Oasis, CA to San Diego, CA is 129.7 miles and takes about 3h 2m via Julian Road, Borrego Salton Seaway, and Montezuma Valley Road, with a fuel budget near $30 and enough daylight to finish in a day. This drive connects the Pacific Coast region to itself, offering a varied experience as you transition from desert landscapes to more populated areas. It's a manageable one-day trip that requires minimal planning, making it a convenient option for a quick getaway. Consider this route if you're looking for a straightforward drive with a predictable duration and cost.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
64.9 miles from Oasis, CA
A natural place for your longest stop of the day
, about 1h 31m into the drive
.
Main Roads
Road
Distance
Duration
Julian Road
22.6 mi
32m
Borrego Salton Seaway
19.7 mi
26m
Montezuma Valley Road
17.4 mi
27m
CA 86
14.9 mi
17m
CA 79
11.3 mi
16m
Scripps Poway Parkway
8.7 mi
12m
Cabrillo Freeway
8.2 mi
9m
Palm Canyon Drive
5.8 mi
10m
Longest stretch:
Julian Road
— 22.6 mi, about 32m
Traffic on I-15
Hour-of-day weekday pattern from 22 FHWA count stations on your route.
Peak
2 PM
~7,689 veh/hr typical
Quietest
1 AM
~674 veh/hr
Peak-to-quiet ratio
11.4×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Oasis, CA and San Diego, CA.
1
Start on Harrison Street
0.2 mi·28 sec·Harrison Street
2
Turn left onto 81st Avenue
0.3 mi·38 sec·81st Avenue
3
Turn right onto CA 86
15 mi·17 min·CA 86
Use the straight lane.
4
Turn right onto S22
0.9 mi·1 min·South Marina Drive
Use the right lane.
5
Continue on S22
20 mi·26 min·Borrego Salton Seaway
6
Continue on S22
2.4 mi·3 min·Peg Leg Road
7
Continue on S22
4.3 mi·7 min·Palm Canyon Drive
8
Enter roundabout onto S22
0.1 mi·11 sec·Palm Canyon Drive
9
Continue on S22
1.4 mi·2 min·Palm Canyon Drive
10
Turn left onto S22
17 mi·27 min·Montezuma Valley Road
Use the left lane.
11
At end of road, turn right onto S2
4.7 mi·6 min·San Felipe Valley Road
12
Turn left onto CA 79
11 mi·16 min·CA 79
13
At end of road, turn right onto CA 78
14 mi·20 min·Julian Road
Use the right lane.
14
Continue on CA 78
0.6 mi·51 sec·East Highway 78
15
Continue on CA 78
3.0 mi·5 min·Main Street
16
Continue on CA 67
8.9 mi·12 min·Julian Road
Use the straight lane.
17
Turn right onto Scripps Poway Parkway
8.7 mi·12 min·Scripps Poway Parkway
Use the right lane.
18
Turn left
0.4 mi·59 sec
Toward I 15 SouthUse the left / uturn lanes.
19
Merge onto I 15
2.3 mi·2 min·Escondido Freeway
Use the slight left lane.
20
Continue on I 15
2.2 mi·2 min·Semper Fi Highway
Use the straight / slight right lanes.
21
Take the exit
0.7 mi·51 sec
Exit 12Toward CA 163 SouthUse the slight right lane.
22
Continue on CA 163
8.2 mi·9 min·Cabrillo Freeway
Toward CA 163Use the straight / slight right lanes.
23
Continue on CA 163
1.5 mi·1 min·Cabrillo Parkway
24
Continue on CA 163
0.8 mi·1 min·Cabrillo Parkway
Use the straight / slight right lanes.
25
Continue on CA 163
0.3 mi·41 sec·10th Avenue
Use the straight / left lanes.
26
Turn right onto Broadway
0.5 mi·1 min·Broadway
27
Turn left onto Front Street
26 ft·0 sec·Front Street
Use the left lane.
28
Arrive at destination
Front Street
Trip Plan
Given this is a single-day drive of just over 3 hours, you have flexibility in when you start. Leaving in the morning will give you plenty of daylight to complete the trip and potentially explore upon arrival in San Diego. Keep an eye on your fuel gauge, especially as you cover longer stretches like the 22.6 miles on Julian Road, as services can be spread out. Budgeting around $30 for fuel should cover the 129.7 miles. Plan for one stop to break up the drive and refuel if needed.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 64.9 miles from Oasis, CA, or about 1h 31m into the drive.
The longest continuous stretch on this route runs about 22.6 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 29 miles or 36m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 64.9 miles or 1h 31m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 31m
Traffic, exits, and arrival timing usually matter more near San Diego, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Oasis, CA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Oasis, CA
This is one driving day of about 129.7 miles and 3h 2m.
Your first comfortable stop window is around 29 miles from Oasis, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Julian Road for about 22.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 15
5 decision points cluster between mile 0.6 and 117.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.6 mi into trip|~1m in|CA 86
Turn right onto CA 86
Lane positioning matters here
Use the straight lane.
