December is one of the cooler months of the year in Thoothukudi, with average highs near 29.1°C and lows around 21.9°C (mean 25.5°C). It is one of the drier months, averaging 83 mm of rainfall and 83% relative humidity across the period.
December is one of the cooler months of the year in Thoothukudi. Across 45 years of records, the warmest Decembers in Thoothukudi were 1986 and 2016 — when the month averaged 27.1°C — while the coldest was 1992 at 24.3°C. Typical December days reach 29.1°C with nights near 21.9°C. The long-term December temperature trend is broadly flat.
December is one of the drier months in Thoothukudi, averaging 83 mm of rainfall. The wettest December on record was 2023 with 352 mm, while the driest was 1995 at 3 mm.
Relative humidity in Thoothukudi during December averages 83%. The most humid December was 2015 at 90%, and the least humid was 1995 at 71%.
December receives about 4.4 kWh/m²/day of solar energy in Thoothukudi. The sunniest December was 2003 at 5.2 kWh/m²/day, and the cloudiest was 1993 at 3.7.
Average wind speed in Thoothukudi during December is 3.1 m/s. The windiest Decembers were 1995, 2004 and 2006, among others at 3.7 m/s, while the calmest was 1987 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.8°C | 25.2°C | 25.0°C | 25.9°C | 25.7°C | -0.1°C |
| Avg High | 29.7°C | 28.9°C | 28.6°C | 29.4°C | 28.9°C | -0.8°C |
| Avg Low | 21.9°C | 21.5°C | 21.5°C | 22.4°C | 22.6°C | +0.7°C |
| Avg Rain | 85 mm | 75 mm | 49 mm | 85 mm | 150 mm | +65 mm |
December temperatures in Thoothukudi have risen by about 0.3°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 17.2°C (1996) to a record high of 33.9°C (1984).
Rainfall in December is one of the drier months, averaging 83 mm, with a wettest year of 352 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°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 Thoothukudi
December is one of the best times to visit Thoothukudi. Expect days averaging 29.1°C and nights around 21.9°C (mean 25.5°C) — cooler than Thoothukudi's yearly average — with higher rainfall (83 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 | 28.7°C | 24.8°C | 21.0°C | 31.7°C | 18.3°C | 23 mm | 84% | 3 m/s | — |
| 2024 | 29.8°C | 26.7°C | 23.7°C | 31.4°C | 21.6°C | 219 mm | 85% | 2.6 m/s | 4.5 |
| 2023 🌧️ | 29.0°C | 26.3°C | 23.7°C | 30.8°C | 21.7°C | 352 mm | 88% | 3.4 m/s | 4 |
| 2022 | 29.2°C | 25.9°C | 22.7°C | 31.2°C | 20.9°C | 109 mm | 85% | 2.8 m/s | 4.2 |
| 2021 | 28.7°C | 25.4°C | 22.1°C | 30.6°C | 18.0°C | 65 mm | 86% | 2.8 m/s | 5.1 |
| 2020 | 28.2°C | 25.3°C | 22.5°C | 29.9°C | 19.7°C | 134 mm | 88% | 3.3 m/s | 4 |
| 2019 | 28.8°C | 25.8°C | 22.9°C | 29.7°C | 21.5°C | 88 mm | 88% | 3.1 m/s | 4.1 |
| 2018 | 30.9°C | 26.7°C | 22.6°C | 32.8°C | 21.1°C | 19 mm | 79% | 2.8 m/s | 4.6 |
| 2017 | 29.0°C | 25.7°C | 22.3°C | 30.4°C | 19.6°C | 92 mm | 84% | 2.8 m/s | 4.8 |
| 2016 | 32.0°C | 27.1°C | 22.2°C | 33.6°C | 19.6°C | 52 mm | 73% | 2.8 m/s | 5 |
| 2015 | 28.3°C | 25.6°C | 23.0°C | 30.1°C | 20.2°C | 194 mm | 90% | 3 m/s | 4.3 |
| 2014 | 28.0°C | 25.2°C | 22.4°C | 30.0°C | 19.9°C | 83 mm | 88% | 3.1 m/s | 3.8 |
| 2013 | 29.7°C | 25.8°C | 21.9°C | 31.1°C | 19.1°C | 90 mm | 80% | 3 m/s | 4.4 |
| 2012 | 30.5°C | 26.6°C | 22.7°C | 31.8°C | 19.6°C | 57 mm | 80% | 3.5 m/s | 4.2 |
| 2011 | 29.1°C | 25.5°C | 21.8°C | 32.5°C | 18.7°C | 61 mm | 83% | 3 m/s | 4.5 |
| 2010 | 27.6°C | 24.8°C | 22.0°C | 29.8°C | 18.8°C | 112 mm | 88% | 2.6 m/s | 4 |
| 2009 | 28.9°C | 25.7°C | 22.5°C | 29.9°C | 19.9°C | 61 mm | 86% | 3.1 m/s | 4.3 |
| 2008 | 28.5°C | 24.9°C | 21.3°C | 29.7°C | 17.9°C | 33 mm | 84% | 3.2 m/s | 4.6 |
