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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the WordPatch weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
For Arundel, the live forecast above shows the current conditions; spring (April–May) and early autumn (September–October) offer the most reliable dry spells for exploring the castle and South Downs, with daytime highs often between 12°C and 18°C.
What’s the best time to visit Arundel for decent weather?
Late spring and early autumn give you the best balance of mild temperatures and lower rainfall. July and August are warmest, but can feel crowded during school holidays and occasionally humid. If you want to avoid the heaviest downpours, skip November to February when Atlantic fronts dominate. For longer-range planning, our 10-day forecast helps you pin down a clear window.
What should I pack for a trip to Arundel?
A waterproof jacket is essential year-round – even in summer a sudden shower is common. Layering works best: a light fleece or jumper under a shell, plus comfortable walking shoes for the cobbled streets and castle grounds. In winter add a warm coat, hat and gloves; in summer a sunhat and sunscreen are wise for exposed parts of the Downs. Check the UK weather hub before you set off.
Does the live forecast above update automatically?
Yes, the live forecast above refreshes with the latest observations and short-term outlook. For more detail, bbc weather arundel and accuweather arundel provide alternative models, but we recommend checking the Met Office for official warnings.
How reliable are 14‑day forecasts for Arundel?
Beyond seven days confidence drops, though bbc weather arundel 14 days and arundel weather 14 days give a general trend. For day‑to‑day planning, the arundel weather hourly view in the live forecast is more dependable.
What about longer‑range outlooks, say 30 days?
An arundel weather next 30 days forecast can indicate broad patterns (e.g., wetter or drier than average), but not exact dates. Use it for rough planning; for actual trips rely on the 7‑day and hourly updates above.