September 2026 Sunrise & Sunset Today in Cát Bà, Vietnam 🇻🇳
Sun Phase: Night
Sunrise Today: 05:25 ↑ 69.8° ENE
Sunset Today: 18:30 ↑ 290.1° WNW
Day Length: 13h 05m
Sun Direction: NE
Sun Altitude: -40.7°
Sun Distance: 151.875 million km
Next Equinox: Wednesday, September 23, 2026 (September Equinox)
When Is Sunrise & Sunset in Cát Bà?
September 2026 Sunrise & Sunset Times in Cát Bà
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| Day | Sunrise/Sunset | Daylight | Astronomical Twilight | Nautical Twilight | Civil Twilight | Solar Noon | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunrise | Sunset | Length | Diff. | Start | End | Start | End | Start | End | Time | Sun Dist. (Mil km) | |
| 1 |
05:35
↑
81° E
|
18:07
↑
279° W
|
12h 31m | -1m 07s | 04:20 | 19:23 | 04:46 | 18:56 | 05:12 | 18:30 | 11:51 | 150.97 |
| 2 |
05:36
↑
81° E
|
18:06
↑
279° W
|
12h 30m | -1m 08s | 04:20 | 19:22 | 04:47 | 18:55 | 05:13 | 18:29 | 11:51 | 150.94 |
| 3 |
05:36
↑
82° E
|
18:05
↑
278° W
|
12h 29m | -1m 08s | 04:20 | 19:21 | 04:47 | 18:54 | 05:13 | 18:28 | 11:51 | 150.90 |
| 4 |
05:36
↑
82° E
|
18:05
↑
278° W
|
12h 28m | -1m 08s | 04:21 | 19:20 | 04:47 | 18:53 | 05:13 | 18:27 | 11:51 | 150.87 |
| 5 |
05:36
↑
82° E
|
18:04
↑
278° W
|
12h 27m | -1m 08s | 04:21 | 19:19 | 04:47 | 18:52 | 05:14 | 18:26 | 11:50 | 150.83 |
| 6 |
05:37
↑
83° E
|
18:03
↑
277° W
|
12h 26m | -1m 08s | 04:21 | 19:18 | 04:48 | 18:51 | 05:14 | 18:25 | 11:50 | 150.79 |
| 7 |
05:37
↑
83° E
|
18:02
↑
277° W
|
12h 25m | -1m 09s | 04:22 | 19:17 | 04:48 | 18:50 | 05:14 | 18:25 | 11:50 | 150.76 |
| 8 |
05:37
↑
84° E
|
18:01
↑
276° W
|
12h 23m | -1m 09s | 04:22 | 19:16 | 04:48 | 18:49 | 05:14 | 18:24 | 11:49 | 150.72 |
| 9 |
05:37
↑
84° E
|
18:00
↑
276° W
|
12h 22m | -1m 09s | 04:22 | 19:15 | 04:49 | 18:48 | 05:15 | 18:23 | 11:49 | 150.68 |
| 10 |
05:37
↑
84° E
|
17:59
↑
276° W
|
12h 21m | -1m 09s | 04:23 | 19:14 | 04:49 | 18:48 | 05:15 | 18:22 | 11:48 | 150.64 |
| 11 |
05:38
↑
85° E
|
17:58
↑
275° W
|
12h 20m | -1m 09s | 04:23 | 19:13 | 04:49 | 18:47 | 05:15 | 18:21 | 11:48 | 150.61 |
| 12 |
05:38
↑
85° E
|
17:57
↑
275° W
|
12h 19m | -1m 09s | 04:23 | 19:12 | 04:49 | 18:46 | 05:15 | 18:20 | 11:48 | 150.57 |
| 13 |
05:38
↑
86° E
|
17:56
↑
274° W
|
12h 18m | -1m 09s | 04:24 | 19:11 | 04:50 | 18:45 | 05:16 | 18:19 | 11:47 | 150.53 |
| 14 |
05:38
↑
86° E
|
17:55
↑
274° W
|
12h 16m | -1m 10s | 04:24 | 19:10 | 04:50 | 18:44 | 05:16 | 18:18 | 11:47 | 150.49 |
| 15 |
05:39
↑
86° E
|
17:54
↑
273° W
|
12h 15m | -1m 10s | 04:24 | 19:09 | 04:50 | 18:43 | 05:16 | 18:17 | 11:47 | 150.45 |
| 16 |
05:39
↑
87° E
|
17:53
↑
273° W
|
12h 14m | -1m 10s | 04:25 | 19:08 | 04:51 | 18:42 | 05:16 | 18:16 | 11:46 | 150.41 |
| 17 |
05:39
↑
87° E
|
17:52
↑
273° W
|
12h 13m | -1m 10s | 04:25 | 19:07 | 04:51 | 18:41 | 05:16 | 18:15 | 11:46 | 150.36 |
| 18 |
05:39
↑
88° E
|
17:52
↑
272° W
|
12h 12m | -1m 10s | 04:25 | 19:06 | 04:51 | 18:40 | 05:17 | 18:14 | 11:46 | 150.32 |
| 19 |
05:40
↑
88° E
|
17:51
↑
272° W
|
12h 11m | -1m 10s | 04:25 | 19:05 | 04:51 | 18:39 | 05:17 | 18:13 | 11:45 | 150.28 |
| 20 |
05:40
↑
88° E
|
17:50
↑
271° W
|
12h 09m | -1m 10s | 04:26 | 19:04 | 04:52 | 18:38 | 05:17 | 18:12 | 11:45 | 150.24 |
| 21 |
05:40
↑
89° E
|
17:49
↑
271° W
|
12h 08m | -1m 10s | 04:26 | 19:03 | 04:52 | 18:37 | 05:17 | 18:11 | 11:45 | 150.20 |
| 22 |
05:40
↑
89° E
|
17:48
↑
270° W
|
12h 07m | -1m 10s | 04:26 | 19:02 | 04:52 | 18:36 | 05:18 | 18:10 | 11:44 | 150.15 |
| 23 |
05:40
↑
90° E
|
17:47
↑
270° W
|
12h 06m | -1m 10s | 04:27 | 19:01 | 04:52 | 18:35 | 05:18 | 18:09 | 11:44 | 150.11 |
| 24 |
05:41
↑
90° E
|
17:46
↑
270° W
|
12h 05m | -1m 10s | 04:27 | 19:00 | 04:53 | 18:34 | 05:18 | 18:08 | 11:44 | 150.07 |
| 25 |
05:41
↑
90° E
|
17:45
↑
269° W
|
12h 03m | -1m 10s | 04:27 | 18:59 | 04:53 | 18:33 | 05:18 | 18:07 | 11:43 | 150.03 |
