January is one of the cooler months of the year in Niwari, with average highs near 29.9°C and lows around 5.1°C (mean 17.5°C). It is one of the drier months, averaging 11 mm of rainfall and 46% relative humidity across the period.
January is one of the cooler months of the year in Niwari. Across 45 years of records, the warmest January in Niwari was 1990 — when the month averaged 21.3°C — while the coldest was 2020 at 14.2°C. Typical January days reach 29.9°C with nights near 5.1°C. The long-term trend is cooling, 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 | 17.5°C | 17.7°C | 18.9°C | 17.0°C | 16.0°C | -1.5°C |
| Avg High | 29.6°C | 30.5°C | 31.6°C | 29.2°C | 27.9°C | -1.7°C |
| Avg Low | 5.4°C | 4.9°C | 6.1°C | 4.8°C | 4.1°C | -1.3°C |
| Avg Rain | 19 mm | 7 mm | 6 mm | 12 mm | 16 mm | -3 mm |
January temperatures in Niwari have fallen by about 1°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 1.6°C (2023) to a record high of 34.3°C (1990).
Rainfall in January is one of the drier months, averaging 11 mm, with a wettest year of 64 mm.
A good time to visit Niwari
January is a good time to visit Niwari, with days averaging 29.9°C and nights around 5.1°C (mean 17.5°C, cooler than Niwari's yearly average) and low rainfall. February and November are marginally more temperate, but January still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 28.5°C | 5.5°C | 17.0°C | 6 mm | 62% | 1.3 m/s | 4.2 |
| 2024 | 28.4°C | 4.6°C | 16.5°C | 3 mm | 58% | 1.4 m/s | 3.2 |
| 2023 | 27.8°C | 1.6°C | 14.7°C | 4 mm | 63% | 1.3 m/s | 3.8 |
| 2022 | 27.2°C | 4.0°C | 15.6°C | 57 mm | 67% | 1.4 m/s | 3.5 |
| 2021 | 29.9°C | 6.1°C | 18.0°C | 3 mm | 42% | 1.5 m/s | 3.9 |
| 2020 ❄️ | 25.8°C | 2.7°C | 14.2°C | 21 mm | 72% | 1.5 m/s | 3.8 |
| 2019 | 32.0°C | 3.5°C | 17.7°C | 2 mm | 43% | 1.5 m/s | 4.2 |
| 2018 | 30.9°C | 6.9°C | 18.9°C | 0 mm | 25% | 1.4 m/s | 4.6 |
| 2017 | 31.7°C | 4.6°C | 18.1°C | 8 mm | 48% | 1.4 m/s | 3.9 |
| 2016 | 32.4°C | 4.9°C | 18.6°C | 10 mm | 36% | 1.4 m/s | 4.1 |
| 2015 | 25.7°C | 4.6°C | 15.1°C | 36 mm | 60% | 1.5 m/s | 3.3 |
| 2014 | 25.6°C | 6.1°C | 15.8°C | 36 mm | 67% | 1.4 m/s | 3.2 |
| 2013 | 30.7°C | 3.3°C | 17.0°C | 5 mm | 37% | 1.5 m/s | 4.4 |
| 2012 | 27.2°C | 4.7°C | 15.9°C | 19 mm | 59% | 1.5 m/s | 3.9 |
| 2011 | 27.1°C | 2.9°C | 15.0°C | 0 mm | 51% | 1.4 m/s | 4.6 |
| 2010 | 29.1°C | 6.2°C | 17.6°C | 3 mm | 45% | 1.4 m/s | 4.3 |
| 2009 | 31.9°C | 6.8°C | 19.3°C | 11 mm | 58% | 1.4 m/s | 3.9 |
| 2008 | 31.5°C | 5.1°C | 18.3°C | 0 mm | 29% | 1.5 m/s | 4.1 |
| 2007 | 33.5°C | 7.0°C | 20.2°C | 2 mm | 27% | 1.4 m/s | 4.3 |
| 2006 | 33.1°C | 7.4°C | 20.2°C | 0 mm | 26% | 1.5 m/s | 4.7 |
| 2005 | 27.6°C | 6.6°C | 17.1°C | 8 mm | 45% | 1.4 m/s | 3.8 |
