🔎 Weather for a date or period
Actual day-by-day weather for the selected period (ERA5). Up to 1 year.
📆 On this day before
Data for previous years is being prepared.
Climate normals in Ion are still being collected (ERA5) — they will appear after the next daily cycle.
📊
Daily records and archive in Ion are being collected (ERA5) — they will appear after the next cycle.
📒 For school and home
Weather diary
ready-made observation table for a month — for school
Weather for the month
August calendar: forecast + climate normal
FAQ about the weather archive in Ion ❓
What was the weather in Ion on a specific date?
Pick a date or range in the form above — we show actual day-by-day weather (ERA5 reanalysis, up to a year back). For today’s date in past years see “On this day before”.
Since what year is the weather archive in Ion kept?
Climate normals and records come from the ERA5 reanalysis. Actual day-by-day weather is available for the last year.
Climate and weather archive in Ion
Monthly climate normals in Ion (average day and night temperatures, precipitation) are computed from the ERA5 reanalysis. The observation archive accrues from launch. Data: Open-Meteo (ERA5).