Free · Available on iPhone

You remember summers
differently.

The heat waves that used to be exceptional now feel routine. The winters barely freeze. Climio shows you the data behind that feeling — for your city, from 1981 to today.

Not a weather forecast. A climate history. Your city.

Download on the App Store
40+Years of Data
Cities Worldwide
4Data Types
FreeOn iPhone
App Preview

See it in action

Real data, real cities, beautiful charts — in your pocket.

Everything in one app

Temperature, air, rain and sun —
for any city on Earth.

Backed by NASA and Copernicus. Four powerful data types. 40 years of real records.

Temperature 🌡

40 Years of Temperature History

From 1981 to today, for any city on Earth. See exactly how many degrees your city has shifted over the decades. Year-over-year charts reveal how each season is changing over time.

Air Quality 🌫

PM2.5, PM10, NO₂ & O₃

WHO guideline thresholds always visible. See whether your city is getting cleaner or more polluted — year by year.

Comparison 🏙

Compare Any Two Cities

Temperature, air quality, rainfall and sunshine side by side. Decide based on data, not assumptions.

Rain & Sunshine 🌧

Precipitation & Sunshine Hours

Historical rainfall trends to understand drought and flood patterns over decades. Annual sunshine hours to compare climates beyond temperature alone.

Seasons 📅

Seasonal Insights

Spring, Summer, Autumn and Winter trends side by side. See which season is warming fastest in your city.

Export 📄

PDF Export

Export a complete climate report with all charts — ready to share, present or save.

Trusted Data

Built on the world's most
rigorous climate databases.

No estimates. No guesses. Just 40+ years of real records from the institutions scientists trust.

🛰

NASA Power API

Daily temperature and sunshine records going back to 1981 — used by researchers and institutions worldwide.

🌍

Copernicus CAMS

Air quality data — PM2.5, PM10, NO₂ and O₃ — from Europe's Copernicus Atmosphere Monitoring Service via Open-Meteo (CC BY 4.0).

For Everyone

Whatever brings you here.

Climio is for anyone who wants to understand climate — personally, locally, and visually.

🎓

Students & Researchers

Real data, real sources. Citable NASA and Copernicus records, exportable as PDF.

🏠

City Choosers

Thinking of moving? Compare any two cities on temperature, air quality, rainfall and sunshine.

🌍

Climate Curious

Feel like summers are getting hotter? Now you can know for sure — down to the decimal.

✈️

Travelers

Plan smarter. Know the actual climate history of anywhere you're going, not just the forecast.

Free on iPhone

Your city's climate.
40 years of it. Free.

Download Climio and see exactly what's happening to your city — backed by 40 years of real data.

Download on the App Store
Contact & Support

Have a question or suggestion?

deltatemperature.app@gmail.com