Latest Message

(2025/06/29 10:45 HKT)

The preliminary version of the review reports for tropical cyclones WUTIP and 03W, which affected Hong Kong this month, are now available here.

Warning(s) in Force [Details] [Def]

+Click to view very hot places

+Radar image

Tropical Cyclone Information [Details] [HKO link]

- Tropical Storm DANAS bulletin #5 (2025/07/08, 22:00 HKT)

Weather Details around Hong Kong [Details] [HKO link]

Real-time Weather Photos [Details] [HKO link]

The following photo shows the real-time view of Victoria Harbour, as viewed from Central towards the east.

Astronomical / Tidal Information [Details] [HKO link]

Info for 09/07/2025 (Wednesday):

Astro. Info				Tide
Sunrise	:	05:45		00:12	1.20 m
Sunset	:	19:11		07:09	2.21 m
Moonrise	:	18:07		15:39	0.46 m
Moonset	:	03:53		22:39	1.28 m

Jul 09, 14:03 HKT: Moon South Dec.: 28.4° S

Jul 11, 04:37 HKT: Full Moon

Jul 15, 18:42 HKT: Moon Ascending Node

Jul 16, 18:19 HKT: Moon-Saturn: 3.9° S

Weather at a Glance [Details] [HKO link]

Data as of 10:30 on 9/7/2025

• In Brief
• Detailed

30.7 C	75 %	1001.8 hPa
All measurements taken at Hong Kong Observatory

HKO	Temp.:	30.7 C
	RH.:	75 %
	Apparent Temp.:	38.3 C (EXTREME CAUTION)
	Dew Point:	25.7 C
	Temp. of today:	31.2 / 29.4 C (Range 1.8 C)
	Mean SLP.:	1001.8 hPa
King's Park	Wind:	5 km/h (E)
	UV:	N/A
	Rain:	0.0 mm (past 15 min)

Upper-Level Weather Information [Details]

Data as of 08:00 HKT on 9/7/2025 - Level of instability:

3-day Weather Forecast [Click for 9-day] [HKO link]

Data as of 04:50 HKT 09/Jul/2025

General Situation: Under the influence of a southwesterly airstream, the weather will remain very hot with showers over the coast of Guangdong today. Tropical Cyclone Danas will move across the vicinity of Fujian today. It will then edge closer to Guangdong and weaken gradually. The trough of low pressure associated with the remnant of Danas is expected to bring heavy showers and squally thunderstorms to Guangdong and the northern part of the South China Sea in the middle and latter parts of this week. With the weakening of the trough of low pressure, showers will ease off gradually and it will be brighter early next week.

Date	9/7 (Wed)	10/7(Thu)	11/7(Fri)
Weather	Sunny intervals, a few showers and thunderstorms. Very hot during the day. Showers will increase gradually.	Cloudy with occasional showers and squally thunderstorms. Showers will be heavy at times.	Cloudy with showers and squally thunderstorms. Showers will be heavy at times.
Wind	SW force 4.	S to SW force 4, occasionally force 5 offshore.	S to SE force 4, occasionally force 5 offshore.
Temp.	27 - 33 °C	26 - 30 °C	26 - 29 °C
R.H.	65 - 95 %	75 - 95 %	80 - 95 %

Extended Temperature Outlook [HKO link]

Maximum temperature:

Minimum temperature:

Weather Conditions in South China Sea [Details] [HKO link]

Satellite / Radar Images [Details]

Radar: 256 km range	Radar: 128 km range	Radar: 64 km range	Satellite: IR imagery*

* The Satellite imagery above is taken by Himawari-8 operated by the Japan Meteorological Agency (JMA).

Aviation Weather Observation Report [HKO link]

Data as of 10:30 HKT on 09 Jul 25

Original code: METAR VHHH 090230Z 25006KT 210V290 9999 FEW015 32/26 Q1001 NOSIG=

Wind	Visibility	Weather	Cloud Amount	Cloud Base	Temperature	Dew Point	Pressure (QNH)
6 knots from 250 degrees (WSW), variability: 210-290 degrees	10 km or above	No significant weather	1 to 2 oktas	1500 feet	32 oC	26 oC	1001 hPa

Next Two Hours Change

No Significant Change

Meteorological Calculation

A. Conversion between units Please select unit --------- Temperature --------- C     Celsius F     Fahrenheit K     Kelvin R     Rankine --------- Length --------- km     Kilometre mi     Statute Mile NM     Nautical Mile --     Degree of Latitude m     Metre ft     Foot --------- Speed --------- km/h     Kilometre per Hour m/s     Metre per Second mph     Statute Mile per Hour kt     Knot (Nautical Mile per Hour) --------- Direction --------- Degree(s) => Direction --------- Pressure --------- hPa/mb     Hectopascal/Millibar inHg     Inch of Mercury atm     Atmosphere mmHg     Torr

B. Calculation of distance between places on Earth Place 1:     Lat :   Long : Place 2:     Lat :   Long :

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