Question 1

How many hours of daylight does Houston get today?

Accepted Answer

Houston currently gets approximately 13 hours and 46 minutes of daylight today. This varies throughout the year — days are longest around the summer solstice (June in the Northern Hemisphere, December in the Southern Hemisphere) and shortest around the winter solstice. At 29.8° latitude, Houston sees moderate variation, with summer days noticeably longer than winter days. Our calculations use the SunCalc astronomical library for accuracy within 1–2 minutes.

Question 2

What time does the sun rise in Houston?

Accepted Answer

Sunrise times in Houston change throughout the year based on the Earth's axial tilt and the city's position at 29.8° latitude. Use the table above to see today's exact sunrise time, as well as dawn (civil twilight) and other twilight phases. The earliest sunrise typically occurs around the summer solstice, while the latest sunrise happens near the winter solstice. The difference between earliest and latest sunrise can be over two hours. All sunrise calculations are based on NOAA solar position algorithms via the SunCalc library.

Question 3

What time does the sun set in Houston?

Accepted Answer

Sunset times in Houston vary by season due to the Earth's orbital mechanics and the city's latitude of 29.8°. Check the table above for today's exact sunset time, including dusk and twilight phases. The latest sunset typically occurs a few days after the summer solstice, while the earliest sunset happens a few days before the winter solstice. At mid-latitudes, you can expect sunset to vary by 2–3 hours across the seasons.

Question 4

How does day length change throughout the year in Houston?

Accepted Answer

Houston at 29.8° latitude experiences moderate seasonal day length variation. Summer days are noticeably longer than winter days, with daylight typically ranging from about 8 to 16 hours depending on the time of year. The rate of change is fastest around the equinoxes (March and September), when day length changes by several minutes each day. Around the solstices, the rate of change slows as day length approaches its maximum or minimum. This makes spring and autumn the seasons with the most noticeable daily changes in sunrise and sunset times.

Question 5

What is civil twilight in Houston?

Accepted Answer

Civil twilight in Houston is the period when the sun is between 0° and 6° below the horizon. During civil twilight, there is enough natural light for most outdoor activities without artificial lighting. It occurs just before sunrise (dawn) and just after sunset (dusk). At mid-latitudes, civil twilight typically lasts about 25–35 minutes. The exact duration for Houston is shown in the twilight data table above.

Question 6

What are the different twilight phases?

Accepted Answer

There are three twilight phases, each defined by the sun's angle below the horizon. Civil twilight (0°–6°) is the brightest phase, with enough light for outdoor activities without artificial lighting. Nautical twilight (6°–12°) is dimmer but still allows sailors to see the horizon for celestial navigation. Astronomical twilight (12°–18°) is nearly dark, with only the faintest glow on the horizon, and most stars become visible. Below 18° is considered full astronomical night. The duration of each phase varies by latitude and season — our data table above shows all twilight phases for Houston.

Question 7

When is the longest day in Houston?

Accepted Answer

The longest day in Houston occurs around the summer solstice. For Houston in the Northern Hemisphere, the longest day is around June 20–21. On this date, Houston experiences its earliest sunrise and near-latest sunset of the year. At 29.8° latitude, the longest day is typically 14–16 hours of daylight. The shortest day (winter solstice) occurs approximately six months later.

Question 8

Does daylight saving time affect sunrise and sunset times in Houston?

Accepted Answer

Yes, when Houston transitions to daylight saving time, clock-based sunrise and sunset times shift by one hour. However, the actual amount of daylight doesn't change — DST simply moves an hour of daylight from the morning to the evening. This means sunrise appears one hour "later" on the clock during DST, and sunset appears one hour "later" as well. The transition typically causes a noticeable jump in the sunrise/sunset table around the spring and fall changeover dates. Check our DST change calendar for exact transition dates in Houston.

