County in California

San Diego County 气候 and Average 天气

气候 of San Diego County: average temperatures, rainfall and seasons month by month.

🌙 20°C now🕔 12:13 AM local📅 Best: 四月, 五月, 六月, 七月, 八月, 九月 and 十月👥 3.3 million

气候 in San Diego County month by month

Average high, average low and total rainfall, based on three years of reanalysis data.

一二三四五六七八九十十十Line: average high · Bars: rainfall
月份Avg highAvg low雨fallRating
一月19°9°61 mm★★★★☆
二月19°10°78 mm★★★★☆
三月20°11°69 mm★★★★☆
四月20°12°12 mm★★★★★
五月20°14°7 mm★★★★★
六月22°16°3 mm★★★★★
七月24°18°0 mm★★★★★
八月26°19°8 mm★★★★★
九月25°18°15 mm★★★★★
十月24°14°21 mm★★★★★
十一月21°11°53 mm★★★★☆
十二月19°10°32 mm★★★★☆

气候 type: Mediterranean. 来源: Open-Meteo archive (ERA5).

Recent extremes in San Diego County

高est and lowest readings observed in the last 3 years of reanalysis data - not all-time records.

Hottest day35°C九月 8, 2026
Coldest night3°C一月 8, 2024
Wettest day58 mm一月 22, 2024

How San Diego County compares,天气为nearby places

Annual averages, and the difference against San Diego County.

PlaceDistanceAvg tempvs hereAnnual rain
San Diego0 km17°Cabout the same359 mm
San Diego International Airport4 km17°Cabout the same359 mm
Coronado Beach4 km17°Cabout the same359 mm
Anza-Borrego Desert State Park93 km24°C+6°C warmer118 mm
Orange County128 km18°C+1°C warmer385 mm

最佳旅游时间 San Diego County

Go in 四月, 五月, 六月, 七月, 八月, 九月 and 十月. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: 一月, 二月 and 三月 - expect the least comfortable mix of heat, cold or rain.

一月★★★★☆
二月★★★★☆
三月★★★★☆
四月★★★★★
五月★★★★★
六月★★★★★
七月★★★★★
八月★★★★★
九月★★★★★
十月★★★★★
十一月★★★★☆
十二月★★★★☆

What this means for San Diego County

Compared,天气为normal

Today is about average for 十月. The forecast high of 24°C is in line,天气为the 24°C typical for this month.

雨 chance explained

雨 is very unlikely today - plans do not need a backup.

旅行 and driving

No weather-related travel disruption is expected today. Roads and airports should run normally.

Worth knowing

Northern Hemisphere, so peak summer falls in 六月至八月.

Worth knowing

The gap between the warmest and coldest month averages 9°C.

What至pack, what至skip

Pack for the next 7 days
  • 周日glasses, a brimmed hat and SPF 30+
Worth avoiding
  • If your dates are flexible, avoid 一月, 二月 and 三月 - historically the least comfortable months here.

摘要

San Diego County is a county in California. San Diego County is a county in the United States. 人口约为3.3 million.

目前气温为20°C (68°F) in San Diego County,天气为晴. 体感温度为21°C. 今天气温在15°C至24°C. 降水概率为7%. Sightseeing conditions score 9.6/10 - 极佳 — 现在适合出行.

最佳旅游时间是San Diego County is 四月, 五月, 六月, 七月, 八月, 九月 and 十月. 气候为Mediterranean. 一月, 二月 and 三月 tend至be the least comfortable months. 八月 is the warmest month,天气为average highs near 26°C, while 一月 is the coldest,天气为lows near 9°C.

The closest major airport is San Diego International Airport (SAN), about 4 km away. Nearby highlights include Coronado Beach, Anza-Borrego Desert State Park, Disneyland Resort and Joshua Tree National Park.

简单来说。 Today is about average for 十月. The forecast high of 24°C is in line,天气为the 24°C typical for this month. The best window至be outside is roughly 9 AM至12 PM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in San Diego County today at 9.6/10. 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 San Diego County

类型County
StateCalifornia
国家美国
大洲北美洲
坐标32°42′56.5″N 117°9′40″W (32.7157, -117.1611)
人口3.280.000
当地时间12:13 AM (UTC-07:00)
Best months四月, 五月, 六月, 七月, 八月, 九月 and 十月
气候Mediterranean

天气 map for San Diego County

Animated model layers. Pick a layer至load it.

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Animated layers by 风y. For pin-level detail and nearby places, see the interactive map below.

Explore San Diego County

Every topic we hold for this place, and the same topic for the places around it.

气候 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 北美洲.

What is the weather like in San Diego County现在?

It is currently 20°C (68°F),天气为晴. 湿度 is 73% and wind is 6 km/h.

When is the best time至visit San Diego County?

四月, 五月, 六月, 七月, 八月, 九月 and 十月 offer the most comfortable conditions in San Diego County, which has a Mediterranean climate. 一月, 二月 and 三月 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 12:13 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至San Diego County?

The closest airports are San Diego International Airport (SAN), 4 km away, Los Angeles International Airport (LAX), 179 km away and Harry Reid International Airport (LAS), 417 km away.

What are the top things至do in San Diego County?

Popular options include Coronado Beach, Anza-Borrego Desert State Park, Disneyland Resort, Joshua Tree National Park, Santa 周一ica State Beach and Hollywood Sign.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts.
预报 and observationsOpen-Meteo (ECMWF and national models).
空气质量 and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
气候 averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National 天气 Service.
MethodScores, 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 十月 25, 2026 at 12:13 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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