| 2007 | 29.2°C | 25.5°C | 21.8°C | 31.6°C | 18.6°C | 73 mm | 82% | 3.5 m/s | 4.2 |
| 2006 | 28.1°C | 24.6°C | 21.1°C | 29.0°C | 17.9°C | 16 mm | 85% | 3.7 m/s | 4.7 |
| 2005 | 28.2°C | 25.2°C | 22.2°C | 30.3°C | 19.2°C | 115 mm | 86% | 2.3 m/s | 4.7 |
| 2004 | 28.3°C | 24.5°C | 20.8°C | 29.5°C | 17.8°C | 39 mm | 85% | 3.7 m/s | 4.6 |
| 2003 | 29.2°C | 25.2°C | 21.2°C | 30.7°C | 18.5°C | 7 mm | 82% | 3.1 m/s | 5.2 |
| 2002 | 28.4°C | 24.8°C | 21.3°C | 29.6°C | 18.8°C | 27 mm | 84% | 3.2 m/s | 4.3 |
| 2001 | 28.0°C | 24.8°C | 21.5°C | 29.2°C | 18.6°C | 64 mm | 86% | 3.4 m/s | 4.6 |
| 2000 | 29.2°C | 25.0°C | 20.8°C | 31.6°C | 17.7°C | 58 mm | 80% | 3.5 m/s | 5 |
| 1999 | 28.3°C | 24.7°C | 21.0°C | 29.5°C | 18.3°C | 31 mm | 83% | 3.2 m/s | 5 |
| 1998 | 27.4°C | 24.7°C | 21.9°C | 29.8°C | 18.6°C | 240 mm | 88% | 3.2 m/s | 4.1 |
| 1997 | 28.8°C | 26.2°C | 23.6°C | 30.0°C | 20.8°C | 83 mm | 89% | 2.7 m/s | 3.9 |
| 1996 | 28.9°C | 25.1°C | 21.2°C | 33.5°C | 17.2°C | 109 mm | 81% | 2.8 m/s | 4.1 |
| 1995 | 31.0°C | 25.9°C | 20.9°C | 32.1°C | 19.0°C | 3 mm | 71% | 3.7 m/s | 4.5 |
| 1994 | 29.9°C | 25.1°C | 20.4°C | 31.9°C | 17.7°C | 21 mm | 77% | 3.7 m/s | 5 |
| 1993 | 27.4°C | 24.6°C | 21.8°C | 29.3°C | 19.3°C | 184 mm | 89% | 3.4 m/s | 3.7 |
| 1992 ❄️ | 27.8°C | 24.3°C | 20.9°C | 28.8°C | 18.1°C | 37 mm | 85% | 3.7 m/s | 4.2 |
| 1991 | 29.3°C | 25.3°C | 21.3°C | 32.0°C | 18.3°C | 24 mm | 81% | 3.2 m/s | 4.3 |
| 1990 | 30.3°C | 26.3°C | 22.4°C | 32.4°C | 19.6°C | 16 mm | 79% | 3.4 m/s | 4.2 |
| 1989 | 30.4°C | 26.0°C | 21.6°C | 32.8°C | 19.5°C | 26 mm | 78% | 3.5 m/s | 4.7 |
| 1988 | 30.9°C | 26.3°C | 21.8°C | 32.2°C | 19.3°C | 29 mm | 75% | 3.1 m/s | 4.5 |
| 1987 | 28.3°C | 25.5°C | 22.7°C | 30.1°C | 19.0°C | 285 mm | 86% | 2.2 m/s | 4.4 |
| 1986 🔥 | 31.4°C | 27.1°C | 22.8°C | 32.8°C | 20.5°C | 33 mm | 77% | 3.3 m/s | 4.5 |
| 1985 | 29.5°C | 25.7°C | 21.8°C | 31.4°C | 18.7°C | 62 mm | 81% | 3 m/s | 4.6 |
| 1984 | 30.8°C | 25.8°C | 20.8°C | 33.9°C | 17.5°C | 29 mm | 75% | 2.7 m/s | 4.6 |
| 1983 | 28.8°C | 25.7°C | 22.6°C | 30.4°C | 21.0°C | 233 mm | 85% | 3.1 m/s | — |
| 1982 | 29.6°C | 25.6°C | 21.7°C | 31.4°C | 20.1°C | 36 mm | 80% | 3.5 m/s | — |
| 1981 | 28.0°C | 24.8°C | 21.6°C | 29.3°C | 18.6°C | 33 mm | 86% | 2.8 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 29.1°C with lows near 21.9°C (mean 25.5°C), based on 45 years of NASA POWER data.
December averages 83 mm of rainfall in Thoothukudi, one of the drier months. The wettest on record was 352 mm in 2023.
The hottest December reached 33.9°C in 1984. The coldest dipped to 17.2°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.3°C — but days and nights have moved in opposite directions. Overnight lows rose from 21.7°C to 22.6°C while daytime highs eased from 29.3°C to 29.1°C, narrowing the gap between day and night.
December is one of the cooler months of the year in Thoothukudi and one of the drier months, so plan for around 29.1°C daytime highs and 21.9°C at night.
Yes — December is the coldest month of the year in Thoothukudi, averaging 25.5°C.
For December in Thoothukudi, pack light layers you can adjust through the day, with typical highs of 29.1°C and lows of 21.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 83% — quite humid.
Average wind speed in December is 3.1 m/s. The windiest December on record averaged 3.7 m/s (1992).
The wettest December on record was 2023 with 352 mm. On average, December sees 83 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 Thoothukudi behaves each December, 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 December specifically, along with year-by-year records and how the month has changed over the decades.
