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  • Digital archive of the analyzes of the surface charts of 00 UTC and 12 UTC, held in IM and IPMA Weather Forecast Center since October 2015. In the surface analysis charts, the isobars are filled up every 5 hPa, the high pressure centers (A) and the low pressure centers (B). Frontal surfaces, crest lines, valley lines, lines of instability and convergence are represented according to the standards established by the WMO. This compilation is in digital format (pdf) with a total of 1094 charts.

  • Köppen Climate Classification Chart of Portugal mainland for the 1971-2000 period indicating that, for most of the continental territory, climate is temperate, type C, verifying the subtype Cs (temperate climate with dry summers) and the following varieties "Csa": temperate climate with hot, dry summers in the interior regions of Douro valley (part of Bragança district), as well as in the south regions of the Montejunto-Estrela mountain system (except on the west coast of Alentejo and Algarve); "Csb": temperate climate with dry and mild summer in almost all regions of the North Montejunto-Estrela mountain system and in the west coast regions of Alentejo and Algarve. A small region of Alentejo, in the district of Beja, has Arid Climate - Type B Subtype BS (steppe climate), variety BSk (cold steppe climate of the mid-latitude).

  • Three-hourly forecast maps of accumulated precipitation in mm/3h in the Atlantic region, generated from ECMWF data twice a day, at 00UTC and 12UTC, with forecasts every 3 hours of the current day from 00h to the next 120 hours.

  • Annual Map of the number of days with maximum air temperature ≥25ºC (Number of days of summer) in the period 1971-2000, obtained by ordinary kriging from the surface observations network of climatological stations of the Institute of Meteorology and the pluviometric stations from INAG.

  • Map of the monthly maximum air temperature, mean values of the period 1971-2000, obtained by multivariate regression with altitude and distance to the coast, explanatory variables, and ordinary kriging of residues.

  • Map of the monthly minimum air temperature, mean values of the period 1971-2000, obtained by multivariate regression with altitude and distance to the coast, explanatory variables, and ordinary kriging of residues.

  • Map of the monthly mean air temperature, mean values of the period 1971-2000, obtained by multivariate regression with altitude and distance to the coast, explanatory variables, and ordinary kriging of residues.

  • Map of the monthly minimum air temperature, mean values of the period 1971-2000, obtained by multivariate regression with altitude and distance to the coast, explanatory variables, and ordinary kriging of residues.

  • Map of the monthly mean air temperature, mean values of the period 1971-2000, obtained by multivariate regression with altitude and distance to the coast, explanatory variables, and ordinary kriging of residues.

  • Annual Map of the number of days with precipitation ≤1mm (Number of days without precipitation) in the period 1971-2000, obtained by ordinary kriging from the surface observations network of climatological stations of the Institute of Meteorology and the pluviometric stations from INAG.