Most people spending their first summer in Hong Kong get the same shock one morning: the city has stopped.
Trains run a reduced service, buses stop, offices close, schools close, and the supermarket shelves were emptied the night before. This isn’t a disaster scene. It happens a few times a year, whenever the tropical cyclone warning goes to signal 8 or the rainstorm warning turns black.
Learn the two systems before you move in. It is far more useful than asking around on the morning it happens.
Two warnings, read separately
Tropical cyclone warnings go 1, 3, 8, 9, 10. The line that matters is 8: public transport winds down, and most workplaces and schools stop. Signals 1 and 3 usually just mean wind, and the day carries on.
Rainstorm warnings are amber, red and black. Black is the level where classes stop and employers are expected to let staff stay somewhere safe. With amber and red, the question is whether the specific streets you’d walk tend to flood.
The two are independent — you can get both at once, or one without the other. The Observatory’s own site and app are the only source worth watching; forwarded screenshots are usually hours old.
Kai Tak really is windier
CityHome sits on the old airport runway, water on three sides and no hill in the way. That is why the sea breeze is good most days, and why the wind is loud on the two days a year it isn’t.
What that actually asks of you is short:
- Bring anything near a window inside. Sills, corridors, any outward-facing surface — clear them the day before.
- Close windows fully and latch them. Hard wind pushes water through a gap; a window that isn’t properly shut is the most common way a flat gets wet.
- Keep a towel by the window. Not much water comes in, but over several hours it spreads.
- Charge your phone and power bank. Outages are rare, but that’s when you want the battery.
The four things to do the day before
- Check the Observatory for when signal 8 is expected, then work backwards to the time you need to be home
- Buy two days of food. Not hoarding — deliveries mostly stop and shops may not open
- Decide whether you’re going home. Once signal 8 is hoisted transport shuts down in stages; one train earlier can be three hours earlier
- Charge everything
On the day: stay away from the water
This one deserves saying plainly: don’t go out to the promenade to watch the waves. The waterfront here is a short walk away, which is a good thing on an ordinary day and the thing to avoid on that one. How the village handles its outdoor spaces in severe weather follows the village’s own announcements.
The day indoors passes quickly enough. Daily life here already happens downstairs — you can eat without leaving the village at all.
The other water problem
Hong Kong’s damp isn’t limited to typhoon days. In spring, humidity can sit near saturation for days at a stretch: walls sweat, laundry stays damp on the third day, and leather and paper grow mould.
Three things that genuinely help:
- Use the dehumidify mode. Most air conditioners have one; it uses less power than cooling and works better for this
- Don’t pack the wardrobe. Leave gaps so air can move
- Seal off out-of-season clothes, wool and leather especially
The worst of it lasts days to a fortnight — long enough to ruin a coat left at the bottom of a wardrobe. First-timers often assume it’s the building. It isn’t; it’s the whole city.
In one line
- Signal 8 and black rain mean stay in, and read the Observatory rather than a forward
- The day before: clear the windows, buy food, charge up, get home early
- On the day: keep away from the water
- Damp season: dehumidify, leave gaps, seal what you’re not wearing
Most people have this filed away by the end of their first summer. The rest of the arrival list — SIM, bank, proof of address — is in your first month in Hong Kong.
If you’d like to see what the windows and corridors actually look like, book a viewing and we’ll walk you through.