6
15.4 mi into trip|~18m in|S22 / South Marina Drive
Turn right onto S22 / South Marina Drive
Lane positioning matters here
Use the right lane.
7
77.7 mi into trip|~1h 50m in|CA 78 / Julian Road
At end of road, turn right onto CA 78 / Julian Road
Lane positioning matters here
Use the right lane.
7
112.6 mi into trip|~2h 41m in
Turn left toward I 15 South
Lane positioning matters here
Use the left / uturn lanes.
Toward I 15 South
7
117.6 mi into trip|~2h 47m in
Take the exit toward CA 163 South
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 12
Toward CA 163 South
Fuel & Cost
Regular Gas
$29.40 one way
$58.79 round trip
$5.76/gal25.4 MPG avg45 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.96
$30.41
$60.83
premium
$6.09
$31.11
$62.22
diesel
$5.40
$27.59
$55.18
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$29
Meals
$25–$50
Total
$54–$79
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 45.4 kg one way.
Prices: EIA weekly data, 2026-04-20.
Driving Electric?
About $14 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
38.9
0
$13.62
$6.23
Efficient EV
32.4
0
$11.35
$5.19
EV Truck/SUV
51.9
0
$18.16
$8.30
Gas CO2
45 kg
EV CO2
15 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 25, 2026
Origin
Oasis, CA
Night
in Oasis on Saturday
Local time
9:18 PM
PDT
Current temp
59°F
Mostly Cloudy
0 mph4% chanceLive forecast
Wind Advisory
Wind Advisory issued April 25 at 2:32AM PDT until April 27 at 5:00AM PDT by NWS Hanford CA
Wind Advisory
Wind Advisory issued April 25 at 12:54AM PDT until April 26 at 11:00AM PDT by NWS Las Vegas NV
Destination
San Diego, CA
Night
in San Diego on Saturday
Local time
9:18 PM
PDT
Current temp
57°F
Slight Chance Rain Showers
SW 0 to 5 mph19% chanceLive forecast
Wind Advisory
Wind Advisory issued April 25 at 2:32AM PDT until April 27 at 5:00AM PDT by NWS Hanford CA
Wind Advisory
Wind Advisory issued April 25 at 12:54AM PDT until April 26 at 11:00AM PDT by NWS Las Vegas NV
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
2 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 2m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Cabrillo National Monument
National Monument
In 1542, Juan Rodriguez Cabrillo climbed out of his boat and onto shore, becoming the first European to set foot on what is now the West Coast of the United States. Cabrillo National Monument not only...
5 mi from route
~13 min detour
$20
near mile 129.7
Park Closure: Park Auditorium Closed Until Further Notice
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
About 37% of this 129.7-mile drive is on highways. You'll encounter your longest stretch of uninterrupted driving on Julian Road, covering 22.6 miles. The road transitions from highway driving to surface roads, so be prepared for changes in speed limits and road conditions. This mixed profile means you'll experience both faster cruising and more deliberate navigation through varied terrain.
37% highway, the rest on surface roads — varied driving throughout.
28 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 22.6 mi on Julian Road.
How Hard Is This Drive?
4/10
This route mixes highway mileage with some local-road sections near the start or finish. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.6 miles in near CA 86.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 3h 2m drive. You will face about 15 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 0.6 miles (CA 86): Lane positioning matters here; at 15.4 miles (S22 / South Marina Drive): Lane positioning matters here; at 77.7 miles (CA 78 / Julian Road): Lane positioning matters here.
From balmy beaches with a laid-back attitude to a gleaming modern image, San Diego offers much for the tourist to enjoy. Situated on the Southern California seacoast, San Diego is the second largest city in the state, with 1.4 million residents (2020), and has long attracted travelers for its ideal climate, miles of beaches, and location on the Mexican border right across from Tijuana.
But there's much more here than surfer culture and a quick hop across the border. A rich maritime and military heritage lives on in San Diego, which is home to the Pacific Fleet of the United States Navy. The city has also become known for its part in the wildlife conservation movement, owing to the presence of the world-renowned San Diego Zoo and Safari Park and the Scripps Institution of Oceanography. Natural scenery abounds from rocky tidepools and seaside cliffs to desert hills and canyons inland.
Top landmarks
•Balboa Park — historic park in San Diego, California
•Cabrillo National Monument — National Monument of the United States and historic district
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 22.6 miles on Julian Road. The full list of main roads is in the Roads section above.
Yes — we found about 3 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
Yes, with realistic expectations. Build in a stop roughly every 2 hours, have snacks and activities ready, and check the Nearby Places tabs for kid-friendly stops along the way.
The main spots that need attention: at 0.6 miles (CA 86): Lane positioning matters here; at 15.4 miles (S22 / South Marina Drive): Lane positioning matters here; at 77.7 miles (CA 78 / Julian Road): Lane positioning matters here.
Yes — Cabrillo National Monument. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 3.0 hours each way, an in-and-out day trip would put you behind the wheel for 6.1 hours — manageable with a long break at San Diego, CA, but most travelers stay overnight.
