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Caribbean Rainfall IDF Curves Knowledge Hub

Building A
Climate-Resilient Caribbean

Rainfall Intensity-Duration-Frequency (IDF) curves are essential tools that show how much rain is likely to occur over a given period of time.

The development and availability of climate-informed rainfall IDF curves for all Caribbean Development Bank (CDB) Borrowing Member Countries (BMCs) are critical to building climate resilience across the region.

These updated curves help engineers design stronger bridges, assist planners in creating safer communities, and allow policymakers to invest wisely in infrastructure that can withstand extreme weather events. By modernizing this data, we are protecting lives and securing a sustainable future for present and future generations of Caribbean citizens.

Objectives

1

Raising Awareness

Promoting the importance of updated, climate-informed rainfall IDF curves across all CDB BMCs.

2

Building Understanding

Educating stakeholders on what rainfall IDF curves are, how they are developed, and why they are essential for modern engineering.

3

Resilient Planning

Demonstrating how climate informed rainfall data supports safer and more resilient infrastructure design.

4

Reducing Risk

Highlighting the long-term economic and social benefits of using rainfall IDF curves to strengthen preparedness and build resilience.

5

Policy Integration

Encouraging the adoption of updated rainfall IDF curves
into national policy, planning, and building codes.

Public Awareness Materials

Explore the communication products designed to raise awareness, build understanding, encourage engagement, and support informed decision-making across the region.


Explainer Video


An explainer video introducing rainfall IDF curves and their role in supporting resilient infrastructure design and informed decision-making across the Caribbean.

Fact Sheet

An overview of the project’s key technical outputs and the practical benefits for communities, designed to raise awareness and encourage stakeholder buy-in.

Factsheet Preview
View

Radio PSA

A 1-minute message showing how climate-informed rainfall IDF curves help communities reduce flooding and build resilient infrastructure.

Audio Production
Download Audio File

One-Pagers

Audience specific guides tailored for different regional stakeholders:

Social Media Gallery

Access our digital outreach content, organized around key themes, designed to build awareness and encourage engagement through short-form, visual content.

Theme 1: What are Rainfall IDF Curves?

Theme 2: Why the Caribbean Needs Updated Curves

Theme 3: Rainfall IDF Curves in Infrastructure Design

Theme 4: Economic and Social Benefits of Rainfall IDF Curves

Ready to Plan for the Future?

Access the updated Rainfall IDF Curves for your country.

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Funded by the Caribbean Development Bank (CDB) and implemented by the Caribbean Institute for Meteorology and Hydrology (CIMH).

© 2026 Caribbean Development Bank & Caribbean Institute for Meteorology and Hydrology. All rights reserved.