{"id":8225,"date":"2026-08-22T21:52:45","date_gmt":"2026-08-22T19:52:45","guid":{"rendered":"https:\/\/ustarch.sav.sk\/sk\/climate-data-help-us-understand-the-building-environment-relationship-bratislava-august-20-2026\/"},"modified":"2026-09-23T09:09:42","modified_gmt":"2026-09-23T07:09:42","slug":"climate-data-help-us-understand-the-building-environment-relationship-bratislava-august-20-2026","status":"publish","type":"post","link":"https:\/\/ustarch.sav.sk\/sk\/climate-data-help-us-understand-the-building-environment-relationship-bratislava-august-20-2026\/","title":{"rendered":"Climate data help us understand the building\u2013environment relationship – current data for Bratislava"},"content":{"rendered":"
\n
NASA POWER \u00b7 CURRENT CLIMATE DATA & TRENDS<\/div>\n

For understanding the building\u2013environment relationship, the article is anchored to the newest NASA POWER meteorological data rather than to the slowest parameter. Current temperature, relative humidity and 10 m wind describe the immediate outdoor boundary conditions relevant to materials, structures, thermophysics and optics. Global horizontal irradiation (GHI) is added to the current tables only when the POWER solar stream is also recent; otherwise it is omitted rather than presenting old solar data as current. Monthly and annual tables retain GHI only for periods where the solar series is sufficiently complete.<\/p>\n

The newest meteorological data provide a current picture of the outdoor environment acting on buildings and materials. Air temperature, relative humidity and 10 m wind are shown for the latest available day together with 7-day and 30-day averages so that a short fluctuation is not interpreted in isolation. These quantities are relevant to the Department of Materials and Structures for environmental loading and to the Department of Optics and Thermophysics for thermal and transport processes. The GHI solar stream currently lags behind the meteorological data, so it is deliberately omitted from the current section rather than presented as an old value. This keeps the article anchored to genuinely fresh data.<\/p>\n

Current conditions \u2013 August 20, 2026<\/h3>\n
\n\n\n\n\n\n\n\n
Quantity<\/th>\nLatest day<\/th>\nLatest 7 days<\/th>\nPrevious 7 days<\/th>\nLatest 30 days<\/th>\n<\/tr>\n<\/thead>\n
Air temperature<\/th>\n26.4 \u00b0C<\/td>\n24.9 \u00b0C<\/td>\n26.0 \u00b0C<\/td>\n26.3 \u00b0C<\/td>\n<\/tr>\n
Relative humidity<\/th>\n60.2 %<\/td>\n47.0 %<\/td>\n38.2 %<\/td>\n41.0 %<\/td>\n<\/tr>\n
10 m wind<\/th>\n2.1 m\/s<\/td>\n3.2 m\/s<\/td>\n3.5 m\/s<\/td>\n3.5 m\/s<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The daily series shows the individual conditions from which the short-term averages are formed. For building-envelope research, rapid changes in temperature, humidity and wind matter because they affect heat flow, drying, wetting and surface conditions. For optics and thermophysics, the same sequence provides current atmospheric context for the interaction between a building and its surroundings. GHI will appear in this daily table only when a sufficiently current solar series is available. The daily values are therefore read together with the 7- and 30-day context.<\/p>\n

Daily development over the latest 14 complete days<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Date<\/th>\nTemperature<\/th>\nRel. humidity<\/th>\nWind 10 m<\/th>\n<\/tr>\n<\/thead>\n
2026-08-07<\/th>\n27.0 \u00b0C<\/td>\n53.0 %<\/td>\n5.1 m\/s<\/td>\n<\/tr>\n
2026-08-08<\/th>\n25.7 \u00b0C<\/td>\n41.9 %<\/td>\n3.3 m\/s<\/td>\n<\/tr>\n
2026-08-09<\/th>\n26.2 \u00b0C<\/td>\n35.4 %<\/td>\n2.8 m\/s<\/td>\n<\/tr>\n
2026-08-10<\/th>\n29.3 \u00b0C<\/td>\n36.3 %<\/td>\n2.4 m\/s<\/td>\n<\/tr>\n
2026-08-11<\/th>\n27.5 \u00b0C<\/td>\n37.3 %<\/td>\n5.1 m\/s<\/td>\n<\/tr>\n
2026-08-12<\/th>\n23.3 \u00b0C<\/td>\n31.5 %<\/td>\n4.0 m\/s<\/td>\n<\/tr>\n
2026-08-13<\/th>\n23.3 \u00b0C<\/td>\n32.0 %<\/td>\n2.0 m\/s<\/td>\n<\/tr>\n
2026-08-14<\/th>\n24.3 \u00b0C<\/td>\n29.0 %<\/td>\n2.0 m\/s<\/td>\n<\/tr>\n
2026-08-15<\/th>\n26.9 \u00b0C<\/td>\n26.7 %<\/td>\n4.0 m\/s<\/td>\n<\/tr>\n
2026-08-16<\/th>\n28.0 \u00b0C<\/td>\n34.7 %<\/td>\n3.8 m\/s<\/td>\n<\/tr>\n
2026-08-17<\/th>\n24.6 \u00b0C<\/td>\n56.1 %<\/td>\n3.7 m\/s<\/td>\n<\/tr>\n
2026-08-18<\/th>\n19.8 \u00b0C<\/td>\n65.4 %<\/td>\n3.4 m\/s<\/td>\n<\/tr>\n
2026-08-19<\/th>\n24.2 \u00b0C<\/td>\n57.3 %<\/td>\n3.1 m\/s<\/td>\n<\/tr>\n
2026-08-20<\/th>\n26.4 \u00b0C<\/td>\n60.2 %<\/td>\n2.1 m\/s<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The monthly trend places the current conditions into a seasonal context. Mean temperature, humidity and wind across the latest 12 complete months show how outdoor boundary conditions evolve through the year, while HDD and CDD provide compact indicators of heating and cooling load. GHI is shown for a month only when that month contains a sufficiently complete solar series; incomplete sums are replaced by a dash. This is useful when material exposure, energy demand and solar forcing are compared between periods. The monthly series therefore complements the current days without presenting older or incomplete solar data as current.<\/p>\n

