San Mateo, CA → Portland, OR
550 mi · 11h (driving)
Current Risk
Medium Risk
Coastal Flood Advisory in effect along your route
San Mateo
57°
Glenn County
73°
Siskiyou County
54°
43.5°
46°
Portland
62°
Trip Briefing
4 segments · 550 mi · 11h 1m
Weather
☀️ Clear sky
73°F, wind 7 mph
Rest Stops
7
Restrooms, water, Vending
Cameras
3 live
Clear driving conditions expected
Rest stops in this segment:
- ● Alameda County Industries 🚻
- ● Hunter Hill Rest Area 🚻 🥤 🪑
- ● Pilot Travel Center
Weather May Slow Traffic
Active weather advisory — expect slower travel · 31 construction zones on route
31 Construction Zones on Route
CA-82: Lane 2 of 1 closed for utility work at Belmont Ave
San Mateo, CA
CA-82 northbound: Lane 1 of 2 closed for miscellaneous work between Bellevue Ave and Sanchez Ave
San Mateo, CA
CA-82 northbound: Lane 1 of 2 closed for miscellaneous work between Hilltop Rd and Peninsula Ave
San Mateo, CA
I-80: Local road lane closed for bridge repair
Contra Costa, CA
CA-273 northbound: Alternating lane closures (lanes Median, 1, RShoulder of 2) for bridge work at Spring Gulch Rd
Shasta, CA
I-5: Lane 2 of 3 closed for bridge work between 1.1 mi south of Antlers Rd (Lakehead) and Lakeshore Dr/Antlers Rd
Shasta, CA
+ 25 more zones along the route — see map for full list
Traffic Cameras
See recent road conditions along your route
Images are snapshots updated periodically by state DOTs. Timestamps shown in images indicate when each photo was captured.
Choose your route:
Selected Route
Via I-880 North → I-80 East → I-505 North
Cameras shown are along this computed route
Need a custom route?
CA-92 - TVE03 -- SR-92 : San Mateo Bridge Substation 2 - Median
San Mateo, CA ·
CA-128 - Hwy 128 at Main St (Winters)
Winters, CA ·
I-5 - Hwy 5 at Williams NB
Williams, CA ·
I-5 - Red Bluff
Red Bluff, CA ·
I-5 - Deschutes
Anderson, CA ·
I-5 - Dunsmuir
Dunsmuir, CA ·
I-5 - Anderson Grade
Yreka, CA ·
I-5 at Table Rock
OR ·
I-5 at Barton Rd
OR ·
I-5 at Sutherlin
OR ·
I-5 at Near ORE 225 McVay Hwy
OR ·
I-5 at South Salem - Enchanted Way
OR ·
Rest Stops Along Your Route
52 stops available
Swipe to see moreShowing 1-2 of 52
Get Weather Alerts for This Route
We'll notify you when conditions change before your trip. Never drive into a surprise storm again.
⚡ Recent Weather Events on This Route
Premium users received alerts for these conditions:
- 🌧️Sep 28: Rain advisory for afternoon departures
- ❄️Sep 26: Snow expected at higher elevations - consider earlier departure
- 🌫️Sep 23: Dense fog warning for morning travel
Don't miss the next alert →
Driving from San Mateo, CA to Portland, OR covers 550 miles in roughly 11h of drive time, crossing state lines. We track 12 live traffic cameras, 52 rest areas and 1 active weather alert along this corridor so you can plan around them. On a drive this length, weather can change dramatically between stops. Use the segment-by-segment forecast below to time your route.
7-Day Driving Outlook
Today
Sep 30
82° / 56°
No precip
Tomorrow
Oct 1
80° / 56°
No precip
Fri
Oct 2
82° / 59°
No precip
Sat
Oct 3
80° / 58°
No precip
Sun
Oct 4
82° / 58°
No precip
Mon
Oct 5
78° / 58°
No precip
Tue
Oct 6
73° / 57°
No precip
🗓️ Weekend Outlook
Saturday
Good to Go☁️ Overcast at origin, ⛅ Partly cloudy at destination
Sunday
Good to Go☀️ Clear sky at origin, 🌤️ Mainly clear at destination
Plan This Route
Get hour-by-hour weather forecasts, real-time traffic, and find the optimal departure time.
