Environment Agency065WAF106Solent and South Downs

River Dun: flood history since 2013

The Environment Agency has issued 19 flood alerts for River Dun since 24 Dec 2013, most often in January; the busiest year was 2024 (5).

Flood alerts only

The flood area

Flood area: River Dun
Code: 065WAF106
Environment Agency area: Solent and South Downs
County: Hampshire, Wiltshire
River or sea: River Dun
First in the history: 24 Dec 2013
Latest in the history file: 18 Feb 2026
Current status: check-for-flooding.service.gov.uk (the Environment Agency's live page)

Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.

2024 was the busiest year for River Dun

Flood alerts, flood warnings and severe flood warnings (updates not counted), by year. 2026 runs to the end of June.

The numbers

Year	Alerts	Warnings	Severe
2026	2	0	0
2025	3	0	0
2024	5	0	0
2023	2	0	0
2020	2	0	0
2019	1	0	0
2016	1	0	0
2014	2	0	0
2013	1	0	0

Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.

Most often in January

All alerts and warnings since 2013 by month.

Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.

Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.