Will it be clear for stargazing in Hanoi tonight?

Mostly cloudy, with a brief clear hour around 04:00; the Moon (60% lit) rises at 22:12. That is the hourly total-cloud forecast for Hanoi, Vietnam on the night of 2 October 2026, read inside the darkest hours: under 25% cloud counts as clear and 65% or more as cloudy. Most of the cloud is high and thin, which dims faint objects rather than hiding the sky.

When does it get dark in Hanoi tonight?

In Hanoi, Vietnam on the night of 2 October 2026, astronomical darkness begins at 18:57 and lasts until 04:34 GMT+7 — 9 h 37 min of fully dark sky. The Sun sets at 17:43, and nautical twilight ends at 18:31.

Is the Moon up tonight in Hanoi?

On the night of 2 October 2026 in Hanoi, Vietnam, the Moon is a waning gibbous, 60% illuminated. It rises at 22:12, GMT+7. 3 h 15 min of the dark window is moon-free.

Which planets can I see from Hanoi tonight?

From Hanoi, Vietnam on the night of 2 October 2026: Mars (01:47–04:34, highest 49° in the E at 04:34, magnitude 1.1); Jupiter (03:07–04:34, highest 32° in the E at 04:34, magnitude -1.9); Saturn (18:57–04:34, highest 71° in the S at 23:57, magnitude 0.2). Times are GMT+7; all are visible to the naked eye.

Stargazing forecast

Stargazing forecast for Hanoi, Vietnam

Fri 2 Oct night
21.024° N, 105.841° E
10 m
GMT+7 · Asia/Ho_Chi_Minh

Open the live forecast — sky score, seeing, 7 nights

Tonight at a glance

Mostly cloudy, with a brief clear hour around 04:00; the Moon (60% lit) rises at 22:12.

Most of the cloud is high and thin, which dims faint objects rather than hiding the sky.
Dew risk: the temperature comes within 2 °C (3.6 °F) of the dew point by 02:00 — optics may fog without a dew heater.

Updated 02:01 GMT+7 (2 Oct, 19:01 UTC) · MET Norway forecast issued 2 Oct, 17:18 UTC

Cloud cover: 37%Partly cloudy
Dark hours: 9 h 37 min18:57–04:34
Moon: 60%3 h 15 min moon-free
Wind: 13 km/hLight
Low temperature: 27°CDuring the dark hours
Dew risk: HighAir comes within 2° of the dew point

Photo: Milky Way over Paranal — ESO/A. Ghizzi Panizza (www.albertoghizzipanizza.com), CC BY 4.0

Hourly forecast

Cloud by layer, hour by hour. Darker blue means clearer sky; each cell shows its percentage. Low cloud blocks the sky outright; thin high cloud only dims it.

Hourly cloud cover (%) and conditions tonight in Hanoi
GMT+7	Sat 3																							Sun 4
Hour	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16
Sky: Dark 01–05, Civil twilight 05–06, Daylight 06–18, Nautical twilight 18–19, Dark 19–05, Civil twilight 05–06, Daylight 06–17
Total cloud	51	44	38	16	48	67	26	35	31	31	27	12	18	31	55	36	23	13	13	11	44	85	91	38	48	99	100	100	100	100	100	100	100	100	100	99	100	95	99	99
Low cloud	0	0	1	2	5	9	21	35	31	24	21	9	14	20	25	13	7	0	0	0	0	2	73	7	14	98	100	97	98	96	99	100	100	100	100	90	100	64	41	9
Mid cloud	0	0	0	0	0	0	0	0	0	9	8	3	5	6	16	2	1	1	1	1	1	1	20	2	1	2	6	8	0	0	0	2	4	0	28	9	6	4	2	0
High cloud	51	44	38	14	45	64	6	0	0	0	0	0	1	11	30	25	17	12	12	10	43	85	59	32	39	74	88	95	94	95	95	98	98	96	90	91	95	88	99	99
Sun & Moon
Temperature °C	28	28	27	27	27	27	28	30	31	32	32	33	34	33	33	32	31	30	29	28	28	28	28	28	27	27	26	26	26	25	25	26	26	27	28	28	29	27	27	27
Dew point °C; dew risk (within 2° of the dew point): 02, 03, 04, 05, 06, 23, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09	26	26	26	26	26	26	26	25	25	25	25	25	25	25	25	25	25	25	25	25	25	26	26	26	26	26	26	25	25	24	24	24	25	24	25	25	25	25	25	25
Wind km/h	13	12	12	13	13	12	14	17	17	17	16	15	16	17	18	19	18	17	16	15	14	10	10	13	10	8	11	8	13	10	7	8	10	6	6	6	4	8	4	8
Rain (mm)	0	0	0	0	0	0	0	0	0.2	0.5	0.2	0.1	0.2	1.2	0.4	0	0	0	0	0	0	0	0	0	0	1.1	0.4	0.2	0	0	0	0.4	0	0.3	0.4	0.2	0.4	0.6	0.2	0.1

