Cardiff Indoor

Temperature and humidity within a dwelling are affected by outdoor climate conditions, and as outdoor temperature and humidity increase so too does the threat of indoor issues such as overheating and poor air quality. Results for each climate data grid within the town or city boundary is presented for maximum indoor temperature and relative humidity along with exceedance ratio of a 26°C overheating threshold and 60% relative humidity indoor air quality threshold for a six-week period between 22^nd July-31^st August. Results represent the average year in the time period for the 50th percentile models out of the 12-model suite. Click on a grid to view the associated 95th percentile results. Time periods are 2030 (2021-2040) and 2070 (2061-2080).

Additional information is available here: Wales Housing Climate Analysis Additional Information

Accompanying maps in this series can be found here:

Climate Projections consisting of Daily Maximum Temperature, Annual Precipitation, Daily Relative Humidity and Daily Specific Humidity

Indoor Conditions results consisting of Indoor Air Quality and Overheating

Building Fabric degradation results consisting of Solar Insolation, Precipitation and Relative Humidity

Case Studies for four representative towns and cities illustrate results at a resolution of 2.2 km, giving insight into the variation that is projected geographically across each area:

Aberystwyth consisting of Climate, Indoor and Fabric

Cardiff consisting of Climate, Indoor and Fabric

Swansea consisting of Climate, Indoor and Fabric

Wrexham consisting of Climate, Indoor and Fabric

For a better understanding of the impact of summertime overheating on houses that have been highly insulated and suggestions on approaches to tackling them go to: Considering summertime overheating in highly insulated homes: factsheet | GOV.WALES

For a better understanding of the impact of summertime overheating on post 1985 properties (including older buildings converted into flats) and suggestions on approaches to tackling them go to: Considering summertime overheating in post 1985 properties (including older buildings converted into flats): factsheet | GOV.WALES

For a better understanding of the impact of summertime relative humidity in older properties and suggestions on approaches to tackling them go to: Considering summertime relative humidity in older properties: factsheet | GOV.WALES

For a better understanding of the maintenance, repair and adaptation priorities of older, traditional properties under a changing climate, go to: Considering repair, maintenance and adaptation priorities for older properties: factsheet | GOV.WALES