January is one of the cooler months of the year in Nagapattinam, with average highs near 27.3°C and lows around 24.1°C (mean 25.7°C). It is one of the drier months, averaging 29 mm of rainfall and 77% relative humidity across the period.
January is one of the cooler months of the year in Nagapattinam. Across 45 years of records, the warmest Januarys in Nagapattinam were 2013, 2020 and 2024, among others — when the month averaged 26.4°C — while the coldest were 1982 and 1997 at 24.9°C. Typical January days reach 27.3°C with nights near 24.1°C. The long-term January temperature trend is broadly flat.
January is one of the drier months in Nagapattinam, averaging 29 mm of rainfall. The wettest January on record was 2021 with 171 mm, while the driest was 2019 at 3 mm.
Relative humidity in Nagapattinam during January averages 77%. The most humid January was 2021 at 84%, and the least humid was 1996 at 72%.
January receives about 4.8 kWh/m²/day of solar energy in Nagapattinam. The sunniest Januarys were 2008, 2012 and 2020, among others at 5.3 kWh/m²/day, and the cloudiest was 2021 at 4.
Average wind speed in Nagapattinam during January is 4.2 m/s. The windiest January was 2014 at 5 m/s, while the calmest was 2020 at 3.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.5°C | 25.6°C | 25.7°C | 25.7°C | 26.1°C | +0.6°C |
| Avg High | 27.2°C | 27.2°C | 27.4°C | 27.3°C | 27.4°C | +0.2°C |
| Avg Low | 23.8°C | 23.9°C | 24.1°C | 24.1°C | 24.7°C | +0.9°C |
| Avg Rain | 41 mm | 19 mm | 18 mm | 21 mm | 61 mm | +20 mm |
January temperatures in Nagapattinam have risen by about 0.5°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 21.5°C (1997) to a record high of 29.7°C (1983).
Rainfall in January is one of the drier months, averaging 29 mm, with a wettest year of 171 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
One of the best times to visit Nagapattinam
January is one of the best times to visit Nagapattinam. Expect days averaging 27.3°C and nights around 24.1°C (mean 25.7°C) — cooler than Nagapattinam's yearly average — with low rainfall (29 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 | 26.9°C | 25.7°C | 24.5°C | 27.7°C | 23.6°C | 38 mm | 80% | 4.6 m/s | 4.3 |
| 2024 | 27.8°C | 26.4°C | 25.1°C | 28.5°C | 23.7°C | 82 mm | 80% | 4.2 m/s | 4.6 |
| 2023 | 27.2°C | 25.6°C | 24.0°C | 28.1°C | 22.3°C | 22 mm | 76% | 4.4 m/s | 4.9 |
| 2022 | 27.6°C | 26.2°C | 24.9°C | 28.7°C | 23.6°C | 42 mm | 80% | 4 m/s | 4.8 |
| 2021 🌧️ | 27.2°C | 26.0°C | 24.9°C | 28.2°C | 23.6°C | 171 mm | 84% | 4.2 m/s | 4 |
| 2020 | 27.9°C | 26.4°C | 24.8°C | 28.5°C | 23.4°C | 12 mm | 78% | 3.6 m/s | 5.3 |
| 2019 | 27.2°C | 25.4°C | 23.6°C | 28.5°C | 22.7°C | 3 mm | 75% | 4.3 m/s | 5.2 |
| 2018 | 26.7°C | 25.1°C | 23.4°C | 27.5°C | 22.4°C | 18 mm | 78% | 4.1 m/s | 5 |
| 2017 | 27.9°C | 26.0°C | 24.1°C | 28.7°C | 22.6°C | 64 mm | 74% | 4.6 m/s | 4.8 |
| 2016 | 27.3°C | 25.8°C | 24.3°C | 28.0°C | 23.1°C | 6 mm | 77% | 3.8 m/s | 5.1 |
| 2015 | 26.9°C | 25.4°C | 23.9°C | 27.6°C | 23.0°C | 7 mm | 79% | 4 m/s | 5 |
| 2014 | 27.6°C | 26.0°C | 24.3°C | 28.3°C | 23.4°C | 23 mm | 75% | 5 m/s | 4.5 |
| 2013 | 28.2°C | 26.4°C | 24.6°C | 28.8°C | 23.5°C | 12 mm | 75% | 4.5 m/s | 5.1 |
| 2012 | 27.2°C | 25.5°C | 23.8°C | 28.0°C | 22.5°C | 12 mm | 76% | 3.7 m/s | 5.3 |
| 2011 | 26.8°C | 25.5°C | 24.3°C | 27.4°C | 22.8°C | 44 mm | 81% | 4.8 m/s | 4.6 |
| 2010 | 27.0°C | 25.6°C | 24.2°C | 27.8°C | 22.3°C | 23 mm | 81% | 4.2 m/s | 5 |
| 2009 | 27.0°C | 25.5°C | 24.1°C | 27.6°C | 23.1°C | 25 mm | 76% | 4.1 m/s | 5.2 |