Cloud cover0–9%10–24%25–44%45–64%65–84%85–100%

SkyDaylightCivil twilightNautical twilightAstronomical twilightDark

Sun altitudeMoon altitude12dew risk (within 2° of the dew point)Scroll sideways for the next 40 hours →

Weather data: MET Norway (CC BY 4.0)

Next 7 nights

Average cloud during each night's dark hours, with the Moon. The first two to three nights use hourly data; later nights use MET Norway's 6-hourly steps and are less certain.

Tonight2 Oct
37%Partly cloudy
60% · 3 h 20 min moon-free
18:57–04:34
Sat3 Oct
58%Partly cloudy
49% · 4 h 20 min moon-free
18:56–04:34
Sun4 Oct
99%Cloudy
37% · 5 h 30 min moon-free
18:55–04:35
Mon5 Oct
69%Cloudy
27% · 6 h 30 min moon-free
18:54–04:35
6-hourly data
Tue6 Oct
3%Clear
17% · 7 h 30 min moon-free
18:53–04:35
6-hourly data
Wed7 Oct
0%Clear
10% · 8 h 30 min moon-free
18:53–04:35
6-hourly data
Thu8 Oct
26%Partly cloudy
4% · 9 h 30 min moon-free
18:52–04:36
6-hourly data

Sun & twilight

Twilight ends in three steps. Faint galaxies and the Milky Way need astronomical darkness, when the Sun is more than 18° below the horizon.

Sunset: 17:43
Civil dusk (−6°): 18:06
Nautical dusk (−12°): 18:31
Astronomical dusk (−18°): 18:57
Astronomical dawn (−18°): 04:34
Nautical dawn (−12°): 05:00
Civil dawn (−6°): 05:26
Sunrise: 05:48

Dark window: 18:57 – 04:34 GMT+7 (9 h 37 min)

The Moon

Waning Gibbous

Illuminated: 60%
Age: 21.3 days
Moonrise: 22:12
Moonset: none in this 24 h
Moon-free dark time: 3 h 15 min

Next phases

Last QuarterSat 3 Oct20:25
New MoonSat 10 Oct22:50
First QuarterSun 18 Oct23:13
Full MoonMon 26 Oct11:12

Next lunar eclipse visible here: Partial · Fri 7 Jul 2028, 01:19 · Moon 41° up
Next solar eclipse visible here: Partial · Wed 21 May 2031, 15:43 · 39% of the Sun covered

Planets tonight

Naked-eye planets that climb more than 10° above the horizon during the astronomically dark hours.

Altitude through the night

Planets tonight — Hanoi
Planet	Rises	Transits (altitude)	Sets	Best seen tonight	Brightness	In
JupiterVisible	02:13	08:39 · 84°	15:09	03:07–04:34, E	mag -1.9	Leo
SaturnVisible	17:52	23:57 · 71°	06:01	18:57–04:34, S	mag 0.2	Cetus
MarsVisible	00:55	07:31 · 90°	14:08	01:47–04:34, E	mag 1.1	Cancer
Venus	07:55	13:27 · 48°	18:54	Below 10°	mag -4.7	Virgo
Mercury	07:31	13:10 · 55°	18:50	Below 10°	mag -0.1	Virgo

Lower magnitude = brighter. Venus and Jupiter outshine every star.

Sky events — next 90 days

Moon phases, seasons, planet highlights and eclipses, with times for this city.

