December is one of the cooler months of the year in Guna, with average highs near 26.2°C and lows around 10.1°C (mean 18.2°C). It is one of the drier months, averaging 6 mm of rainfall and 46% relative humidity across the period.
December is one of the cooler months of the year in Guna. Across 45 years of records, the warmest December in Guna was 2008 — when the month averaged 20.3°C — while the coldest was 2019 at 14.9°C. Typical December days reach 26.2°C with nights near 10.1°C. The long-term trend is cooling, about 0.2°C per decade.
December is one of the drier months in Guna, averaging 6 mm of rainfall. The wettest December on record was 1997 with 57 mm, while the driest were 2016, 2018 and 2025, among others at 0 mm.
Relative humidity in Guna during December averages 46%. The most humid December was 1997 at 78%, and the least humid was 2000 at 18%.
December receives about 4.2 kWh/m²/day of solar energy in Guna. The sunniest December was 1996 at 4.6 kWh/m²/day, and the cloudiest were 2021 and 2023 at 3.4.
Average wind speed in Guna during December is 1.6 m/s. The windiest December was 1986 at 2 m/s, while the calmest was 2025 at 1.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.1°C | 18.1°C | 19.3°C | 17.6°C | 17.2°C | -0.9°C |
| Avg High | 26.4°C | 26.3°C | 27.6°C | 25.6°C | 24.4°C | -2°C |
| Avg Low | 9.9°C | 9.9°C | 11.1°C | 9.7°C | 10.0°C | +0.1°C |
| Avg Rain | 5 mm | 7 mm | 3 mm | 8 mm | 9 mm | +4 mm |
December temperatures in Guna have fallen by about 0.6°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 1.3°C (2019) to a record high of 32.3°C (2015).
Rainfall in December is one of the drier months, averaging 6 mm, with a wettest year of 57 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.4°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
A good time to visit Guna
December is a good time to visit Guna, with days averaging 26.2°C and nights around 10.1°C (mean 18.2°C, cooler than Guna's yearly average) and low rainfall. November and February are marginally more temperate, but December still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 24.4°C | 16.9°C | 9.3°C | 26.1°C | 5.6°C | 0 mm | 63% | 1.3 m/s | — |
| 2024 | 24.0°C | 16.5°C | 9.0°C | 27.5°C | 5.2°C | 18 mm | 63% | 1.5 m/s | 3.8 |
| 2023 | 25.1°C | 18.1°C | 11.1°C | 27.8°C | 7.9°C | 12 mm | 62% | 1.6 m/s | 3.4 |
| 2022 | 24.4°C | 17.4°C | 10.3°C | 26.9°C | 7.5°C | 5 mm | 66% | 1.4 m/s | 4 |
| 2021 | 23.6°C | 16.8°C | 9.9°C | 26.6°C | 4.4°C | 9 mm | 62% | 1.5 m/s | 3.4 |
| 2020 | 24.8°C | 17.5°C | 10.1°C | 29.7°C | 3.5°C | 8 mm | 55% | 1.4 m/s | 3.7 |
| 2019 ❄️ | 21.1°C | 14.9°C | 8.8°C | 25.0°C | 1.3°C | 13 mm | 77% | 1.5 m/s | 3.5 |
| 2018 | 25.1°C | 16.6°C | 8.0°C | 27.0°C | 3.4°C | 0 mm | 45% | 1.4 m/s | 4.1 |
| 2017 | 27.3°C | 19.4°C | 11.4°C | 30.0°C | 8.8°C | 0 mm | 33% | 1.5 m/s | 3.7 |
| 2016 | 27.1°C | 18.8°C | 10.5°C | 29.2°C | 6.6°C | 0 mm | 44% | 1.4 m/s | 4.3 |
| 2015 | 27.4°C | 18.7°C | 10.0°C | 32.3°C | 5.4°C | 1 mm | 32% | 1.5 m/s | 4.3 |
| 2014 | 24.6°C | 16.8°C | 9.1°C | 29.9°C | 3.1°C | 45 mm | 46% | 1.7 m/s | 4 |
| 2013 | 25.4°C | 17.9°C | 10.4°C | 28.2°C | 7.8°C | 11 mm | 58% | 1.5 m/s | 3.9 |
| 2012 | 27.3°C | 18.5°C | 9.8°C | 30.4°C | 5.7°C | 0 mm | 43% | 1.6 m/s | 4.3 |
| 2011 | 26.4°C | 17.9°C | 9.5°C | 29.8°C | 6.1°C | 2 mm | 53% | 1.6 m/s | 4.1 |
| 2010 | 24.1°C | 16.6°C | 9.1°C | 26.6°C | 7.0°C | 2 mm | 60% | 1.6 m/s | 4.2 |
| 2009 | 26.6°C | 19.1°C | 11.7°C | 29.4°C | 8.3°C | 14 mm | 60% | 1.5 m/s | 3.8 |
