Today | Weather | Wednesday, December 31, 2025

Weather in Santa Clara, California

11:42 PM
Now
Rainy Weather
50° F
Feels Like 43°
Precipitation 85 %
Wind 8 mph
Humidity 99 %
Today
Rainy Weather
Day 63°
Night 52°
Precipitation 91 %
Wind 10 mph
UV Index (0 - 11+) 1

Santa Clara Weather Forecast Updated

Weather Forecast History
Last Year's Weather on This Day (December 31, 2024)
Cloudy Weather

Day

61°

Night

37°

Wind

4 mph

UV Index

2

Precipitation

0 %

Air Quality in Santa Clara

NOW
33 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.94 µg/m³
PM10 6.81 µg/m³
O3 0.035 ppm
NO2 2.5 ppb
SO2 0.1 ppb
CO 0.13 ppm
NH3 0 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.53.94 µg/m³
PM106.81 µg/m³
O369.4 µg/m³
NO24.79 µg/m³
SO20.27 µg/m³
CO153.96 µg/m³
NH30 µg/m³
NO0 µg/m³