December is one of the cooler months of the year in South Andaman, with average highs near 28.7°C and lows around 25.6°C (mean 27.2°C). It is one of the drier months, averaging 94 mm of rainfall and 76% relative humidity across the period.
December is one of the cooler months of the year in South Andaman. Across 45 years of records, the warmest December in South Andaman was 2023 — when the month averaged 28.5°C — while the coldest was 1999 at 26.3°C. Typical December days reach 28.7°C with nights near 25.6°C. The long-term trend is warming, about 0.3°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.8°C | 26.9°C | 27.0°C | 27.5°C | 27.7°C | +0.9°C |
| Avg High | 28.2°C | 28.6°C | 28.6°C | 29.1°C | 29.1°C | +0.9°C |
| Avg Low | 25.3°C | 25.2°C | 25.4°C | 26.0°C | 26.3°C | +1°C |
| Avg Rain | 99 mm | 51 mm | 84 mm | 141 mm | 97 mm | -2 mm |
December temperatures in South Andaman have risen by about 1.1°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 24.3°C (1999) to a record high of 29.7°C (2019).
Rainfall in December is one of the drier months, averaging 94 mm, with a wettest year of 301 mm.
One of the best times to visit South Andaman
December is one of the best times to visit South Andaman. Expect days averaging 28.7°C and nights around 25.6°C (mean 27.2°C) — close to South Andaman's yearly average — with higher rainfall (94 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 28.9°C | 26.0°C | 27.4°C | 60 mm | 75% | 4.8 m/s | — |
| 2024 | 29.2°C | 26.3°C | 27.7°C | 161 mm | 79% | 4.7 m/s | 4.3 |
| 2023 🔥 | 29.6°C | 27.4°C | 28.5°C | 66 mm | 77% | 4.4 m/s | 4.8 |
| 2022 | 29.1°C | 25.9°C | 27.5°C | 129 mm | 77% | 4.5 m/s | 4.6 |
| 2021 | 28.7°C | 25.7°C | 27.2°C | 78 mm | 77% | 4.7 m/s | 4.9 |
| 2020 | 29.3°C | 26.4°C | 27.8°C | 88 mm | 76% | 3.9 m/s | 4.6 |
| 2019 | 29.7°C | 26.1°C | 27.9°C | 10 mm | 74% | 4.6 m/s | 5.3 |
| 2018 | 29.6°C | 25.5°C | 27.5°C | 173 mm | 80% | 4.5 m/s | 4.4 |
| 2017 | 29.2°C | 25.7°C | 27.4°C | 116 mm | 77% | 4.9 m/s | 4.6 |
| 2016 | 28.8°C | 25.9°C | 27.3°C | 255 mm | 79% | 5 m/s | 4.1 |
| 2015 | 29.5°C | 26.2°C | 27.8°C | 51 mm | 77% | 4.8 m/s | 4.9 |
| 2014 | 29.4°C | 27.0°C | 28.2°C | 50 mm | 76% | 5.2 m/s | 4.7 |
| 2013 | 28.6°C | 25.4°C | 27.0°C | 110 mm | 73% | 4.6 m/s | 4.7 |
| 2012 | 28.7°C | 26.2°C | 27.4°C | 164 mm | 78% | 4.7 m/s | 4.5 |
| 2011 | 28.8°C | 26.4°C | 27.6°C | 197 mm | 77% | 5.7 m/s | 4.3 |
| 2010 | 28.7°C | 25.9°C | 27.3°C | 282 mm | 79% | 4.8 m/s | 4.3 |
| 2009 | 28.7°C | 25.9°C | 27.3°C | 96 mm | 77% | 4.7 m/s | 4.7 |
| 2008 | 28.2°C | 24.5°C | 26.4°C | 10 mm | 74% | 4.8 m/s | 5 |
| 2007 | 28.5°C | 24.8°C | 26.6°C | 50 mm | 75% | 4.6 m/s | 4.7 |
| 2006 | 29.1°C | 25.2°C | 27.2°C | 37 mm | 75% | 5.5 m/s | 4.9 |
| 2005 | 28.4°C | 26.2°C | 27.3°C | 281 mm | 81% | 5.2 m/s | 3.9 |
