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Greatham, West Sussex Weather

🌡️ Current Conditions
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Current Conditions Detail
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⏱ 24-Hour Forecast
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📅 7-Day Outlook
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📝 Extended Forecast
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About Greatham, West Sussex

Greatham holds a quiet, austere presence within the flat, marshy expanse of the Arun Valley. It lies 5.4 miles south-east of Petworth (from Petworth: bearing 132°T, OS grid TQ 043 158), and is situated east of Coldwaltham village. The horizon here is dominated by the expansive South Downs National Park, where the chalk hills rise to catch the pale, shifting light of the Sussex sky. To the west, the ancient stone arches of Greatham Bridge span the river, their weathered surfaces recording the slow, persistent passage of the water beneath. Much of the land surrounding Greatham falls within the Amberley Wild Brooks SSSI, a sodden, reed-choked basin that breathes with the rhythmic arrival of migratory birds. The damp earth here remains heavy and dark, clinging to the boots of those who cross the meadows in the grey hours of the morning. Greatham remains defined by this low-lying water, a landscape that keeps its own counsel against the encroaching dry ground of the higher ridges.

✈️ Aviation Weather

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📡 Precipitation Radar

Live animated radar for Greatham and surroundings — RainViewer.

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🛰️ Satellite Imagery

EUMETSAT Meteosat imagery over the British Isles — updated every 15 minutes.

EUMETSAT Meteosat satellite imagery over the British Isles
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🌊 Marine & Coastal
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💧 River Levels
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🗺️ View the Greatham map page — street map, satellite view and local search for Greatham, West Sussex.

About This Greatham, West Sussex Weather Page

This page provides live weather conditions and forecasts for Greatham, West Sussex, England, including current conditions, a 24-hour hourly forecast, 7-day outlook, real-time aviation weather (METAR and TAF reports from the nearest reporting airport), precipitation radar and Meteosat satellite imagery. Public safety alerts are sourced from the Met Office National Severe Weather Warning Service (NSWWS), covering wind, rain, snow, ice, fog, thunderstorm and extreme heat warnings. Coastal tide gauge readings are sourced from the Environment Agency National Tide Gauge Network in near real-time (15-minute updates), with marine wave and sea surface temperature data from the Open-Meteo Marine API. Live river level data is sourced from the Environment Agency Flood Monitoring API. All data updates automatically on every page visit.

Location data for Greatham includes coordinates 50.932876, -0.517066, in the county of West Sussex, England. Times are shown in local UK time (GMT in winter, BST in summer). A street and satellite map of Greatham is available on the Greatham map page, and forecasts for neighbouring towns are listed on the West Sussex weather hub.

Weather data is sourced from the Met Office and the open-source Open-Meteo API, whose ensemble includes the Met Office UKMO model. Severe weather warnings come from the Met Office National Severe Weather Warning Service (NSWWS). River level and tidal data are sourced from the Environment Agency Flood Monitoring and National Tide Gauge Network APIs. Aviation data is sourced from aviationweather.gov, with a modelled estimate shown where no reporting station is in range. Radar is provided by RainViewer and satellite imagery by EUMETSAT. All data updates automatically on every page visit.