December is one of the cooler months of the year in Nagapattinam, with average highs near 27.4°C and lows around 24.8°C (mean 26.1°C). It is a relatively wet time of year, averaging 127 mm of rainfall and 81% relative humidity across the period.
December is one of the cooler months of the year in Nagapattinam. Across 45 years of records, the warmest Decembers in Nagapattinam were 1997 and 2023 — when the month averaged 26.9°C — while the coldest was 1996 at 25.1°C. Typical December days reach 27.4°C with nights near 24.8°C. The long-term December temperature trend is broadly flat.
December is a relatively wet time of year in Nagapattinam, averaging 127 mm of rainfall. The wettest December on record was 2020 with 323 mm, while the driest was 1995 at 11 mm.
Relative humidity in Nagapattinam during December averages 81%. The most humid December was 2024 at 86%, and the least humid was 1995 at 71%.
December receives about 4.2 kWh/m²/day of solar energy in Nagapattinam. The sunniest Decembers were 1988, 1994 and 2003 at 4.8 kWh/m²/day, and the cloudiest were 1993 and 2020 at 3.4.
Average wind speed in Nagapattinam during December is 4.7 m/s. The windiest December was 1993 at 5.2 m/s, while the calmest was 1997 at 4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.0°C | 25.9°C | 26.0°C | 26.2°C | 26.4°C | +0.4°C |
| Avg High | 27.4°C | 27.2°C | 27.3°C | 27.6°C | 27.6°C | +0.2°C |
| Avg Low | 24.6°C | 24.6°C | 24.6°C | 24.9°C | 25.2°C | +0.6°C |
| Avg Rain | 106 mm | 128 mm | 112 mm | 139 mm | 160 mm | +54 mm |
December temperatures in Nagapattinam have risen by about 0.6°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 21.4°C (2007) to a record high of 30.6°C (2016).
Rainfall in December is a relatively wet time of year, averaging 127 mm, with a wettest year of 323 mm.
One of the best times to visit Nagapattinam
December is one of the best times to visit Nagapattinam. Expect days averaging 27.4°C and nights around 24.8°C (mean 26.1°C) — cooler than Nagapattinam's yearly average — with higher rainfall (127 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 | 27.1°C | 25.8°C | 24.4°C | 28.1°C | 23.3°C | 73 mm | 81% | 4.5 m/s | — |
| 2024 | 27.9°C | 26.7°C | 25.4°C | 28.9°C | 23.0°C | 209 mm | 86% | 4.6 m/s | 3.8 |
| 2023 | 28.1°C | 26.9°C | 25.8°C | 29.4°C | 24.6°C | 122 mm | 85% | 5 m/s | 3.7 |
| 2022 | 27.5°C | 26.2°C | 25.0°C | 28.5°C | 22.1°C | 162 mm | 85% | 4.8 m/s | 3.9 |
| 2021 | 27.8°C | 26.5°C | 25.3°C | 29.1°C | 22.8°C | 72 mm | 80% | 4.1 m/s | 4.6 |
| 2020 🌧️ | 27.3°C | 26.2°C | 25.2°C | 28.2°C | 23.9°C | 323 mm | 83% | 5 m/s | 3.4 |
| 2019 | 27.9°C | 26.8°C | 25.7°C | 28.5°C | 24.7°C | 134 mm | 81% | 4.5 m/s | 4.1 |
| 2018 | 27.6°C | 26.2°C | 24.8°C | 28.7°C | 22.6°C | 84 mm | 82% | 4.4 m/s | 4.1 |
| 2017 | 27.4°C | 26.2°C | 25.0°C | 28.2°C | 23.4°C | 114 mm | 81% | 4.2 m/s | 4.4 |
| 2016 | 28.5°C | 26.5°C | 24.5°C | 30.6°C | 21.9°C | 79 mm | 75% | 4.5 m/s | 4.5 |
| 2015 | 27.7°C | 26.6°C | 25.6°C | 28.3°C | 24.6°C | 251 mm | 83% | 4.4 m/s | 3.8 |
| 2014 | 27.0°C | 25.9°C | 24.8°C | 28.0°C | 23.2°C | 141 mm | 85% | 5.1 m/s | 3.6 |
| 2013 | 27.4°C | 25.8°C | 24.3°C | 28.3°C | 22.7°C | 141 mm | 78% | 4.6 m/s | 4.2 |
| 2012 | 27.8°C | 26.5°C | 25.2°C | 28.8°C | 23.9°C | 83 mm | 81% | 4.8 m/s | 4.3 |
| 2011 | 27.6°C | 26.2°C | 24.9°C | 28.8°C | 21.9°C | 105 mm | 80% | 4.8 m/s | 4 |
| 2010 | 26.9°C | 25.7°C | 24.6°C | 28.2°C | 21.9°C | 256 mm | 85% | 4.5 m/s | 3.6 |
| 2009 | 27.4°C | 26.3°C | 25.2°C | 28.2°C | 24.0°C | 212 mm | 83% | 4.6 m/s | 3.6 |
