Origin
Modesto, CA
Afternoon in Modesto on Monday
Local time
12:30 PM
PDT
Current temp
51°F
Unavailable
Live forecast
Trip from Modesto, CA to San Diego, CA
Drive Time
8h 15m
Distance
432.7 mi
696 km
Drive Score
7/10
Good drive
Same Day?
2-day trip
Fuel Cost
$100
one way
EV Charging
Loading...
station data
Best Time to Leave
4 AM
8h 8m
★
6 AM
8h 16m
8 AM
8h 31m
10 AM
8h 21m
12 PM
8h 20m
3 PM
8h 22m
5 PM
8h 30m
8 PM
8h 11m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Modesto, CA
Wikimedia Commons
San Diego, CA
Lindsey Willard
Trip Overview
The drive from Modesto, CA to San Diego, CA covers 432.7 miles and takes about 8h 15m behind the wheel. It usually feels better as a 2-day road trip than as one long push.
The route leans on CA 99, Golden State Freeway, San Diego Freeway for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 134.8 miles on CA 99. At current regular gas prices, budget about $100.20 one way before food or hotel costs.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
216.3 miles from Modesto, CA
A natural place for your longest stop of the day , about 4h into the drive .
Drive Character
This is a 8h 15m highway drive covering 432.7 miles, with most of the trip on CA 99 and Golden State Freeway. The longest continuous stretch is about 134.8 miles on CA 99.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 33 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
CA 99 is the longest continuous segment at about 134.8 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on CA 99 and Golden State Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 199.2 miles in near CA 99 / Golden State Freeway.
Route Complexity
10/10
High effort - long or complex enough to need steady focus all day
This is a demanding drive. With 29 significant decision points across 432.7 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 199.2 miles (CA 99 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 288.9 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 313.9 miles (I 5 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 29 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
7
199.2 mi into trip
|
~3h 41m in
|
CA 99 / Golden State Freeway
Keep slight left at fork onto CA 99 / Golden State Freeway toward CA 99 South: Los Angeles
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward CA 99 South: Los Angeles
8
288.9 mi into trip
|
~5h 23m in
|
I 5 Truck
Keep slight right at fork onto I 5 Truck toward I 405 South
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Exit 158
Toward I 405 South
8
313.9 mi into trip
|
~5h 52m in
|
I 5 / Golden State Freeway
Keep slight left at fork onto I 5 / Golden State Freeway toward CA 60 East, I 5 South: Pomona, Soto Street, Santa Ana
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / straight lanes.
Toward CA 60 East, I 5 South: Pomona, Soto Stre...
8
348.3 mi into trip
|
~6h 35m in
|
Jamboree Road
Turn left onto Jamboree Road toward CA 261 Toll North: Jamboree Road, Riverside
Lane positioning matters here. Multiple destination signs - pick the right one
Use the left lane.
Toward CA 261 Toll North: Jamboree Road, Rivers...
8
431.9 mi into trip
|
~8h 13m in
Take the exit toward Front Street, Civic Center, 2nd Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 17
Toward Front Street, Civic Center, 2nd Avenue
Towns Along This Route
Between Modesto, CA and San Diego, CA, road signs point toward Santa Ana, Broadway and Riverside.
Santa Ana
313.9 mi in
|
~5h 52m
|
via I 5
Broadway
341.1 mi in
|
~6h 24m
Riverside
348.3 mi in
|
~6h 35m
|
via Jamboree Road
Main Roads
| Road | Distance | Duration |
|---|---|---|
| CA 99 | 134.8 mi | 2h 31m |
| Golden State Freeway | 96.1 mi | 1h 48m |
| San Diego Freeway | 76.5 mi | 1h 29m |
| Golden State Highway | 58.6 mi | 1h 2m |
| Santa Ana Freeway | 35 mi | 40m |
| I 5 Truck | 25 mi | 29m |
| Walnut Avenue | 2.2 mi | 4m |
| Front Street | 0.5 mi | 1m |
Longest stretch:
CA 99
— 134.8 mi, about 2h 31m
Turn-by-Turn Driving Directions
Step-by-step road directions between Modesto, CA and San Diego, CA.
1
Start on 11th Street
81 ft
·
10 sec
·
11th Street
2
Turn left onto H Street
0.4 mi
·
1 min
·
H Street
3
Take the ramp
0.2 mi
·
28 sec
4
Merge onto CA 99
94 mi
·
1 hr 47 min
·
CA 99
Use the straight / slight right lanes.
5
Keep slight left at fork onto CA 99
41 mi
·
44 min
·
CA 99
Use the straight / slight right lanes.
6
Keep slight left at fork onto CA 99
59 mi
·
1 hr 2 min
·
Golden State Highway
Use the straight / slight right lanes.
7
Continue on CA 99
5.2 mi
·
5 min
·
Golden State Freeway
Use the straight / slight right lanes.
8
Keep slight left at fork onto CA 99
27 mi
·
30 min
·
Golden State Freeway
Toward CA 99 South: Los Angeles
Use the straight / slight right lanes.
9
Keep slight left at fork onto CA 99
58 mi
·
1 hr 6 min
·
Golden State Freeway
Use the straight / slight right lanes.
10
Keep slight left at fork onto I 5
4.1 mi
·
4 min
·
Golden State Freeway
Use the straight / slight right lanes.
11
Keep slight right at fork onto I 5 Truck
0.3 mi
·
17 sec
·
I 5 Truck
Exit 158
Toward I 405 South
Use the straight / slight right lanes.
12
Keep slight left at fork onto I 5 Truck
25 mi
·
29 min
·
I 5 Truck
Use the straight / slight right lanes.
