5-day weather forecast Sydney 18-03-2026
Weather forecast Sydney today 18.03.2026: overcast, temperature from -7 °C to 4 °C.
No precipitation expected. Wind up to 7.81 m/s (gusts 9.31 m/s). Air humidity 53–86%, atmospheric pressure 755–775 mm Hg, UV index up to 3.1.
Sunset 19:11
| Temperature | Precipitation | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Overcast | 4 °C | 0% | 100% | 86% | 755 mm Hg | SW 224° 6 (9.31) m/s | 0 |
| 01:00 | Overcast | 3 °C | 0% | 100% | 86% | 755 mm Hg | SW 228° 5.11 (8.03) m/s | 0 |
| 02:00 | Overcast | 3 °C | 0% | 100% | 85% | 755 mm Hg | WSW 240° 4.69 (7.53) m/s | 0 |
| 03:00 | Overcast | 3 °C | 0% | 95% | 80% | 756 mm Hg | WSW 252° 4.39 (6.72) m/s | 0 |
| 04:00 | Overcast | 2 °C | 0% | 100% | 73% | 757 mm Hg | W 259° 4.81 (6.97) m/s | 0 |
| 05:00 | Overcast | 1 °C | 0% | 100% | 70% | 757 mm Hg | W 259° 4.61 (6.47) m/s | 0 |
| 06:00 | Overcast | 1 °C | 0% | 100% | 71% | 758 mm Hg | W 276° 4 (5.53) m/s | 0 |
| 07:00 | Overcast | -1 °C | 0% | 100% | 75% | 758 mm Hg | WNW 292° 4.31 (5.81) m/s | 0 |
| 08:00 |  Overcast | -2 °C | 0% | 100% | 75% | 760 mm Hg | W 267° 4.11 (5.53) m/s | 0.1 |
| 09:00 | Overcast | -3 °C | 0% | 100% | 76% | 761 mm Hg | W 263° 5 (6.61) m/s | 0.5 |
| 10:00 | Overcast | -3 °C | 0% | 100% | 59% | 763 mm Hg | W 273° 6.69 (8.08) m/s | 1.1 |
| 11:00 |  Partly cloudy | -2 °C | 0% | 75% | 69% | 761 mm Hg | W 270° 6.89 (8.53) m/s | 1.7 |
| 12:00 | Overcast | -3 °C | 0% | 92% | 61% | 764 mm Hg | W 272° 7.81 (9) m/s | 2.7 |
| 13:00 | Partly cloudy | -2 °C | 0% | 51% | 56% | 766 mm Hg | W 277° 7.5 (8.64) m/s | 3.1 |
| 14:00 | Partly cloudy | -3 °C | 0% | 62% | 56% | 767 mm Hg | WNW 282° 7.31 (8.39) m/s | 3 |
| 15:00 |  Cloudy | -3 °C | 0% | 67% | 55% | 767 mm Hg | WNW 286° 7 (8.06) m/s | 2.3 |
| 16:00 | Partly cloudy | -3 °C | 0% | 34% | 55% | 769 mm Hg | WNW 290° 6.89 (8.14) m/s | 1.4 |
| 17:00 | Partly cloudy | -3 °C | 0% | 28% | 53% | 770 mm Hg | WNW 297° 6.39 (7.89) m/s | 0.6 |
| 18:00 |  Sunny | -3 °C | 0% | 11% | 56% | 770 mm Hg | WNW 301° 5.31 (6.89) m/s | 0.2 |
| 19:00 | Sunny | -5 °C | 0% | 1% | 56% | 772 mm Hg | NW 308° 4.69 (6.58) m/s | 0 |
| 20:00 |  Cloudy | -6 °C | 0% | 82% | 58% | 773 mm Hg | NW 315° 4 (5.56) m/s | 0 |
| 21:00 | Overcast | -6 °C | 0% | 100% | 58% | 773 mm Hg | NW 321° 3.5 (4.81) m/s | 0 |
| 22:00 | Cloudy | -6 °C | 0% | 87% | 58% | 775 mm Hg | NW 322° 3.11 (4.17) m/s | 0 |
| 23:00 | Cloudy | -7 °C | 0% | 68% | 58% | 775 mm Hg | NW 325° 2.81 (3.75) m/s | 0 |
Frequently asked questions about the weather in Sydney
What is the weather in Sydney today?
Today in Sydney the temperature ranges from -7 °C to 4 °C, wind up to 7.81 m/s. Check the detailed hourly forecast above for more information.
Will it rain in Sydney this week?
The precipitation probability in Sydney today is 0%. View the full multi-day forecast above to see the rain chances for each upcoming day.
What is the wind speed in Sydney today?
The wind speed in Sydney today reaches up to 7.81 m/s with gusts up to 9.31 m/s. Check the detailed wind chart above for hourly wind data.
What is the humidity in Sydney today?
The air humidity in Sydney today ranges from 53% to 86%. View the humidity chart above for hourly details.
What is the UV index in Sydney today?
The UV index in Sydney today reaches up to 3.1. Check the UV index chart above for hourly values throughout the day.
What is the atmospheric pressure in Sydney today?
The atmospheric pressure in Sydney today ranges from 755 to 775 mm Hg. View the pressure chart above for hourly readings.
What is the cloud cover in Sydney today?
Cloud cover in Sydney today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.
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.