Rain forecast · Hong Kong SAR China
Will it rain today in Hong Kong?
Should you take an umbrella in Hong Kong? The forecast below loads live every time you open the page: rain now, when the next shower comes, and how much falls today and tomorrow.
Rain right now
It is raining in Hong Kong right now: light rain. Today’s total: 0.8 mm over 3 wet hours. Tomorrow looks dry.
As of 2026-10-16 17:35 UTC (NOAA GFS snapshot). Updating live…
Rain every 3 hours, today and tomorrow
Today · Saturday 17 October
0.8 mm of rain, 3 wet hours, up to 0.1 mm/h.
Every 3 hours as a table
| Hours | Rain (mm) | mm/h | Type |
|---|---|---|---|
| 23:00–02:00 | 0.3 | 0.1 | light · rain |
| 02:00–05:00 | 0.2 | 0.1 | dry |
| 05:00–08:00 | 0.1 | 0 | dry |
| 08:00–11:00 | 0 | 0 | dry |
| 11:00–14:00 | 0.1 | 0 | dry |
| 14:00–17:00 | 0 | 0 | dry |
| 17:00–20:00 | 0 | 0 | dry |
| 20:00–23:00 | 0 | 0 | dry |
Tomorrow · Sunday 18 October
Dry: no rain in the forecast. (the forecast covers part of the day)
Every 3 hours as a table
| Hours | Rain (mm) | mm/h | Type |
|---|---|---|---|
| 23:00–02:00 | 0.1 | 0 | dry |
| 02:00–05:00 | 0.1 | 0 | dry |
| 05:00–08:00 | 0.1 | 0 | dry |
| 08:00–11:00 | 0 | 0 | dry |
| 11:00–14:00 | 0.1 | 0 | dry |
| 14:00–17:00 | 0 | 0 | dry |
| 17:00–20:00 | 0 | 0 | dry |
Times in local time (Asia/Hong_Kong). Each bar is the rain over 3 hours; striped bars are snow.
Rain map around Hong Kong
The same NOAA GFS precipitation on the map, moving hour by hour: blue light, darker heavy. Tap for the value.
How much it rains in Hong Kong, month by month
Hong Kong gets about 1,401 mm of rain a year. The wettest month is June (282 mm), the driest December (25 mm); a normal October brings 49 mm.
Average monthly rain and snow (water equivalent) 2001–2025, NASA POWER (MERRA-2 reanalysis, public domain), on a ~50 km grid: mountains and coasts can differ locally.
More for Hong Kong
Weather in Hong Kong now · Rain totals map · Thunderstorms · Cloud map
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Questions
- Will it rain today in Hong Kong?
- At 17 October 2026 the forecast said: It is raining in Hong Kong right now: light rain. Today’s total: 0.8 mm over 3 wet hours. Tomorrow looks dry. The box at the top of the page loads the latest NOAA GFS forecast every time you open it, with the time the next rain starts.
- How much does it rain in Hong Kong?
- About 1,401 mm a year on average (2001–2025). June is the wettest month with 282 mm, December the driest with 25 mm.
- What do the rain amounts mean?
- 1 mm is a litre of water per square metre. Under 2.5 mm an hour is light rain (a drizzle to a steady rain), 2.5–7.6 moderate, above 7.6 heavy: you get soaked in minutes and streets can flood.
- How accurate is the forecast?
- It is the global NOAA GFS model on a 0.25° grid every 3 hours: good at telling a rainy day from a dry one, less at placing a single summer thunderstorm. Check the rain map for the showers moving around Hong Kong.
Rain forecast nearby
How this page works
The rain is the one the rain layer of the map paints: NOAA GFS forecast (public domain), precipitation rate averaged over 3 hours, read at Hong Kong and summed per local day. Rain or snow comes from the GFS precipitation type. The monthly normals are NASA POWER. No third-party weather service.