Open data
The numbers on ReasonStay's pages, as free downloads. Each file is our compilation of open data — use it with credit to ReasonStay and the original source, under CC BY 4.0. Rebuilt every time the site is.
Want a ready-made chart instead of a spreadsheet? Free climate charts — one per city, with embed code for your site.
Monthly climate normals for European cities
Ten-year average daily high and low temperature, days with at least 1 mm of rain and precipitation per month, for the city-centre coordinates of every city on ReasonStay.
Source: ERA5 reanalysis via Open-Meteo (CC BY 4.0). 1,800 rows. Download climate-normals.csv
Tourist season by month for European city regions
Each month's share of the year's nights spent at tourist accommodation in the city's NUTS 2 region (country where no region data), as an index where 1.0 is an average month.
Source: Eurostat tour_occ_nin2m / tour_occ_nim. 1,656 rows. Download crowd-index.csv
Hot days, tropical nights and sea temperature by month
Average days per year with a high of 30 °C or more and 35 °C or more, nights staying at 20 °C or above, and mean sea-surface temperature, per city and month.
Source: ERA5 reanalysis and Open-Meteo Marine (CC BY 4.0). 1,800 rows. Download heat-and-sea.csv
How the numbers are made: methodology. Crowd indexes describe each region's season (1.0 = an average month), not how crowded one city is compared with another.