Coverage shows valid readings received; the reporting interval is unknown, so a percentage is unavailable. Gaps may understate rainfall and are not treated as dry weather.
Water fills show relative rainfall, not flood risk. Hourly cards use rainfall intensity; 24 hours uses recorded wet-day percentiles; longer totals use estimated seasonal pace for the elapsed period. Grey means there is insufficient coverage or history for a comparison.
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Selsey gets about 731 mm of rain a year on average (wettest month November, 89 mm; driest May, 42 mm). That is 37% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.3 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
Reference
2705SO
Source
Environment Agency
Coordinates
50.759531, -0.787028
County
West Sussex
Data from
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FloodRadar helper · beta