Air temperature, hot days, tropical nights and icing days - Cities in Viana do Castelo
Viana do Castelo: Air temperature, hot days, tropical nights and icing days - Cities was 2.81 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Viana do Castelo, 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 Viana do Castelo is 2.81 Degrees celsius, measured in 2025. That is the highest value across all 45 years on record.
That represents a change of up 201.4% on the previous year and up 558.8% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Viana do Castelo peaked at 2.81 Degrees celsius in 2025 and was at its lowest, -0.6663 Degrees celsius, in 1986.
Viana do Castelo ranks 260th of 1314 regions on this measure, in the top 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 Viana do Castelo, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -0.0781 Degrees celsius | — |
| 1982 | -0.1778 Degrees celsius | +127.7% |
| 1983 | -0.3223 Degrees celsius | +81.2% |
| 1984 | -0.5188 Degrees celsius | +61.0% |
| 1985 | -0.131 Degrees celsius | -74.8% |
| 1986 | -0.6663 Degrees celsius | +408.7% |
| 1987 | 0.3119 Degrees celsius | -146.8% |
| 1988 | -0.1607 Degrees celsius | -151.5% |
| 1989 | 0.9203 Degrees celsius | -672.7% |
| 1990 | 0.5821 Degrees celsius | -36.8% |
| 1991 | -0.1644 Degrees celsius | -128.2% |
| 1992 | -0.3975 Degrees celsius | +141.8% |
| 1993 | -0.5102 Degrees celsius | +28.4% |
| 1994 | -0.2066 Degrees celsius | -59.5% |
| 1995 | 0.8629 Degrees celsius | -517.7% |
| 1996 | -0.2091 Degrees celsius | -124.2% |
| 1997 | 0.8662 Degrees celsius | -514.2% |
| 1998 | 0.2448 Degrees celsius | -71.7% |
| 1999 | -0.2518 Degrees celsius | -202.9% |
| 2000 | -0.2982 Degrees celsius | +18.4% |
| 2001 | -0.1518 Degrees celsius | -49.1% |
| 2002 | 0.0542 Degrees celsius | -135.7% |
| 2003 | 0.2407 Degrees celsius | +343.9% |
| 2004 | -0.0461 Degrees celsius | -119.1% |
| 2005 | -0.0483 Degrees celsius | +4.9% |
| 2006 | 0.5966 Degrees celsius | -1335.1% |
| 2007 | -0.1509 Degrees celsius | -125.3% |
| 2008 | -0.3914 Degrees celsius | +159.4% |
| 2009 | 0.0695 Degrees celsius | -117.8% |
| 2010 | 0.132 Degrees celsius | +89.8% |
| 2011 | 0.6328 Degrees celsius | +379.4% |
| 2012 | -0.2824 Degrees celsius | -144.6% |
| 2013 | 0.0611 Degrees celsius | -121.6% |
| 2014 | 0.3577 Degrees celsius | +485.7% |
| 2015 | 0.4258 Degrees celsius | +19.1% |
| 2016 | 0.3739 Degrees celsius | -12.2% |
| 2017 | 0.5489 Degrees celsius | +46.8% |
| 2018 | 0.2918 Degrees celsius | -46.8% |
| 2019 | 0.0277 Degrees celsius | -90.5% |
| 2020 | 0.7107 Degrees celsius | +2463.1% |
| 2021 | 0.2158 Degrees celsius | -69.6% |
| 2022 | 1 Degrees celsius | +365.5% |
| 2023 | 0.9142 Degrees celsius | -9.0% |
| 2024 | 0.9307 Degrees celsius | +1.8% |
| 2025 | 2.81 Degrees celsius | +201.4% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.0914 Degrees celsius | -0.6663 Degrees celsius | 0.9203 Degrees celsius | 9 |
| 1990s | 0.0816 Degrees celsius | -0.5102 Degrees celsius | 0.8662 Degrees celsius | 10 |
| 2000s | -0.0126 Degrees celsius | -0.3914 Degrees celsius | 0.5966 Degrees celsius | 10 |
| 2010s | 0.2569 Degrees celsius | -0.2824 Degrees celsius | 0.6328 Degrees celsius | 10 |
| 2020s | 1.1 Degrees celsius | 0.2158 Degrees celsius | 2.81 Degrees celsius | 6 |
More climate change data for Viana do Castelo
- Air temperature, hot days, tropical nights and icing days - Cities 16.97 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 16.94 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 2.43 Degrees celsius (2060)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.01 Tonnes of CO2-equivalent (2024)
- 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 0.22 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.22 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0.04 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.11 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 0.47 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Viana do Castelo?
- Air temperature, hot days, tropical nights and icing days - cities in Viana do Castelo was 2.81 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 Viana do Castelo?
- The highest recorded value was 2.81 Degrees celsius in 2025.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Viana do Castelo?
- The lowest recorded value was -0.6663 Degrees celsius in 1986.
- How does Viana do Castelo rank for air temperature, hot days, tropical nights and icing days - cities?
- Viana do Castelo ranks 260th out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Viana do Castelo?
- Over the last ten years it is up 558.8%. The long-run trend across the full record is volatile.
- Where does this Viana do Castelo 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