WeatherJourney.com

Weather history & climate trends for any city — since 1940

WeatherJourney puts 80+ years of daily weather on one page: today's temperature next to the long-term normal, all-time records, the warming trend, and rainfall patterns for thousands of cities worldwide. Free, ad‑light, historical context for any place on the map.

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🇫🇷ParisFrance

Today21° / 16°
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Live temperatures across our cities

Each dot is a city we cover — the largest by population plus national and regional capitals. Colour shows the current temperature. Tap any dot to open its full weather history.

Why WeatherJourney

Global headlines don't tell you what's happening on your street.

Most climate coverage talks in global averages. We do the opposite: we drill into the daily record for the city you actually live in, so you can see your own warming trend, your own record highs, and whether today is genuinely strange or just another summer day.

What's unusual right now

From a snapshot of the world's largest cities updated each hour. Today's mean temperature compared with each city's long-term average for the same calendar date (ERA5 climatology, 1940 onward). Last 30 days uses each city's rolling daily-mean vs its monthly normal. Not a global ranking.

Right nowlive

Running warm

Running cool

Last 30 days vs normalrolling 30-day mean

Warmer than usual

Cooler than usual

How the climate has shifted in the world

Average across 27 cities with full ERA5 coverage — 1940–1970 baseline vs the last decade (2016–2025).

+1.4°Cwarmer than the 1940–1970 baseline
Annual mean temperature
18.7°C→20.1°C
Days above 30°C per year
86 days→118 days+32
Frost days per year
32 days→24 days−7
Tropical nights (≥20°C) per year
140 nights→159 nights+19

Warmest year in the record so far: 2024.

Browse by region

How we choose cities

We cover every city with roughly 100,000+ residents plus every national and regional capital. Each one has a full daily record from January 1940 to today, drawn from the ECMWF ERA5 reanalysis.

What's in the database

Built from the ECMWF ERA5 reanalysis (1940–present) and continuously updated from Open-Meteo.

Cities ingested
27
Countries
171
Daily records
852,120
Date range
1940–2026

Frequently asked questions

What is weather history and why does it matter?
Weather history is the day-by-day record of past temperature, rainfall, wind and sunshine for a place. It gives today's weather context: is this heatwave normal for late June here, or is it an outlier? Without history, a forecast number is just a number.
How far back does WeatherJourney go?
Every city has a continuous daily record from January 1940 to today — over 80 years of weather. That's enough to compute stable long-term climate normals, identify all-time records, and measure how much a city has warmed.
Where does the data come from?
Historical values come from ECMWF ERA5 — the European Centre for Medium-Range Weather Forecasts' global reanalysis, available through the Copernicus Climate Data Store. Today's live conditions and the 7-day forecast come from Open-Meteo. The city catalog is from GeoNames.
Is today's weather actually unusual?
On every city page we compute today's mean against the long-term normal for that exact calendar date. The 'Today' card shows the difference in plain language — 'much warmer', 'about normal', 'cooler' — so you can read it at a glance.
How can I see climate change in a city?
Open a city page and scroll to the climate stripes and the hot-days/frost-days trends. Each stripe is one year coloured by its anomaly from the long-term mean. The trend lines show how many hot days, cold nights, and tropical nights the city now gets versus the 1940–1970 baseline.
Is WeatherJourney free to use?
Yes. The site is free for personal and commercial use, supported by lightweight ads. Underlying data is released under the Copernicus License (ERA5), the Open-Meteo terms, and CC BY 4.0 (GeoNames).
Are these station observations or modelled data?
ERA5 is a global reanalysis: it blends millions of historical observations from weather stations, satellites, ships and buoys with a physics-based atmospheric model on a ~30 km grid. The result is a consistent, gap-free record — a good choice for climate context, but use your national weather service for official, station-level observations.