Wednesday, November 4

UV index forecast in San Marcos, California

Today’s forecast is not available here yet. The latest, for Wednesday, November 4, peaked at 5 (moderate) around 12 PM.

UV index right now in San Marcos

The forecast for the current hour is unavailable. Check back for a new forecast.

Protection on Nov 410 AM–3 PMUV 3 or higher, local time
Solar noon11:33 AMwhen the sun is highest
Sunrise · sunset6:11 AM · 4:55 PMlocal time
Peak5around 12 PM

Sun protection on Wednesday, November 4

Moderate Protection needed. Seek shade during late morning through mid-afternoon. Use broad-spectrum SPF 15+ sunscreen on exposed skin and wear protective clothing, a wide-brimmed hat and sunglasses (EPA).

What the UV index scale means

Hourly UV forecast

0 3 6 8 11 7AM 1 2 9AM 3 4 11AM 5 4 1PM 3 1 3PM
San Marcos hourly UV index, Wednesday, November 4: peaks at 5 (Moderate). Colors follow the WHO exposure categories.
HourUV indexExposure
7 AM0Low
8 AM1Low
9 AM2Low
10 AM3Moderate
11 AM4Moderate
12 PM5Moderate
1 PM4Moderate
2 PM3Moderate
3 PM1Low
 NOAA/EPA UV Index forecast for ZIP 92096, local time. Forecast retrieved Nov 4, 2026 at 11:59 AM PST.

Recent UV forecasts in San Marcos

Across 7 available forecast dates from Oct 29, 2026 to Nov 4, 2026, the forecast peak ranged from 3 to 5 (highest on Nov 2, 2026).

DatePeak UVExposure
Wed, Nov 45Moderate
Tue, Nov 35Moderate
Mon, Nov 25Moderate
Sun, Nov 14Moderate
Sat, Oct 313Moderate
Fri, Oct 304Moderate
Thu, Oct 294Moderate
 Archived NOAA/EPA forecasts, not measured UV. Only available dates are shown; missing dates are not estimated.

UV index today near San Marcos

CityDistancePeak today
Escondido, CA5.6 mi—
Vista, CA5.6 mi—
Carlsbad, CA6.8 mi—
Encinitas, CA8.1 mi—
Oceanside, CA9.9 mi—
Poway, CA13 mi—
San Diego, CA21 mi—
Santee, CA22 mi—
Temecula, CA25 mi—

More: California UV index · San Marcos frost dates · Encinitas water temperature · UV index explained