Comparing weather has never been easier. With wettervergleich.de you can retrieve historical weather data for any location in the world and compare two time periods side by side, free, no sign-up required, directly in your browser.
Step one: enter a location. Type the name of a city or place in the search field. The autocomplete suggests matching locations, select the one you want. The tool supports thousands of locations worldwide, from Berlin to Buenos Aires.
Step two: choose your time periods. You define two periods to compare. This can be the same month in two different years (for example July 2023 vs. July 2024), or two completely different periods (summer holiday 2024 vs. autumn 2023). Time periods can span from a single day to several years.
Step three: click "Load data" and read the results. The tool shows five metrics side by side: average temperature, maximum temperature, sunshine hours, precipitation, and maximum wind speed. Below that you'll find interactive charts showing the progression of both periods over time. One handy detail: the page URL contains all parameters, you can simply copy and share it, or save it as a bookmark.
Three typical use cases: holiday planning, compare June and August in your destination city to find the better travel window. Checking climate change yourself, compare the same month from two different decades in your hometown. Planning sports events, check which weekend historically had better weather in past years. The city pages for popular destinations (for example /en/compare/berlin or /en/compare/munich) also offer prepared standard comparisons you can explore straight away.
Weather data comes from Open-Meteo, an open climate database with records going back to 1940, licensed under CC BY 4.0. The archive draws on weather station data and meteorological reanalysis datasets, covering virtually every inhabited location on Earth.
The tool below shows an example: Berlin summer 2024 vs. summer 2025. Try it yourself, enter your location and compare the time periods that interest you.