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Last update: 21:00, 5 Oct 2026
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Bognor Regis sits on the flat West Sussex coast, with a long sandy seafront and pier facing south across the Channel and Hotham Park a short walk inland. Showers off the Channel reach the open beach first, and the sheltered park behind the town can stay dry a little longer. A Bognor Regis rain radar shows the real picture, because hyperlocal radar follows the shower's shape rather than reporting a single number for the area.
Rain bands crossing the Channel are shaped by the sea, the South Downs and the Solent, which determine how each one breaks up on its way to the south coast. On warm days, sea-breeze convergence triggers thunderstorms along the coast and just inland, and a regional forecast averages those storms away rather than showing them. Rain reaches Bognor Regis up the Channel with the South Downs to the north giving it nowhere to lift, so a band can move through quickly with little warning on the open seafront.
RainViewer keeps the map over Bognor Regis, England, current with Met Office radar, updating roughly every 5 minutes as new scans come in. The live map shows whether a shower is still out over the Channel or already at the pier, which a forecast for Bognor Regis cannot tell you.
Along or across the Channel, Atlantic depressions track through, and named storms bring heavy rain, strong winds and high seas. Effects show first on seafront roads, ferries and coastal paths, and saturated ground under heavy rain raises flood risk in low-lying areas. Autumn and winter fronts up the Channel bring the wettest and windiest weather to the Bognor Regis seafront and pier.
Spring showers cross the coast quickly, and the pier and the beach huts are the first places to empty. Fronts weaken and cold showers cross the coast, sometimes with hail. Forecasts struggle because the showers are narrow and quick, and seafront events and spring outdoor plans are the most exposed.
Summer visitors to the beach and Hotham Park depend on short dry windows between showers off the Channel. Sea-breeze storms form where warm land meets a cooler sea, and thunderstorms can also drift in from the continent. Beach days, festivals and air shows all depend on the cell track, since a storm can reach the seafront within minutes.
The pier and the open seafront promenade have almost no shelter once a shower moves in off the Channel. Visitors watch the radar to time a walk around the next gap.
Hotham Park's lawns, the miniature railway and the walled garden sit a short walk from the seafront with limited cover of their own. Families watch the radar before setting out from the beach.
The A259 along the coast and the walk to Bognor Regis station slow when heavy rain sweeps in off the Channel. A glance at the radar before leaving shows if the shower is ahead.
The outdoor pools and walkways at the seafront holiday parks have little cover from a sudden band off the sea. Checking the radar before heading out shows whether to wait a few minutes.
RainViewer shows UK precipitation using data from the Met Office, the national weather service, which runs a network of C-band dual-polarization weather radars. The Met Office network also feeds the European OPERA composite, and the RainViewer map refreshes with each new scan, about every 5 minutes. From Bognor Regis the map also covers Chichester, Littlehampton and Arundel.
The pier and the open promenade along the beach have almost no shelter, so a shower moving up the Channel can empty the seafront within minutes. Visitors and traders both watch the sky closely. RainViewer shows the hyperlocal picture of a band crossing the Channel before it reaches the pier.
Yes, the A259 along the coast slows in heavy rain, and standing water can build where the flat road crosses low ground near the seafront. A look at the radar before setting out shows the shower's exact position right now.
Yes, the flat coastal ground around Bognor Regis drains slowly, and heavy rain can leave standing water on the low streets near the seafront. Hotham Park a little further inland usually copes better. The radar shows whether more rain is still crossing the Channel.
May to September is the best window to visit Bognor Regis, when the seafront, the pier and Hotham Park are at their most pleasant. Showers off the Channel can still arrive quickly in any season. Check the radar in the morning and plan the beach day around the gap.
The open seafront catches a shower off the Channel first with nothing to slow it, while Hotham Park set back from the coast can stay dry a little longer until the same band reaches further inland. RainViewer draws each shower where it actually is, which is why a look at the seafront and Hotham Park can give different answers.
The Bognor Regis radar map needs a connection to pull the latest Met Office scan, refreshed roughly every 5 minutes, so it is not built for offline use. The Met Office C-band radars covering the south coast measure precipitation over the Channel as well as over land, so an approaching band is visible before it reaches the shore. That live, hyperlocal feed is only as current as the last successful update.
Set a rain alert on the pier or Hotham Park and RainViewer warns you before rain arrives, which settles whether to head to the beach now or the park instead. The 2-hour forecast in 5-minute slices shows the next window, and saved locations track the seafront and the park together.
An afternoon on the seafront and a walk through Hotham Park both depend on a dry gap, and RainViewer shows the next one.
Bognor Regis feels rain move up the Channel from the south-west, with the coastline shaping how the band arrives.
A weather app says showers for Bognor Regis this afternoon. RainViewer's live hyperlocal radar shows the band still out over the Channel with the pier dry, which decides whether the seafront walk starts now.
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Two hours of 5-minute steps let you time the walk through Hotham Park to the minute.
Put an alert on the pier. RainViewer warns you minutes ahead, which settles whether to head to the beach now or the park instead.
Rain reaches Bognor Regis most often from the south-west, up the English Channel, so the arrows tell you at a glance whether a cell is heading your way.
The 48-hour history shows what fell on the Channel to the south, which is the fastest way to judge ground conditions.
Save the pier, Hotham Park and the seafront and check all three in one look.