County in California

San Diego County 天气 预报

San Diego County weather: 27°C, 晴. 逐小时 forecast, 14-day outlook, UV, air quality and the best time至visit.

🌙 27°C now🕔 10:52 PM local📅 Best: 四月, 五月, 六月, 七月, 八月, 九月 and 十月👥 3.3 million

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27°C (81°F) in San Diego County,天气为晴. 体感温度为29°C. 今天气温在23°C至40°C. 降水概率为0%. Sightseeing conditions score 9.7/10 - 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 much warmer than average for 十月. The forecast high of 40°C is 16.2°C above the 24°C typical for this month. The best window至be outside is roughly 7 AM至10 AM, when temperature, rain chance and wind line up best. swimming is the strongest bet in San Diego County today at 10/10. 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.

Active alerts for San Diego County

⚠️极高 Heat Warning · Severe
极高 Heat Warning issued 十月 3 at 9:40PM PDT until 十月 8 at 8:00PM PDT by NWS San Diego CA
Issued by NWS San Diego CA
⚠️周六, 十月 3: extreme heat, 40°C (104°F). Hydrate and avoid midday sun.
⚠️周日, 十月 4: extreme heat, 38°C (100°F). Hydrate and avoid midday sun.
⚠️周一, 十月 5: extreme heat, 37°C (98°F). Hydrate and avoid midday sun.

天气:San Diego County现在

🌙
27°C
晴 · feels like 29°C
湿度50%
风3 km/h WSW
阵风6 km/h
UV指数0 · 低
云量0%
气压1007 hPa
能见度Excellent · 32 km
空气质量59 · 中等
日出6:44 AM
日落6:30 PM
月亮🌗 Last quarter · 56%

Open-Meteo Updated 10:52 PM, 十月 3 local time.

⚠️周六, 十月 3: extreme heat, 40°C (104°F). Hydrate and avoid midday sun.
⚠️周日, 十月 4: extreme heat, 38°C (100°F). Hydrate and avoid midday sun.
⚠️周一, 十月 5: extreme heat, 37°C (98°F). Hydrate and avoid midday sun.

查看 San Diego County 的分时预报

接下来 24 小时

逐小时温度、降水概率和风力

11 PM🌙27°0%4 km/h
12 AM🌙25°0%5 km/h
1 AM🌙25°0%1 km/h
2 AM🌙25°0%4 km/h
3 AM🌙25°0%5 km/h
4 AM🌙25°0%7 km/h
5 AM🌙26°0%8 km/h
6 AM🌙26°0%8 km/h
7 AM☀️27°0%11 km/h
8 AM☀️30°0%7 km/h
9 AM☀️34°0%7 km/h
10 AM☀️36°0%10 km/h
11 AM☀️38°0%13 km/h
12 PM☀️38°0%14 km/h
1 PM☀️38°0%17 km/h
2 PM☀️36°1%15 km/h
3 PM☀️33°1%14 km/h
4 PM☀️34°1%13 km/h
5 PM☀️33°1%12 km/h
6 PM☀️32°1%11 km/h
7 PM🌙30°1%8 km/h
8 PM🌙29°1%7 km/h
9 PM🌙27°1%8 km/h
10 PM🌙26°1%9 km/h

16-day forecast for San Diego County

最高 / 最低; 降水; UV

日期天气状况最高 / 最低降水风UV
周六, 十月 3☀️ 晴朗40° / 23°0%22 km/h7
周日, 十月 4☀️ 晴朗38° / 25°1%17 km/h7
周一, 十月 5☀️ 晴朗37° / 21°1%17 km/h7
周二, 十月 6☀️ 晴朗32° / 26°0%16 km/h7
周三, 十月 7☀️ 晴朗30° / 26°0%15 km/h7
周四, 十月 8☀️ 晴朗29° / 26°0%16 km/h7
周五, 十月 9☁️ 阴天29° / 24°2%14 km/h6
周六, 十月 10☁️ 阴天24° / 23°4%18 km/h6
周日, 十月 11🌦️ 小雨23° / 19°18% · 7 mm28 km/h1
周一, 十月 12🌦️ Light drizzle20° / 18°22% · 2 mm23 km/h4
周二, 十月 13⛅ 局部多云23° / 19°17%24 km/h6
周三, 十月 14☀️ 晴朗26° / 20°2%19 km/h6
周四, 十月 15☀️ 晴朗30° / 22°0%16 km/h6
周五, 十月 16☀️ 晴朗32° / 24°0%16 km/h6
周六, 十月 17⛅ 局部多云26° / 23°0%19 km/h6
周日, 十月 18☀️ 晴朗25° / 22°0%13 km/h6

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).

天气 map for San Diego County

Animated model layers. Pick a layer至load it.

Loading map…

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

空气质量 and pollen in San Diego County

59
中等
Unusually sensitive people should limit long outdoor exertion.
PM2.519.2 µg/m³
PM1026.9 µg/m³
Ozone37 µg/m³
NO₂42.2 µg/m³
UV指数0 · 低
Airborne haze晴 air

空气质量: Open-Meteo (CAMS). US AQI scale.

周日, twilight and moon

日出6:44 AM
日落6:30 PM
日期light11h 46m
Solar noon12:37 PM
Golden hour (am)6:44 AM - 7:44 AM
Golden hour (pm)5:30 PM - 6:30 PM
Blue hour (am)6:14 AM - 6:44 AM
Blue hour (pm)6:30 PM - 7:00 PM
月亮 phase🌗 Last quarter · 56%
月亮rise--
月亮set2:25 PM

Golden and blue hour are the standard photographic approximation around sunrise and sunset.

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★★★★☆

Explore San Diego County

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

天气 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 27°C (81°F),天气为晴. 湿度 is 50% and wind is 3 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 10:52 PM.

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 3, 2026 at 10:52 PM 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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