All rainfall gauges

Walderton

Walderton, West Sussex, PO18 9EA
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This is a historical EA Hydrology gauge and does not report live rainfall.

Yellow Yellow warning of rain

Heavy rain brings a high likelihood of moderate impacts from surface water flooding.

In force until 11pm Sat 24 Oct (UK time). Issued 9:05am Sat 24 Oct by the Met Office.

What to expect and what to do

What to expect

  • Spray and flooding on roads probably making journey times longer
  • Bus and train services probably affected with journey times taking longer
  • Some interruption to power supplies and other services likely
  • Flooding of a few homes and businesses is possible

What should I do?

Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary.

People cope better with power cuts when they have prepared for them in advance. It's easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items.

Check if your property could be at risk of flooding. If so, consider preparing a flood plan and an emergency flood kit.

Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.

What should I do? See the Met Office warnings and advice. Met Office Weather Warnings © Crown Copyright 2026

Historical gauge. Last daily total: 20 June 2026. See the nearest reporting rain gauge.
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Oct
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2026
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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.

Ground Wetness
Antecedent conditions based on recent rainfall
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DryNormalDampWetSaturated
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Recent gauge data is unavailable, so ground wetness cannot be estimated here. Antecedent Precipitation Index with exponential decay. Decay rate adjusted for transitional conditions (K=0.92).
24h Weather Forecast
Precipitation -12h / +12h
Rainfall → River Response
Detecting lag...
Shows how rainfall at this gauge translates to river level changes over time. The lag between peak rain and peak river helps predict downstream impact.
Events on this timeline About El Niño

Choose a layer to see recorded events alongside the chart.

Events in this view (0)
    How nearby rivers respond to rainfall here
    Estimated response characteristics based on distance and catchment
    Based on historical data analysis and proximity. This is not an official flood forecast or warning.
    What happened after similar rainfall?

    Explore recorded river changes and compare events after drier or wetter weeks.

    Comparisons use complete past observations, including events with little rise. Ground wetness is estimated from preceding rainfall.

    Recent Rainfall Events
    Detected storm events from continuous readings
    Historical Context
    Records, anomalies, and comparisons
    Nearby River Gauges
    Nearby Rain Gauges

    Loading the annual rainfall comparison…

    Monthly Overview
    Monthly rainfall totals with historical normal range

    Walderton gets about 978 mm of rain a year on average (wettest month November, 116 mm; driest May, 54 mm). That is 16% 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.

    Nearby storm overflows
    Water-company event-duration monitors within 3 km of this rain gauge
    Loading nearby overflows…

    Loading recent reported spill starts…
    Location

    Reference
    HYRAIN_b5ba58f630c1a2b9a6988218f846983c6956a21a

    Source
    EA Hydrology archive

    Coordinates
    50.887205, -0.883689

    County
    West Sussex

    Data from
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