| 2004 | 28.7°C | 25.0°C | 26.9°C | 10 mm | 73% | 4.9 m/s | 5.1 |
| 2003 | 29.1°C | 26.0°C | 27.6°C | 97 mm | 75% | 5.3 m/s | 4.5 |
| 2002 | 28.6°C | 25.4°C | 27.0°C | 114 mm | 79% | 4.9 m/s | 4.4 |
| 2001 | 28.5°C | 25.7°C | 27.1°C | 73 mm | 79% | 4.8 m/s | 4.7 |
| 2000 | 28.2°C | 25.6°C | 26.9°C | 68 mm | 80% | 4.6 m/s | 4.7 |
| 1999 ❄️ | 28.3°C | 24.3°C | 26.3°C | 114 mm | 76% | 5.4 m/s | 4.9 |
| 1998 | 28.7°C | 25.6°C | 27.1°C | 53 mm | 78% | 4.6 m/s | 4.7 |
| 1997 | 29.0°C | 25.2°C | 27.1°C | 38 mm | 78% | 4.9 m/s | 4.9 |
| 1996 | 28.0°C | 25.2°C | 26.6°C | 166 mm | 76% | 4.3 m/s | 4.4 |
| 1995 | 28.2°C | 25.1°C | 26.7°C | 11 mm | 72% | 5 m/s | 5.2 |
| 1994 | 29.0°C | 24.7°C | 26.8°C | 20 mm | 73% | 4.6 m/s | 5.1 |
| 1993 | 29.3°C | 25.2°C | 27.2°C | 37 mm | 75% | 4.8 m/s | 4.8 |
| 1992 | 28.0°C | 24.9°C | 26.5°C | 5 mm | 76% | 5.6 m/s | 5.1 |
| 1991 | 28.8°C | 25.5°C | 27.1°C | 36 mm | 76% | 5.5 m/s | 4.5 |
| 1990 | 28.7°C | 25.9°C | 27.3°C | 31 mm | 77% | 5.8 m/s | 4.9 |
| 1989 | 28.2°C | 25.2°C | 26.7°C | 3 mm | 73% | 5.3 m/s | 5.3 |
| 1988 | 27.5°C | 25.2°C | 26.4°C | 70 mm | 77% | 5.5 m/s | 4.9 |
| 1987 | 28.8°C | 26.2°C | 27.5°C | 200 mm | 76% | 5.1 m/s | 4.4 |
| 1986 | 28.6°C | 25.6°C | 27.1°C | 35 mm | 77% | 5 m/s | 4.9 |
| 1985 | 28.3°C | 24.8°C | 26.5°C | 58 mm | 76% | 4.8 m/s | 5 |
| 1984 🌧️ | 28.3°C | 24.5°C | 26.4°C | 301 mm | 76% | 4.8 m/s | 4.3 |
| 1983 | 28.0°C | 25.2°C | 26.6°C | 39 mm | 79% | 5 m/s | — |
| 1982 | 28.5°C | 25.3°C | 26.9°C | 15 mm | 74% | 4.7 m/s | — |
| 1981 | 27.7°C | 25.7°C | 26.7°C | 167 mm | 77% | 5.5 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 28.7°C with lows near 25.6°C (mean 27.2°C), based on 45 years of NASA POWER data.
December averages 94 mm of rainfall in South Andaman, one of the drier months. The wettest on record was 301 mm in 1984.
The hottest December reached 29.7°C in 2019. The coldest dipped to 24.3°C in 1999.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 1.1°C. Daytime highs moved from 28.2°C to 29.1°C and overnight lows from 25.1°C to 26.3°C over the same span.
December is one of the cooler months of the year in South Andaman and one of the drier months, so plan for around 28.7°C daytime highs and 25.6°C at night.
Not quite — December is the 2nd coolest month in South Andaman, averaging 27.2°C.
For December in South Andaman, pack light layers you can adjust through the day, with typical highs of 28.7°C and lows of 25.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 76% — quite humid.
Average wind speed in December is 4.9 m/s. The windiest December on record averaged 5.8 m/s (1990).
The wettest December on record was 1984 with 301 mm. On average, December sees 94 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 South Andaman 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.
