5-day weather forecast Sydney 21-06-2026

Weather forecast Sydney Sunday, June 21 21.06.2026: sunny, temperature from 11 °C to 18 °C.

Precipitation probability 7%. Wind up to 4.81 m/s (gusts 7.75 m/s). Air humidity 41–76%, atmospheric pressure 768–770 mm Hg, UV index up to 2.7.

Sunrise 07:00
Sunset 16:53

First Quarter48% illuminated
Moonrise 11:20 · Moonset 23:31

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Table

← Sat, Jun 20

Sun, Jun 21, 2026

Mon, Jun 22 →

Forecast from 11 °C to 18 °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)	13	13	12	12	12	11	11	11	12	14	15	17	17	18	18	18	17	16	16	15	15	15	15	14
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.05	0.15	0.01	0	0	0

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 (%)	19	22	17	14	9	7	8	7	6	5	5	6	7	13	46	44	42	39	86	88	84	23	28	28
Rain chance (%)	7	7	8	8	8	8	8	8	7	5	3	2	1	2	4	4	5	6	17	22	12	4	5	5

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	4.5	4.61	4.69	4.5	4.39	4.39	4.39	4.39	4.81	4.81	4.5	4	3.11	2.19	2.89	3.81	3.39	2.5	1.81	2.31	2.5	2.61	2.89
Wind gust (m/s)	7.25	7.39	7.42	7.58	7.5	7.56	7.69	7.75	7.03	6.19	5.72	5.22	4.61	3.64	2.69	3.61	5.17	5.08	3.75	2.78	3.53	3.83	4.08	4.47
Wind direction (°)	WNW 302°	WNW 302°	WNW 298°	WNW 295°	WNW 290°	WNW 285°	WNW 289°	WNW 290°	WNW 288°	WNW 290°	WNW 290°	W 275°	WSW 251°	SW 230°	SSW 198°	SSE 160°	SSE 154°	SSE 153°	SSE 168°	SSW 208°	WSW 239°	WSW 244°	WSW 244°	WSW 240°

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 (%)	69	70	72	74	75	75	76	76	73	64	55	48	44	42	41	45	51	57	59	59	56	56	57	56

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)	768	768	769	769	769	770	770	770	770	770	770	770	770	770	769	769	769	769	770	770	770	770	770	770

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	0.3	0.9	1.7	2.5	2.7	2.3	1.5	0.7	0.2	0	0	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)	15.3	12.5	10.7	9.1	7.8	6.7	6.2	7.1	8.5	8.5	6.9	5.2	4.5	4.5	4.5	4.4	4.8	5	5.4	5.4	5.4	6.4	5.9	5.5
PM10 (µg/m³)	16.1	13.3	11.5	10	9	8.1	7.7	8.6	10	10.1	8.8	7.5	6.5	6.5	6.7	6.5	6.9	6.7	6.9	7.1	7.2	7.9	7.3	6.9
Ozone (O₃) (µg/m³)	17	18	21	24	27	28	29	31	35	40	45	49	53	56	56	55	53	51	48	45	43	41	40	40
NO₂ (µg/m³)	38.2	37.2	34	29.5	25.7	23.5	21.8	19.9	17.1	14	11.1	8.3	5.8	4.3	4.3	5.4	6.7	8.3	10.3	11.9	13.1	13.9	14.1	13.3
SO₂ (µg/m³)	6.3	5.7	5.2	4.8	4.5	4.4	4.5	4.6	4.7	4.9	4.8	4.2	3.4	2.8	2.6	2.6	2.7	2.8	2.9	3.1	3.3	3.6	3.7	3.6
CO (µg/m³)	126	125	113	96	85	86	92	98	102	105	104	94	80	70	67	68	72	80	90	97	96	91	89	91

← Sat, Jun 20

Sun, Jun 21, 2026

Mon, Jun 22 →

Sydney on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.

Learn more about our methodology →