Is it raining now in Poissy?
Sunny
10 JulNo upcoming precipitation for the next hour.
Last update: 03:00, 10 Jul 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 Poissy: What You Need to Know
Poissy occupies Paris Basin lowland, with the Seine and its tributaries as the dominant hydrological feature. When rain falls upstream, the live radar shows whether it's heading toward Poissy before any forecast updates.
Forecasts for Poissy are calibrated across all of Ile-de-France — which means Paris Basin lowland topography and Seine and its tributaries drainage patterns specific to Poissy are smoothed away. The live radar keeps them.
RainViewer draws on Météo-France's ARAMIS Doppler network — 31 stations, 5-minute scans, dual-polarization — to show Poissy's rain in real time as it develops.
Rain by Season in Poissy
Peak rainfall period
In Poissy and Ile-de-France, winter flood risk peaks January–February. This is when outdoor events, commutes, and travel decisions are most disrupted — the live radar gives 20 minutes of warning that a forecast cannot.
Unpredictable months
Transitional months are when Poissy's forecast accuracy drops furthest. The atmosphere oscillates between stable and convective; a morning outlook for Poissy in Ile-de-France is often outdated before afternoon. The radar remains reliable throughout.
Best outdoor window
Even in Poissy's quieter rain months, no day in Ile-de-France is fully dry. The live radar is the most accurate same-day planning tool year-round — check before committing to outdoor plans near the Seine and its tributaries or across Paris Basin lowland.
Why You Need a Rain Radar in Poissy
Poissy commuters timing their journey
Fast-moving convective cells in Paris Basin lowland can make Seine and its tributaries valley approach roads difficult with almost no warning. A radar check before leaving Poissy gives a 20-minute decision window — long enough to wait out the cell or leave before it arrives.
Visitors and day-trippers to Poissy
Poissy and the surrounding Paris Basin lowland draw visitors who plan outdoor itineraries. A live radar check on the day of a visit shows whether the cell visible over Paris Basin lowland to the west will reach Poissy or veer off — an answer no forecast made the previous day can give.
Property and flood protection planning in Poissy
For residents near the Seine and its tributaries in Poissy, the relevant question during heavy rain is whether the catchment rainfall has peaked or is still building. The live radar shows the spatial extent of the event across Paris Basin lowland — something a river gauge alone cannot tell you.
Regular Poissy radar users
Direct traffic from Poissy suggests residents here check the radar habitually. The 48-hour history view shows how cells typically track across Paris Basin lowland — useful context for reading the live map on any given day in Poissy.
RainViewer Radar Coverage in Poissy
Rain data for Poissy, France comes from Météo-France — the French national meteorological service — via its ARAMIS radar network of 31 Doppler stations covering metropolitan France. Most stations operate in dual-polarization mode, meaning the radar returns are processed for both liquid and frozen precipitation and deliver more accurate rainfall estimates than single-polarization systems. Scans update every 5 minutes and are processed into the ARAMIS mosaic within seconds of each scan cycle — no smoothing, no averaging delay. From Poissy's position on the map, the radar composite shows coverage across the surrounding region continuously, including neighboring departments and cross-border coverage where relevant.
Poissy Rain Radar: Frequently Asked Questions
- Is it raining in Poissy right now?
The only accurate answer for Poissy is a live radar check — rain in Paris Basin lowland changes block by block and minute by minute, making any static forecast outdated before you act. RainViewer pulls Météo-France ARAMIS data every 5 minutes to show exact current conditions.
- Will it rain during outdoor activities in Poissy today?
Ile-de-France's rain patterns mean even forecast-clear days carry risk in Poissy. Check the radar 20–30 minutes before outdoor activities — it shows whether the approaching cell will arrive or track away, which a forecast cannot reliably answer at city level.
- Does rain affect roads near the Seine and its tributaries?
Surface water on roads near the Seine and its tributaries in Paris Basin lowland builds quickly during intense events. Checking the Poissy live radar before departure shows whether the cell crossing the Seine and its tributaries catchment will arrive before or after you pass through.
- Does Poissy flood when it rains heavily?
Seine river flooding and pluvial run-off risk in Poissy and Ile-de-France depends on proximity to the Seine and its tributaries and low-lying terrain. The live radar shows whether upstream rainfall is still feeding the catchment — critical for knowing whether conditions will continue to worsen or have peaked.
- When is the best time to visit Poissy to avoid rain?
In Ile-de-France, summer brings convective afternoon storms over the sealed Paris Basin. Use the live radar for same-day confirmation when visiting Poissy in any season.
- Why does rain sometimes hit one part of Poissy but not another?
In Paris Basin lowland, localised convection can drench one neighbourhood in Poissy while the next stays dry — the hyperlocal radar captures this at 100 metres per pixel; a forecast gives one number for the whole city.
- Is there a live rain radar for Poissy?
Yes — RainViewer shows Poissy's rain via Météo-France's ARAMIS radar network, updated every 5 minutes with dual-polarization Doppler data. The hyperlocal radar resolves precipitation at 100 metres per pixel across Poissy and the surrounding Ile-de-France region.
- Can I get a rain alert before it hits Poissy?
RainViewer lets you set a rain alert for any specific location in Poissy. When rain is 20–30 minutes away, the alert fires — enough lead time to adjust outdoor plans, protect property, or time a departure from Poissy.
Track Rain in Poissy in Real Time
Poissy's position in Paris Basin lowland means rain cells from the Seine and its tributaries catchment can arrive before any forecast update. The radar closes that gap.
2-hour forecast in 5-minute slices — see exactly whether rain clears before your plans in Poissy or arrives during them. Rain alerts before arrival — set an alert for your location in Poissy and get 20 minutes' notice before rain arrives. Direction arrows on the map — Poissy cells typically arrive from the north; arrows show whether the cell will reach you or track away. 48 hours of radar history — see how rain moved through Poissy and Ile-de-France yesterday and whether today's pattern looks similar. Multiple locations — track your home, workplace, and key outdoor destinations in and around Poissy simultaneously. Track rain in Poissy — free
Upgrade to Essential for alerts, forecasts, and full radar history
RainViewer
