January is one of the cooler months of the year in Ramanathapuram, with average highs near 29.5°C and lows around 22.1°C (mean 25.8°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 1991 — when the month averaged 27.2°C — while the coldest were 1982 and 1999 at 24.4°C. Typical January days reach 29.5°C with nights near 22.1°C. The long-term January temperature trend is broadly flat.
January is one of the drier months in Ramanathapuram, averaging 29 mm of rainfall. The wettest January on record was 2021 with 297 mm, while the driest were 1982 and 1983 at 0 mm.
Relative humidity in Ramanathapuram during January averages 76%. The most humid January was 2021 at 87%, and the least humid was 1996 at 68%.
January receives about 5 kWh/m²/day of solar energy in Ramanathapuram. The sunniest Januarys were 2004 and 2012 at 5.6 kWh/m²/day, and the cloudiest were 1984 and 2021 at 4.2.
Average wind speed in Ramanathapuram during January is 3.9 m/s. The windiest January was 1996 at 4.5 m/s, while the calmest was 2020 at 3.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.8°C | 25.8°C | 25.8°C | 26.0°C | 25.6°C | -0.2°C |
| Avg High | 29.6°C | 29.7°C | 29.6°C | 29.9°C | 28.6°C | -1°C |
| Avg Low | 22.0°C | 21.8°C | 22.1°C | 22.1°C | 22.7°C | +0.7°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 0.1°C per decade while lows rose 0.1°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 29.5°C and nights around 22.1°C (mean 25.8°C) — cooler than Ramanathapuram'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 | 28.1°C | 25.3°C | 22.4°C | 29.4°C | 21.2°C | 50 mm | 83% | 4.2 m/s | 4.4 |
| 2024 | 28.7°C | 25.9°C | 23.0°C | 30.3°C | 20.3°C | 32 mm | 84% | 3.6 m/s | 4.7 |
| 2023 | 28.3°C | 24.8°C | 21.4°C | 30.0°C | 19.6°C | 12 mm | 80% | 3.8 m/s | 5 |
| 2022 | 29.2°C | 26.2°C | 23.2°C | 31.1°C | 20.8°C | 39 mm | 82% | 3.5 m/s | 5.1 |
| 2021 🌧️ | 27.8°C | 25.5°C | 23.2°C | 29.2°C | 20.8°C | 297 mm | 87% | 3.6 m/s | 4.2 |
| 2020 | 29.5°C | 26.1°C | 22.8°C | 31.2°C | 20.4°C | 9 mm | 79% | 3.4 m/s | 5.4 |
| 2019 | 30.7°C | 26.1°C | 21.6°C | 32.1°C | 20.0°C | 1 mm | 70% | 4 m/s | 5.4 |
| 2018 | 30.7°C | 26.4°C | 22.1°C | 32.1°C | 20.4°C | 6 mm | 71% | 3.9 m/s | 5.2 |
| 2017 | 30.9°C | 26.6°C | 22.3°C | 32.6°C | 20.5°C | 64 mm | 70% | 4.2 m/s | 4.9 |
| 2016 | 28.6°C | 25.2°C | 21.8°C | 30.3°C | 20.1°C | 1 mm | 81% | 3.6 m/s | 5.4 |
| 2015 | 29.2°C | 25.6°C | 22.0°C | 30.6°C | 19.5°C | 3 mm | 78% | 3.7 m/s | 5.5 |
| 2014 | 30.3°C | 26.4°C | 22.4°C | 31.8°C | 21.2°C | 29 mm | 73% | 4.4 m/s | 4.9 |
| 2013 | 31.2°C | 27.1°C | 23.1°C | 32.4°C | 21.7°C | 24 mm | 71% | 4.2 m/s | 5.3 |
| 2012 | 29.8°C | 25.9°C | 21.9°C | 30.9°C | 19.4°C | 15 mm | 74% | 3.6 m/s | 5.6 |
| 2011 | 27.7°C | 24.8°C | 21.8°C | 29.1°C | 18.9°C | 20 mm | 85% | 4 m/s | 4.9 |
| 2010 | 29.5°C | 26.0°C | 22.4°C | 31.3°C | 19.6°C | 14 mm | 78% | 3.9 m/s | 5.2 |
| 2009 | 29.3°C | 25.5°C | 21.7°C | 31.4°C | 19.9°C | 8 mm | 76% | 4 m/s | 5.4 |
| 2008 | 29.5°C | 25.6°C | 21.7°C | 32.7°C | 19.1°C | 3 mm | 76% | 3.7 m/s | 5.5 |
