5-day weather forecast Hong Kong 17-07-2026

Weather forecast Hong Kong tomorrow 17.07.2026: light rain shower, temperature from 27 °C to 29 °C.

Precipitation probability 75%. Wind up to 6.39 m/s (gusts 12.31 m/s). Air humidity 81–89%, atmospheric pressure 752–755 mm Hg, UV index up to 9.7.

Sunrise 05:49
Sunset 19:09

Waxing Crescent15% illuminated
Moonrise 08:23 · Moonset 21:25

Chart

Table

← Thu, Jul 16

Fri, Jul 17, 2026

Sat, Jul 18 →

Forecast from 27 °C to 29 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	27	27	27	27	27	27	27	27	27	27	27	28	28	28	28	29	29	28	28	28	28	27	27	27
Precipitation (mm/hr)	1.21	1.44	1.99	1.79	1.8	1.4	1.61	1.75	1.43	1.38	1.37	1.73	0.96	0.22	0.27	0.08	0.11	0.11	0.17	0.17	0.69	0.32	0.48	0.21

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	77	71	68	82	75	77	81	93	98	95	90	89	88	89	83	72	64	59	84	55	51	78	79	86
Rain chance (%)	68	68	72	73	71	69	72	75	73	72	71	73	65	38	39	25	25	24	34	28	50	43	53	39

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	4.39	4.39	4.61	4.5	4.39	4.19	4.11	4.11	4.81	4.89	5	5.81	6.39	6	6.11	5.89	5.81	5.69	5.19	4.81	4.31	3.89	3.19	3
Wind gust (m/s)	7.47	8.03	9.08	6.61	7.5	7.86	8.14	8.5	10.19	6.72	8.03	10.42	12.31	11.86	12.17	7.44	7.42	7.36	6.89	6.75	6.08	5.61	4.64	4.36
Wind direction (°)	SSW 194°	SSW 197°	SSW 194°	S 190°	S 187°	S 186°	S 191°	SSW 194°	SSW 196°	SSW 195°	SSW 193°	SSW 200°	SSW 211°	SSW 210°	SSW 208°	SSW 209°	SSW 211°	SSW 208°	SSW 200°	S 191°	S 191°	S 191°	S 184°	S 186°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	87	88	89	89	88	88	89	89	87	86	87	86	85	83	82	81	81	81	83	84	85	86	86	86

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	755	755	754	754	753	753	753	754	754	754	754	754	754	753	752	752	752	752	752	752	753	753	754	754

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0.4	1.4	3.7	6	8.1	9.4	9.7	8.4	5.9	3.2	1.4	0.4	0	0	0	0	0

Air quality & pollen

Air quality
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
PM2.5 (µg/m³)	14.2	12	11.1	10.3	9.5	9.7	11.1	11.2	16.4	17.2	12.8	13.9	15.9	16.8	18.3	18.6	16.8	18	18	19.1	20.9	20.5	20	19.8
PM10 (µg/m³)	16.7	14.7	14	12.9	11.8	11.9	13.3	13.2	18.7	20.3	16.6	18.6	21.8	23.6	25.8	26.3	23.6	23.9	23.3	23.3	24.7	24.3	23.9	23.7
Ozone (O₃) (µg/m³)	35	44	50	50	48	44	38	30	29	38	54	67	76	83	86	82	74	64	50	35	25	26	32	39
NO₂ (µg/m³)	46.2	37	30.2	26.9	26	27.3	32.8	40.4	44.2	40.1	32	25.8	23.5	23.2	24.4	26.9	30.9	37.6	50.1	65.3	74.2	72	63.7	55
SO₂ (µg/m³)	28.2	26.1	23.9	21.2	18.4	17.3	18.9	22.1	25.3	28.1	30.9	33	34	34.2	34.2	33.9	33.4	32.9	32.8	32.9	32.5	31.4	29.9	28.3
CO (µg/m³)	155	143	134	127	124	134	173	226	256	241	202	172	162	160	161	166	174	183	193	203	206	198	183	168