Is it raining now in Dorking?
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Last updated: 20:00, 5 Oct 2026
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Rain in Dorking: What You Need to Know
Dorking lies in the Mole Gap through the North Downs in the Surrey Hills, with Box Hill and Ranmore Common rising on either side and the River Mole running past the town. The chalk ridges are steep and wooded, and the gap channels the wind. A Dorking rain radar is built for exactly this moment: hyperlocal radar tracks the shower's edge as it moves past specific streets.
Frontal rain arrives from the south-west, but summer storms are the real forecasting problem. Heat trapped over the city and the Chilterns and North Downs steer and trigger cells, and drainage can be overwhelmed within minutes by a storm that a forecast rated as a chance of showers. The North Downs rise on either side of the Mole Gap and lift incoming showers, so the ridges can be in rain and cloud while the town in the gap stays dry, and the Mole rises with the runoff.
RainViewer shows Dorking, England, on a live weather map fed by the Met Office radar network, so the precipitation you see is what is falling now. The live map shows whether a shower is over the Weald, in the Mole Gap or already on Box Hill, which a forecast for Dorking cannot tell you.
Rain by Season in Dorking
Autumn and winter frontal season (October to January)
October to January is dominated by band after band of frontal rain, with named storms adding wind on top. As the rain keeps falling, the Thames and its tributaries rise, and it is the roads, railways and low-lying streets that feel the effects first. Autumn and winter fronts saturate the Downs, and the Mole floods low ground in wet winters.
Transition months (February to April)
Spring showers cross the ridge, and walks on Box Hill and Ranmore Common are the plans most often caught. Through February to April, cold showers, hail and sunny spells trade off quickly, and the small, fast-moving showers make this the hardest stretch of the year to forecast. Spring races, park events and weekend sport all carry the greatest exposure during this period.
Summer storm season (May to September)
Summer thunderstorms build over the Weald and cross the Downs, and outdoor events at Denbies and on Box Hill depend on the cell track. Heat builds over the built-up area and thunderstorms produce short, intense rain that floods roads and stations in minutes. Festivals, tennis and open-air events depend on the storm cell's track, which the radar shows before the sky changes.
Why You Need a Rain Radar in Dorking
Box Hill and Surrey Hills walkers
Box Hill and the North Downs Way are exposed to showers and low cloud. Check the radar for the next dry window and time the climb.
Denbies Wine Estate and vineyard visitors
Denbies is a large working vineyard with outdoor tours and tasting terraces. See whether the cell will pass and plan the visit.
Cyclists on the Surrey Hills roads
Box Hill's zigzag road draws cyclists all year, and rain makes it slippery. Watch the shower approach and time the ride.
Commuters on the A24 and the Dorking lines
The A24, the A25 and the walk to the Dorking stations slow in heavy rain. Check the radar and decide whether to leave now or wait.
RainViewer Radar Coverage in Dorking
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 Dorking the map also covers Leatherhead, Reigate and Guildford.
Dorking Rain Radar: Frequently Asked Questions
- How does rain affect a climb up Box Hill near Dorking?
Rain makes the chalk paths and steps slippery and hides the view, and cyclists on the zigzag road need extra care, so walkers and riders time the climb around the showers. Groups watch the sky. RainViewer shows the shower crossing the Downs.
- Does rain affect the A24 near Dorking?
Yes, heavy rain slows the A24 and the A25 through the Mole Gap, and spray builds on the bends and dips. Check the radar before the drive starts. RainViewer tracks the cell's position, so it is clear whether it has passed or is still approaching.
- Does Dorking flood when it rains?
Dorking has surface flooding on low roads and beside the River Mole after prolonged rain, and the chalk can shed runoff quickly in intense downpours. Avoid flooded lanes. Checking the radar shows if a heavy band is building nearby.
- When is the best time to visit Dorking to avoid rain?
May to September is the best window to visit Dorking, with Box Hill, Denbies and the Surrey Hills at their best. Summer downpours don't last long. Check the radar in the morning and plan the climb for the dry gap.
- Why can it rain on Box Hill while Dorking town centre stays dry around Dorking?
The North Downs lift showers over Box Hill, so the hilltop can be in cloud and rain while Dorking in the Mole Gap stays dry until the band moves down the slope. Live radar shows the edge of each cell, so checking Box Hill and Dorking town centre separately shows which side of the line you are on.
- What is the advantage of a radar map over a rain forecast for Dorking?
A rain forecast for Dorking gives a single probability for a wide area, while the radar map shows the shower's real shape and position as Met Office scans arrive. Because London's worst flooding comes from short convective downpours rather than steady frontal rain, Met Office dual-polarization radar earns its keep here by telling the two apart before underpasses and stations start to flood. That hyperlocal detail is what lets you judge one street rather than the whole town.
- What can I do with RainViewer in Dorking beyond checking current rain?
Set a rain alert on Box Hill or Dorking station and RainViewer warns you before rain arrives. That lets you time a climb or a commute. The 2-hour forecast in 5-minute slices shows the next gap, and saved locations track Denbies and Ranmore Common.
Track Rain in Dorking in Real Time
A climb up Box Hill and a visit to Denbies both depend on a dry gap, and RainViewer shows the next one.
Rain around Dorking can turn into a downpour within minutes, so a quick radar check first is worth it.
A weather app says showers for Dorking this afternoon. RainViewer's live hyperlocal radar shows the cell over the Weald with Box Hill still dry, and that decides when the climb starts.
Track rain in Dorking — 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 climb up Box Hill.
Rain alerts before arrival
An alert on Box Hill arrives while the rain is still on its way, and that decides whether to start the climb now or wait.
Direction arrows on the map
In Dorking the wet weather tends to come from the south-west, and the arrows show the track of every shower.
48 hours of radar history
Scroll back over the North Downs to see what actually fell overnight.
Multiple locations
Track Box Hill, Denbies and Ranmore Common together and compare which one is dry.
RainViewer
