International Precipitation Conference 15
Coimbra, Portugal (and online everywhere)
15 - 17 June, 2026
Harnessing the data revolution for precipitation estimation and prediction across scales and regimes.
Full program is now available.
Registration is open, including for the open panels not requiring full IPC15 participation.
Information about the venue.
Late-break poster session. Submit before June 10!
The Conference
Harnessing the data revolution for precipitation estimation and prediction across scales and regimes.
15 - 17 June, 2026
In person in Coimbra and online everywhere!
The goal of IPC15 is to foster a dynamic and global platform for scientists, practitioners, students, and policymakers to address emerging challenges, explore innovative approaches and technologies, and discuss the future of precipitation science and applications. Building on the success of IPC14, the conference will include standard sessions, interactive discussions, and workshops aimed at developing practical skills for the next generation of researchers.
Set in Coimbra, home to one of the world’s oldest universities, IPC15 offers a unique blend of rich heritage and modern innovation, providing an inspiring venue for global collaboration.
Panel: Private Sector
IPC15 free and open event (in person and remote)
June 16, 09.30 (WEST)
Join leading experts from Tomorrow.io (Ethan Nelson), DevelopmentSeed (Olaf Veerman), Weather Stream (Michael Marques), OWL (Pedro Resende), and other key players in the discussion on the future of precipitation science, technology, and open data.
Open and free to all, including non-IPC15 participants.
Panel: Data to Policy
IPC15 free and open event (in person and remote)
June 17, 09.30 (WEST)
Join leading experts including Dr. Pierre Kirstetter (UO/NOAA) Dr. Burke Griggs (Washburn Univeristy School of Law), Dr. Alfredo Dias (Vice-rector, Univ. of Coimbra), Bruno Carvalho (Weather Stream), José Mendes (Coimbra Metropolitan Region), and others for a timely discussion moderated by Carolina Sá (Portuguese Space Agency) on the challenges and opportunities of turning precipitation and climate data into effective policy, operational decisions, and public-good outcomes.
Open and free to all, including non-IPC15 participants.
ICP15 Data School
IPC15 free and open event (in person only)
June 17, 15.30 (WEST)
Learn from Dr. Pierre Kirstetter, (Univeristy of Oklahoma/NOAA) and Dr. Daniel Watters (Univeristy of Oklahoma) in a hands-on training on ground validation of precipitation retrievals, uncertainty quantification and more.
Open and free to all, including non-IPC15 participants.
Limited to 10 seats.
IPC15 pre-conference
Europe Workshop
June 1st, 2026
This free virtual workshop welcomes all participants who wish to learn about European perspectives on precipitation science.
The workshop will include a range of invited talks (including on WIVERN, EarthCARE, model downscaling impacts, global drop size distributions, etc.) and discussion sessions with a focus on how European activities can help to address priority goals in precipitation science.
IPC15 pre-conference
Asia Workshop
June 2nd, 2026
This free virtual workshop welcomes all participants who wish to learn about European perspectives on precipitation science.
This workshop brings together experts in Asia to address critical challenges in Asian monsoon forecasting by exploring how satellite missions, ground-based observations, high-resolution NWP modeing, and AI frameworks can drive regional collaboration and operational forecasting improvements.
IPC15 Themes
The theme of IPC15 is "Harnessing the data revolution for precipitation estimation and prediction across scales and regimes," focusing on the following key areas:
June 15
Bridging models and observations, including through novel AI methodologies
June 16
Spatio-temporal variability, from microphysical processes to synoptic-scale patterns
The science team
June 17
Partnerships for addressing societal challenges and decision-making
Our team
IPC15 brings together the world’s leading voices in precipitation research and applications. Our organizing committee, thematic leads and featured speakers are renowned scientists, innovators, and policy influencers shaping the future of water, climate, and resilience. From satellite missions to ground-breaking fieldwork, meet the people driving progress.
Organizing Committee
Colorado State University
UC Irvine
University of Oklahoma
NASA /
Jet Propulsion Laboratory
University of Coimbra (local host)
Keynote speakers and panel leads
The list will continue to be updated.
IPC15 Key Dates
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Call for sessions: September 22, 2025 - December 10, 2025 (Closed).
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Volunteering opportunities announced: September 24, 2025
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Community sessions announced: January 21, 2025
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Abstract submission open: January 21, 2026 - February 28, 2026, Extended until March 15, 2026
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Abstract results & program: April 01, 2026
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Registration opens: April 01, 2026 (Open)
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Conference: 15 - 17 June, 2026
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South America Workshop: date to be announced.
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Africa Workshop: date to be announced.
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India Workshop: date to be announced.
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Europe Workshop: date to be announced.
About Coimbra
The heart of Portugal
Perched above the winding Mondego River, Coimbra is the heart of Portugal—where centuries of history, culture, and scientific legacy converge. Once the medieval capital of the country and now home to one of the world’s oldest universities, Coimbra blends the charm of cobbled streets and Roman ruins with the vitality of academic life, innovation, and leading business incubators. From the beauty of Coimbra's unique take on 'fado', sung in ancient cloisters to the hum of research centers shaping the future, Coimbra invites all who visit to experience a city where tradition meets discovery.
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Next key date:
Registration (April 01, 2026) (Open)
Harnessing the Data revolution.
Past IPC events
IPC14, National Weather Center, Norman, OK, USA
IPC12, UC Irvine, USA
IPC11, Wageningen, Netherlands
IPC10, Coimbra, Portugal
IPC9, Marnes le Vallée, France
IPC15 is hosted by the University of Coimbra at the Faculty of Sciences and Technology and the Earth Sciences Department.
