Is it raining now in Tonypandy?
Sunny
5 OctNo upcoming precipitation for the next hour.
Last updated: 20:00, 5 Oct 2026
Free to download * Essential from $0.83 * Prices vary by region and promotions.
- App Only
Track up to 20 locations
Home, office, kids' school - all at once, no switching tabs.
- App Only
Alerts for each of them
Get notified 15 minutes before rain - while you can still change your plans.
- App Only
Widgets on your home screen
Live radar without opening the app - on your lock screen or home screen.
Rain in Tonypandy: What You Need to Know
Tonypandy sits in the narrow Rhondda Fawr valley in South Wales, with terraced streets climbing the steep valley sides above the River Rhondda. The steep slopes mean rain that falls on the tops above the town runs down fast, and the valley floor can flood within the hour. That is where a Tonypandy rain radar helps most, since hyperlocal radar reads the live position of the rain instead of an area forecast.
Fronts cross the Irish Sea and the Bristol Channel and meet ridge after ridge of high ground. Orographic lift produces heavy rain over the valley heads, and the steep, narrow valleys send that runoff to the river towns within hours. The Rhondda valley's steep sides funnel rain straight down to the river, so heavy rain on the tops above Tonypandy can raise the Rhondda in the valley floor within the hour, even after the shower has passed.
The radar map covering Tonypandy, Wales, draws directly on Met Office data, refreshed about every 5 minutes as new scans arrive. The live map shows whether rain is still falling on the tops above the valley or has already cleared, which a forecast for Tonypandy cannot tell you.
Rain by Season in Tonypandy
Autumn and winter frontal season (September to January)
Atlantic depressions and named storms bring persistent rain to the hills, and the valley rivers rise fast on saturated ground. Valley roads, mountain passes and low-lying streets are affected first. Autumn and winter fronts saturate the valley tops, and the River Rhondda rises fast through Tonypandy and the terraces below it.
Transition months (February to April)
Spring showers cross the valley quickly, and walks up onto the tops above the terraces are the plans most often cut short. February to April brings hail, sleet and wet snow over the higher ground, alternating with passing fronts. Forecasts often miss the mark because the showers involved are so narrow, which leaves hill walkers and weekend rugby matches the most exposed to sudden changes.
Summer season (May to August)
Summer storms build over the hills, and market day and events in the town centre depend on the gaps between them. From May to August rain becomes less frequent overall, but warm afternoons can still trigger heavy showers and thunderstorms over the hills. Anyone with plans for festivals, coastal trips or mountain walks needs to work around the short dry windows that appear between them.
Why You Need a Rain Radar in Tonypandy
Terraced street residents on the valley sides
The terraced streets climbing the steep valley sides shed rain fast toward the river below, and residents there watch the level in the Rhondda as closely as the sky. The radar shows whether more rain is falling on the tops above.
Market day stallholders in the town centre
Tonypandy's market and the shops along the main road are exposed to sudden bands off the tops. Check the radar before setting up a stall or heading out to shop.
Walkers on the tops above the terraces
The open hillside above the terraced streets has almost no shelter, and a shower there arrives with the full force of the wind. Track the cell's approach before deciding to walk or wait.
Commuters on the A4058 through the valley
The A4058 running along the valley floor slows in heavy rain, and spray builds fast where the road runs close to the river. Look at the radar and choose between leaving now and holding back.
RainViewer Radar Coverage in Tonypandy
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 Tonypandy the map also covers Pontypridd, Porth and Treorchy.
Tonypandy Rain Radar: Frequently Asked Questions
- How does rain affect the terraced streets in Tonypandy?
The terraced streets that climb the steep sides of the Rhondda valley shed rain quickly toward the river below, so a heavy burst on the tops can raise water levels in the valley floor within the hour. Residents watch the river as closely as the forecast. RainViewer shows the rain still falling on the tops above the town.
- Does rain affect the A4058 through Tonypandy?
Yes, the A4058 running along the valley floor through Tonypandy slows in heavy rain, and standing water builds where the road runs close to the River Rhondda. Look at the map before setting off. RainViewer shows whether the cell is still over the tops or already past.
- Does Tonypandy flood when it rains?
Yes, the River Rhondda can rise quickly through Tonypandy after heavy rain on the steep valley sides, and the narrow valley floor gives the water little room to spread. The terraced streets higher up the slopes usually stay dry. The radar shows whether heavy rain is falling on the tops above the valley.
- When is the best time to visit Tonypandy to avoid rain?
May to August is the best window to visit Tonypandy, when the valley tops and the town centre are at their driest. Winter is when the Rhondda is most likely to rise fast after rain on the hills. A quick radar check in the morning shows the dry gap to plan outdoor time around.
- Why can it rain on the valley floor while the tops above the terraces stays dry around Tonypandy?
Rain on the tops above Tonypandy runs straight down the steep valley sides to the river, so the valley floor can flood while the open hillside above, where the rain actually fell, has already cleared. RainViewer draws each shower where it actually is, which is why a look at the valley floor and the tops above the terraces can give different answers.
- Can I trust the Tonypandy rain radar more than my phone's default weather app?
The Tonypandy rain radar shows what the Met Office radar is measuring right now, while a phone's default weather app usually shows a modelled forecast instead. Wales is covered by Met Office C-band radar, and its dual-polarization data tells rain, sleet and hail apart even up on the Brecon Beacons and the valley tops. That hyperlocal difference is why the radar catches a shower a forecast app misses.
- What can I do with RainViewer in Tonypandy beyond checking current rain?
Set a rain alert on the town centre or the tops above the valley and RainViewer warns you before rain arrives. That lets you time a walk or a market visit. The 2-hour forecast in 5-minute slices shows the next gap, and saved locations track Porth and Treorchy together.
Track Rain in Tonypandy in Real Time
A walk on the tops above Tonypandy and market day in the town centre both depend on a dry gap, and RainViewer shows the next one.
Rain in Tonypandy arrives from the west in bands, and the valleys catch each one first.
Your phone forecast says rain in Tonypandy this afternoon. RainViewer's live hyperlocal radar shows the cell still over the tops above the valley with the town centre still dry, which decides whether the market stalls stay out.
Track rain in Tonypandy — 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 walk on the tops above the valley.
Rain alerts before arrival
An alert on the town centre arrives while the rain is still on its way, and that decides whether to set up the stall or wait.
Direction arrows on the map
In Tonypandy the wet weather tends to come from the west and south-west, off the Irish Sea and the Bristol Channel, and the arrows show the track of every shower.
48 hours of radar history
Scroll back over the tops above the Rhondda valley to see what actually fell overnight.
Multiple locations
Track the town centre, the tops above the valley and Porth together and compare which one is dry.
RainViewer
