Is it raining now in Sammamish?
Sunny
9 JulNo upcoming precipitation for the next hour.
Last update: 18:00, 9 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 Sammamish: What You Need to Know
Sammamish, Washington experiences marine west coast. The Sammamish rain radar provides hyperlocal radar coverage updated every 4–6 minutes from KATX (Camano Island), showing exactly when and where precipitation will reach the area — a level of precision that city-wide forecasts cannot match. Rain in Sammamish is shaped by marine west coast; 150+ rain days/year in seattle; cascades create dramatic rain shadow; pineapple express ars december–february.
RainViewer draws on live NEXRAD data from KATX (Camano Island) to show precipitation at up to 250-meter resolution across Sammamish and surrounding Washington communities. Storms typically approach from the southwest, and the live map shows the cell's movement vector — giving residents, commuters, and outdoor workers the advance notice they need before conditions change.
Rain by Season in Sammamish
Peak rain season (October–April (frontal/AR season); July–August reliably dry)
Sammamish sees its most active weather during October–April (frontal/AR season); July–August reliably dry. Marine west coast drives the primary precipitation risk during this window.
Transition months
Seasonal transitions bring variable conditions to Sammamish — conditions can shift rapidly and forecast accuracy is lower than during the established wet or dry season.
Drier season (winter months)
During winter months, precipitation risk in Sammamish drops significantly. This is the most reliable window for outdoor activities and events, though no season is entirely risk-free.
Why You Need a Rain Radar in Sammamish
Sammamish Flood-Zone Residents and Property Managers
Sammamish's low-lying areas near river corridors and urban drainage channels can rise rapidly during intense rain events. A live radar showing an intense cell approaching from the southwest gives residents and property managers 20–30 minutes to move vehicles, prepare drainage systems, and alert household members before conditions become dangerous.
Commuters and Highway Drivers in Sammamish
Rain events in Sammamish can close roads and create dangerous driving conditions with minimal warning. Checking the radar 20 minutes before departure reveals whether an incoming cell will clear before your route or whether a 30-minute delay will mean dry roads — a practical decision that saves time and reduces flood-crossing risk on Sammamish's most weather-sensitive corridors.
Outdoor Recreation and Event Planning in Sammamish
Sammamish's outdoor venues, parks, and recreational areas are directly exposed to the seasonal rain events that characterize Washington's October–April (frontal/AR season); July–August reliably dry weather window. A live radar check 30–60 minutes ahead tells event managers and outdoor enthusiasts whether to proceed with outdoor plans or prepare for disruption.
RainViewer Radar Coverage in Sammamish
RainViewer aggregates radar data for the United States from the NEXRAD network operated by NOAA's National Weather Service — 160 WSR-88D stations covering the contiguous US, Alaska, Hawaii, and US territories. Data updates every 4–6 minutes as each station completes its scan cycle. RainViewer processes and displays NEXRAD data at up to 250-meter resolution, preserving the raw scan data rather than smoothing it into regional averages. For Sammamish, Washington, the primary NEXRAD source is KATX (Camano Island), providing hyperlocal radar coverage across the area.
Sammamish Rain Radar: Frequently Asked Questions
- Does Sammamish flood when it rains heavily?
Yes — Sammamish's low-lying areas near river corridors and urban drainage channels creates documented flood risk during intense rain events. Marine west coast means that rainfall runs off rapidly into drainage channels and low-lying streets. Avoiding low-lying crossings and low underpasses during active radar cells reduces flood risk significantly.
- When is Sammamish's rainy season?
Sammamish's primary rain season runs through October–April (frontal/AR season); July–August reliably dry, when marine west coast drives the most active weather. The driest period is typically winter months, when outdoor activities and travel planning carry the lowest weather risk.
- Why is rain in Sammamish so hard to predict precisely?
Sammamish's rain character is shaped by marine west coast, which creates localized precipitation patterns that vary significantly across the city. A forecast covers the broader Washington region; a hyperlocal radar at 250-meter resolution shows the actual cell position over Sammamish in real time, updated every 4–6 minutes from KATX (Camano Island).
- Is there a live rain radar for Sammamish?
Yes — RainViewer displays live NEXRAD data for Sammamish at up to 250-meter resolution, updated every 4–6 minutes from KATX (Camano Island). The map shows current precipitation, storm movement direction, and a 2-hour nowcast — so you can see whether the cell approaching from the southwest will reach Sammamish or change track before arrival.
Track Rain in Sammamish in Real Time
Rain in Sammamish changes fast — a live radar gives you the 20-minute window a forecast never can.
Forecasts cover the region. RainViewer shows the cell position over Sammamish right now.
Your weather app shows rain likely near Sammamish. RainViewer shows the cell's exact position.
Track rain in Sammamish — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
see when rain will reach Sammamish
Rain alerts before arrival
set an alert for your Sammamish location
Direction arrows
storms approach Sammamish from the southwest
48 hours of radar history
understand recent rain patterns in Sammamish
Multiple locations
track Sammamish alongside nearby towns simultaneously
RainViewer
