C | 9.4°C | 26.9°C | 7.1°C | 0 mm | 63% | 1.9 m/s | 4 |
| 2009 | 26.5°C | 19.5°C | 12.5°C | 30.6°C | 8.8°C | 1 mm | 69% | 1.5 m/s | 3.6 |
| 2008 🌧️ | 24.0°C | 17.4°C | 10.8°C | 27.6°C | 6.2°C | 58 mm | 72% | 1.7 m/s | 3.8 |
| 2007 | 25.3°C | 17.6°C | 9.9°C | 30.3°C | 6.8°C | 2 mm | 61% | 1.6 m/s | 3.8 |
| 2006 | 25.0°C | 17.6°C | 10.2°C | 28.2°C | 6.9°C | 0 mm | 63% | 1.5 m/s | 4.2 |
| 2005 | 24.9°C | 18.5°C | 12.1°C | 27.6°C | 8.5°C | 28 mm | 69% | 1.6 m/s | 3.6 |
| 2004 | 24.2°C | 17.4°C | 10.6°C | 27.7°C | 6.3°C | 1 mm | 71% | 1.6 m/s | 3.8 |
| 2003 | 24.2°C | 16.6°C | 9.1°C | 28.9°C | 4.9°C | 0 mm | 61% | 1.7 m/s | 4 |
| 2002 | 25.2°C | 18.8°C | 12.4°C | 28.7°C | 6.7°C | 19 mm | 71% | 1.6 m/s | 3.9 |
| 2001 | 25.0°C | 17.1°C | 9.1°C | 29.9°C | 5.9°C | 0 mm | 54% | 1.6 m/s | 4.2 |
| 2000 | 25.8°C | 18.1°C | 10.4°C | 28.8°C | 6.3°C | 3 mm | 62% | 1.7 m/s | 4.4 |
| 1999 | 24.8°C | 17.1°C | 9.4°C | 28.3°C | 6.5°C | 0 mm | 64% | 1.8 m/s | 4.6 |
| 1998 | 24.9°C | 18.2°C | 11.4°C | 29.1°C | 6.3°C | 38 mm | 65% | 1.8 m/s | 3.5 |
| 1997 | 26.6°C | 18.7°C | 10.9°C | 29.2°C | 8.0°C | 23 mm | 49% | 1.7 m/s | 3.9 |
| 1996 | 25.7°C | 18.8°C | 12.0°C | 27.9°C | 6.8°C | 16 mm | 68% | 1.7 m/s | 4 |
| 1995 | 27.2°C | 19.0°C | 10.8°C | 29.7°C | 7.6°C | 12 mm | 45% | 2 m/s | 3.9 |
| 1994 | 27.5°C | 19.5°C | 11.4°C | 30.4°C | 6.9°C | 11 mm | 57% | 1.9 m/s | 4.2 |
| 1993 | 28.3°C | 20.2°C | 12.1°C | 30.7°C | 6.8°C | 18 mm | 48% | 1.8 m/s | 4.3 |
| 1992 | 25.5°C | 18.2°C | 10.9°C | 29.6°C | 5.4°C | 9 mm | 62% | 1.6 m/s | 4 |
| 1991 | 26.3°C | 18.8°C | 11.3°C | 30.9°C | 6.5°C | 5 mm | 58% | 1.8 m/s | 4 |
| 1990 | 28.7°C | 20.1°C | 11.4°C | 33.4°C | 7.0°C | 0 mm | 46% | 1.9 m/s | 4.4 |
| 1989 | 26.5°C | 17.8°C | 9.1°C | 28.9°C | 5.2°C | 0 mm | 42% | 1.8 m/s | 4.3 |
| 1988 | 28.9°C | 20.3°C | 11.6°C | 31.5°C | 8.6°C | 0 mm | 43% | 1.9 m/s | 4.3 |
| 1987 | 25.4°C | 17.8°C | 10.2°C | 28.2°C | 6.0°C | 3 mm | 59% | 1.7 m/s | 4.5 |
| 1986 | 27.5°C | 19.3°C | 11.1°C | 32.3°C | 6.1°C | 9 mm | 49% | 1.9 m/s | 4.4 |
| 1985 🔥 | 28.4°C | 20.9°C | 13.4°C | 32.5°C | 9.1°C | 14 mm | 53% | 1.6 m/s | 4.1 |
| 1984 | 27.8°C | 20.3°C | 12.8°C | 31.0°C | 7.4°C | 23 mm | 49% | 1.8 m/s | 4 |
| 1983 | 28.5°C | 20.7°C | 12.9°C | 31.4°C | 8.2°C | 0 mm | 43% | 1.6 m/s | — |
| 1982 | 27.2°C | 20.0°C | 12.8°C | 30.6°C | 8.2°C | 12 mm | 61% | 1.5 m/s | — |
| 1981 | 26.6°C | 19.4°C | 12.2°C | 30.3°C | 8.0°C | 24 mm | 64% | 1.9 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 25.8°C with lows near 11.1°C (mean 18.5°C), based on 45 years of NASA POWER data.
January averages 12 mm of rainfall in Kolkata, one of the drier months. The wettest on record was 58 mm in 2008.
The hottest January reached 33.4°C in 1990. The coldest dipped to 3.4°C in 2013.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have fallen by about 2.1°C. Daytime highs moved from 27.7°C to 24.8°C and overnight lows from 12.8°C to 11.6°C over the same span.
January is one of the cooler months of the year in Kolkata and one of the drier months, so plan for around 25.8°C daytime highs and 11.1°C at night.
Yes — January is the coldest month of the year in Kolkata, averaging 18.5°C.
For January in Kolkata, pack light layers you can adjust through the day, with typical highs of 25.8°C and lows of 11.1°C.
Relative humidity in January averages 61% — moderately humid.
Average wind speed in January is 1.7 m/s. The windiest January on record averaged 2 m/s (1995).
The wettest January on record was 2008 with 58 mm. On average, January sees 12 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 Kolkata 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.
