Home 9 Tool 9 Irrigation Calendar (Calendário de Rega)

Irrigation Calendar (Calendário de Rega)

Rationale of use

Portugal's Irrigation Calendar tool was designed for monitoring irrigation areas, contributing to performance and compliance evaluation. Is a decision making aiding tool for crop irrigation.


The tool collects information on irrigation systems to evaluate efficiency, analyse crop water requirements, and assess legal constraints. It is supported by two other tools that feed information on agrometeorological conditions (collected from meteorological sensors) and irrigation to assess the crop's water status according to FAO's methology. This allows the farmer to know when and how much water he has to apply to his crops. The information on irrigation (timing, amount, irrigation system and efficiency) is also entered in the management tool, allowing the monitoring of water use.

Types of outputs

Outputs include detailed information about crop water requirements, irrigation timing, legal constraints, and consumption data, all of which can be accessed online.

Relevant CAP objective


Tool name

Irrigation Calendar (Calendário de Rega)


Monitoring and data collection tools


Performance monitoring



Author or owner

Author: COTR - Operational Centre of Irrigation Technology

Implemented by

Relevant tasks

CSP Monitoring: Performance Review
CSP Monitoring: Beneficiaries' Compliance

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