Monthly trend \u2013 latest 12 complete months<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Month<\/th>\nTemperature<\/th>\nRel. humidity<\/th>\nWind 10 m<\/th>\nGHI<\/th>\nHDD<\/th>\nCDD<\/th>\n<\/tr>\n<\/thead>\n
August 2025<\/th>\n22.8 \u00b0C<\/td>\n52.9 %<\/td>\n3.4 m\/s<\/td>\n169.1 kWh\/m\u00b2<\/td>\n2.0<\/td>\n57.1<\/td>\n<\/tr>\n
September 2025<\/th>\n18.5 \u00b0C<\/td>\n66.2 %<\/td>\n3.7 m\/s<\/td>\n106.2 kWh\/m\u00b2<\/td>\n41.4<\/td>\n3.4<\/td>\n<\/tr>\n
October 2025<\/th>\n10.9 \u00b0C<\/td>\n73.5 %<\/td>\n4.5 m\/s<\/td>\n67.1 kWh\/m\u00b2<\/td>\n221.1<\/td>\n0.0<\/td>\n<\/tr>\n
November 2025<\/th>\n4.9 \u00b0C<\/td>\n85.2 %<\/td>\n4.0 m\/s<\/td>\n34.7 kWh\/m\u00b2<\/td>\n392.9<\/td>\n0.0<\/td>\n<\/tr>\n
December 2025<\/th>\n2.0 \u00b0C<\/td>\n90.3 %<\/td>\n3.6 m\/s<\/td>\n21.7 kWh\/m\u00b2<\/td>\n495.9<\/td>\n0.0<\/td>\n<\/tr>\n
January 2026<\/th>\n-2.3 \u00b0C<\/td>\n88.5 %<\/td>\n3.9 m\/s<\/td>\n28.9 kWh\/m\u00b2<\/td>\n629.9<\/td>\n0.0<\/td>\n<\/tr>\n
February 2026<\/th>\n2.1 \u00b0C<\/td>\n89.2 %<\/td>\n4.4 m\/s<\/td>\n40.2 kWh\/m\u00b2<\/td>\n444.3<\/td>\n0.0<\/td>\n<\/tr>\n
March 2026<\/th>\n7.8 \u00b0C<\/td>\n75.1 %<\/td>\n4.6 m\/s<\/td>\n97.5 kWh\/m\u00b2<\/td>\n315.6<\/td>\n0.0<\/td>\n<\/tr>\n
April 2026<\/th>\n11.0 \u00b0C<\/td>\n63.2 %<\/td>\n4.5 m\/s<\/td>\n153.0 kWh\/m\u00b2<\/td>\n210.2<\/td>\n0.0<\/td>\n<\/tr>\n
May 2026<\/th>\n17.7 \u00b0C<\/td>\n56.8 %<\/td>\n4.4 m\/s<\/td>\n183.9 kWh\/m\u00b2<\/td>\n51.2<\/td>\n8.5<\/td>\n<\/tr>\n
June 2026<\/th>\n23.9 \u00b0C<\/td>\n53.4 %<\/td>\n3.6 m\/s<\/td>\n\u2013<\/td>\n5.4<\/td>\n94.9<\/td>\n<\/tr>\n
July 2026<\/th>\n24.5 \u00b0C<\/td>\n46.4 %<\/td>\n3.8 m\/s<\/td>\n\u2013<\/td>\n0.0<\/td>\n81.3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The annual trend provides a longer frame for judging whether current conditions are part of normal variability or a slower shift. Annual means of temperature, humidity and wind suppress short-term fluctuations, while HDD\/CDD allow heating and cooling loads to be compared between years. Annual GHI is reported only for sufficiently complete solar years so that missing months do not distort the trend. For the Department of Materials and Structures this helps characterize long-term exposure, while for the Department of Optics and Thermophysics it supports interpretation of the thermal and solar environment. It is a consistent data context rather than a substitute for local measurements or a formal climatological study.<\/p>\n

