Air temperature, hot days, tropical nights and icing days - Cities in Wollongong
Wollongong: Air temperature, hot days, tropical nights and icing days - Cities was 1.86 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Wollongong, 1981–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.
Analysis
The most recent figure for air temperature, hot days, tropical nights and icing days - cities in Wollongong is 1.86 Degrees celsius, measured in 2025. That is the highest value across all 45 years on record.
The figure is up 76.2% on the previous year and up 468.2% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Wollongong peaked at 1.86 Degrees celsius in 2025 and was at its lowest, -0.7116 Degrees celsius, in 1992.
That places Wollongong 414th out of 1314 regions with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Air temperature, hot days, tropical nights and icing days - Cities in Wollongong, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | 0.1161 Degrees celsius | — |
| 1982 | 0.0206 Degrees celsius | -82.3% |
| 1983 | 0.0185 Degrees celsius | -10.2% |
| 1984 | -0.5954 Degrees celsius | -3318.2% |
| 1985 | -0.4313 Degrees celsius | -27.6% |
| 1986 | -0.4949 Degrees celsius | +14.7% |
| 1987 | -0.2607 Degrees celsius | -47.3% |
| 1988 | 0.3941 Degrees celsius | -251.2% |
| 1989 | -0.2192 Degrees celsius | -155.6% |
| 1990 | -0.0796 Degrees celsius | -63.7% |
| 1991 | 0.2593 Degrees celsius | -425.6% |
| 1992 | -0.7116 Degrees celsius | -374.5% |
| 1993 | 0.0044 Degrees celsius | -100.6% |
| 1994 | -0.1368 Degrees celsius | -3190.6% |
| 1995 | -0.5994 Degrees celsius | +338.2% |
| 1996 | -0.5427 Degrees celsius | -9.5% |
| 1997 | 0.1977 Degrees celsius | -136.4% |
| 1998 | 0.511 Degrees celsius | +158.5% |
| 1999 | -0.1302 Degrees celsius | -125.5% |
| 2000 | -0.1462 Degrees celsius | +12.2% |
| 2001 | 0.1737 Degrees celsius | -218.8% |
| 2002 | 0.2846 Degrees celsius | +63.8% |
| 2003 | -0.0436 Degrees celsius | -115.3% |
| 2004 | 0.277 Degrees celsius | -735.3% |
| 2005 | 0.5054 Degrees celsius | +82.4% |
| 2006 | 0.3837 Degrees celsius | -24.1% |
| 2007 | 0.4565 Degrees celsius | +19.0% |
| 2008 | -0.2646 Degrees celsius | -158.0% |
| 2009 | 0.6528 Degrees celsius | -346.7% |
| 2010 | 0.4008 Degrees celsius | -38.6% |
| 2011 | 0.0692 Degrees celsius | -82.7% |
| 2012 | -0.1372 Degrees celsius | -298.1% |
| 2013 | 0.6133 Degrees celsius | -547.0% |
| 2014 | 0.5743 Degrees celsius | -6.4% |
| 2015 | 0.3282 Degrees celsius | -42.9% |
| 2016 | 0.8986 Degrees celsius | +173.8% |
| 2017 | 0.8725 Degrees celsius | -2.9% |
| 2018 | 0.6884 Degrees celsius | -21.1% |
| 2019 | 1.13 Degrees celsius | +63.5% |
| 2020 | 0.5113 Degrees celsius | -54.6% |
| 2021 | 0.0134 Degrees celsius | -97.4% |
| 2022 | 0.0306 Degrees celsius | +129.0% |
| 2023 | 0.8482 Degrees celsius | +2668.8% |
| 2024 | 1.06 Degrees celsius | +24.8% |
| 2025 | 1.86 Degrees celsius | +76.2% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.1614 Degrees celsius | -0.5954 Degrees celsius | 0.3941 Degrees celsius | 9 |
| 1990s | -0.1228 Degrees celsius | -0.7116 Degrees celsius | 0.511 Degrees celsius | 10 |
| 2000s | 0.2279 Degrees celsius | -0.2646 Degrees celsius | 0.6528 Degrees celsius | 10 |
| 2010s | 0.5434 Degrees celsius | -0.1372 Degrees celsius | 1.13 Degrees celsius | 10 |
| 2020s | 0.7211 Degrees celsius | 0.0134 Degrees celsius | 1.86 Degrees celsius | 6 |
More climate change data for Wollongong
- Air temperature, hot days, tropical nights and icing days - Cities 17.97 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 19.15 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 2.23 Degrees celsius (2060)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.04 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 3.19 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 2.96 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.09 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 3.37 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Wollongong?
- Air temperature, hot days, tropical nights and icing days - cities in Wollongong was 1.86 Degrees celsius in 2025, according to Organisation for Economic Co-operation and Development.
- What is the highest air temperature, hot days, tropical nights and icing days - cities recorded in Wollongong?
- The highest recorded value was 1.86 Degrees celsius in 2025.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Wollongong?
- The lowest recorded value was -0.7116 Degrees celsius in 1992.
- How does Wollongong rank for air temperature, hot days, tropical nights and icing days - cities?
- Wollongong ranks 414th out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Wollongong?
- Over the last ten years it is up 468.2%. The long-run trend across the full record is volatile.
- Where does this Wollongong data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Air temperature, hot days, tropical nights and icing days - Cities and FUAs — Change in air temperature at 2 meters from 1981–2010 period. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 45 observations, free to reuse under OECD Terms and Conditions (attribution required).
About this data
This dataset provides indicators of air temperature, hot days, tropical nights and icing days. Data sources and methodology Indicators are estimated using ERA5-Land data. Air temperature indicators correspond to the average annual air temperature at a height of 2 meters. Hot days correspond to the number of days when the maximum temperature exceeds 35°C. Tropical nights correspond to the days when the minimum temperature is above 20°C, and icing days to the number of days when the maximum temperature is below 0°C. ERA5-Land is used as it provides harmonised, globally consistent coverage at fine spatial resolution (0.1 degree), enabling the production of comparable subnational indicators also where national meteorological data are not available at the required scale. These estimates may differ from official subnational climate statistics due to differences in methodological approaches, such as the use of reanalysis based top down modelling versus in situ observations, along with variations in input data sources, spatial resolution, and the models and algorithms used to generate temperature estimates. Defining FUAs and cities The OECD, in cooperation with the EU, has developed a harmonised definition of functional urban areas (FUAs) to capture the economic and functional reach of cities based on daily commuting patterns (OECD, 2012). FUAs consist of: A city – defined by urban centres in the degree of urbanisation, adapted to the closest local administrative units to define a city. A commuting zone – including all local areas where at least 15% of employed residents work in the city. The delineation process includes: Assigning municipalities surrounded by a single FUA to that FUA. Excluding non-contiguous municipalities. The correspondence table between SAUs and FUAs/cities is available in parquet and csv format. The definition identifies 1 272 FUAs and 1 269 cities in all OECD member countries except Costa Rica and three accession countries. Cite this dataset OECD Regions, cities and local areas database (Air temperature, hot days, tropical nights and icing days - FUAs), http://oe.cd/geostats Further information OECD Local Data Portal OECD Regions and Cities at a Glance For questions and/or comments, please email CitiesStat@oecd.org