Month-by-month weather, crowd levels, and price windows for 148 destinations. Real historical averages from Open-Meteo (1990–2024), flight-price trends from Aviasales, and first-hand notes from my own trips.
6+ years testing European routes · Updated April 2026
How these guides are built: Every city page pulls 34 years of temperature and rainfall data from Open-Meteo, cross-references flight-price seasonality from the Aviasales API, and flags the months I’d personally recommend after visiting. No generic “spring is nice” fluff — specific numbers, specific months, specific warnings about things most guides skip.