Oct4Sun
Planet · 19:12
Saturn at opposition
Saturn is opposite the Sun: up all night, and at its closest and brightest for the year.
Oct10Sat
Moon · 22:50
New Moon
Darkest skies of the month for galaxies and the Milky Way.
Oct12Mon
Planet · 17:06
Mercury at greatest evening elongation
25° from the Sun — the best evening view of Mercury, low in the west after sunset.
Oct26Mon
Moon · 11:12
Full Moon
Bright moonlight all night; best for the Moon itself.
Oct29Thu
Moon · 01:04
Moon at perigee near full (a “supermoon”)
Closest to Earth this month: 364,397 km.
Nov9Mon
Moon · 14:02
New Moon
Darkest skies of the month for galaxies and the Milky Way.
Nov24Tue
Moon · 21:54
Full Moon
Bright moonlight all night; best for the Moon itself.
Nov26Thu
Moon · 04:02
Moon at perigee near full (a “supermoon”)
Closest to Earth this month: 359,335 km.
Dec9Wed
Moon · 07:52
New Moon
Darkest skies of the month for galaxies and the Milky Way.
Dec22Tue
Season · 03:50
Winter solstice
The longest night of the year — the most hours of darkness.
Dec24Thu
Moon · 08:28
Full Moon
Bright moonlight all night; best for the Moon itself.
Dec24Thu
Moon · 15:32
Moon at perigee near full (a “supermoon”)
Closest to Earth this month: 356,641 km.

Quick answers

Will it be clear for stargazing in Hanoi tonight?: Mostly cloudy, with a brief clear hour around 04:00; the Moon (60% lit) rises at 22:12. That is the hourly total-cloud forecast for Hanoi, Vietnam on the night of 2 October 2026, read inside the darkest hours: under 25% cloud counts as clear and 65% or more as cloudy. Most of the cloud is high and thin, which dims faint objects rather than hiding the sky.
When does it get dark in Hanoi tonight?: In Hanoi, Vietnam on the night of 2 October 2026, astronomical darkness begins at 18:57 and lasts until 04:34 GMT+7 — 9 h 37 min of fully dark sky. The Sun sets at 17:43, and nautical twilight ends at 18:31.
Is the Moon up tonight in Hanoi?: On the night of 2 October 2026 in Hanoi, Vietnam, the Moon is a waning gibbous, 60% illuminated. It rises at 22:12, GMT+7. 3 h 15 min of the dark window is moon-free.
Which planets can I see from Hanoi tonight?: From Hanoi, Vietnam on the night of 2 October 2026: Mars (01:47–04:34, highest 49° in the E at 04:34, magnitude 1.1); Jupiter (03:07–04:34, highest 32° in the E at 04:34, magnitude -1.9); Saturn (18:57–04:34, highest 71° in the S at 23:57, magnitude 0.2). Times are GMT+7; all are visible to the naked eye.

Forecast details

Location: 21.024° N, 105.841° E
Elevation: 10 m
Time zone: Asia/Ho_Chi_Minh (GMT+7)
Weather model: MET Norway Locationforecast 2.0
Forecast issued: 2 Oct, 17:18 UTC
Next update expected: ≈ 2 Oct, 18:48 UTC
Page generated: 2 Oct, 19:01 UTC
Astronomy: Computed with astronomy-engine for these coordinates

Computed for 21.024° N, 105.841° E, elevation 10 m, time zone Asia/Ho_Chi_Minh. City centres are light-polluted; the times here apply anywhere within about 50 km, so drive out to darker skies.

Sun, Moon and planet positions are calculated with astronomy-engine. Twilight uses the Sun's geometric centre; sunrise and sunset use the upper limb with standard refraction.

The summary line restates the hourly total-cloud forecast inside the dark window (clear under 25%, cloudy from 65%) and the Moon's times. It is not a score — the Tonight score lives in the app.

Seeing and transparency forecasts are coming to the app first (North America via Environment Canada's model, a worldwide beta elsewhere).

Nearby city forecasts

All forecasts in Vietnam Moon phase calendar Telescope FOV calculator

Get tonight's score on your phone

The Astronight app adds an hourly sky score, the best window, seeing and transparency, and alerts for clear nights.

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