San Diego County 天氣 預報
San Diego County weather: 18°C, 大致晴朗. 逐小時 forecast, 14-day outlook, UV, air quality and the best time至visit.
San Diego County weather in 十二月
A good month至visit San Diego County.
十二月 runs 3°C cooler than the annual average in San Diego County.
天氣 map for San Diego County
Animated model layers. Pick a layer至load it.
Animated layers by 風y. For pin-level detail and nearby places, see the interactive map below.
氣候 in San Diego County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| 月份 | Avg high | Avg low | 雨fall | Rating |
|---|---|---|---|---|
| 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 | ★★★★☆ |
氣候 type: Mediterranean. 來源： Open-Meteo archive (ERA5).
最佳旅遊時間 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.
What至pack, what至skip
- 週日glasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid 一月, 二月 and 三月 - historically the least comfortable months here.
How San Diego County compares，天氣為nearby places
Annual averages, and the difference against San Diego County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| San Diego | 0 km | 17°C | about the same | 359 mm |
| San Diego International Airport | 4 km | 17°C | about the same | 359 mm |
| Coronado Beach | 4 km | 17°C | about the same | 359 mm |
| Anza-Borrego Desert State Park | 93 km | 24°C | +6°C warmer | 118 mm |
| Orange County | 128 km | 18°C | +1°C warmer | 385 mm |
查看 San Diego County 的分時預報
San Diego County weather - more answers
Explore San Diego County
Every topic we hold for this place, and the same topic for the places around it.
天氣 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現在?
It is currently 18°C (65°F)，天氣為大致晴朗. 濕度 is 79% 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 12:41 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 週一ica State Beach and Hollywood Sign.
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| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| 預報 and observations | Open-Meteo (ECMWF and national models). |
| 空氣品質 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 氣候 averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National 天氣 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 十月 22, 2026 at 12:41 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