13
Keep slight left at fork onto I 5
1.3 mi
·
1 min
·
Golden State Freeway
Toward CA 60 East, I 5 South: Pomona, Soto Street, Santa Ana
Use the slight left / straight lanes.
14
Merge onto I 5
26 mi
·
30 min
·
Santa Ana Freeway
Use the straight / slight right lanes.
15
Keep slight right at fork onto I 5
0.2 mi
·
16 sec
·
Santa Ana Freeway
Use the straight / slight right lanes.
16
Take the exit
0.8 mi
·
57 sec
Toward Broadway, Main Street, Santa Ana
Use the straight / slight right lanes.
17
Keep slight left at fork
0.1 mi
·
10 sec
Use the straight / slight right lanes.
18
Keep slight left at fork
0.2 mi
·
12 sec
Toward I 5 South
19
Merge onto I 5
0.8 mi
·
54 sec
·
Santa Ana Freeway
20
Keep slight right at fork onto I 5
0.8 mi
·
52 sec
·
Santa Ana Freeway
21
Keep slight right at fork onto I 5
1.2 mi
·
1 min
·
Santa Ana Freeway
Use the straight / slight right lanes.
22
Take the exit
0.7 mi
·
1 min
Exit 102
Toward Newport Avenue
Use the slight right lane.
23
Turn right onto Newport Avenue
0.4 mi
·
44 sec
·
Newport Avenue
Use the right lane.
24
Turn left onto Walnut Avenue
2.2 mi
·
4 min
·
Walnut Avenue
25
Turn left onto Jamboree Road
0.5 mi
·
37 sec
·
Jamboree Road
Toward CA 261 Toll North: Jamboree Road, Riverside
Use the left lane.
26
Take the exit
0.3 mi
·
21 sec
Toward I 5 South
27
Merge onto I 5
5.5 mi
·
6 min
·
Santa Ana Freeway
Use the straight / slight right lanes.
28
Keep slight left at fork onto I 5
0.8 mi
·
55 sec
·
Santa Ana Freeway
Use the straight / slight right lanes.
29
Merge onto I 5
76 mi
·
1 hr 29 min
·
San Diego Freeway
Use the straight / slight right lanes.
30
Take the exit
0.2 mi
·
28 sec
Exit 17
Toward Front Street, Civic Center, 2nd Avenue
Use the straight / slight right lanes.
31
Keep slight right at fork
0.1 mi
·
14 sec
Toward Front Street, Civic Center
32
Continue on Front Street
0.5 mi
·
1 min
·
Front Street
Use the straight / left lanes.
33
Arrive at destination
Front Street
Trip Plan
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 216.3 miles from Modesto, CA, or about 4h into the drive.
The longest continuous stretch on this route runs about 134.8 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 95 miles or 1h 49m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 216.3 miles or 4h in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 216.3 miles or 4h
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 7h 4m
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 Modesto, 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Modesto, CA
Aim for roughly 216 miles and 4.1 hours of wheel time on this day.
Day 2
Finish the approach into San Diego, CA
Aim for roughly 216 miles and 4.1 hours of wheel time on this day.
Your first comfortable stop window is around 95 miles from Modesto, CA.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on CA 99 for about 134.8 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 216.3 mi from Modesto, CA · 4h into the drive
Mid-route town
Overnight candidate
216 mi into the route
Best for: Hotel check-in, dinner, and a fresh start
This lines up well with a realistic day-end stop if you are breaking the drive into stages.
Find hotels in Santa Clarita, CAOvernight Options
Night 1
216 mi · about 4.1h in
A practical overnight split lands near Santa Clarita, CA after about 216 miles or 4.1 hours of driving.
Find hotelsPacing Suggestions
Fuel and coffee
A short stop after about 95 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 216.3 miles from Modesto, CA, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before CA 99 if your tank is already low. That segment runs about 134.8 miles.
Overnight split
Hotel stopFor a steadier pace, wrap day one after about 216 miles or 4.1 hours on the road.
Arriving in San Diego, CA
The final approach into San Diego, CA usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around San Diego, CA.
On a multi-day trip, keep the last day a little lighter so you reach San Diego, CA with some flexibility left in the schedule.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$100.20 one way
$200.40 round trip
$5.88/gal
25.4 MPG avg
151 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $6.07 | $103.34 | $206.67 |
| premium | $6.24 | $106.35 | $212.70 |
| diesel | $5.64 | $96.13 | $192.26 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$100
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$230–$340
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 151.4 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $45 in charging · 1 stop · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 129.8 | 1 | $45.43 | $20.77 |
| Efficient EV | 108.2 | 1 | $37.86 | $17.31 |
| EV Truck/SUV | 173.1 | 2 | $60.58 | $27.69 |
Gas CO2
151 kg
EV CO2
51 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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.
Destination
San Diego, CA
Afternoon in San Diego on Monday
Local time
12:30 PM
PDT
Current temp
72°F
Unavailable
Live forecast
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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
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
21 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
8h 15m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Modesto, CA to San Diego, CA covers 432.7 miles and takes about 8h 15m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are CA 99, Golden State Freeway, San Diego Freeway. Most of the drive stays on highways, so watch for ramps and exits.
Consider an overnight stop or starting very early.
Yes. This route is usually more comfortable as a 2-day drive. A sensible stopping point is after roughly 216 miles on day one.
The midpoint is about 216.3 miles from Modesto, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $100.20 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 29 significant decision points across 432.7 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 199.2 miles (CA 99 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 288.9 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 313.9 miles (I 5 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Modesto, CA and San Diego, CA, road signs point toward Santa Ana, Broadway and Riverside.
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