| 26 |
05:41
↑
91° E
|
17:44
↑
269° W
|
12h 02m | -1m 10s | 04:27 | 18:58 | 04:53 | 18:32 | 05:19 | 18:07 | 11:43 | 149.99 |
| 27 |
05:41
↑
91° E
|
17:43
↑
268° W
|
12h 01m | -1m 10s | 04:28 | 18:57 | 04:53 | 18:31 | 05:19 | 18:06 | 11:42 | 149.94 |
| 28 |
05:42
↑
92° E
|
17:42
↑
268° W
|
12h 00m | -1m 10s | 04:28 | 18:56 | 04:54 | 18:30 | 05:19 | 18:05 | 11:42 | 149.90 |
| 29 |
05:42
↑
92° E
|
17:41
↑
268° W
|
11h 59m | -1m 10s | 04:28 | 18:55 | 04:54 | 18:29 | 05:19 | 18:04 | 11:42 | 149.86 |
| 30 |
05:42
↑
93° E
|
17:40
↑
267° W
|
11h 58m | -1m 10s | 04:28 | 18:54 | 04:54 | 18:28 | 05:20 | 18:03 | 11:41 | 149.82 |
|
All times are in local time for Cát Bà. Daylight Saving Time (DST) is not currently in effect. Calculations account for atmospheric refraction and are based on the Gregorian calendar. Today's date is in the table. |
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In Cát Bà, the earliest sunrise of September is on September 01 and the latest sunset of September is on September 01.
2026 Sun Graph for Cát Bà
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Sun's Path on Selected Date in Cát Bà
Today's Sunrise & Sunset times in other cities in Vietnam:
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Is the Day Getting Longer or Shorter in Cát Bà?
Days in Cát Bà are currently getting shorter by about 49s each day, roughly 6 minutes less daylight per week.
Golden Hour & Blue Hour in Cát Bà Today
| Morning | Evening | |
|---|---|---|
| Blue hour | 05:01-05:10 | 18:46-18:55 |
| Golden hour | 05:10-05:55 | 18:01-18:46 |
Cát Bà's Longest and Shortest Days
| Event | Date | Daylight |
|---|---|---|
| Longest day | June 22, 2026 | -11h 22m |
| Shortest day | December 21, 2026 | -14h 51m |
| Earliest sunrise | May 30, 2026 | 05:10 |
| Latest sunset | June 26, 2026 | 18:36 |
Understanding Twilight & the Golden Hour
After the sun drops below the horizon, the sky does not turn dark all at once. Civil twilight is the brightest stage, when there is still enough natural light for most outdoor activities. Nautical twilight follows, when the sea horizon becomes hard to make out. Astronomical twilight is the darkest stage, after which the sky is fully dark and the faintest stars appear. The same three stages occur in reverse before sunrise, as dawn.
Cát Bà sees its golden hour today around 05:10-05:55 and 18:01-18:46, framed by the blue hour at 05:01-05:10 and 18:46-18:55. As the sun's arc shifts with the seasons, these windows move with it.
Frequently Asked Questions about Sun in Cát Bà
What time is sunrise in Cát Bà today?
Sunrise in Cát Bà today is at 05:25 local time.
What time is sunset in Cát Bà today?
The sun sets over Cát Bà today at 18:30 local time.
What time is solar noon in Cát Bà today?
Solar noon in Cát Bà — when the sun is at its highest point in the sky — is at 11:58 local time today.
When does civil twilight begin and end in Cát Bà?
In Cát Bà today: civil twilight begins at 05:01 (before sunrise) and ends at 18:55 (after sunset). Civil twilight is the brightest of the three twilight phases.
When does nautical twilight occur in Cát Bà?
Nautical twilight in Cát Bà today runs from 04:33 in the morning to 19:22 in the evening — the period when the horizon is still visible to sailors but stars are out.
When is the sky fully dark in Cát Bà for stargazing?
Astronomical twilight in Cát Bà ends at 19:51 in the evening and resumes at 04:04 in the morning — between those times the sky is fully dark, ideal for observing faint stars and deep-sky objects.
Where on the horizon does the sun rise and set in Cát Bà?
Today in Cát Bà, the sun rises at an azimuth of 70° and sets at 290° (measured clockwise from due north). The exact angle shifts slightly each day with the seasons.
