Orionids from Hong Kong in 2026

Worth planning for

Orionids: about as good as this shower gets

Plan for 02:00–06:00 local time: the radiant reaches 82° above the horizon, a 78%-lit Moon sits above the horizon for most of it, and astronomical darkness lasts 9 h 59 min. Under the reference dark sky that rates about 20 meteors an hour — cloud cover is a runtime fact this page cannot know, so treat it as the ceiling, not a promise.

Maximum (local)
02:23 · 22 October 2026
Night of
21 October 2026
Best window
02:00–06:00
Peak rate
19.8/h
Radiant (best)
82.4° SSW
Moon
78% lit
Cloud cover
unavailable

Local to Hong Kong

Sunset
17:53
Astronomical dusk
19:08
Astronomical dawn
05:07
Sunrise
06:22
Dark hours
9 h 59 min
Radiant culminates
04:44 · 83.4°
Solar midnight
00:08
Latitude
22.3°N

Light-pollution data for this location is not connected yet. Rates use the reference rural sky (limiting magnitude 6.5) the zenithal hourly rate is defined against, so no Bortle class is claimed for Hong Kong.

Orionids from Hong Kong: the short answer

Maximum for the Orionids in 2026 is 02:23 Hong Kong time on 22 October 2026. From 22.3°N the radiant gets to 83.4° at 04:44, the Moon is 78% lit, and the ideal-sky ceiling is 19.8 meteors an hour.

That ranks it 4th of twelve from Hong Kong this year, behind the Geminids (147.0/h) and the Perseids (73.6/h).

The radiant track over this city

Orion carries the radiant. From Hong Kong it clears the horizon at 22:18 on a bearing of 73° (ENE), reaches 83.4° at 04:44 in the south, and drops back below the horizon at 11:10. Within the observing window it peaks at 82.4°.

When it gets dark here

Sunset over Hong Kong is 17:53, civil twilight ends 18:16, and the sky reaches astronomical darkness — Sun 18° down — at 19:08. It holds until 05:07, with sunrise at 06:22: 9 h 59 min of real darkness inside 12 h 29 min of night.

Local solar midnight, the true middle of the night, falls at 00:08 here rather than at 00:00: Asia/Hong_Kong runs 23 minutes ahead of mean solar time at 114.17°E. That offset is why the best hour on this page is not the hour you would guess from the clock.

What the Moon does here

Moonlight is the limiting factor on this night from Hong Kong. The Moon is 78% lit and only 3 of 11 sampled hours are moon-free. Moonrise 14:42. Moonset 02:24. At the best hour it stands 35.1° below the horizon, pulling the limiting magnitude down to 6.50.

Why 20 an hour and not 20

Zenithal hourly rate 20, population index 2.5, entry speed 66.1 km/s — very fast. Those are stream constants. What changes from city to city is the geometry: at 82.4° of radiant altitude and limiting magnitude 6.50, Hong Kong converts that ZHR into about 19.8 meteors an hour.

Hour by hour the modelled rate runs from 0.0 at 19:00 (radiant -39.7°) to 19.8 at 05:00 (radiant 82.4°), peaking at 19.8. That spread across 11 hours is why a "what time" answer beats a "how many" answer.

The stream comes from Comet 1P/Halley and is listed as active 2 October to 7 November, so 22 October 2026 is the best night from Hong Kong rather than the only one.

Watching from around Hong Kong

Hong Kong is the 37th largest of the 300 cities covered here, with a population of 7.40 million at 60 m above sea level. The nearest other cities on the site are Shenzhen (32 km NNW), Zhongshan (86 km WNW), Dongguan (93 km NNW) — close enough that the radiant altitudes barely change, far enough that sunset and moonrise do.

What this page does not know

Light-pollution data for this location is not connected yet. Rates on this page are computed against the reference rural sky the zenithal hourly rate is defined for (naked-eye limiting magnitude 6.5); they are not a claim about how bright the sky is where you are standing. Once the light-pollution layer is connected these figures will be recomputed for the local sky and will generally fall.

Cloud cover is a forecast, not a constant, so it is resolved when you load the tonight card and is deliberately absent from this prerendered page — the hourly table shows "unavailable" rather than assuming clear skies. Meteor outbursts, local terrain and building horizons are not modelled.

A single observer with an unobstructed horizon typically records 30–50% below the ideal-sky figure. Give your eyes twenty minutes to adapt, keep bright screens away, look about halfway up the sky rather than straight at the radiant, and count for a full hour before judging a shower.

Expected rate through the night

0 10 20 19:00 21:00 23:00 01:00 03:00 05:00

Meteors per hour for one observer under the reference sky. Local time, Asia/Hong_Kong. Cloud cover is not included — it is unknown at build time.

Hour by hour from Hong Kong

Hourly radiant altitude, Moon position, limiting magnitude and expected rate for Orionids from Hong Kong.
Local Radiant Moon alt Moon lit Sun alt Cloud Lim. mag Meteors/h
19:00 -39.7° 49.1° 76% -16.0° n/a 4.46 0.0
20:00 -29.0° 54.9° 76% -29.9° n/a 5.25 0.0
21:00 -16.9° 55.3° 77% -43.7° n/a 5.24 0.0
22:00 -4.0° 50.0° 77% -57.4° n/a 5.32 0.0
23:00 9.3° 40.9° 77% -70.1° n/a 5.49 1.3
00:00 23.0° 29.7° 78% -78.4° n/a 5.73 3.9
01:00 36.8° 17.4° 78% -73.1° n/a 6.03 7.8
02:00 50.7° 4.6° 78% -60.9° n/a 6.37 13.8
03:00 64.5° -8.6° 79% -47.4° n/a 6.50 18.0
04:00 77.6° -21.8° 79% -33.6° n/a 6.50 19.5
05:00 82.4° -35.1° 79% -19.7° n/a 6.50 19.8

"Cloud: n/a" means the forecast is not resolved on this prerendered page, not that the sky is clear.