Annual trend \u2013 latest 10 complete years<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Year<\/th>\nTemperature<\/th>\nRel. humidity<\/th>\nWind 10 m<\/th>\nGHI<\/th>\nHDD<\/th>\nCDD<\/th>\n<\/tr>\n<\/thead>\n
2016<\/th>\n11.0 \u00b0C<\/td>\n75.3 %<\/td>\n4.1 m\/s<\/td>\n1 211.2 kWh\/m\u00b2<\/td>\n2 991.9<\/td>\n108.2<\/td>\n<\/tr>\n
2017<\/th>\n11.1 \u00b0C<\/td>\n72.2 %<\/td>\n4.4 m\/s<\/td>\n1 230.2 kWh\/m\u00b2<\/td>\n3 013.6<\/td>\n185.6<\/td>\n<\/tr>\n
2018<\/th>\n11.9 \u00b0C<\/td>\n75.1 %<\/td>\n4.0 m\/s<\/td>\n1 239.6 kWh\/m\u00b2<\/td>\n2 771.2<\/td>\n156.4<\/td>\n<\/tr>\n
2019<\/th>\n12.1 \u00b0C<\/td>\n72.5 %<\/td>\n4.3 m\/s<\/td>\n1 222.7 kWh\/m\u00b2<\/td>\n2 684.0<\/td>\n198.5<\/td>\n<\/tr>\n
2020<\/th>\n11.3 \u00b0C<\/td>\n75.1 %<\/td>\n4.2 m\/s<\/td>\n1 236.4 kWh\/m\u00b2<\/td>\n2 825.1<\/td>\n95.4<\/td>\n<\/tr>\n
2021<\/th>\n10.7 \u00b0C<\/td>\n75.0 %<\/td>\n4.1 m\/s<\/td>\n1 248.3 kWh\/m\u00b2<\/td>\n3 151.9<\/td>\n163.3<\/td>\n<\/tr>\n
2022<\/th>\n12.0 \u00b0C<\/td>\n71.2 %<\/td>\n4.0 m\/s<\/td>\n1 265.5 kWh\/m\u00b2<\/td>\n2 733.1<\/td>\n183.6<\/td>\n<\/tr>\n
2023<\/th>\n12.3 \u00b0C<\/td>\n74.8 %<\/td>\n4.1 m\/s<\/td>\n1 201.9 kWh\/m\u00b2<\/td>\n2 579.4<\/td>\n169.8<\/td>\n<\/tr>\n
2024<\/th>\n12.9 \u00b0C<\/td>\n75.0 %<\/td>\n4.2 m\/s<\/td>\n1 242.8 kWh\/m\u00b2<\/td>\n2 542.7<\/td>\n306.0<\/td>\n<\/tr>\n
2025<\/th>\n11.9 \u00b0C<\/td>\n71.5 %<\/td>\n4.0 m\/s<\/td>\n1 252.7 kWh\/m\u00b2<\/td>\n2 754.7<\/td>\n172.1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Solar data: <\/strong>The newest GHI available to this API request was 2026-05-31. Because it is not sufficiently current, it is not used in the current daily section; monthly and annual trends show it only for complete periods.<\/p>\n

Source:<\/strong> NASA POWER<\/a>.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

For understanding the building\u2013environment relationship, the article is anchored to the newest NASA POWER meteorological data rather than to the slowest parameter. Current temperature, relative humidity and 10 m wind describe the immediate outdoor boundary conditions relevant to materials, structures, thermophysics and optics. Global horizontal irradiation (GHI) is added to the current tables only when the POWER solar stream is also recent; otherwise it is omitted rather than presenting old solar data as current. Monthly and annual tables retain GHI only for periods where the solar series is sufficiently complete.<\/p>\n","protected":false},"author":4,"featured_media":8285,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[215],"tags":[],"class_list":["post-8225","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-old"],"_links":{"self":[{"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/posts\/8225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/comments?post=8225"}],"version-history":[{"count":2,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/posts\/8225\/revisions"}],"predecessor-version":[{"id":8338,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/posts\/8225\/revisions\/8338"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/media\/8285"}],"wp:attachment":[{"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/media?parent=8225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/categories?post=8225"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/tags?post=8225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}