Storm Darragh caused the most extensive damage to Ireland’s electricity infrastructure in a decade and widespread mobile network outages over the weekend.
Today, Ookla shares its analysis of the impact on mobile operators in Ireland and Speedtest Intelligence® data revealing a marked and sustained decline in download and upload speeds, as well as increased latency and jitter, across all operators nationally.
Ireland’s three Mobile Network Operators (Eir, Three and Vodafone) all suffered, with median download speeds on Saturday recorded at nearly 70% lower than the 7-day average preceding the storm. Around 40% of all samples collected by Speedtest failed to meet the minimum thresholds across 4G (5 Mbps download, 1 Mbps upload) and 5G (25 Mbps download, 3 Mbps upload) on Saturday.

This performance analysis is based on the national picture, highlighting that the impact was significant enough to lower the overall country-wide performance profile. A closer examination of the worst-affected areas along the western seaboard revealed even more pronounced declines in performance outcomes in the aftermath of the storm.
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