Perseids from Ho Chi Minh City in 2026

Perseids from Ho Chi Minh City: the short answer

For Ho Chi Minh City, Perseids maximum lands at 09:00 on 13 August 2026. Culmination 05:40 at 42.9° — that is 68% of what the same stream would deliver with the radiant overhead — and the ceiling on the rate is 63.2 meteors an hour.

That ranks it 2nd of twelve from Ho Chi Minh City this year, behind the Geminids (139.7/h).

The radiant track over this city

The radiant rises at 22:28 bearing NNE, culminates 42.9° up at 05:40 towards north (0°), and sets at 12:49. It lies inside Cassiopeia. The rate scales with the sine of that altitude, so 42.9° buys you 68% of a zenith radiant.

When it gets dark here

Ho Chi Minh City loses the Sun at 18:13 and gets it back at 05:43. True astronomical darkness — the only part that counts for faint meteors — runs 19:26 to 04:30, 9 h 3 min out of 11 h 30 min of night.

Local solar midnight, the true middle of the night, falls at 23:58 here rather than at 00:00: Asia/Ho_Chi_Minh runs 7 minutes behind mean solar time at 106.63°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

The Moon is 0% illuminated and below the horizon for 11 of the 11 sampled dark hours, so moonlight subtracts essentially nothing here. Moonrise 06:00. Moonset 17:58. At the best hour the limiting magnitude reaches 6.50 — the reference sky's full value.

Why 63 an hour and not 100

Converting ZHR 100 into something useful for Ho Chi Minh City means multiplying by sin(42.3°) and dividing by 2.2 raised to (6.5 − 6.50). That lands at 63.2 meteors an hour, from fast 58.8 km/s entries.

Hour by hour the modelled rate runs from 0.0 at 19:00 (radiant -19.4°) to 3.5 at 05:00 (radiant 42.3°), peaking at 63.2. That spread across 11 hours is why a "what time" answer beats a "how many" answer.

The stream comes from Comet 109P/Swift-Tuttle and is listed as active 17 July to 24 August, so 13 August 2026 is the best night from Ho Chi Minh City rather than the only one.

Watching from around Ho Chi Minh City

Ho Chi Minh City is the 8th largest of the 300 cities covered here, with a population of 14.00 million at 7 m above sea level. The nearest other cities on the site are Cần Thơ (127 km SW), Phnom Penh (204 km WNW), Bangkok (741 km WNW) — 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.