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Last updated: 20:00, 5 Oct 2026
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Rain in Annan: What You Need to Know
Annan sits where the River Annan meets the Solway Firth in Dumfries and Galloway, a former royal burgh close to the English border with the Solway's wide tidal flats stretching out below the town. Atlantic weather reaches this stretch of coast from the west and south-west, often after crossing the Solway with little to slow it. That gap closes with an Annan rain radar, since hyperlocal radar tracks the cell itself rather than smoothing it into a regional figure.
The wide Solway Firth gives an approaching shower a clear run at Annan from the south-west, and the tide adds its own risk, since heavy rain on top of a high spring tide can push water back up the river through the town. Being first in line for Atlantic weather, western Scotland takes the brunt of each front as it comes ashore, and the Highlands and Southern Uplands force the air upward, squeezing out heavy rain. Moisture off the Firth of Clyde adds to what the Clyde valley channels down toward Glasgow, and the towns along the river catch both the runoff and the wind.
The live rain map for Annan, Scotland, in RainViewer is built from Met Office radar, and each new scan appears on the map within minutes. The live map shows whether a shower is still out over the Solway Firth or already crossing towards Annan and the river mouth.
Rain by Season in Annan
Autumn and winter frontal season (September to January)
Named storms cross the Solway from the Atlantic, and heavy rain combined with a high spring tide can push the River Annan back up through the town. From September to January, named Atlantic storms track across Scotland and the west coast bears the worst of the rain and gales. Roads, ferries and rail suffer as the ground saturates, tides run high and debris comes down, while low cloud on the hills conceals the next band moving in.
Transition months (February to April)
The last fronts of the season bring showers, hail and wet snow in alternation from February to April, and because the cells are narrow, forecasts often miss the timing. Weekend sport and hill walks feel it most. Showers, hail and sleet alternate with the last fronts in spring, and walks along the riverside and the Solway coast are the plans most often caught out.
Summer season (May to August)
Rain is less frequent, but long light evenings still bring showers off the Firth of Clyde, and thunderstorms occasionally form inland. Festivals, ferries and coast walks depend on short dry windows. Rain is less frequent in summer, but Atlantic showers can still cross the Solway quickly on a changeable day.
Why You Need a Rain Radar in Annan
Walkers along the River Annan
The path beside the River Annan through the town can flood when heavy rain meets a high tide. Watch the shower approach on the radar and decide whether to start the walk or wait.
Visitors to the Solway coast and mudflats
The wide tidal flats of the Solway Firth below Annan are fully exposed to weather coming in from the south-west. Check the radar before heading out to the shore.
Commuters on the A75 towards Dumfries
The A75 towards Dumfries and the border at Gretna slows in heavy rain, and spray builds fast on the open stretches. Check the radar first and decide whether it is worth leaving now.
Anglers on the Annan and the Solway shore
The River Annan and the Solway shore can turn rough quickly when a band comes in from the south-west. Check the radar before heading out to fish.
RainViewer Radar Coverage in Annan
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 Annan the map also covers Dumfries, Gretna and Carlisle.
Annan Rain Radar: Frequently Asked Questions
- How does a high tide affect flooding at Annan?
Heavy rain combined with a high spring tide on the Solway Firth can push the River Annan back up through the town rather than letting it drain out to sea, catching residents near the riverside off guard. Locals watch the tide table as closely as the rain. RainViewer shows whether more rain is crossing the Solway to add to the risk.
- Does rain affect the A75 near Annan?
Yes, the A75 towards Dumfries and the border at Gretna slows in heavy rain, and standing water can build on the open stretches near the Solway coast. A glance at the radar before setting off shows what's ahead. RainViewer shows whether the cell is still to come or has already gone through.
- Does Annan flood when it rains?
Yes, the River Annan can back up through the town when heavy rain combines with a high spring tide on the Solway Firth, and low ground near the river is the most exposed. Higher streets in the town centre usually stay clear. The radar shows whether more rain is crossing the Solway.
- When is the best time to visit Annan to avoid rain?
May to August is the best window to visit Annan, with the riverside walk and the Solway coast at their best. Atlantic showers can still cross the Solway quickly at any time of year. The radar in the morning shows the best window for time outside.
- Why can it rain on the Solway shore while the town centre stays dry around Annan?
The Solway shore below Annan lies fully open to weather coming in from the south-west, while the town centre a little further up the river can stay dry a few minutes longer before the same band arrives. RainViewer draws each shower where it actually is, which is why a look at the Solway shore and the town centre can give different answers.
- Does RainViewer use satellite data for Annan or just radar?
The rain map for Annan is built primarily from Met Office ground radar, which reads precipitation directly rather than inferring it from cloud cover. Met Office C-band radars covering the west of Scotland measure bands as they cross the Clyde, and dual-polarization data helps separate rain from sleet on the high ground. That radar-first approach is why the hyperlocal picture holds up street by street.
- What can I do with RainViewer in Annan beyond checking current rain?
Set a rain alert on the riverside or the Solway shore and RainViewer warns you before rain arrives. That lets you time a walk or a fishing trip. The 2-hour forecast in 5-minute slices shows the next gap, and saved locations track Dumfries and Gretna together.
Track Rain in Annan in Real Time
A walk beside the river and an afternoon on the Solway shore both depend on a dry gap, and RainViewer shows the next one.
Annan catches rain moving in from the south-west off the Atlantic, funneled up the Clyde estuary toward the city.
Your phone forecast says showers in Annan this afternoon. RainViewer's live hyperlocal radar shows the cell still out over the Solway with the riverside dry, which decides whether the walk starts now.
Track rain in Annan — 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 along the Solway shore.
Rain alerts before arrival
An alert on the riverside arrives while the rain is still on its way, and that decides whether to head down to the shore now or wait.
Direction arrows on the map
In Annan the wet weather tends to come from the south-west, off the Atlantic and up the Clyde estuary, and the arrows show the track of every shower.
48 hours of radar history
Scroll back over the Solway Firth to the south-west to see what actually fell overnight.
Multiple locations
Track the riverside, Gretna and Dumfries together and compare which one is dry.
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