Located in the southern part of Orange County, California, Aliso Viejo is a vibrant and beautiful city known for its suburban charm, natural beauty, and strong sense of community. Situated approximately 50 miles southeast of Los Angeles, Aliso Viejo is bordered by the cities of Laguna Beach, Laguna Hills, and Laguna Niguel, offering residents and visitors easy access to pristine beaches, scenic hiking trails, and world-class amenities. With a population of around 50,000 residents, Aliso Viejo is a dynamic and diverse community that boasts a thriving economy, top-rated schools, and a variety of recreational opportunities for people of all ages.
Geography and Location
Aliso Viejo is located in the San Joaquin Hills of southern Orange County, California, overlooking the Pacific Ocean to the west. The city’s location provides residents with stunning views of the surrounding hillsides, canyons, and coastal landscapes, making it a popular destination for outdoor enthusiasts and nature lovers. Aliso Viejo covers an area of approximately 7.5 square miles, with a mix of residential neighborhoods, commercial districts, and preserved open space. The city’s proximity to major highways and transportation hubs makes it easily accessible from nearby cities and attractions.
Affiliation and Population
As part of Orange County, California, Aliso Viejo is governed by the laws and regulations of the state and county. The city has a diverse population of approximately 50,000 residents, representing a wide range of ethnicities, cultures, and backgrounds. Aliso Viejo is known for its strong sense of community and active civic engagement, with residents participating in local events, volunteering for community organizations, and working together to maintain the city’s high quality of life. With top-rated schools, safe neighborhoods, and a thriving business community, Aliso Viejo attracts families, professionals, and retirees alike.
Major Landmarks
Aliso Viejo is home to several major landmarks and attractions that showcase its natural beauty, cultural heritage, and recreational opportunities. One of the city’s most iconic landmarks is the Aliso and Wood Canyons Wilderness Park, a sprawling nature reserve that encompasses over 4,500 acres of preserved open space. The park features miles of hiking and biking trails, scenic overlooks, and picnic areas, providing visitors with a peaceful retreat amidst the beauty of the surrounding hillsides and canyons.
Another notable landmark in Aliso Viejo is the Aliso Viejo Town Center, a bustling shopping and entertainment district that serves as the city’s central hub for dining, shopping, and recreation. The Town Center features a variety of shops, restaurants, and entertainment venues, as well as a movie theater, bowling alley, and outdoor amphitheater, making it a popular destination for residents and visitors alike.
Climate and Weather Overview
Aliso Viejo enjoys a Mediterranean climate, characterized by mild, wet winters and warm, dry summers. The city’s coastal location and proximity to the Pacific Ocean moderate its climate, resulting in relatively stable temperatures and low humidity year-round. While Aliso Viejo experiences occasional heatwaves and Santa Ana winds during the summer months, its coastal location provides relief from extreme heat and humidity, making it an ideal destination for outdoor activities and recreation throughout the year.
Average Climate Data
The table below provides average temperature, precipitation, and sunny days for each month in Aliso Viejo:
| Month | Average Temperature (Fahrenheit) | Precipitation (inches) | Sunny Days |
| January | 64.6 | 2.80 | 21 |
| February | 65.2 | 3.00 | 21 |
| March | 66.9 | 2.37 | 23 |
| April | 68.8 | 0.78 | 25 |
| May | 71.9 | 0.19 | 26 |
| June | 76.8 | 0.08 | 28 |
| July | 80.2 | 0.00 | 30 |
| August | 80.6 | 0.02 | 29 |
| September | 79.1 | 0.17 | 28 |
| October | 74.6 | 0.50 | 26 |
| November | 68.6 | 1.05 | 23 |
| December | 65.3 | 2.01 | 21 |
Weather by Month
January
January in Aliso Viejo is mild and relatively wet, with average highs averaging around 64.6°F. Average lows remain cool, ranging from 45°F to 49°F. Precipitation levels are relatively high during this time, with an average of 2.80 inches of rainfall. Residents may choose to explore indoor attractions such as museums, art galleries, and shopping centers, or take advantage of breaks in the rain to enjoy outdoor activities such as hiking, biking, and exploring local parks.
February
February brings similar weather conditions to Aliso Viejo, with mild temperatures and occasional rainfall. Average highs reach 65.2°F, while average lows remain cool, ranging from 45°F to 49°F. Precipitation levels increase slightly compared to January, with an average of 3.00 inches of rainfall. Residents may spend time outdoors enjoying the city’s parks and green spaces, or attending cultural events and festivals celebrating the Lunar New Year and Valentine’s Day.
