San Diego County Travel Guide
San Diego County travel guide: interactive map, live weather, best time to visit, things to do and nearby places.
Active alerts for San Diego County
Heat Advisory issued August 25 at 3:47AM PDT until August 28 at 8:00PM PDT by NWS San Diego CA
Issued by NWS San Diego CA
Summary
San Diego County is a county in California. San Diego County is a county in the United States. It has a population of about 3.3 million.
Right now it is 75°F (24°C) in San Diego County with clear sky. It feels like 81°F. Today runs from 69°F to 88°F. Chance of precipitation is 1%. Sightseeing conditions score 9.7/10 - excellent - go now.
The best time to visit San Diego County is April, May, June, July, August, September and October. The climate is Mediterranean. January, February and March tend to be the least comfortable months. August is the warmest month with average highs near 78°F, while January is the coldest with lows near 48°F.
The closest major airport is San Diego International Airport (SAN), about 2 mi away. Nearby highlights include Coronado Beach, Anza-Borrego Desert State Park, Disneyland Resort and Joshua Tree National Park.
In plain terms. Today is warmer than average for August. The forecast high of 88°F is 10.1°F above the 78°F typical for this month. The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in San Diego County today at 9.7/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Map of San Diego County
Interactive map with nearby places. Switch between street, terrain and satellite views.
Coordinates: 32°42′56.5″N 117°9′40″W (32.7157, -117.1611)
Weather in San Diego County right now
Source: Open-Meteo. Updated 8:20 AM, Aug 25 local time.
Weekend outlook
☁️ 84° / 75°
Overcast · 1% rain · wind 11 mph
☀️ 80° / 74°
Clear sky · 0% rain · wind 10 mph
Quick facts about San Diego County
| Type | County |
|---|---|
| State | California |
| Country | United States |
| Continent | North America |
| Coordinates | 32°42′56.5″N 117°9′40″W (32.7157, -117.1611) |
| Population | 3.280.000 |
| Local time | 8:20 AM (UTC-07:00) |
| Best months | April, May, June, July, August, September and October |
| Climate | Mediterranean |
Things to do in San Diego County
Attractions, parks and landmarks in and around San Diego County.
Best time to visit San Diego County
Go in April, May, June, July, August, September and October. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and March - expect the least comfortable mix of heat, cold or rain.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid January, February and March - historically the least comfortable months here.
Airports near San Diego County
Closest airports with IATA codes and distances.
| Airport | Code | Distance | Serves |
|---|---|---|---|
| San Diego International Airport | SAN | 2 mi | San Diego |
| Los Angeles International Airport | LAX | 111 mi | Los Angeles |
| Harry Reid International Airport | LAS | 259 mi | Las Vegas |
| Phoenix Sky Harbor International Airport | PHX | 302 mi | Phoenix |
Explore San Diego County
Every topic we hold for this place, and the same topic for the places around it.
Travel Guide for related places
Frequently asked questions
Where is San Diego County?
San Diego County is a county in California. Its coordinates are 32.7157, -117.1611. It lies in North America.
What is the weather like in San Diego County right now?
It is currently 75°F (24°C) with clear sky. Humidity is 84% and wind is 5 mph.
When is the best time to visit San Diego County?
April, May, June, July, August, September and October offer the most comfortable conditions in San Diego County, which has a Mediterranean climate. January, February and March are usually the hardest months for outdoor plans.
What time zone is San Diego County in?
San Diego County observes America/Los_Angeles (UTC-07:00). The local time is 8:20 AM.
How many people live in San Diego County?
San Diego County has a population of approximately 3.3 million.
What is the nearest airport to San Diego County?
The closest airports are San Diego International Airport (SAN), 2 mi away, Los Angeles International Airport (LAX), 111 mi away and Harry Reid International Airport (LAS), 259 mi away.
What are the top things to do in San Diego County?
Popular options include Coronado Beach, Anza-Borrego Desert State Park, Disneyland Resort, Joshua Tree National Park, Santa Monica State Beach and Hollywood Sign.
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| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Map tiles | OpenStreetMap contributors, CARTO and Esri. |
| Elevation | Open-Meteo digital elevation model where the dataset has no value. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 25, 2026 at 8:20 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
