Hong Kong Weather Information

Hong Kong weather information — current conditions, forecasts from HKO (Hong Kong Observatory). Use when user asks about HK weather, temperature, rainfall, or weather forecast.

HK Weather Info

Overview

Hong Kong weather skill using HKO (Hong Kong Observatory) OpenData API. Provides current weather reports and local weather forecasts. Supports regional filtering and multilingual output (English, Traditional Chinese, Simplified Chinese).

Data Source

HKO OpenData API — free, no API key required.

• Current weather: https://data.weather.gov.hk/weatherAPI/opendata/weather.php?dataType=rhrread&lang=<lang>
• Forecast: https://data.weather.gov.hk/weatherAPI/opendata/weather.php?dataType=flw&lang=<lang>

Variables

Variable	Description	Values
HK_WEATHER_INFO_REGION	Target region/district. If None, returns general HK weather.	e.g. "Tsuen Wan", "Central", None
HK_WEATHER_INFO_LANG	Language preference	en (English), tc (Traditional Chinese), sc (Simplified Chinese)

Step 1: Get User Input

(a) Target region

Ask user for target region/district. If user refuses or says "general/whole HK", set HK_WEATHER_INFO_REGION = None.

(b) Language preference

Ask user for language preference. One of:

• en — English
• tc — Traditional Chinese (繁體中文)
• sc — Simplified Chinese (简体中文)

Store as HK_WEATHER_INFO_LANG.

Step 2: Workflow

(a) Current weather report

Call:

GET https://data.weather.gov.hk/weatherAPI/opendata/weather.php?dataType=rhrread&lang=<HK_WEATHER_INFO_LANG>

The API returns JSON with:

• temperature — array of {place, value, unit}
• humidity — {value, unit}
• rainfall — array of {place, value, unit}
• icon — weather icon code
• uvindex — UV index (if available)
• updateTime — timestamp
• warningMessage — active warnings (string)
• rainstormReminder — rainstorm reminder (string)

Regional filtering: If HK_WEATHER_INFO_REGION is set (not None):

1. Search temperature array for entry where place matches the region (case-insensitive partial match)
2. Search rainfall array for entry where place matches the region
3. Display matched regional data

If no match found or HK_WEATHER_INFO_REGION is None:

• Display general HK weather (all temperature stations, all rainfall stations)

(b) Local weather forecast

Call:

GET https://data.weather.gov.hk/weatherAPI/opendata/weather.php?dataType=flw&lang=<HK_WEATHER_INFO_LANG>

The API returns JSON with:

• generalSituation — general weather situation
• forecastDesc — forecast description
• outlook — outlook
• forecastPeriod — array of forecast periods with forecast, weather, tempRange, rhRange, wind
• updateTime — timestamp

Regional filtering: If HK_WEATHER_INFO_REGION is set:

• The forecast is territory-wide. Note the regional context when presenting.

Display today's and tomorrow's forecast by default.

Output Format

Current Weather

🌤️ Hong Kong Weather [Region if set]

Temperature: XX°C (Station Name)
Humidity: XX%
Rainfall: XXmm (Station Name)
[Weather Icon: XX]
UV Index: XX (if available)

Active Warnings: [warningMessage or "None"]
Rainstorm Reminder: [rainstormReminder or "None"]

Last Updated: <updateTime>

Forecast

📅 Local Weather Forecast

General Situation: <generalSituation>

Today: <forecast> | <weather> | Temp: <tempRange>°C | Humidity: <rhRange>% | Wind: <wind>
Tomorrow: <forecast> | <weather> | Temp: <tempRange>°C | Humidity: <rhRange>% | Wind: <wind>

Outlook: <outlook>

Last Updated: <updateTime>

Common Pitfalls

1. No API key needed — HKO OpenData is free and open
2. Rate limiting — respectful polling, cache results for 10-15 minutes
3. Regional name matching — use partial case-insensitive match. Some station names differ from district names
4. UV index — may be null at night or on cloudy days
5. Warning message — may be empty string if no warnings active
6. Forecast language — the lang parameter affects all text fields

Verification Checklist

• HKO OpenData API used (no API key)
• Regional filtering implemented
• Language preference supported (en/tc/sc)
• Current weather and forecast both fetched
• Output format defined
• No external dependencies (Python stdlib only)