5-day weather forecast Sydney 20-05-2026

Weather forecast Sydney Wednesday, May 20 20.05.2026: sunny, temperature from 14 °C to 17 °C.

Precipitation probability 100%. Wind up to 8.19 m/s (gusts 11.92 m/s). Air humidity 54–84%, atmospheric pressure 758–765 mm Hg, UV index up to 3.1.

Sunrise 06:43
Sunset 16:59

Waxing Crescent15% illuminated
Moonrise 10:26 · Moonset 20:16

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← Tue, May 19

Wed, May 20, 2026

Forecast from 14 °C to 17 °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)	15	15	15	15	14	15	15	15	16	16	16	17	17	17	17	17	17	16	16	16	16	15	15	14
Precipitation (mm/hr)	0.18	0.44	0.19	0.25	0.51	0.05	0	0.04	0.04	0.04	0	0	0	0	0	0	0	0	0	0	0	0	0.03	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 (%)	100	63	86	100	89	55	23	80	69	53	23	9	5	2	4	8	9	18	19	18	18	12	72	49
Rain chance (%)	100	100	100	100	100	79	0	62	61	76	0	0	0	0	0	0	0	0	0	0	0	0	88	59

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)	8.11	5.39	5.11	5.19	5.31	5.69	6.39	6.61	6	7	7.69	8.11	8.19	7.69	7.31	7.69	8	7.89	8	7.81	7.31	6.61	7	7.11
Wind gust (m/s)	11.25	7.53	7.11	7.31	7.56	8.39	9.53	10.03	8.53	9.33	10.03	9.78	9.53	9.03	8.69	9.53	10.64	11.5	11.92	11.83	11.33	10.33	11.19	11.19
Wind direction (°)	SW 219°	WSW 237°	WSW 244°	WSW 244°	SW 230°	SSW 210°	SSW 205°	SSW 199°	SSW 192°	SSW 197°	SSW 199°	SSW 197°	SSW 193°	SSW 197°	SSW 196°	SSW 195°	SSW 196°	SSW 197°	SSW 198°	SSW 199°	SSW 203°	SSW 210°	SSW 210°	SSW 210°

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 (%)	83	84	84	84	84	80	79	76	73	71	68	62	57	55	54	56	58	59	60	61	63	64	68	68

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)	758	759	759	759	760	760	761	761	762	762	763	763	763	762	762	763	763	764	764	764	764	765	765	765

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	0.4	0.9	1.4	2.5	3.1	2.7	1.8	0.9	0.3	0	0	0	0	0	0	0

← Tue, May 19

Wed, May 20, 2026

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 →