Sunrise & Sunset in San Mateo, CA
The sun rises in San Mateo today at 6:13 AM and sets at 8:20 PM, giving 14 hours 6 minutes of daylight — 2 minutes less than yesterday. First light is at 5:44 AM, last light at 8:49 PM, and solar noon at 1:16 PM.
It's 12:53 PM in San Mateo right now — Pacific Daylight Time on the world clock.
Pacific Daylight Time · Friday, July 31, 2026 · Calculated for central San Mateo — recomputed live in your browser for today's date.
Daylight in San Mateo
Next: Sunset at 8:20 PM
Sunrise 6:13 AM · Sunset 8:20 PM
The curve is how high the sun climbs through the day; the band beneath it runs from first light to last light.
Where the sun is right now
The sun is well up. Altitude is how far above the horizon the sun sits; azimuth is the compass bearing to look along, measured clockwise from north. Shown for 12:53 PM; this updates to the live position when the page loads.
24-hour sun clock
Sunrise & sunset tomorrow in San Mateo
Saturday, August 1, 2026
Tomorrow in San Mateo the sun rises at 6:14 AM and sets at 8:19 PM — 14 hours 5 minutes of daylight, 2 minutes shorter than today. Recomputed in your browser, so it is always the next day from now.
Twilight, golden hour & blue hour
The three twilights are just how far the sun is below the horizon: civil to −6° (bright enough to read outside), nautical to −12° (the horizon is still visible at sea), astronomical to −18° (true darkness for stargazing). Golden hour is the warm, low-angle light photographers love, when the sun sits between −4° and +6°; blue hour is the deep-blue band just beyond it, from −6° to −4°. A dash means the sun never gets that low here on this date.
Next 7 days
| Day | Sunrise | Sunset | Day length | Daily change |
|---|---|---|---|---|
| Today Fri, Jul 31 | 6:13 AM | 8:20 PM | 14 h 6 m | −2 min |
| Tomorrow Sat, Aug 1 | 6:14 AM | 8:19 PM | 14 h 5 m | −2 min |
| Sun, Aug 2 | 6:15 AM | 8:18 PM | 14 h 3 m | −2 min |
| Mon, Aug 3 | 6:16 AM | 8:17 PM | 14 h 1 m | −2 min |
| Tue, Aug 4 | 6:17 AM | 8:16 PM | 13 h 59 m | −2 min |
| Wed, Aug 5 | 6:17 AM | 8:15 PM | 13 h 57 m | −2 min |
| Thu, Aug 6 | 6:18 AM | 8:14 PM | 13 h 55 m | −2 min |
Sunrise & sunset through the year
Longest day: June 21 — 14 h 46 m of daylight. Shortest day: December 21 — 9 h 34 m.
Daylight & seasons in San Mateo
- The sun rises in the east-northeast and sets in the west-northwest today.
- Days are getting shorter by about 2 minutes a day right now.
- San Mateo gets about 5 hours 12 minutes more daylight on its longest day than its shortest.
- The next autumn equinox is 54 days away, on September 23.
- Of the 365 days this year, today is the 80th longest here.
- The shortest day of the year is 143 days away, on December 21 — 9 h 34 m of daylight.
What time is sunrise tomorrow in San Mateo, CA?
Tomorrow (Saturday, August 1, 2026) the sun rises at 6:14 AM in San Mateo and sets at 8:19 PM, giving 14 hours 5 minutes of daylight. The card above recomputes this in your browser, so it is always the day after today wherever you are reading it.
What time is sunrise in San Mateo, CA today?
The card above computes it live in your browser for today's date, using San Mateo's coordinates — along with sunset, solar noon, first light and last light, all in San Mateo's own time zone.
What are first light and last light?
Civil twilight — when the sun is less than 6° below the horizon. It's bright enough for most outdoor activities before sunrise and after sunset.
Why do the times change every day?
Earth's tilted axis means the sun's path moves through the seasons — days lengthen toward the summer solstice and shorten toward the winter solstice, so sunrise and sunset shift a little every day.
Related astronomical information
Calculated astronomical positions for these coordinates. Local weather and conditions are not modelled.