| 2004 | 30.3°C | 6.6°C | 18.4°C | 20 mm | 59% | 1.5 m/s | 4 |
| 2003 | 32.0°C | 5.0°C | 18.5°C | 11 mm | 35% | 1.5 m/s | 4.2 |
| 2002 | 31.8°C | 6.8°C | 19.3°C | 4 mm | 37% | 1.5 m/s | 4.3 |
| 2001 | 33.1°C | 5.6°C | 19.4°C | 1 mm | 25% | 1.5 m/s | 4.4 |
| 2000 | 31.6°C | 4.0°C | 17.8°C | 1 mm | 30% | 1.7 m/s | 4.7 |
| 1999 | 31.4°C | 5.9°C | 18.6°C | 3 mm | 35% | 1.6 m/s | 4.7 |
| 1998 | 27.3°C | 4.5°C | 15.9°C | 1 mm | 55% | 1.3 m/s | 4.2 |
| 1997 | 27.7°C | 4.9°C | 16.3°C | 4 mm | 41% | 1.4 m/s | 4.3 |
| 1996 | 28.7°C | 4.2°C | 16.5°C | 25 mm | 53% | 1.5 m/s | 4.1 |
| 1995 | 27.6°C | 4.4°C | 16.0°C | 20 mm | 41% | 1.6 m/s | 4.4 |
| 1994 | 33.7°C | 5.8°C | 19.7°C | 13 mm | 46% | 1.5 m/s | 4.1 |
| 1993 | 29.8°C | 4.5°C | 17.1°C | 0 mm | 41% | 1.6 m/s | 4.7 |
| 1992 | 32.6°C | 4.0°C | 18.3°C | 1 mm | 33% | 1.6 m/s | 4.7 |
| 1991 | 31.6°C | 2.6°C | 17.1°C | 0 mm | 47% | 1.6 m/s | 4.8 |
| 1990 🔥 | 34.3°C | 8.3°C | 21.3°C | 1 mm | 27% | 1.7 m/s | 5 |
| 1989 | 32.3°C | 4.2°C | 18.2°C | 8 mm | 30% | 1.6 m/s | 4.8 |
| 1988 | 31.5°C | 6.6°C | 19.0°C | 7 mm | 32% | 1.3 m/s | 4.6 |
| 1987 | 29.8°C | 5.8°C | 17.8°C | 18 mm | 44% | 1.5 m/s | 4.4 |
| 1986 | 27.3°C | 3.9°C | 15.6°C | 9 mm | 62% | 1.5 m/s | 4.5 |
| 1985 | 30.1°C | 7.2°C | 18.6°C | 8 mm | 42% | 1.6 m/s | 4.6 |
| 1984 | 27.2°C | 5.4°C | 16.3°C | 31 mm | 59% | 1.5 m/s | 4.4 |
| 1983 | 28.6°C | 3.1°C | 15.8°C | 13 mm | 49% | 1.5 m/s | — |
| 1982 🌧️ | 30.1°C | 8.5°C | 19.3°C | 64 mm | 61% | 1.4 m/s | — |
| 1981 | 29.3°C | 4.3°C | 16.8°C | 13 mm | 54% | 1.4 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 29.9°C with lows near 5.1°C (mean 17.5°C), based on 45 years of NASA POWER data.
January averages 11 mm of rainfall in Niwari, one of the drier months. The wettest on record was 64 mm in 1982.
The hottest January reached 34.3°C in 1990. The coldest dipped to 1.6°C in 2023.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have fallen by about 1°C. Daytime highs moved from 29.1°C to 28.4°C and overnight lows from 5.7°C to 4.4°C over the same span.
January is one of the cooler months of the year in Niwari and one of the drier months, so plan for around 29.9°C daytime highs and 5.1°C at night.
Yes — January is the coldest month of the year in Niwari, averaging 17.5°C.
For January in Niwari, pack warm layers and a jacket for chilly mornings, with typical highs of 29.9°C and lows of 5.1°C.
Relative humidity in January averages 46% — relatively dry.
Average wind speed in January is 1.5 m/s. The windiest January on record averaged 1.7 m/s (1990).
The wettest January on record was 1982 with 64 mm. On average, January sees 11 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 Niwari 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.
