Santa Clara County Weather Forecast
Santa Clara County weather: 60°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Snow forecast for Santa Clara County
No snow is in the current forecast window for Santa Clara County.
0 of the next 16 nights are forecast to reach freezing.
Average monthly lows here stay above freezing all year, so lying snow is rare.
16-day forecast for Santa Clara County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Aug 21 | ☁️ Overcast | 72° / 58° | 2% | 13 mph | 7 |
| Sat, Aug 22 | ☁️ Overcast | 82° / 58° | 1% | 11 mph | 8 |
| Sun, Aug 23 | ☁️ Overcast | 91° / 64° | 1% | 11 mph | 8 |
| Mon, Aug 24 | ☁️ Overcast | 91° / 67° | 0% | 11 mph | 8 |
| Tue, Aug 25 | ☁️ Overcast | 87° / 63° | 0% | 11 mph | 8 |
| Wed, Aug 26 | ☁️ Overcast | 91° / 62° | 0% | 10 mph | 7 |
| Thu, Aug 27 | ☀️ Clear sky | 93° / 65° | 2% | 11 mph | 7 |
| Fri, Aug 28 | ☁️ Overcast | 91° / 63° | 2% | 10 mph | 7 |
| Sat, Aug 29 | ☁️ Overcast | 90° / 64° | 0% | 10 mph | 7 |
| Sun, Aug 30 | ☀️ Clear sky | 85° / 61° | 0% | 11 mph | 7 |
| Mon, Aug 31 | ☀️ Clear sky | 83° / 59° | 2% | 11 mph | 7 |
| Tue, Sep 1 | ☀️ Clear sky | 89° / 59° | 0% | 12 mph | 7 |
| Wed, Sep 2 | ☀️ Clear sky | 87° / 60° | 0% | 11 mph | 7 |
| Thu, Sep 3 | ☀️ Clear sky | 86° / 62° | 0% | 11 mph | 7 |
| Fri, Sep 4 | 🌤️ Mainly clear | 88° / 61° | 3% | 11 mph | 7 |
| Sat, Sep 5 | ☀️ Clear sky | -- / -- | 3% | -- | — |
Climate in Santa Clara 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 | 60° | 43° | 2,9 in | ★★★☆☆ |
| February | 62° | 45° | 5,7 in | ★★★☆☆ |
| March | 68° | 48° | 2,5 in | ★★★★☆ |
| April | 70° | 50° | 1,8 in | ★★★★☆ |
| May | 77° | 54° | 0,5 in | ★★★★★ |
| June | 83° | 57° | 0,0 in | ★★★★★ |
| July | 84° | 59° | 0,0 in | ★★★★★ |
| August | 85° | 60° | 0,0 in | ★★★★★ |
| September | 83° | 59° | 0,1 in | ★★★★★ |
| October | 78° | 56° | 0,6 in | ★★★★★ |
| November | 66° | 48° | 3,2 in | ★★★★☆ |
| December | 60° | 46° | 4,6 in | ★★★☆☆ |
Climate type: Mediterranean. Source: Open-Meteo archive (ERA5).
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
See the Santa Clara County forecast by time range
Santa Clara County weather - more answers
Explore Santa Clara County
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Santa Clara County?
Santa Clara County is a county in California. Its coordinates are 37.3541, -121.9552. It lies in North America.
What is the weather like in Santa Clara County right now?
It is currently 60°F (15°C) with partly cloudy. Humidity is 88% and wind is 5 mph.
When is the best time to visit Santa Clara County?
May, June, July, August, September and October offer the most comfortable conditions in Santa Clara County, which has a Mediterranean climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Santa Clara County in?
Santa Clara County observes America/Los_Angeles (UTC-07:00). The local time is 6:58 AM.
How many people live in Santa Clara County?
Santa Clara County has a population of approximately 1.9 million.
What is the nearest airport to Santa Clara County?
The closest airports are San Francisco International Airport (SFO), 30 mi away and Los Angeles International Airport (LAX), 309 mi away.
What are the top things to do in Santa Clara County?
Popular options include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park, Julia Pfeiffer Burns State Park and Half Dome.
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| 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 August 21, 2026 at 6:58 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
