OpenWeather
Challenge 2025
Following the success of last year’s OpenWeather Challenge, we’re excited to launch a new edition for 2025, more ambitious and even more impactful.
The OpenWeather Challenge 2025 invites you to develop data-driven projects using weather and environmental data. Whether you're creating an app, conducting research, or building tools to address climate or health challenges, this is your chance to make a real-world impact.
From air quality modelling to AI-powered forecasting and resilient infrastructure design, your project can help shape a more resilient and informed future.
In Collaboration With
Imperial College London is a global leading university, known for excellence in science, engineering, and environmental research. Imperial is a key academic partner in this year’s challenge.
🌦️ Join the OpenWeather Community Hub
We're creating a new space for everyone who works with or simply enjoys OpenWeather data - whether you're a student, hobbyist, developer, or researcher.
Our official Discord community is a place to:
- Share your projects built with OpenWeather data and APIs
- Get help and advice from other users and the OpenWeather team
- Talk about products, ideas, and creative ways to use weather data
- Keep up with announcements, events, and community challenges
Our main goal is simple - to support your projects, help you make the most of our data, and guide you in using OpenWeather products effectively.
Whether you're building an app, analyzing climate trends, or learning how to integrate our APIs, we're here to make things easier, more collaborative, and more inspiring.
This community is also part of our wider mission with the Weather Foundation UK - bringing together people who care about open data, learning, andinnovation in weather and climate science.
Together, we want to make weather data more accessible and help anyone interested turn their ideas into real projects.
Lead Partners from Imperial College London
Professor Christopher Pain
Professor of Computational Physics
Head, Applied Modelling and Computation Group (AMCG), Imperial College London
Prof. Pain leads the largest research group in Earth Science and Engineering at Imperial. His work focuses on numerical modelling, reduced-order systems, and AI applications in environmental science. He has published over 200 papers and received Imperial’s Research Excellence Award.
Dr. Claire Heaney
AI in Science Research Fellow
Imperial-X & Department of Earth Science and Engineering, Imperial College London
Dr. Heaney is an AI in Science Research Fellow at Imperial-X and the Department of Earth Science and Engineering. Her work focuses on reduced-order modelling, machine learning for scientific applications, and urban and environmental flows. She is a co-author of one of Wiley’s top-cited articles, introducing an autoencoder-based model for neutron diffusion.
Philip Challinor
Chartered Architect & Chartered Surveyor, UK
Philip Challinor is a Chartered Architect and Surveyor with expertise in AI and machine learning for the built environment. His work focuses on digital innovation in real estate and sustainable development. He is a Past President of FIABCI UK and has served on several RICS boards, including the Sustainability Commission.
Boyang Chen
Research Associate
Applied Modelling and Computation Group, Imperial College London
Boyang is a Research Associate at the Applied Modelling and Computation Group (AMCG). He is currently working on the GP4Streets (DIY Greening Prescription for Climate Adaptation in Urban Streets), which is an innovative research project funded by UK Research and Innovation (UKRI) under the Maximising UK Adaptation to Climate Change initiative.
Claire Dilliway
Programme Manager
Imperial College London
Claire joined Imperial as a Programme Manager at Imperial College London in 2019 and is currently managing the AI4URBAN-HEALTH Network which seeks to develop AI-based solutions to improve urban health. She has managed a series of major interdisciplinary grants including AI-Respire which used AI to develop predictions of personal health response, INHALE which investigated the impact of air pollution on health response through a clinical study, air sampling campaigns and modelling, and COVAIR on airborne SARS-CoV-2 transmission. Previously, Claire spent 11 years at the Overseas Development Institute as Programme Operations and Business Manager.
Supporting Partners
Dr. Linbing Wang
University of Georgia
Professor Prashant Kumar
University of Surrey
Professor Rosie McEachan
Born in Bradford, University of Bradford
Dr. Romit Maulik
Pennsylvania State University
IMS Ahmedabad Chapter
Indian Meteorological Society – Ahmedabad Branch
How to Participate
About the Challenge:
- We encourage you to think beyond traditional solutions and use technology - from AI to IoT and beyond - to apply weather data in original, unexpected ways.
- We welcome all types of projects, ranging from purely research/analytical endeavours to apps and programs.
- You are free to use any programming language for your backend; however, please ensure that your code is transparent and accessible through a public repository, such as GitHub.
- Please ensure all submissions to be made in English and represent your original work and ideas.
- After submission, your project will be available for further use by the OpenWeather community.
OpenWeather Challenge
Submission Form
Please, fill in the required spaces belowJudging criteria
Originality:
Unique use of weather or environmental data.
Impact:
Relevance to real-world challenges.
Presentation:
Clarity and engagement of the submission.
Documentation:
Technical completeness and transparency.
Judging panel
Philip Challinor
Chartered Architect & Chartered Surveyor, UK
Imperial College London
Professor Christopher Pain
Professor of Computational Physics
Imperial College London
Dr. Olga Buskin
Head of People, Culture and Sustainability
OpenWeather
Dan Hart
Chief Meteorologist
OpenWeather
Timeline
- October 13, 2025Challenge Opens
- November 21, 2025Submission Deadline
- November 2025Judging & Review
- December 16, 2025 at Imperial College LondonWinners Announced
1st place
£ 1 000
A certificate of achievement, a feature about the project in a blog article on OpenWeather website, internship opportunity with OpenWeather.
2nd place
£ 500
A certificate of achievement, social media recognition.
3rd place
£ 300
And a certificate of achievement.
We will announce the winners on 16 December, with the awards ceremony taking place at ICL’s Department of Earth Science and Engineering
More Details