| 2008 | 27.2°C | 25.9°C | 24.7°C | 27.9°C | 22.9°C | 69 mm | 80% | 4.3 m/s | 4.4 |
| 2007 | 27.0°C | 25.7°C | 24.4°C | 28.1°C | 21.4°C | 248 mm | 82% | 4.6 m/s | 4 |
| 2006 | 27.5°C | 26.2°C | 25.0°C | 28.4°C | 23.3°C | 66 mm | 76% | 5 m/s | 4.5 |
| 2005 | 26.8°C | 25.5°C | 24.3°C | 27.6°C | 22.8°C | 149 mm | 85% | 4.8 m/s | 4.3 |
| 2004 | 27.0°C | 25.7°C | 24.4°C | 27.7°C | 22.6°C | 55 mm | 79% | 4.9 m/s | 4.3 |
| 2003 | 27.9°C | 26.3°C | 24.8°C | 28.8°C | 22.8°C | 26 mm | 78% | 4.8 m/s | 4.8 |
| 2002 | 27.5°C | 25.9°C | 24.4°C | 28.3°C | 22.6°C | 73 mm | 79% | 4.8 m/s | 4.4 |
| 2001 | 27.4°C | 26.2°C | 24.9°C | 28.5°C | 23.9°C | 135 mm | 79% | 5.1 m/s | 4 |
| 2000 | 27.2°C | 25.8°C | 24.3°C | 28.5°C | 22.9°C | 91 mm | 79% | 5 m/s | 4.4 |
| 1999 | 27.1°C | 25.6°C | 24.2°C | 28.1°C | 22.6°C | 78 mm | 79% | 4.9 m/s | 4.3 |
| 1998 | 27.3°C | 26.2°C | 25.1°C | 28.7°C | 23.2°C | 237 mm | 81% | 5.1 m/s | 3.7 |
| 1997 🔥 | 27.9°C | 26.9°C | 25.8°C | 28.9°C | 24.3°C | 204 mm | 83% | 4 m/s | 3.8 |
| 1996 ❄️ | 26.5°C | 25.1°C | 23.8°C | 29.3°C | 22.0°C | 277 mm | 81% | 4.5 m/s | 4 |
| 1995 | 27.9°C | 26.2°C | 24.6°C | 28.5°C | 24.0°C | 11 mm | 71% | 5 m/s | 4.4 |
| 1994 | 27.1°C | 25.5°C | 24.0°C | 27.9°C | 22.5°C | 61 mm | 75% | 4.8 m/s | 4.8 |
| 1993 | 26.7°C | 25.7°C | 24.7°C | 27.6°C | 23.1°C | 266 mm | 84% | 5.2 m/s | 3.4 |
| 1992 | 26.9°C | 25.6°C | 24.4°C | 27.7°C | 23.1°C | 58 mm | 77% | 5 m/s | 4.3 |
| 1991 | 27.0°C | 25.7°C | 24.4°C | 28.1°C | 23.2°C | 48 mm | 80% | 4.3 m/s | 4.2 |
| 1990 | 27.8°C | 26.5°C | 25.1°C | 28.5°C | 23.7°C | 40 mm | 79% | 5.1 m/s | 4.1 |
| 1989 | 27.4°C | 25.9°C | 24.4°C | 28.1°C | 23.4°C | 56 mm | 78% | 4.5 m/s | 4.5 |
| 1988 | 28.1°C | 26.4°C | 24.7°C | 29.0°C | 23.6°C | 39 mm | 76% | 4.6 m/s | 4.8 |
| 1987 | 27.5°C | 26.2°C | 25.0°C | 29.4°C | 22.1°C | 245 mm | 84% | 4.7 m/s | 3.9 |
| 1986 | 28.0°C | 26.6°C | 25.1°C | 28.7°C | 24.1°C | 74 mm | 81% | 4.6 m/s | 4.3 |
| 1985 | 26.8°C | 25.5°C | 24.1°C | 27.6°C | 23.0°C | 91 mm | 82% | 4.4 m/s | 4.5 |
| 1984 | 27.3°C | 25.6°C | 24.0°C | 28.2°C | 22.4°C | 85 mm | 79% | 4.3 m/s | 4.6 |
| 1983 | 26.9°C | 25.8°C | 24.7°C | 27.9°C | 23.5°C | 230 mm | 84% | 4.7 m/s | — |
| 1982 | 27.7°C | 26.3°C | 24.9°C | 28.4°C | 24.0°C | 66 mm | 76% | 4.9 m/s | — |
| 1981 | 27.0°C | 25.7°C | 24.3°C | 27.6°C | 22.3°C | 72 mm | 81% | 4.4 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 27.4°C with lows near 24.8°C (mean 26.1°C), based on 45 years of NASA POWER data.
December averages 127 mm of rainfall in Nagapattinam, a relatively wet time of year. The wettest on record was 323 mm in 2020.
The hottest December reached 30.6°C in 2016. The coldest dipped to 21.4°C in 2007.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.6°C. Daytime highs moved from 27.1°C to 27.7°C and overnight lows from 24.4°C to 25.2°C over the same span.
December is one of the cooler months of the year in Nagapattinam and a relatively wet time of year, so plan for around 27.4°C daytime highs and 24.8°C at night.
Not quite — December is the 2nd coolest month in Nagapattinam, averaging 26.1°C.
For December in Nagapattinam, pack light layers you can adjust through the day, with typical highs of 27.4°C and lows of 24.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 81% — quite humid.
Average wind speed in December is 4.7 m/s. The windiest December on record averaged 5.2 m/s (1993).
The wettest December on record was 2020 with 323 mm. On average, December sees 127 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 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.
