Air temperature, hot days, tropical nights and icing days - Cities in Osaka
Osaka: Air temperature, hot days, tropical nights and icing days - Cities was 2.35 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Osaka, 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 Osaka is 2.35 Degrees celsius, measured in 2025. That is the highest value across all 45 years on record.
Compared with earlier readings it is up 44.8% on the previous year and up 474.5% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Osaka peaked at 2.35 Degrees celsius in 2025 and was at its lowest, -1.1 Degrees celsius, in 1981.
Osaka ranks 334th of 1314 groups on this measure, 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 Osaka, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -1.1 Degrees celsius | — |
| 1982 | -0.5587 Degrees celsius | -49.3% |
| 1983 | -0.307 Degrees celsius | -45.1% |
| 1984 | -1.01 Degrees celsius | +227.9% |
| 1985 | -0.1238 Degrees celsius | -87.7% |
| 1986 | -0.7553 Degrees celsius | +510.2% |
| 1987 | 0.0053 Degrees celsius | -100.7% |
| 1988 | -0.7564 Degrees celsius | -14488.3% |
| 1989 | -0.104 Degrees celsius | -86.3% |
| 1990 | 0.6423 Degrees celsius | -717.8% |
| 1991 | 0.1035 Degrees celsius | -83.9% |
| 1992 | -0.1686 Degrees celsius | -262.9% |
| 1993 | -0.588 Degrees celsius | +248.7% |
| 1994 | 0.6427 Degrees celsius | -209.3% |
| 1995 | -0.4004 Degrees celsius | -162.3% |
| 1996 | -0.4907 Degrees celsius | +22.5% |
| 1997 | -0.0167 Degrees celsius | -96.6% |
| 1998 | 1.04 Degrees celsius | -6334.8% |
| 1999 | 0.2334 Degrees celsius | -77.6% |
| 2000 | 0.2325 Degrees celsius | -0.4% |
| 2001 | -0.0029 Degrees celsius | -101.2% |
| 2002 | 0.3139 Degrees celsius | -11008.5% |
| 2003 | -0.0974 Degrees celsius | -131.0% |
| 2004 | 0.9206 Degrees celsius | -1045.0% |
| 2005 | 0.0798 Degrees celsius | -91.3% |
| 2006 | 0.1768 Degrees celsius | +121.7% |
| 2007 | 0.7583 Degrees celsius | +328.8% |
| 2008 | 0.335 Degrees celsius | -55.8% |
| 2009 | 0.344 Degrees celsius | +2.7% |
| 2010 | 0.6475 Degrees celsius | +88.2% |
| 2011 | 0.092 Degrees celsius | -85.8% |
| 2012 | -0.1518 Degrees celsius | -265.0% |
| 2013 | 0.4098 Degrees celsius | -370.0% |
| 2014 | 0.001 Degrees celsius | -99.8% |
| 2015 | 0.4084 Degrees celsius | +40546.2% |
| 2016 | 0.9327 Degrees celsius | +128.4% |
| 2017 | 0.0506 Degrees celsius | -94.6% |
| 2018 | 0.7231 Degrees celsius | +1329.7% |
| 2019 | 0.8654 Degrees celsius | +19.7% |
| 2020 | 0.9189 Degrees celsius | +6.2% |
| 2021 | 0.7436 Degrees celsius | -19.1% |
| 2022 | 0.6222 Degrees celsius | -16.3% |
| 2023 | 1.28 Degrees celsius | +105.4% |
| 2024 | 1.62 Degrees celsius | +26.8% |
| 2025 | 2.35 Degrees celsius | +44.8% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.5231 Degrees celsius | -1.1 Degrees celsius | 0.0053 Degrees celsius | 9 |
| 1990s | 0.1 Degrees celsius | -0.588 Degrees celsius | 1.04 Degrees celsius | 10 |
| 2000s | 0.3061 Degrees celsius | -0.0974 Degrees celsius | 0.9206 Degrees celsius | 10 |
| 2010s | 0.3979 Degrees celsius | -0.1518 Degrees celsius | 0.9327 Degrees celsius | 10 |
| 2020s | 1.25 Degrees celsius | 0.6222 Degrees celsius | 2.35 Degrees celsius | 6 |
More climate change data for Osaka
- Air temperature, hot days, tropical nights and icing days - Cities 16.18 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 16.89 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.8 Degrees celsius (2060)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.28 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 10.43 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 25.27 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 25.21 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 17.6 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 5.91 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 60.45 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Osaka?
- Air temperature, hot days, tropical nights and icing days - cities in Osaka was 2.35 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 Osaka?
- The highest recorded value was 2.35 Degrees celsius in 2025.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Osaka?
- The lowest recorded value was -1.1 Degrees celsius in 1981.
- How does Osaka rank for air temperature, hot days, tropical nights and icing days - cities?
- Osaka ranks 334th out of 1314 groups with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Osaka?
- Over the last ten years it is up 474.5%. The long-run trend across the full record is volatile.
- Where does this Osaka 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