🚗 Live traffic included
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Current Conditions
San Mateo, CA
57°F
Wind: 6 mph
Portland, OR
62°F
Wind: 5 mph
Weather data updated in real-time
Driving from San Mateo, CA to Portland, OR
The 550-mile drive from San Mateo, California to Portland, Oregon takes approximately 11h under normal conditions. Weather along this route can vary significantly, especially through mountainous terrain where elevation changes can bring sudden weather shifts. Route Outlook helps you find the safest time to travel by showing you weather conditions at every point along your route, timed to when you'll actually be there.
This long-distance route crosses state lines from California into Oregon, connecting San Mateo and Portland. Covering 550 miles, this is a substantial drive that will take you through diverse terrain and weather patterns. Planning ahead with real-time conditions along the entire route — not just at your destination — is essential for a safe trip.
Common Weather Hazards on This Route
- Dense fog, especially during early morning hours
- Extreme heat and dust storms in desert regions
- Flash floods during monsoon season (July through September)
Seasonal Driving Considerations
Mountain passes along this corridor can be treacherous from October through May, with chain requirements, road closures, and whiteout conditions at higher elevations. Summer brings its own challenges — afternoon thunderstorms are common above 7,000 feet, and construction season narrows lanes on key highways. Always check pass conditions before departing, and carry emergency supplies during the colder months.
Best Time to Drive San Mateo to Portland
For long drives like this 550-mile journey, planning is essential. Consider breaking the trip into segments if weather looks challenging. The best approach is to check conditions for multiple departure times using Route Outlook's optimizer, which considers weather at each point when you'll actually be there.
Driving Strategy
Covering 550 miles from San Mateo to Portland is a full-day or multi-day drive that requires advance planning. Break the route into manageable segments, planning fuel and rest stops every 2-3 hours. Weather that looks fine at departure may deteriorate significantly at the midpoint. Consider booking overnight accommodation if the forecast shows deteriorating conditions in the latter half. Route Outlook's segment-level weather data helps you identify exactly where and when conditions will change.
Pro Tip
Use Route Outlook's departure optimizer to find the best time to leave. Our 4D trajectory engine considers weather at each point along your route at the exact time you'll be there — not just at your destination. It also integrates live data from traffic cameras, DOT 511 feeds, and road weather sensors.
Frequently Asked Questions
How long is the drive from San Mateo to Portland?
The drive is approximately 550 miles and takes about 11h under normal traffic and weather conditions. Severe weather can add significant time to your trip.
What's the best day to drive this route?
Based on current forecasts, Tuesday, Oct 6 looks ideal. Clear conditions expected along the entire route
Is it safe to drive from San Mateo to Portland today?
Current conditions show medium risk along this route. Conditions look favorable for travel. Always stay alert and adjust speed for changing conditions.
Are there rest areas on the San Mateo to Portland route?
Yes, there are 52 rest areas along this route. Facilities include restrooms, parking, and in some cases picnic areas and vending machines. Rest stops are spaced throughout the drive, so you'll never be too far from a break.
Can I see live traffic cameras on this route?
Yes, Route Outlook shows 12 live traffic cameras along this route, sourced from state DOT feeds. You can check road visibility, traffic flow, and pavement conditions in real time before and during your drive.
What highways does this route use?
This route primarily uses CA 92, Other. Conditions can vary between highway segments, so check live camera feeds and road condition reports for each stretch before departing.
Are there any road closures on this route right now?
No significant incidents or road closures are currently reported along this route. Conditions can change quickly — this page updates automatically with the latest data from state DOT 511 systems.
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🛡️Road Safety Features: Real-Time Conditions for Your Route
Real-time traffic incidents from 12 states, highway message signs, road conditions, and 25,000+ traffic cameras--integrated into your route planning.
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