Is it raining now in Southwater?
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Last update: 21:00, 5 Oct 2026
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Rain in Southwater: What You Need to Know
Southwater sits south of Horsham on the edge of the Sussex Weald, where a former brickworks was reshaped into Southwater Country Park and its lake. The village is inland and low-lying, so rain here tends to sit rather than run off quickly. A Southwater rain radar answers that in seconds, with hyperlocal radar drawing the shower's edge instead of a broad probability.
Showers reach Southwater from the south-west across the Weald with nothing to lift or break them up, so the village and Horsham a few miles north can see quite different rain within the same hour. 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.
For anyone in Southwater, England, RainViewer shows Met Office radar data live, refreshed with every new scan roughly every 5 minutes. The live map shows whether a shower has already crossed Southwater Country Park or is still approaching over the Weald, a hyperlocal detail no county-wide forecast can give.
Rain by Season in Southwater
Autumn and winter frontal season (October to January)
Autumn and winter rain sits on the clay of the Weald around Southwater, and paths through the country park turn heavy underfoot. Atlantic depressions track along or across the Channel, and named storms bring heavy rain with strong winds and high seas. Seafront roads, ferries and coastal paths are affected first, and heavy rain on saturated ground raises flood risk in low-lying areas.
Transition months (February to April)
As fronts weaken, cold showers move across the coast, sometimes carrying hail. Because they are narrow and quick, forecasts struggle to keep up, and seafront events and spring outdoor plans carry the most exposure. Spring showers cross the Weald quickly, and the lake path at Southwater Country Park is the plan most often cut short.
Summer thunderstorm season (May to September)
A cooler sea against warm land triggers sea-breeze storms, and thunderstorms drifting in from the continent add to them. The cell track decides beach days, festivals and air shows, because a storm can be over the seafront within minutes. Summer storms can build over the warm Weald in the afternoon, and picnics by the lake depend on the gap before the next cell.
Why You Need a Rain Radar in Southwater
Southwater Country Park walkers
The lake path and woodland trails at Southwater Country Park have long open stretches with little shelter. Checking the radar before setting out shows whether the loop can be finished before the next shower.
School-run drivers on the Worthing Road
The Worthing Road and the lanes into Southwater slow in heavy rain, with standing water building at the low points near the park. A look at the radar helps decide whether to leave a few minutes early.
Cricket and football on Southwater's pitches
Matches on Southwater's playing fields are delayed when rain crosses the Weald, and the clay ground holds water for a while afterwards. Watching the cell on the radar shows whether it will clear before kick-off.
Horsham commuters through Southwater
Commuters driving north through Southwater towards Horsham and the station can see whether the shower over the Weald will reach the road before they do, and time the drive around it.
RainViewer Radar Coverage in Southwater
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 Southwater the map also covers Horsham, Billingshurst and Worthing.
Southwater Rain Radar: Frequently Asked Questions
- How does rain affect Southwater Country Park?
Southwater Country Park's lake path and woodland trails hold water on the clay ground long after a shower has passed, so regular walkers time their loop around the forecast rather than just the day. Dog walkers and joggers watch the sky closely too. RainViewer shows the shower crossing the Weald before it reaches the park.
- Does rain affect the Worthing Road through Southwater?
Yes, the Worthing Road through Southwater slows in heavy rain, and standing water collects at the low points near the country park. Check the radar before heading out. RainViewer shows whether the cell is still crossing the Weald or already over the village.
- Does Southwater flood when it rains?
Southwater does not flood badly, but the clay ground around the country park and the lower lanes holds standing water for hours after heavy rain. The lake itself is designed to take extra rainfall from the surrounding fields. Check the radar to see whether more rain is coming.
- When is the best time to visit Southwater to avoid rain?
May to September is the best window to visit Southwater, when the country park lake and trails are at their most pleasant. Weald showers can still arrive quickly even in summer. Check the radar early and time the walk to the dry gap.
- Why can it rain on Southwater Country Park while Southwater village centre stays dry around Southwater?
Showers crossing the open Weald reach the country park's lake first, so the park can be in rain while the village centre a short walk away stays dry until the cell moves through. Live radar shows the edge of each cell, so checking Southwater Country Park and Southwater village centre separately shows which side of the line you are on.
- How far ahead does the Southwater radar forecast go?
The short-range forecast for Southwater covers the next two hours in 5-minute steps, built from the same Met Office radar the live map uses. Covering the south coast, Met Office C-band radar measures precipitation over both the Channel and the land, so a band approaching from the sea shows up before it reaches the shore. That hyperlocal nowcast is far tighter than a general daily outlook.
- What can I do with RainViewer in Southwater beyond checking current rain?
Set a rain alert on Southwater Country Park and RainViewer warns you before rain arrives, which settles whether to start the lake loop now or wait. The 2-hour forecast in 5-minute slices shows the next gap, and saved locations track the park and Horsham together.
Track Rain in Southwater in Real Time
A walk around Southwater Country Park and the school run along the Worthing Road both depend on a dry gap, and RainViewer shows the next one.
Southwater feels rain move up the Channel from the south-west, with the coastline shaping how the band arrives.
Your weather app says rain in Southwater this afternoon. RainViewer's live hyperlocal radar shows the cell still out over the Weald with the country park dry, which decides whether the lake walk starts now.
Track rain in Southwater — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
Slice the next two hours into 5-minute steps and pick the gap for the loop around the lake.
Rain alerts before arrival
An alert on Southwater Country Park arrives while the rain is still on its way, and that decides whether to start the walk now or wait.
Direction arrows on the map
In Southwater the wet weather tends to come from the south-west, up the English Channel, and the arrows show the track of every shower.
48 hours of radar history
Scroll back over the Weald around Southwater to see what actually fell overnight.
Multiple locations
Track Southwater Country Park, Horsham and the Worthing Road together and compare which one is dry.
RainViewer
