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Last updated: 20:00, 5 Oct 2026
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Bonnyrigg is a town in Midlothian just south of Edinburgh, on the high ground above the River North Esk, with Dalhousie Country Park and the wooded Esk valley close by. Rain arriving off the North Sea or down from the Pentland Hills can reach Bonnyrigg before it reaches central Edinburgh. That is the situation a live Bonnyrigg rain radar handles well: hyperlocal radar reads the cell over your street, not the average for the region.
Bonnyrigg sits on higher ground than the Esk valley below it, so a band crossing Midlothian from the west can drop its rain on the town while the wooded valley at Dalhousie stays sheltered a little longer. Because the Grampians and Southern Uplands wring moisture out of fronts crossing from the west, the east coast around Edinburgh stays drier than the west of Scotland. The North Sea still generates its own conditions, though, delivering haar and heavy summer showers on easterly winds with little advance warning, and the river valleys carry that water quickly down to the coast.
RainViewer's coverage of Bonnyrigg, Scotland, comes from Met Office radar, with the map updating on each new 5-minute scan. The live map shows whether a shower is still over the Pentland Hills or already at Bonnyrigg, which a forecast for the town cannot tell you.
Winter fronts cross Midlothian steadily, and the North Esk valley below Bonnyrigg fills fast after a run of wet days. October to January brings fronts and named storms whose heavy hill rain raises the Dee, Don and South Esk, and North Sea rain layers in cold spells and sleet on top, much as Storm Babet demonstrated in Angus in October 2023. Coastal roads, river paths and low-lying streets are the first to flood.
Haar, sleet and showers alternate. Forecasts are least reliable because the sea showers form fast, and spring walks and outdoor events are the most exposed. Cold spring showers cross the Pentland Hills quickly, and walks in Dalhousie Country Park are the plans most often cut short.
Between May and September rain eases on average, though thunderstorms still build over the Grampians and can drift toward the coast, and haar sometimes rolls in with no rain at all. Festivals, golf and coast walks rely on short dry gaps. Summer showers are short, and the paths through the Esk valley depend on the gaps between them.
The wooded paths of Dalhousie Country Park drop down into the Esk valley below Bonnyrigg, where showers can gather before draining away. Check the radar before heading down into the valley.
Bonnyrigg's high street has little cover once a shower starts. Watch the cell approach and decide whether to carry on or duck inside.
The A7 and the roads into Edinburgh slow when heavy rain crosses Midlothian. Check the radar and decide whether to leave now or wait for the gap.
The North Esk can rise quickly below Bonnyrigg after rain on the Pentland Hills upstream. See whether the cell has passed before walking the riverside path.
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 Bonnyrigg the map also covers Edinburgh, Dalkeith and Penicuik.
Dalhousie Country Park's wooded paths drop down into the Esk valley below Bonnyrigg, where a heavy shower can turn the tracks slippery within minutes. Walkers on the lower paths feel it before those still up on the town's high ground. RainViewer shows the shower crossing the Pentland Hills before it reaches the valley.
Yes, heavy rain slows the A7 and the roads between Bonnyrigg and Edinburgh, and spray builds fast on the approach into the city. A quick look at the radar helps before you join the road. The map makes clear whether the shower is still coming or has already cleared.
Bonnyrigg itself sits on higher ground and rarely floods, but the North Esk below the town can rise quickly after heavy rain on the Pentland Hills and fill the wooded valley at Dalhousie. The lower paths in the park are the first to be affected. The radar shows whether more rain is crossing the hills.
May to September is the best window to visit Bonnyrigg, with Dalhousie Country Park and the Esk valley at their best. Showers are shorter in summer but the Pentland Hills still catch their share. Check the radar in the morning and plan outdoor time around the gap.
Bonnyrigg sits above the Esk valley on higher ground, so the town can stay dry while Dalhousie Country Park below collects the runoff from a shower that has already passed. A forecast covers both places with one number, while the radar map shows the rain crossing Bonnyrigg's high street and missing the Esk valley at Dalhousie.
The map for Bonnyrigg updates about every 5 minutes because the underlying Met Office radar scans arrive on that cycle, not a slower forecast update. Because Met Office dual-polarization radar covers both the coast and the North Sea approaches here, a shower building out at sea shows up well before it reaches Edinburgh or the shore. That frequent, hyperlocal refresh is what catches a shower building or clearing over a specific street.
Set a rain alert on Dalhousie Country Park or the town centre and RainViewer warns you before rain arrives. That lets you time a walk in the park or a trip into Edinburgh. The 2-hour forecast in 5-minute slices shows the next gap, and saved locations track Dalkeith and the North Esk together.
A walk through Dalhousie Country Park and a trip into Edinburgh both depend on a dry gap, and RainViewer shows the next one.
Bonnyrigg sees rain cross from the west over the Highlands, with separate showers off the North Sea from the east.
The forecast says rain in Bonnyrigg this afternoon. RainViewer's live hyperlocal radar shows the cell still over the Pentland Hills with the town centre still dry, and that decides whether the walk to the park starts now.
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The 5-minute steps show whether the walk through Dalhousie Country Park fits inside the dry gap.
Set the alert at Dalhousie Country Park, and the warning arrives in time to decide whether to head down into the valley or stay on higher ground.
Storms usually arrive from the west, across the Highlands, with North Sea showers from the east over Bonnyrigg, and the arrows show which way each cell is moving.
Check the Pentland Hills above Bonnyrigg in the last 48 hours to see how much rain came down.
Keep Dalhousie Country Park, the town centre and Dalkeith on the same list, each with its own alert.