| 2007 | 29.3°C | 25.6°C | 21.9°C | 31.4°C | 19.9°C | 8 mm | 77% | 4.2 m/s | 5.1 |
| 2006 | 27.6°C | 24.6°C | 21.5°C | 28.6°C | 18.7°C | 29 mm | 84% | 3.7 m/s | 5.1 |
| 2005 | 29.3°C | 25.8°C | 22.3°C | 30.9°C | 19.2°C | 27 mm | 79% | 3.6 m/s | 5.1 |
| 2004 | 30.6°C | 26.5°C | 22.5°C | 32.4°C | 20.4°C | 3 mm | 73% | 4 m/s | 5.6 |
| 2003 | 30.8°C | 26.6°C | 22.5°C | 32.1°C | 21.0°C | 28 mm | 72% | 4.4 m/s | 5.1 |
| 2002 | 30.1°C | 26.3°C | 22.5°C | 32.6°C | 19.3°C | 6 mm | 77% | 3.7 m/s | 5.1 |
| 2001 | 29.4°C | 25.9°C | 22.5°C | 30.9°C | 20.6°C | 23 mm | 77% | 4.2 m/s | 4.9 |
| 2000 | 29.6°C | 25.9°C | 22.2°C | 31.7°C | 19.4°C | 16 mm | 77% | 4.2 m/s | 5 |
| 1999 | 27.8°C | 24.4°C | 20.9°C | 29.4°C | 19.4°C | 23 mm | 82% | 3.9 m/s | 5.5 |
| 1998 | 30.2°C | 26.6°C | 23.0°C | 32.3°C | 20.9°C | 1 mm | 76% | 3.8 m/s | 4.7 |
| 1997 | 29.7°C | 25.7°C | 21.7°C | 31.8°C | 18.9°C | 9 mm | 74% | 3.8 m/s | 5 |
| 1996 | 31.1°C | 26.6°C | 22.1°C | 32.0°C | 20.8°C | 12 mm | 68% | 4.5 m/s | 4.8 |
| 1995 | 30.8°C | 26.7°C | 22.7°C | 32.3°C | 19.7°C | 10 mm | 72% | 4.2 m/s | 4.6 |
| 1994 | 27.8°C | 24.8°C | 21.8°C | 29.0°C | 19.5°C | 32 mm | 84% | 3.7 m/s | 5 |
| 1993 | 28.5°C | 24.6°C | 20.8°C | 30.7°C | 18.8°C | 0 mm | 77% | 3.8 m/s | 5 |
| 1992 | 29.8°C | 25.5°C | 21.3°C | 32.0°C | 19.7°C | 6 mm | 69% | 4.4 m/s | 5.3 |
| 1991 🔥 | 31.4°C | 27.2°C | 23.0°C | 33.3°C | 20.7°C | 7 mm | 71% | 4 m/s | 4.8 |
| 1990 | 29.9°C | 25.6°C | 21.2°C | 31.9°C | 17.7°C | 93 mm | 72% | 3.8 m/s | 5.2 |
| 1989 | 31.4°C | 26.9°C | 22.3°C | 32.5°C | 19.6°C | 6 mm | 70% | 4.3 m/s | 4.5 |
| 1988 | 29.0°C | 25.3°C | 21.6°C | 31.1°C | 19.8°C | 1 mm | 77% | 3.8 m/s | 5.2 |
| 1987 | 31.0°C | 26.6°C | 22.2°C | 32.1°C | 19.9°C | 8 mm | 69% | 4.4 m/s | 5.1 |
| 1986 | 29.4°C | 26.0°C | 22.6°C | 31.8°C | 20.8°C | 42 mm | 76% | 4.1 m/s | 4.7 |
| 1985 | 29.0°C | 25.7°C | 22.3°C | 30.9°C | 20.3°C | 111 mm | 80% | 3.5 m/s | 4.7 |
| 1984 | 27.3°C | 25.0°C | 22.6°C | 28.4°C | 21.1°C | 118 mm | 86% | 3.6 m/s | 4.2 |
| 1983 | 30.8°C | 26.2°C | 21.6°C | 32.9°C | 19.6°C | 0 mm | 70% | 4.1 m/s | — |
| 1982 ❄️ | 28.0°C | 24.4°C | 20.8°C | 29.9°C | 19.6°C | 0 mm | 79% | 3.6 m/s | — |
| 1981 | 30.2°C | 26.0°C | 21.7°C | 31.4°C | 19.2°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 29.5°C with lows near 22.1°C (mean 25.8°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 — but days and nights have moved in opposite directions. Overnight lows rose from 21.8°C to 22.6°C while daytime highs eased from 29.1°C to 28.4°C, narrowing the gap between day and night.
January is one of the cooler months of the year in Ramanathapuram and one of the drier months, so plan for around 29.5°C daytime highs and 22.1°C at night.
Not quite — January is the 2nd coolest month in Ramanathapuram, averaging 25.8°C.
For January in Ramanathapuram, pack light layers you can adjust through the day, with typical highs of 29.5°C and lows of 22.1°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.
