Radar and Rain Gauge

About data gaps

Each gauge is checked for how much data it actually reported over the selected period. This filter hides stations that are missing more than the chosen share of readings, so the map isn't cluttered with unreliable or offline gauges.

Gaps are usually caused by temporary faults at the Environment Agency, Natural Resources Wales, or SEPA APIs, or by a gauge going offline — not by an absence of rainfall.

Choose Show all to see every gauge regardless of missing data, or tighten the threshold to only show the most reliable stations.