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<p>The German polarimetric C-band weather radar Poldirad (Polarization Diversity Radar) was deployed for the international field campaign EUREC<span class="inline-formula">⁴</span>A (Elucidating the role of clouds–circulation coupling in climate) on the island of Barbados where it was operated from February until August 2020. Focus of the installation was monitoring clouds and precipitation in the trade wind region east of Barbados. Different scanning modes were used with a temporal sequence of 5 <span class="inline-formula">min</span> and a maximum range of 375 <span class="inline-formula">km</span>. In addition to built-in quality control performed by the radar signal processor, it was found that the copoloar correlation coefficient <span class="inline-formula"><i>ρ</i>_HV</span> can be used to remove contamination of radar products by sea clutter. Radar images were available in real time for all campaign participants and aboard research aircraft. Examples of mesoscale precipitation patterns, rain rate accumulation, diurnal cycle, and vertical distribution are given to show the potential of the radar measurements for further studies on the life cycle of precipitating shallow cumulus clouds and other related aspects. Poldirad data from the EUREC<span class="inline-formula">⁴</span>A campaign are available on the EUREC<span class="inline-formula">⁴</span>A AERIS database: <a href="https://doi.org/10.25326/218">https://doi.org/10.25326/218</a> <span class="cit" id="xref_paren.1">(<a href="#bib1.bibx12">Hagen et al.</a>, <a href="#bib1.bibx12">2021</a><a href="#bib1.bibx12">a</a>)</span> for raw data and <a href="https://doi.org/10.25326/217">https://doi.org/10.25326/217</a> <span class="cit" id="xref_paren.2">(<a href="#bib1.bibx13">Hagen et al.</a>, <a href="#bib1.bibx13">2021</a><a href="#bib1.bibx13">b</a>)</span> for gridded data.</p>