Environment Agency065WAF424Solent and South Downs

Lower Arun: flood history since 2012

The Environment Agency has issued 58 flood alerts for Lower Arun since 12 Jun 2012, most often in January; the busiest year was 2016 (11).

Flood alerts only

The flood area

Flood area: Lower Arun
Code: 065WAF424
Environment Agency area: Solent and South Downs
County: West Sussex
River or sea: Arun
First in the history: 12 Jun 2012
Latest in the history file: 26 Jan 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.

2016 was the busiest year for Lower Arun

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	4	0	0
2024	5	0	0
2023	6	0	0
2022	3	0	0
2021	2	0	0
2020	5	0	0
2019	3	0	0
2017	1	0	0
2016	11	0	0
2015	2	0	0
2014	10	0	0
2013	2	0	0
2012	2	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 2012 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.