Does Brockenhurst flood?

What the Environment Agency's rivers-and-sea flood-risk data says about Brockenhurst

Ordnance Survey places 21 postcodes in Brockenhurst in the Environment Agency's rivers-and-sea flood-risk dataset (Risk of Flooding from Rivers and Sea). Each postcode is counted once, under the worst band any of its properties reaches; together they hold 158 properties in the EA dataset's likelihood bands.

This dataset covers flooding from rivers and the sea only — one of five flood sources. Surface water, groundwater, sewers and reservoirs are assessed separately, so a postcode missing from it is not proof that a place cannot flood. The band describes the land around properties (allowing for defences), not any single address and not today's conditions.

Rivers and live river levels near Brockenhurst

Environment Agency gauges within 10 km of Brockenhurst watch Lymington, Beaulieu River.

• Meerut Road
  Lymington · 0.3 km away 0.09 m
  normal range · 25 min ago
• Brockenhurst
  Lymington · 2.0 km away 0.45 m
  normal range · 25 min ago
• Lymington River level Tidal
  Lymington · 7.0 km away -0.66 mAOD
  rises and falls with the tide · 25 min ago
• Lymington Tidal
  Lymington · 7.0 km away -0.43 mAOD
  rises and falls with the tide · 25 min ago
• Hartford Tidal
  Beaulieu River · 8.1 km away 1.38 mAOD
  rises and falls with the tide · 25 min ago
• Beaulieu Tidal Structure
  Tide · 8.8 km away -0.10 mAOD
  rises and falls with the tide · 25 min ago

Distances are from the middle of Brockenhurst's at-risk postcodes. Tidal and structure gauges are shown as readings only — the tide and sluice gates move them, not floods. A gauge with no recent reading shows no level.

Flood warning areas near Brockenhurst

8 Environment Agency flood warning areas lie within 10 km of Brockenhurst. The EA has issued 153 flood warnings and alerts for them since 2006, most recently on 18 Feb 2026.

• River Lymington including Brockenhurst
  53 warnings and alerts since 2006, latest Feb 2026 1.1 km
• Brockenhurst and Boldre on the River Lymington, and The Weirs through Angel Valley
  9 warnings and alerts since 2006, latest Feb 2026 1.6 km
• Lymington on the River Lymington
  no warning on record since 2006 6.2 km
• Beaulieu River from Hartford Bridge to Beaulieu
  8 warnings and alerts since 2006, latest Oct 2023 8.4 km
• Danes Stream from Ashley (New Milton) to Milford on Sea
  1 warning or alert since 2006, latest Jan 2026 9.1 km
• Danes Stream from Ashley to Milford on Sea
  17 warnings and alerts since 2006, latest Feb 2026 9.1 km
• Coast at Lymington and Keyhaven including Pitts Deep and Sowley
  3 warnings and alerts since 2006, latest Nov 2016 9.8 km
• Coast from Milford-on-Sea to Lymington
  62 warnings and alerts since 2006, latest Dec 2025 9.8 km

Recorded floods near Brockenhurst

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Brockenhurst, most recent first. Records, not floods: no outline on the record is not evidence a place has not flooded. See them on the map →

• 1 Nov 2000 — Winter 2000/01g_Avon Water_Sway(1)
• 1 Nov 2000 — Winter 2000/01g_Avon Water_Sway(2) River
• 1 Nov 2000 — Winter 2000/01g_River Lymington_Brockenhurst River
• 30 Dec 1993 — 30/12/93_Portmore Stream_Portmore(1) Ephemeral watercourse
• 1 Feb 1990 — Feb 1990_Lymington River_Brockenhurst(1) Main river
• 1 Feb 1990 — Feb 1990_Lymington River_Brockenhurst(2) Main river
• 22 Oct 1966 — 22/10/1966_River Lymington_Brockenhurst Main river
• 1 Jan 1900 — General(S24)_Lymington River Main river

Rainfall near Brockenhurst

Brockenhurst gets about 920 mm of rain a year on average (wettest month November, 116 mm; driest May, 51 mm). That is 21% 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 from the place centre.

The nearest rain gauge, Rainfall station (1.3 km away), recorded 9.2 mm in the last 24 hours and 111.0 mm in the last 7 days (latest reading 25 min ago).

At-risk postcodes in Brockenhurst

Every postcode Ordnance Survey places in Brockenhurst that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.

High likelihood (15)

Medium likelihood (4)

Low likelihood (2)

Postcode districts

Sources

FloodRadar summarises public flood data. It is not a flood-risk survey of any property, and it does not replace official GOV.UK flood warnings or the GOV.UK long-term flood risk service.