How far is Lake Nacimiento, CA from San Diego, CA?
The driving distance from Lake Nacimiento, CA to San Diego, CA is about 347.8 miles (559.7 km), with a travel time of about 06h 02m by car.
- The straight-line flight distance is about 297.2 miles (478.3 km).
- For a round trip, plan for roughly 12h 04m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 06h 02m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census-designated place in Los Angeles County, California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Lake Nacimiento and San Diego.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lake Nacimiento and San Diego.
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1
Start on Equestrian Road
2399 ft · 2 min · Equestrian Road
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2
Turn left onto Heritage Fire Road
2594 ft · 1 min · Heritage Fire Road
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3
At the end of the road, turn left onto Gateway Drive
1.4 mi · 3 min · Gateway Drive
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4
At the end of the road, turn right onto Nacimiento Lake Drive
4.5 mi · 8 min · Nacimiento Lake Drive
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5
At the end of the road, turn left onto Nacimiento Lake Drive
7.5 mi · 10 min · Nacimiento Lake Drive
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6
Continue on 24th Street
1.4 km · 2 min · 24th Street
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7
Continue straight
24.5 mi · 29 min
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8
Merge slight left
1.4 mi · 2 min
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9
Turn slight right
149 m · 6 sec
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10
Keep slight left to continue on Antelope Road
5.3 mi · 7 min · Antelope Road
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11
Continue on Paso Robles Highway
32.3 mi · 39 min · Paso Robles Highway
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12
Take the exit slight right
2047 ft · 25 sec
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13
Merge slight left onto Westside Freeway
56.8 mi · 1 hr 1 min · Westside Freeway
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14
Keep slight right
58.4 mi · 1 hr 7 min
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15
Keep slight left to continue on Golden State Freeway
4.1 mi · 5 min · Golden State Freeway
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16
Keep slight right to continue on I 405 South
1354 ft · 18 sec
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17
Keep slight left
24.7 mi · 29 min
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18
Keep slight left to continue on Golden State Freeway
1.3 mi · 2 min · Golden State Freeway
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19
Merge slight left onto Santa Ana Freeway
25.7 mi · 30 min · Santa Ana Freeway
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20
Keep slight right to continue on Santa Ana Freeway
1241 ft · 16 sec · Santa Ana Freeway
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21
Take the exit slight right toward Broadway, Main Street, Santa Ana
1.3 km · 57 sec
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22
Keep slight left
788 ft · 10 sec
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23
Keep slight left to continue on I 5 South
981 ft · 13 sec
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24
Merge slight left onto Santa Ana Freeway
1.3 km · 54 sec · Santa Ana Freeway
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25
Keep slight right to continue on Santa Ana Freeway
1.2 km · 52 sec · Santa Ana Freeway
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26
Keep slight right to continue on Santa Ana Freeway
1.2 mi · 1 min · Santa Ana Freeway
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27
Take the exit slight right toward Newport Avenue
1.2 km · 1 min
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28
Turn right onto Newport Avenue
1943 ft · 44 sec · Newport Avenue
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29
Turn left onto Walnut Avenue
2.2 mi · 4 min · Walnut Avenue
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30
Turn left onto Jamboree Road
2595 ft · 38 sec · Jamboree Road
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31
Take the exit slight right toward I 5 South
1479 ft · 21 sec
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32
Merge slight left onto Santa Ana Freeway
5.5 mi · 6 min · Santa Ana Freeway
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33
Keep slight left to continue on Santa Ana Freeway
1.3 km · 56 sec · Santa Ana Freeway
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34
Merge slight right onto San Diego Freeway
76.5 mi · 1 hr 29 min · San Diego Freeway
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35
Take the exit slight right toward Front Street, Civic Center, 2nd Avenue
1164 ft · 28 sec
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36
Keep slight right to continue on Front Street, Civic Center
592 ft · 15 sec
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37
Continue on Front Street
2662 ft · 2 min · Front Street
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38
Arrive at your destination
0 m · 1 sec · Front Street
Car Route Details
A richer read on the saved driving route between Lake Nacimiento and San Diego.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
San Diego Freeway
Merge slight right onto San Diego Freeway
76.5 mi · 01h 29m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Sunny leaving Lake Nacimiento and Partly Sunny near San Diego.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lake Nacimiento to San Diego?
The road trip is about 347.8 miles (559.7 km) and usually takes 06h 02m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Val Verde is a useful midpoint, sitting about 171.1 miles from Lake Nacimiento and 176.6 miles from San Diego.
How much longer is the road route than the straight-line distance?
The direct path is about 297.2 miles (478.3 km), while the road route adds roughly 50.6 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 7:30 AM PDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $70.79 one way or $141.57 round trip. Estimated CO2 is about 109 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Lake Nacimiento and Partly Sunny near San Diego.
Stop Ideas Near Val Verde
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Val Verde.
Santa Clarita-Newhall, California
Simi Valley
Chatsworth station
Fillmore, California
Flight Path Map
This map shows the direct air route between Lake Nacimiento and San Diego. Straight-line distance: 297.22 mi (478.33 km).
#1 Lake Nacimiento
Census designated place
| Population | 2,411 |
| Coordinates | 35.7283000, -120.8796300 |
| Altitude | 300 |
| Country | United States |
#2 San Diego
The eighth most populous city in the United States and the center of the San Diego metropolitan area.
| Population | 1,422,420 |
| Coordinates | 32.7157100, -117.1647200 |
| Altitude | 20 |
| Country | United States |
End: Front Street (-117.164717, 32.71571)
Estimated Travel Time
Distance: 560 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 35m |
| 40 mph (64.37 km/h) | 08h 41m |
| 50 mph (80.47 km/h) | 06h 57m |
| 60 mph (96.56 km/h) | 05h 47m |
| 70 mph (112.65 km/h) | 04h 58m |
| 80 mph (129 km/h) | 04h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $70.79 | $141.57 |
| Mid-grade | $6.07 | $74.43 | $148.86 |
| Premium | $6.24 | $76.60 | $153.20 |
| Diesel | $7.57 | $92.85 | $185.69 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in California · Apr 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.