January is one of the cooler months of the year in Ramanathapuram, with average highs near 31.2°C and lows around 20°C (mean 25.6°C). It is one of the drier months, averaging 29 mm of rainfall and 76% relative humidity across the period.
January is one of the cooler months of the year in Ramanathapuram. Across 45 years of records, the warmest January in Ramanathapuram was 2013 — when the month averaged 27.1°C — while the coldest was 2006 at 23.6°C. Typical January days reach 31.2°C with nights near 20°C. The long-term January temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.6°C | 25.6°C | 25.6°C | 25.7°C | 25.4°C | -0.2°C |
| Avg High | 31.2°C | 31.5°C | 31.5°C | 31.3°C | 30.2°C | -1°C |
| Avg Low | 20.0°C | 19.6°C | 19.8°C | 20.1°C | 20.5°C | +0.5°C |
| Avg Rain | 36 mm | 19 mm | 15 mm | 18 mm | 73 mm | +37 mm |
January temperatures in Ramanathapuram have stayed relatively stable across the record.
January has ranged from a record low of 17.7°C (1990) to a record high of 33.3°C (1991).
Rainfall in January is one of the drier months, averaging 29 mm, with a wettest year of 297 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°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 Ramanathapuram
January is one of the best times to visit Ramanathapuram. Expect days averaging 31.2°C and nights around 20°C (mean 25.6°C) — cooler than Ramanathapuram's yearly average — with low rainfall (29 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 29.4°C | 21.2°C | 25.3°C | 50 mm | 83% | 4.2 m/s | 4.4 |
| 2024 | 30.3°C | 20.3°C | 25.3°C | 32 mm | 84% | 3.6 m/s | 4.7 |
| 2023 | 30.0°C | 19.6°C | 24.8°C | 12 mm | 80% | 3.8 m/s | 5 |
| 2022 | 31.1°C | 20.8°C | 26.0°C | 39 mm | 82% | 3.5 m/s | 5.1 |
| 2021 🌧️ | 29.2°C | 20.8°C | 25.0°C | 297 mm | 87% | 3.6 m/s | 4.2 |
| 2020 | 31.2°C | 20.4°C | 25.8°C | 9 mm | 79% | 3.4 m/s | 5.4 |
| 2019 | 32.1°C | 20.0°C | 26.0°C | 1 mm | 70% | 4 m/s | 5.4 |
| 2018 | 32.1°C | 20.4°C | 26.3°C | 6 mm | 71% | 3.9 m/s | 5.2 |
| 2017 | 32.6°C | 20.5°C | 26.6°C | 64 mm | 70% | 4.2 m/s | 4.9 |
| 2016 | 30.3°C | 20.1°C | 25.2°C | 1 mm | 81% | 3.6 m/s | 5.4 |
| 2015 | 30.6°C | 19.5°C | 25.0°C | 3 mm | 78% | 3.7 m/s | 5.5 |
| 2014 | 31.8°C | 21.2°C | 26.5°C | 29 mm | 73% | 4.4 m/s | 4.9 |
| 2013 🔥 | 32.4°C | 21.7°C | 27.1°C | 24 mm | 71% | 4.2 m/s | 5.3 |
| 2012 | 30.9°C | 19.4°C | 25.1°C | 15 mm | 74% | 3.6 m/s | 5.6 |
| 2011 | 29.1°C | 18.9°C | 24.0°C | 20 mm | 85% | 4 m/s | 4.9 |
| 2010 | 31.3°C | 19.6°C | 25.4°C | 14 mm | 78% | 3.9 m/s | 5.2 |
| 2009 | 31.4°C | 19.9°C | 25.7°C | 8 mm | 76% | 4 m/s | 5.4 |
| 2008 | 32.7°C | 19.1°C | 25.9°C | 3 mm | 76% | 3.7 m/s | 5.5 |
| 2007 | 31.4°C | 19.9°C | 25.6°C | 8 mm | 77% | 4.2 m/s | 5.1 |
| 2006 ❄️ | 28.6°C | 18.7°C | 23.6°C | 29 mm | 84% | 3.7 m/s | 5.1 |
