Today | Weather | Sunday, October 25, 2026
Active Weather Warnings

Weather in Oceanside, California

04:23 AM
Now
Night
55° F
Feels Like 55°
Precipitation 0 %
Wind 4 mph
Humidity 99 %
Today
Cloudy Weather
Day 79°
Night 52°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 4

Oceanside Weather Forecast Updated

23 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 25, 2025)
Cloudy Night

Day

73°

Night

55°

Wind

2 mph

Precipitation

25 %

Air Quality in Oceanside

NOW
49 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 7.31 µg/m³
PM10 13.27 µg/m³
O3 0.053 ppm
NO2 0.3 ppb
SO2 0.3 ppb
CO 0.13 ppm
NH3 0.04 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)
PM2.5 – 7.31 µg/m³
PM10 – 13.27 µg/m³
O3 – 104.18 µg/m³
NO2 – 0.53 µg/m³
SO2 – 0.68 µg/m³
CO – 151.28 µg/m³
NH3 – 0.04 µg/m³
NO – 0 µg/m³

Weather Alerts and Warnings for Oceanside

Severe Expected Likely

Coastal Flood Warning

Coastal Flood Warning issued October 25 at 12:59AM PDT until October 29 at 1:00PM PDT by NWS San Diego CA
Oct 25, 5:00 AM → Oct 29, 1:00 PM
WHAT: Significant coastal flooding expected.

WHERE: San Diego County Coastal Areas and Orange County
Coastal Areas.

WHEN: From 5 AM this morning to 1 PM PDT Thursday during high
tides.

IMPACTS: Numerous roads may be closed. Low lying property
including homes, businesses, and some critical infrastructure
will be inundated. Some shoreline erosion will occur in the
morning hours.

ADDITIONAL DETAILS: Coastal residents in the warned area
should be alert for rising water and take appropriate action
to protect life and property. High tides each day will occur
in the morning. Tides may be anywhere from 1 to 1.7 feet above
predicted.
+ Read More
Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth.
Updated: Oct 25, 3:59 AM Source: NWS Alert