Mostly not, with surface water as the only honest caveat. None of the village sits in a river-flood zone. None of it sits in a sea-flood zone. The climate-adjusted zones don't reach the village either. The risk that does exist is surface water, on a minority of postcodes, and that is the part most postcode-lookup tools quietly skim over.
River and tidal flooding are the categories that property buyers usually mean when they ask about flood risk, because they are the ones the official zone maps draw with hard lines and the ones that insurance underwriters key off most heavily. On both fronts the village is clean. Zero percent of Tangmere's land sits inside the river-flood zones, and zero percent sits inside the sea-flood zones. There is no recorded historic-flooding footprint across the village either. That is unusual for a south-coast village and reflects its position on the coastal plain rather than alongside a named watercourse.
Surface water is where the real story sits, and it is the kind of flood risk that does not get the dashboard graphic in the buyer's report. About one in twenty postcodes here carry some high surface-water flood risk, about one in nine carry medium risk, and roughly a quarter carry some level of low risk. Those are postcode-level categorisations, not whole-village ones. The medium and low bands mean the rain has to fall in a particular way for the water to back up; the high band means a heavy summer downpour is enough. The streets most exposed will be the ones on lower-lying ground and the ones with run-off paths through their gardens. A site visit in the rain is worth more than any colour-coded map.
The forward look does not change the verdict. The climate-adjusted river-flood zones, which model where the lines move under reasonable warming scenarios, still place none of the village inside their footprint. That is unusual for a south-coast settlement and it reflects the village's position on the coastal plain rather than on a river course. The surface-water risk is the part that will move with rainfall pattern shifts, but that will move everywhere in southern England, not just here.
For insurance, the practical implication is that buildings cover should price in the normal range rather than at the flood-risk premium that coastal villages and river-corridor postcodes attract. Buyers on the high surface-water postcodes should still order a search and check the wording rather than assume the headline zone clears them. A surface-water claim history on a property can affect cover even when the official zone map is clean, which is the gap the headline category tends to miss.
Average overall, then, but on the safe side of average. The river and the sea are not the problem here, and the climate maps have not reached the village either. Surface water is the only thing to read carefully, and on most postcodes it does not read very loud.