| 2008 🔥 | 28.2°C | 20.3°C | 12.4°C | 29.8°C | 8.0°C | 0 mm | 49% | 1.4 m/s | 4 |
| 2007 | 26.9°C | 18.8°C | 10.7°C | 30.3°C | 7.3°C | 2 mm | 44% | 1.5 m/s | 4 |
| 2006 | 27.3°C | 19.3°C | 11.3°C | 30.2°C | 7.6°C | 0 mm | 48% | 1.5 m/s | 4 |
| 2005 | 27.1°C | 18.6°C | 10.1°C | 29.3°C | 7.6°C | 1 mm | 35% | 1.5 m/s | 4.3 |
| 2004 | 27.6°C | 19.4°C | 11.3°C | 29.5°C | 7.3°C | 1 mm | 40% | 1.5 m/s | 4.2 |
| 2003 | 26.2°C | 18.2°C | 10.2°C | 29.8°C | 4.8°C | 6 mm | 59% | 1.5 m/s | 4.2 |
| 2002 | 28.8°C | 20.1°C | 11.5°C | 31.7°C | 7.6°C | 4 mm | 35% | 1.6 m/s | 4.2 |
| 2001 | 28.5°C | 19.5°C | 10.5°C | 31.4°C | 6.9°C | 0 mm | 27% | 1.5 m/s | 4.4 |
| 2000 | 29.0°C | 19.9°C | 10.8°C | 31.3°C | 7.5°C | 2 mm | 18% | 1.6 m/s | 4.4 |
| 1999 | 26.5°C | 17.7°C | 8.8°C | 28.4°C | 5.8°C | 0 mm | 37% | 1.5 m/s | 4.5 |
| 1998 | 28.2°C | 19.3°C | 10.4°C | 31.9°C | 6.9°C | 0 mm | 28% | 1.4 m/s | 4.4 |
| 1997 🌧️ | 21.7°C | 15.9°C | 10.2°C | 25.2°C | 6.4°C | 57 mm | 78% | 1.7 m/s | 3.8 |
| 1996 | 25.8°C | 17.4°C | 9.1°C | 28.2°C | 4.5°C | 0 mm | 41% | 1.4 m/s | 4.6 |
| 1995 | 26.9°C | 19.0°C | 11.1°C | 29.6°C | 8.7°C | 11 mm | 45% | 1.8 m/s | 4.3 |
| 1994 | 27.0°C | 18.2°C | 9.3°C | 29.9°C | 4.1°C | 0 mm | 28% | 1.5 m/s | 4.5 |
| 1993 | 27.6°C | 18.5°C | 9.4°C | 30.6°C | 6.3°C | 1 mm | 32% | 1.5 m/s | 4.5 |
| 1992 | 26.4°C | 18.4°C | 10.3°C | 28.8°C | 7.2°C | 0 mm | 47% | 1.4 m/s | 4.5 |
| 1991 | 27.1°C | 18.7°C | 10.2°C | 30.0°C | 4.9°C | 4 mm | 36% | 1.7 m/s | 4.3 |
| 1990 | 25.3°C | 17.7°C | 10.1°C | 27.2°C | 4.5°C | 0 mm | 59% | 1.7 m/s | 4.4 |
| 1989 | 27.1°C | 18.3°C | 9.5°C | 29.5°C | 6.4°C | 6 mm | 29% | 1.7 m/s | 4.4 |
| 1988 | 28.2°C | 19.8°C | 11.4°C | 30.5°C | 7.3°C | 0 mm | 26% | 1.7 m/s | 4.4 |
| 1987 | 27.5°C | 18.6°C | 9.7°C | 31.7°C | 6.0°C | 12 mm | 38% | 1.5 m/s | 4.3 |
| 1986 | 26.5°C | 17.8°C | 9.0°C | 30.5°C | 5.1°C | 2 mm | 29% | 2 m/s | 4.5 |
| 1985 | 24.6°C | 17.6°C | 10.7°C | 27.6°C | 5.8°C | 0 mm | 60% | 1.5 m/s | 4.2 |
| 1984 | 27.9°C | 18.8°C | 9.6°C | 30.7°C | 6.3°C | 1 mm | 30% | 1.7 m/s | 4.5 |
| 1983 | 24.2°C | 16.7°C | 9.2°C | 27.4°C | 2.5°C | 1 mm | 57% | 1.7 m/s | — |
| 1982 | 26.2°C | 18.5°C | 10.7°C | 29.1°C | 5.7°C | 2 mm | 55% | 1.7 m/s | — |
| 1981 | 25.0°C | 17.0°C | 9.0°C | 27.8°C | 5.3°C | 16 mm | 57% | 1.7 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 26.2°C with lows near 10.1°C (mean 18.2°C), based on 45 years of NASA POWER data.
December averages 6 mm of rainfall in Guna, one of the drier months. The wettest on record was 57 mm in 1997.
The hottest December reached 32.3°C in 2015. The coldest dipped to 1.3°C in 2019.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have fallen by about 0.6°C — but days and nights have moved in opposite directions. Overnight lows rose from 9.8°C to 9.9°C while daytime highs eased from 25.6°C to 24.3°C, narrowing the gap between day and night.
December is one of the cooler months of the year in Guna and one of the drier months, so plan for around 26.2°C daytime highs and 10.1°C at night.
Not quite — December is the 2nd coolest month in Guna, averaging 18.2°C.
For December in Guna, pack light layers you can adjust through the day, with typical highs of 26.2°C and lows of 10.1°C.
Relative humidity in December averages 46% — relatively dry.
Average wind speed in December is 1.6 m/s. The windiest December on record averaged 2 m/s (1986).
The wettest December on record was 1997 with 57 mm. On average, December sees 6 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 Guna 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.