March
As spring approaches, March sees a gradual increase in temperatures and decreasing rainfall in Aliso Viejo. Average highs average around 66.9°F, while average lows range from 47°F to 51°F. Precipitation levels decrease, with an average of 2.37 inches of rainfall. Residents can embrace the changing seasons by visiting local gardens and botanical parks to admire spring blooms, or participating in outdoor activities such as picnicking, birdwatching, and photography.
April
April is characterized by mild temperatures and decreasing rainfall in Aliso Viejo, with average highs reaching 68.8°F. Average lows range from 49°F to 53°F. Precipitation levels drop significantly compared to March, with an average of 0.78 inches of rainfall. Residents may take advantage of the pleasant weather to explore the city’s outdoor attractions, such as beaches, hiking trails, and nature reserves, or participate in community events and activities such as Earth Day celebrations and outdoor concerts.
May
May brings warmer temperatures and drier conditions to Aliso Viejo, with average highs averaging around 71.9°F. Average lows remain mild, ranging from 53°F to 57°F. Precipitation levels decrease further, with an average of 0.19 inches of rainfall. Residents may spend time outdoors enjoying recreational activities such as beach outings, surfing, and paddleboarding, or attending local festivals and events celebrating Cinco de Mayo and Memorial Day.
June
June is characterized by warm temperatures and sunny skies in Aliso Viejo, with average highs averaging around 76.8°F. Average lows range from 57°F to 61°F. Precipitation levels are minimal during this time, with an average of 0.08 inches of rainfall. Residents can take advantage of the longer daylight hours and warmer weather to engage in outdoor activities such as hiking, biking, and picnicking in the city’s parks and recreational areas.
July
July is the warmest and driest month of the year in Aliso Viejo, with average highs peaking at 80.2°F. Average lows remain mild, ranging from 61°F to 65°F. Precipitation levels are virtually nonexistent during this time, with an average of 0.00 inches of rainfall. Residents may spend their days lounging at the beach, swimming in the ocean, or enjoying outdoor barbecues and picnics with family and friends.
August
August sees similar weather conditions to July in Aliso Viejo, with warm temperatures and abundant sunshine. Average highs remain around 80.6°F, while average lows stay mild, ranging from 61°F to 65°F. Precipitation levels remain minimal, with an average of 0.02 inches of rainfall. Residents may continue to enjoy outdoor activities such as beach outings, hiking, and biking, or cool off indoors at air-conditioned shopping centers and entertainment venues.
September
As summer transitions into fall, September brings slightly cooler temperatures and increasing humidity to Aliso Viejo. Average highs drop to 79.1°F, while average lows range from 61°F to 65°F. Precipitation levels rise slightly compared to August, with an average of 0.17 inches of rainfall. Residents can still enjoy outdoor activities such as beach days, outdoor concerts, and hiking, or explore the city’s cultural attractions and museums.
October
October is characterized by mild temperatures and increasing rainfall in Aliso Viejo, with average highs averaging around 74.6°F. Average lows range from 57°F to 61°F. Precipitation levels increase significantly compared to September, with an average of 0.50 inches of rainfall. Residents may spend time outdoors enjoying fall foliage, visiting pumpkin patches, or attending Halloween-themed events and festivals throughout the city.
November
November brings cooler temperatures and occasional rainfall to Aliso Viejo, with average highs averaging around 68.6°F. Average lows range from 53°F to 57°F. Precipitation levels peak during this time, with an average of 1.05 inches of rainfall. Residents may opt for indoor activities such as visiting museums, attending theater performances, or cozying up with a book at a local coffee shop.
December
December marks the onset of winter in Aliso Viejo, with mild temperatures and increasing rainfall. Average highs drop to 65.3°F, while average lows range from 49°F to 53°F. Precipitation levels remain high during this time, with an average of 2.01 inches of rainfall. Residents can embrace the holiday season by attending tree lighting ceremonies, shopping for gifts at local boutiques, or enjoying festive events and activities throughout the city.
Natural Disasters
While Aliso Viejo is relatively sheltered from major natural disasters, the region is susceptible to occasional wildfires, earthquakes, and flash floods. These events can disrupt transportation, cause property damage, and pose risks to public safety. Residents are encouraged to stay informed about emergency preparedness and evacuation procedures, as well as to have emergency supplies and evacuation plans in place to ensure their safety and well-being.
Recommended Activities
Throughout the year, Aliso Viejo offers residents and visitors a wide range of indoor and outdoor activities to enjoy amidst the city’s stunning coastal landscapes and vibrant cultural scene. From beach days and hiking trails to shopping excursions and culinary adventures, there is something for everyone to experience and enjoy in this dynamic Southern California city. Whether you’re seeking relaxation, adventure, or cultural enrichment, Aliso Viejo promises an unforgettable experience in the heart of Orange County.