Orange County Climate and Average Weather
Climate of Orange County: average temperatures, rainfall and seasons month by month.
Climate in Orange County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 67° | 48° | 1,5 in | ★★★★☆ |
| February | 67° | 50° | 4,8 in | ★★★☆☆ |
| March | 70° | 51° | 2,0 in | ★★★★☆ |
| April | 72° | 53° | 0,4 in | ★★★★★ |
| May | 74° | 56° | 0,4 in | ★★★★★ |
| June | 78° | 59° | 0,1 in | ★★★★★ |
| July | 82° | 62° | 0,1 in | ★★★★★ |
| August | 87° | 64° | 0,0 in | ★★★★★ |
| September | 84° | 64° | 0,7 in | ★★★★★ |
| October | 81° | 59° | 0,7 in | ★★★★★ |
| November | 72° | 52° | 2,2 in | ★★★★☆ |
| December | 68° | 50° | 2,6 in | ★★★★☆ |
Climate type: Mediterranean. Source: Open-Meteo archive (ERA5).
Recent extremes in Orange County
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Orange County compares with nearby places
Annual averages, and the difference against Orange County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| ZIP Code 90001 | 30 mi | 65°F | about the same | 19 in |
| Riverside County | 30 mi | 66°F | +34°F warmer | 15 in |
| Downtown Los Angeles | 33 mi | 65°F | about the same | 21 in |
| Los Angeles | 33 mi | 65°F | about the same | 21 in |
| Los Angeles County | 33 mi | 65°F | about the same | 21 in |
Climate by attraction in Orange County
1 attractions mapped in this atlas
Best time to visit Orange 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 December - expect the least comfortable mix of heat, cold or rain.
What this means for Orange County
Today is slightly cooler than average for October. The forecast high of 75°F is 6.1°F below the 81°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 49°F.
What to pack, what to skip
- Sunglasses, a brimmed hat and SPF 30+
- A packable rain shell - 2 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
Summary
Orange County is a county in California. Orange County is a county in the United States. It has a population of about 3.2 million.
Right now it is 61°F (16°C) in Orange County with overcast. It feels like 61°F. Today runs from 59°F to 75°F. Chance of precipitation is 0%. Sightseeing conditions score 9.8/10 - excellent - go now.
The best time to visit Orange County is April, May, June, July, August, September and October. The climate is Mediterranean. January, February and December tend to be the least comfortable months. August is the warmest month with average highs near 87°F, while January is the coldest with lows near 48°F.
The closest major airport is Los Angeles International Airport (LAX), about 37 mi away. Nearby highlights include Disneyland Resort, Hollywood Sign, Santa Monica State Beach and Coronado Beach.
In plain terms. Today is slightly cooler than average for October. The forecast high of 75°F is 6.1°F below the 81°F typical for this month. The best window to be outside is roughly 5 PM to 8 PM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in Orange County today at 9.8/10. 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.
Quick facts about Orange County
| Type | County |
|---|---|
| State | California |
| Country | United States |
| Continent | North America |
| Coordinates | 33°43′3″N 117°49′52″W (33.7175, -117.8311) |
| Population | 3.150.000 |
| Local time | 6:53 AM (UTC-07:00) |
| Best months | April, May, June, July, August, September and October |
| Climate | Mediterranean |
Weather map for Orange County
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Orange County
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Orange County?
Orange County is a county in California. Its coordinates are 33.7175, -117.8311. It lies in North America.
What is the weather like in Orange County right now?
It is currently 61°F (16°C) with overcast. Humidity is 83% and wind is 4 mph.
When is the best time to visit Orange County?
April, May, June, July, August, September and October offer the most comfortable conditions in Orange County, which has a Mediterranean climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Orange County in?
Orange County observes America/Los_Angeles (UTC-07:00). The local time is 6:53 AM.
How many people live in Orange County?
Orange County has a population of approximately 3.2 million.
What is the nearest airport to Orange County?
The closest airports are Los Angeles International Airport (LAX), 37 mi away, San Diego International Airport (SAN), 77 mi away and Harry Reid International Airport (LAS), 223 mi away.
What are the top things to do in Orange County?
Popular options include Disneyland Resort, Hollywood Sign, Santa Monica State Beach, Coronado Beach, Anza-Borrego Desert State Park and Joshua Tree National Park.
What places are in Orange County?
Orange County covers 1 places in this atlas, including Disneyland Resort.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| 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 October 28, 2026 at 6:53 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
