Air temperature, hot days, tropical nights and icing days - Cities in Reykjavík
Reykjavík: Air temperature, hot days, tropical nights and icing days - Cities was 0.1082 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Reykjavík, 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 Reykjavík stood at 0.1082 Degrees celsius.
The figure is up 138.0% on the previous year and up 355.8% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Reykjavík peaked at 1.4 Degrees celsius in 2016 and was at its lowest, -1.39 Degrees celsius, in 1981.
Reykjavík ranks 748th of 1314 regions 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 Reykjavík, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -1.39 Degrees celsius | — |
| 1982 | -0.8955 Degrees celsius | -35.6% |
| 1983 | -1.39 Degrees celsius | +54.8% |
| 1984 | -0.7709 Degrees celsius | -44.4% |
| 1985 | -0.392 Degrees celsius | -49.1% |
| 1986 | -0.6436 Degrees celsius | +64.2% |
| 1987 | 0.9923 Degrees celsius | -254.2% |
| 1988 | -0.6945 Degrees celsius | -170.0% |
| 1989 | -0.7343 Degrees celsius | +5.7% |
| 1990 | -0.3649 Degrees celsius | -50.3% |
| 1991 | 0.5483 Degrees celsius | -250.3% |
| 1992 | -0.3944 Degrees celsius | -171.9% |
| 1993 | -0.1647 Degrees celsius | -58.2% |
| 1994 | -0.8316 Degrees celsius | +404.9% |
| 1995 | -1.04 Degrees celsius | +25.6% |
| 1996 | 0.0684 Degrees celsius | -106.5% |
| 1997 | 0.4042 Degrees celsius | +491.1% |
| 1998 | -0.1781 Degrees celsius | -144.1% |
| 1999 | -0.5107 Degrees celsius | +186.8% |
| 2000 | -0.3354 Degrees celsius | -34.3% |
| 2001 | 0.4884 Degrees celsius | -245.6% |
| 2002 | 0.6536 Degrees celsius | +33.8% |
| 2003 | 1.38 Degrees celsius | +111.1% |
| 2004 | 1.18 Degrees celsius | -14.7% |
| 2005 | 0.7292 Degrees celsius | -38.1% |
| 2006 | 0.9574 Degrees celsius | +31.3% |
| 2007 | 0.8856 Degrees celsius | -7.5% |
| 2008 | 0.3966 Degrees celsius | -55.2% |
| 2009 | 0.7041 Degrees celsius | +77.5% |
| 2010 | 1.35 Degrees celsius | +91.2% |
| 2011 | 0.5225 Degrees celsius | -61.2% |
| 2012 | 1.02 Degrees celsius | +95.1% |
| 2013 | 0.3984 Degrees celsius | -60.9% |
| 2014 | 1.02 Degrees celsius | +155.8% |
| 2015 | -0.0423 Degrees celsius | -104.1% |
| 2016 | 1.4 Degrees celsius | -3412.4% |
| 2017 | 0.9106 Degrees celsius | -35.0% |
| 2018 | 0.5404 Degrees celsius | -40.7% |
| 2019 | 1.15 Degrees celsius | +112.1% |
| 2020 | 0.4854 Degrees celsius | -57.6% |
| 2021 | 0.9561 Degrees celsius | +97.0% |
| 2022 | 0.5792 Degrees celsius | -39.4% |
| 2023 | 0.4066 Degrees celsius | -29.8% |
| 2024 | -0.2844 Degrees celsius | -170.0% |
| 2025 | 0.1082 Degrees celsius | -138.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.6572 Degrees celsius | -1.39 Degrees celsius | 0.9923 Degrees celsius | 9 |
| 1990s | -0.2468 Degrees celsius | -1.04 Degrees celsius | 0.5483 Degrees celsius | 10 |
| 2000s | 0.7037 Degrees celsius | -0.3354 Degrees celsius | 1.38 Degrees celsius | 10 |
| 2010s | 0.8262 Degrees celsius | -0.0423 Degrees celsius | 1.4 Degrees celsius | 10 |
| 2020s | 0.3752 Degrees celsius | -0.2844 Degrees celsius | 0.9561 Degrees celsius | 6 |
More climate change data for Reykjavík
- Air temperature, hot days, tropical nights and icing days - Cities 2.7 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 4.61 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.02 Degrees celsius (2060)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.03 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.15 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.85 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.85 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 0.06 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 1.18 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Reykjavík?
- Air temperature, hot days, tropical nights and icing days - cities in Reykjavík was 0.1082 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 Reykjavík?
- The highest recorded value was 1.4 Degrees celsius in 2016.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Reykjavík?
- The lowest recorded value was -1.39 Degrees celsius in 1981.
- How does Reykjavík rank for air temperature, hot days, tropical nights and icing days - cities?
- Reykjavík ranks 748th out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Reykjavík?
- Over the last ten years it is up 355.8%. The long-run trend across the full record is volatile.
- Where does this Reykjavík 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