WeatherYear
Predict the Weather
365 Days Ahead
Planning a wedding, vacation, or event next year? WeatherYear combines historical climate data from the previous year with AI to give you a realistic forecast for any specific date on the calendar.
Try "Valletta", "Kyoto", or "Cape Town"
Your Perfect Weather
Is Waiting For You.
Don't settle for "good enough." Define your ideal temperature and sunshine level, and we'll scan over 500 global destinations to find your match.
Plan with Confidence
Don't let weather uncertainty ruin your plans. Our full-year calendar view lets you check the most probable weather for your special dates months in advance.
Historical Authenticity
Traditional apps only predict 14 days out. We analyze historical statistical data from the previous year to simulate realistic weather patterns for every day of the year.
Live Updates
As the date approaches, our long-term statistical models seamlessly merge with live 16-day forecasts to provide the most accurate real-time outlook.
The Science Behind WeatherYear
Most weather applications rely exclusively on numerical weather prediction (NWP) models. While these models are incredibly accurate for the next 48 hours, their reliability decays rapidly after 10 days. Predicting weather for a specific date a year in advance is mathematically impossible using traditional physics-based models due to the chaotic nature of the atmosphere.
WeatherYear takes a different approach. We utilize Historical Analog Simulation. By processing decades of climate data from the Open-Meteo historical archive, we identify the most statistically probable weather patterns for any given location and date.
Our Hybrid Model
We combine 16-day live high-resolution forecasts with our year-long historical simulation. As your event date approaches, the data seamlessly transitions from statistical probability to real-time meteorological observation.
Expert-Grade Use Cases
- 1
Event & Wedding Planning
Determine the historically driest week for outdoor ceremonies in any global destination.
- 2
Travel & Vacation Booking
Avoid monsoon seasons or heatwaves by checking the 365-day climate cycle before you book flights.
- 3
Film & Photography
Locate periods with the best natural light and lowest cloud cover probabilities for on-location shoots.
Frequently Asked Questions
How accurate is a 365-day forecast?
It is important to understand that no one can predict the exact weather 12 months in advance. Our 365-day forecasts are "Statistical Simulations" based on historical climate trends. They show you what is most likely to happen based on years of previous data, rather than a definitive guarantee.
What data sources do you use?
We use data from the European Centre for Medium-Range Weather Forecasts (ECMWF), NASA, and NOAA, processed through the Open-Meteo API. This includes both high-resolution forecast models and extensive historical archives.
Does the forecast change?
Yes. Our data is updated multiple times per day. As the current date moves forward, new historical data is incorporated, and as you get within 16 days of your target date, the simulation is replaced by live, real-time meteorological forecasts.
Can I use this for safety-critical decisions?
No. WeatherYear is a planning tool designed for general convenience and logistical preparation. For safety-critical decisions (like aviation or severe storm warnings), always consult your official national meteorological service.