Hong Kong 9-Day Weather Forecast

Get the official 9-day weather forecast for Hong Kong from the Hong Kong Observatory: date, day of week, max/min temperature, max/min humidity, wind and weather summary, and probability of significant rain (PSR). Free government API, no key. For travel, logistics and outdoor planning apps.

What does Hong Kong 9-Day Weather Forecast do?

Official Hong Kong Observatory 9-day forecast: daily temperature, humidity, wind and rain risk.

What can you use it for?

• Show a 9-day Hong Kong forecast in a travel or events app.
• Plan outdoor logistics or deliveries around rain risk.
• Feed daily Hong Kong weather into a dashboard with a scheduled run.
• Compare forecast temperature and humidity trends over the coming week.

Why use this Actor?

• Fast and cheap: lightweight HTTP-based Actor with no browser, so runs finish in seconds and cost very little.
• No API keys or accounts needed for the data source (see notes below).
• Clean, structured JSON that you can export as CSV, Excel, JSON or XML, or pull through the Apify API and integrations.
• Scheduling, webhooks and integrations: run it daily and send results to Google Sheets, Slack, Zapier, Make, n8n or your own API.

Input

Configure the run in the Input tab (all fields have sensible defaults).

Field	Type	Required	Default	Description
lang	string (en / tc / sc)	no	"en"	Forecast text language.

Example input

{
  "lang": "en"
}

Output

Results are stored in the default dataset. Download them from the Output tab or via the API.

Example result

{
  "date": "2026-10-25T00:00:00.000Z",
  "week": "Sunday",
  "weather": "Fine and dry.",
  "wind": "North to northeast force 3 to 4.",
  "maxTempC": 31,
  "minTempC": 25,
  "maxHumidityPercent": 75,
  "minHumidityPercent": 50,
  "rainProbability": "Low",
  "iconCode": 50,
  "source": "Hong Kong Observatory (data.gov.hk)",
  "scrapedAt": "2026-10-24T20:39:46.502Z"
}

Output fields

Field	Type	Example
date	string	"2026-10-25T00:00:00.000Z"
week	string	"Sunday"
weather	string	"Fine and dry."
wind	string	"North to northeast force 3 to 4."
maxTempC	number	31
minTempC	number	25
maxHumidityPercent	number	75
minHumidityPercent	number	50
rainProbability	string	"Low"
iconCode	number	50
source	string	"Hong Kong Observatory (data.gov.hk)"
scrapedAt	string	"2026-10-24T20:39:46.502Z"

How much does it cost?

The Actor is billed by Apify according to the pricing shown on the Pricing tab of this page. Runs are small and fast, and the Apify Free plan includes monthly platform credits so you can try it at no cost. You can set a maximum cost per run, and the Actor stops cleanly when that limit is reached.

Notes and limitations

• Source: Hong Kong Observatory open data API (data.gov.hk), free for commercial and non-commercial use with attribution.
• PSR (Probability of Significant Rain) is a qualitative label: Low, Medium Low, Medium High or High.

Tips

• Start with a small test run, then scale up the input.
• Use Schedules to automate recurring runs and Webhooks or Integrations to deliver the data where you need it.
• Call the Actor from your code with the Apify API or the official JavaScript and Python clients.

FAQ

Can I get forecasts for other cities?

No, this covers Hong Kong only. Use a global forecast actor for other locations.

How often is this updated?

The Observatory updates the forecast several times a day; each run returns the latest version.

Feedback

Found a bug or need an extra field? Open an issue from the Issues tab of this Actor and it will be looked at quickly.

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