Air temperature, hot days, tropical nights and icing days - Cities in Istanbul
Istanbul: Air temperature, hot days, tropical nights and icing days - Cities was -1.02 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Istanbul, 1981–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.
Analysis
In 2025, air temperature, hot days, tropical nights and icing days - cities in Istanbul stood at -1.02 Degrees celsius.
The figure is down 152.3% on the previous year and down 234.1% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Istanbul peaked at 1.95 Degrees celsius in 2024 and was at its lowest, -1.06 Degrees celsius, in 1997.
That places Istanbul 1001st out of 1314 groups with data for 2025, putting it in the bottom quarter.
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 Istanbul, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -0.1871 Degrees celsius | — |
| 1982 | -0.4676 Degrees celsius | +149.9% |
| 1983 | -0.3697 Degrees celsius | -20.9% |
| 1984 | -0.0626 Degrees celsius | -83.1% |
| 1985 | -0.459 Degrees celsius | +633.1% |
| 1986 | -0.0459 Degrees celsius | -90.0% |
| 1987 | -0.7637 Degrees celsius | +1562.4% |
| 1988 | -0.1468 Degrees celsius | -80.8% |
| 1989 | -0.0567 Degrees celsius | -61.4% |
| 1990 | 0.1354 Degrees celsius | -338.9% |
| 1991 | -0.779 Degrees celsius | -675.5% |
| 1992 | -0.7795 Degrees celsius | +0.1% |
| 1993 | -0.6643 Degrees celsius | -14.8% |
| 1994 | 0.7263 Degrees celsius | -209.3% |
| 1995 | -0.0165 Degrees celsius | -102.3% |
| 1996 | -0.5489 Degrees celsius | +3232.2% |
| 1997 | -1.06 Degrees celsius | +94.0% |
| 1998 | 0.1262 Degrees celsius | -111.9% |
| 1999 | 0.7982 Degrees celsius | +532.5% |
| 2000 | 0.0617 Degrees celsius | -92.3% |
| 2001 | 0.9005 Degrees celsius | +1359.2% |
| 2002 | 0.2882 Degrees celsius | -68.0% |
| 2003 | -0.5014 Degrees celsius | -274.0% |
| 2004 | 0.1119 Degrees celsius | -122.3% |
| 2005 | 0.0237 Degrees celsius | -78.8% |
| 2006 | 0.0316 Degrees celsius | +33.5% |
| 2007 | 0.9312 Degrees celsius | +2843.4% |
| 2008 | 0.7756 Degrees celsius | -16.7% |
| 2009 | 0.7486 Degrees celsius | -3.5% |
| 2010 | 1.25 Degrees celsius | +67.6% |
| 2011 | -0.444 Degrees celsius | -135.4% |
| 2012 | 1.08 Degrees celsius | -344.2% |
| 2013 | 0.9839 Degrees celsius | -9.2% |
| 2014 | 1.35 Degrees celsius | +37.1% |
| 2015 | 0.7618 Degrees celsius | -43.5% |
| 2016 | 1.1 Degrees celsius | +44.3% |
| 2017 | 0.2961 Degrees celsius | -73.1% |
| 2018 | 1.3 Degrees celsius | +339.1% |
| 2019 | 1.4 Degrees celsius | +7.7% |
| 2020 | 1.47 Degrees celsius | +5.1% |
| 2021 | 0.8629 Degrees celsius | -41.3% |
| 2022 | 0.7597 Degrees celsius | -12.0% |
| 2023 | 1.72 Degrees celsius | +126.1% |
| 2024 | 1.95 Degrees celsius | +13.6% |
| 2025 | -1.02 Degrees celsius | -152.3% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.2844 Degrees celsius | -0.7637 Degrees celsius | -0.0459 Degrees celsius | 9 |
| 1990s | -0.2067 Degrees celsius | -1.06 Degrees celsius | 0.7982 Degrees celsius | 10 |
| 2000s | 0.3372 Degrees celsius | -0.5014 Degrees celsius | 0.9312 Degrees celsius | 10 |
| 2010s | 0.9085 Degrees celsius | -0.444 Degrees celsius | 1.4 Degrees celsius | 10 |
| 2020s | 0.9569 Degrees celsius | -1.02 Degrees celsius | 1.95 Degrees celsius | 6 |
More climate change data for Istanbul
- Air temperature, hot days, tropical nights and icing days - Cities 13.12 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 16.72 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.89 Degrees celsius (2060)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.07 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 8.18 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 2.52 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 2.3 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 1.1 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 5.76 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 18.75 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Istanbul?
- Air temperature, hot days, tropical nights and icing days - cities in Istanbul was -1.02 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 Istanbul?
- The highest recorded value was 1.95 Degrees celsius in 2024.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Istanbul?
- The lowest recorded value was -1.06 Degrees celsius in 1997.
- How does Istanbul rank for air temperature, hot days, tropical nights and icing days - cities?
- Istanbul ranks 1001st out of 1314 groups with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Istanbul?
- Over the last ten years it is down 234.1%. The long-run trend across the full record is volatile.
- Where does this Istanbul 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