| 2008 | 26.8°C | 25.2°C | 23.6°C | 28.6°C | 22.1°C | 30 mm | 80% | 3.8 m/s | 5.3 |
| 2007 | 27.6°C | 25.8°C | 24.1°C | 28.4°C | 22.7°C | 8 mm | 75% | 4.4 m/s | 4.9 |
| 2006 | 26.4°C | 25.0°C | 23.5°C | 27.4°C | 21.8°C | 22 mm | 80% | 4 m/s | 4.9 |
| 2005 | 27.7°C | 26.1°C | 24.4°C | 28.8°C | 22.8°C | 16 mm | 77% | 4 m/s | 5 |
| 2004 | 28.0°C | 26.1°C | 24.2°C | 29.2°C | 22.5°C | 8 mm | 75% | 4.2 m/s | 5.3 |
| 2003 | 27.9°C | 26.0°C | 24.2°C | 28.4°C | 22.9°C | 9 mm | 75% | 4.7 m/s | 4.9 |
| 2002 | 27.8°C | 26.1°C | 24.4°C | 29.3°C | 22.7°C | 32 mm | 78% | 4.1 m/s | 4.7 |
| 2001 | 27.2°C | 25.6°C | 23.9°C | 28.0°C | 22.0°C | 18 mm | 79% | 4.6 m/s | 4.6 |
| 2000 | 27.6°C | 25.9°C | 24.2°C | 28.4°C | 22.4°C | 16 mm | 78% | 4.6 m/s | 4.7 |
| 1999 | 26.7°C | 25.2°C | 23.6°C | 28.0°C | 22.6°C | 17 mm | 78% | 4.5 m/s | 5.1 |
| 1998 🔥 | 27.8°C | 26.4°C | 24.9°C | 28.8°C | 23.3°C | 7 mm | 77% | 3.9 m/s | 4.7 |
| 1997 | 26.4°C | 24.9°C | 23.3°C | 27.5°C | 21.5°C | 14 mm | 78% | 3.8 m/s | 4.8 |
| 1996 | 27.8°C | 25.8°C | 23.9°C | 28.6°C | 23.0°C | 5 mm | 72% | 4.6 m/s | 4.6 |
| 1995 | 27.6°C | 25.9°C | 24.2°C | 28.6°C | 22.9°C | 45 mm | 77% | 4.5 m/s | 4.4 |
| 1994 | 26.8°C | 25.5°C | 24.2°C | 28.0°C | 22.8°C | 14 mm | 79% | 4.1 m/s | 4.8 |
| 1993 | 27.1°C | 25.2°C | 23.3°C | 28.1°C | 22.3°C | 12 mm | 75% | 4 m/s | 4.8 |
| 1992 | 26.7°C | 25.0°C | 23.2°C | 27.9°C | 21.9°C | 7 mm | 73% | 4.4 m/s | 5 |
| 1991 | 28.1°C | 26.2°C | 24.3°C | 29.1°C | 23.0°C | 14 mm | 76% | 4.2 m/s | 4.7 |
| 1990 | 27.4°C | 25.5°C | 23.6°C | 28.4°C | 22.0°C | 52 mm | 73% | 3.9 m/s | 4.9 |
| 1989 | 27.9°C | 25.8°C | 23.7°C | 28.6°C | 21.9°C | 21 mm | 76% | 4.4 m/s | 4.2 |
| 1988 | 27.3°C | 25.6°C | 24.0°C | 28.6°C | 22.6°C | 5 mm | 76% | 4.2 m/s | 4.9 |
| 1987 | 27.8°C | 25.9°C | 24.1°C | 28.6°C | 22.9°C | 14 mm | 74% | 4.7 m/s | 4.9 |
| 1986 | 26.5°C | 25.2°C | 23.8°C | 27.2°C | 22.5°C | 106 mm | 82% | 4.5 m/s | 4.2 |
| 1985 | 27.2°C | 25.6°C | 24.1°C | 27.9°C | 23.0°C | 86 mm | 79% | 3.9 m/s | 4.6 |
| 1984 | 26.7°C | 25.5°C | 24.3°C | 27.2°C | 23.6°C | 88 mm | 82% | 4 m/s | 4.1 |
| 1983 | 27.9°C | 25.9°C | 23.8°C | 29.7°C | 22.8°C | 3 mm | 72% | 4.2 m/s | — |
| 1982 ❄️ | 26.6°C | 24.9°C | 23.3°C | 28.1°C | 22.4°C | 4 mm | 76% | 3.8 m/s | — |
| 1981 | 27.3°C | 25.4°C | 23.5°C | 28.0°C | 22.8°C | 43 mm | 75% | 4 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 27.3°C with lows near 24.1°C (mean 25.7°C), based on 45 years of NASA POWER data.
January averages 29 mm of rainfall in Nagapattinam, one of the drier months. The wettest on record was 171 mm in 2021.
The hottest January reached 29.7°C in 1983. The coldest dipped to 21.5°C in 1997.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.5°C. Daytime highs moved from 27.1°C to 27.3°C and overnight lows from 23.8°C to 24.7°C over the same span.
January is one of the cooler months of the year in Nagapattinam and one of the drier months, so plan for around 27.3°C daytime highs and 24.1°C at night.
Yes — January is the coldest month of the year in Nagapattinam, averaging 25.7°C.
For January in Nagapattinam, pack light layers you can adjust through the day, with typical highs of 27.3°C and lows of 24.1°C.
Relative humidity in January averages 77% — quite humid.
Average wind speed in January is 4.2 m/s. The windiest January on record averaged 5 m/s (2014).
The wettest January on record was 2021 with 171 mm. On average, January sees 29 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 Nagapattinam 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.