| 2005 | 30.9°C | 19.2°C | 25.1°C | 27 mm | 79% | 3.6 m/s | 5.1 |
| 2004 | 32.4°C | 20.4°C | 26.4°C | 3 mm | 73% | 4 m/s | 5.6 |
| 2003 | 32.1°C | 21.0°C | 26.6°C | 28 mm | 72% | 4.4 m/s | 5.1 |
| 2002 | 32.6°C | 19.3°C | 26.0°C | 6 mm | 77% | 3.7 m/s | 5.1 |
| 2001 | 30.9°C | 20.6°C | 25.7°C | 23 mm | 77% | 4.2 m/s | 4.9 |
| 2000 | 31.7°C | 19.4°C | 25.5°C | 16 mm | 77% | 4.2 m/s | 5 |
| 1999 | 29.4°C | 19.4°C | 24.4°C | 23 mm | 82% | 3.9 m/s | 5.5 |
| 1998 | 32.3°C | 20.9°C | 26.6°C | 1 mm | 76% | 3.8 m/s | 4.7 |
| 1997 | 31.8°C | 18.9°C | 25.4°C | 9 mm | 74% | 3.8 m/s | 5 |
| 1996 | 32.0°C | 20.8°C | 26.4°C | 12 mm | 68% | 4.5 m/s | 4.8 |
| 1995 | 32.3°C | 19.7°C | 26.0°C | 10 mm | 72% | 4.2 m/s | 4.6 |
| 1994 | 29.0°C | 19.5°C | 24.3°C | 32 mm | 84% | 3.7 m/s | 5 |
| 1993 | 30.7°C | 18.8°C | 24.8°C | 0 mm | 77% | 3.8 m/s | 5 |
| 1992 | 32.0°C | 19.7°C | 25.8°C | 6 mm | 69% | 4.4 m/s | 5.3 |
| 1991 | 33.3°C | 20.7°C | 27.0°C | 7 mm | 71% | 4 m/s | 4.8 |
| 1990 | 31.9°C | 17.7°C | 24.8°C | 93 mm | 72% | 3.8 m/s | 5.2 |
| 1989 | 32.5°C | 19.6°C | 26.1°C | 6 mm | 70% | 4.3 m/s | 4.5 |
| 1988 | 31.1°C | 19.8°C | 25.4°C | 1 mm | 77% | 3.8 m/s | 5.2 |
| 1987 | 32.1°C | 19.9°C | 26.0°C | 8 mm | 69% | 4.4 m/s | 5.1 |
| 1986 | 31.8°C | 20.8°C | 26.3°C | 42 mm | 76% | 4.1 m/s | 4.7 |
| 1985 | 30.9°C | 20.3°C | 25.6°C | 111 mm | 80% | 3.5 m/s | 4.7 |
| 1984 | 28.4°C | 21.1°C | 24.8°C | 118 mm | 86% | 3.6 m/s | 4.2 |
| 1983 | 32.9°C | 19.6°C | 26.2°C | 0 mm | 70% | 4.1 m/s | — |
| 1982 | 29.9°C | 19.6°C | 24.8°C | 0 mm | 79% | 3.6 m/s | — |
| 1981 | 31.4°C | 19.2°C | 25.3°C | 40 mm | 71% | 3.7 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 31.2°C with lows near 20°C (mean 25.6°C), based on 45 years of NASA POWER data.
January averages 29 mm of rainfall in Ramanathapuram, one of the drier months. The wettest on record was 297 mm in 2021.
The hottest January reached 33.3°C in 1991. The coldest dipped to 17.7°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have held steady by about 0°C. Daytime highs moved from 30.7°C to 30°C and overnight lows from 20°C to 20.5°C over the same span.
January is one of the cooler months of the year in Ramanathapuram and one of the drier months, so plan for around 31.2°C daytime highs and 20°C at night.
Not quite — January is the 2nd coolest month in Ramanathapuram, averaging 25.6°C.
For January in Ramanathapuram, pack light, breathable clothing and sun protection, with typical highs of 31.2°C and lows of 20°C.
Relative humidity in January averages 76% — quite humid.
Average wind speed in January is 3.9 m/s. The windiest January on record averaged 4.5 m/s (1996).
The wettest January on record was 2021 with 297 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 Ramanathapuram 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.
