Is it raining now in Redwood City?
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9 JulNo upcoming precipitation for the next hour.
Last update: 18:00, 9 Jul 2026
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Rain in Redwood City: What You Need to Know
Redwood City, California experiences Mediterranean climate. The Redwood City rain radar provides hyperlocal radar coverage updated every 4–6 minutes from KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento), showing exactly when and where precipitation will reach the area — a level of precision that city-wide forecasts cannot match. Rain in Redwood City is shaped by mediterranean climate; 86% of annual rain falls november–march in atmospheric river events; fire-season burn scars amplify mudslide risk.
RainViewer draws on live NEXRAD data from KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento) to show precipitation at up to 250-meter resolution across Redwood City and surrounding California 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 Redwood City
Peak rain season (November–March (atmospheric river season))
Redwood City sees its most active weather during November–March (atmospheric river season). Mediterranean climate drives the primary precipitation risk during this window.
Transition months
Seasonal transitions bring variable conditions to Redwood City — 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 Redwood City 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 Redwood City
Redwood City Flood-Zone Residents and Property Managers
Redwood City'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 Redwood City
Rain events in Redwood City 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 Redwood City's most weather-sensitive corridors.
Outdoor Recreation and Event Planning in Redwood City
Redwood City's outdoor venues, parks, and recreational areas are directly exposed to the seasonal rain events that characterize California's November–March (atmospheric river season) 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 Redwood City
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 Redwood City, California, the primary NEXRAD source is KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento), providing hyperlocal radar coverage across the area.
Redwood City Rain Radar: Frequently Asked Questions
- Does Redwood City flood when it rains heavily?
Yes — Redwood City's low-lying areas near river corridors and urban drainage channels creates documented flood risk during intense rain events. Mediterranean climate 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 Redwood City's rainy season?
Redwood City's primary rain season runs through November–March (atmospheric river season), when Mediterranean climate 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 Redwood City so hard to predict precisely?
Redwood City's rain character is shaped by Mediterranean climate, which creates localized precipitation patterns that vary significantly across the city. A forecast covers the broader California region; a hyperlocal radar at 250-meter resolution shows the actual cell position over Redwood City in real time, updated every 4–6 minutes from KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento).
- Is there a live rain radar for Redwood City?
Yes — RainViewer displays live NEXRAD data for Redwood City at up to 250-meter resolution, updated every 4–6 minutes from KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento). 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 Redwood City or change track before arrival.
Track Rain in Redwood City in Real Time
Rain in Redwood City 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 Redwood City right now.
Your weather app shows rain likely near Redwood City. RainViewer shows the cell's exact position.
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