Astronomical Dawn	5:04:18 AM
Nautical Dawn	5:37:52 AM
Civil Dawn	6:09:42 AM
Sunrise	6:36:08 AM
Golden Hour End	7:10:05 AM
Solar Noon	1:29:02 PM
Golden Hour Start	7:48:00 PM
Sunset	8:21:57 PM
Civil Dusk	8:48:23 PM
Nautical Dusk	9:20:12 PM
Astronomical Dusk	9:53:47 PM
Day Length	13h 46m

Moonrise	2:53:50 PM
Moonset	12:56:51 AM
Moon Phase	🌓 First Quarter
Illumination	62%

Date	Sunrise	Sunset	Day Length	Moonrise	Moonset	Phase
Jul 1, Wed	6:25 AM	8:27 PM	14h 2m	9:19 PM	7:42 AM	🌕
Jul 2, Thu	6:26 AM	8:27 PM	14h 1m	9:57 PM	8:41 AM	🌖
Jul 3, Fri	6:26 AM	8:27 PM	14h 1m	10:32 PM	9:40 AM	🌖
Jul 4, Sat	6:26 AM	8:27 PM	14h 0m	11:03 PM	10:38 AM	🌖
Jul 5, Sun	6:27 AM	8:27 PM	14h 0m	11:34 PM	11:38 AM	🌖
Jul 6, Mon	6:27 AM	8:26 PM	13h 59m	12:03 AM	12:38 PM	🌗
Jul 7, Tue	6:28 AM	8:26 PM	13h 59m	12:34 AM	1:41 PM	🌗
Jul 8, Wed	6:28 AM	8:26 PM	13h 58m	1:07 AM	2:46 PM	🌗
Jul 9, Thu	6:29 AM	8:26 PM	13h 57m	1:44 AM	3:55 PM	🌘
Jul 10, Fri	6:29 AM	8:26 PM	13h 57m	2:27 AM	5:06 PM	🌘
Jul 11, Sat	6:30 AM	8:26 PM	13h 56m	3:19 AM	6:15 PM	🌘
Jul 12, Sun	6:30 AM	8:25 PM	13h 55m	4:18 AM	—	🌘
Jul 13, Mon	6:31 AM	8:25 PM	13h 54m	5:25 AM	7:20 PM	🌑
Jul 14, Tue	6:31 AM	8:25 PM	13h 54m	6:35 AM	8:18 PM	🌑
Jul 15, Wed	6:32 AM	8:24 PM	13h 53m	7:46 AM	9:08 PM	🌑
Jul 16, Thu	6:32 AM	8:24 PM	13h 52m	8:54 AM	9:49 PM	🌒
Jul 17, Fri	6:33 AM	8:24 PM	13h 51m	9:58 AM	10:24 PM	🌒
Jul 18, Sat	6:33 AM	8:23 PM	13h 50m	10:59 AM	10:57 PM	🌒
Jul 19, Sun	6:34 AM	8:23 PM	13h 49m	11:59 AM	11:26 PM	🌓
Jul 20, Mon	6:34 AM	8:22 PM	13h 48m	12:57 PM	11:55 PM	🌓
Jul 21, Tue	6:35 AM	8:22 PM	13h 47m	1:55 PM	12:24 AM	🌓
Jul 22, Wed	6:36 AM	8:21 PM	13h 46m	2:53 PM	12:56 AM	🌓
Jul 23, Thu	6:36 AM	8:21 PM	13h 45m	3:51 PM	1:30 AM	🌔
Jul 24, Fri	6:37 AM	8:20 PM	13h 44m	4:48 PM	2:09 AM	🌔
Jul 25, Sat	6:37 AM	8:20 PM	13h 42m	5:42 PM	2:54 AM	🌔
Jul 26, Sun	6:38 AM	8:19 PM	13h 41m	6:31 PM	3:43 AM	🌔
Jul 27, Mon	6:39 AM	8:19 PM	13h 40m	—	4:36 AM	🌕
Jul 28, Tue	6:39 AM	8:18 PM	13h 39m	7:16 PM	5:33 AM	🌕
Jul 29, Wed	6:40 AM	8:17 PM	13h 38m	7:55 PM	6:31 AM	🌕
Jul 30, Thu	6:40 AM	8:17 PM	13h 36m	8:31 PM	7:29 AM	🌕
Jul 31, Fri	6:41 AM	8:16 PM	13h 35m	9:03 PM	8:27 AM	🌖

Sunrise & Sunset in Houston, United States

Sun Times

Moon

Monthly Summary — July 2026

Twilight Phases in Houston

Holidays in United States

Explore Houston

Frequently Asked Questions about Sunrise & Sunset in Houston

Sunrise & Sunset in Other Cities