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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Metro Report weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before heading out in Petworth today, as conditions across this West Sussex market town can shift quickly with the South Downs to the south and the Weald to the north influencing local weather patterns.
What is the weather like in Petworth today?
Petworth sits inland, sheltered by the South Downs National Park, which often means lighter winds than the coast but a greater chance of mist and fog in the mornings. The live forecast above shows the immediate outlook, so use it to plan walks around Petworth Park or trips to the town centre.
How does Petworth’s location affect its weather?
Being in the Rother Valley, Petworth can be cooler than nearby coastal towns like Bognor Regis, and frost is more common on clear winter nights. The Downs to the south can also trigger localised cloud and light rain, even when the wider region stays dry.
Is Petworth usually wetter than the Sussex coast?
Yes, slightly. The South Downs force moist air upwards, increasing rainfall in Petworth compared to coastal spots like Littlehampton. Annual rainfall here averages around 800–900mm.
Does Petworth get snow in winter?
It can, more often than coastal Sussex. The town’s inland position and elevation mean snow settles a few times each winter, though heavy falls are rare. Check the met office weather Petworth forecast for warnings.
What is the best time to visit Petworth for fine weather?
Late spring (May–June) and early autumn (September) offer the most settled conditions, with lighter winds and fewer rain days than winter. Summer can be warm but thundery showers are possible.
Sources
For a wider look at conditions across the country, visit our UK weather hub or check the 10 day weather forecast UK. You can also compare Petworth with Bristol Weather or Sheffield Weather.