Monday, October 19, 2026 · Australia
Skin weather in Sydney UV index & humidity today
What today’s weather in Sydney does to your skin – based on current forecast data for UV, humidity and air quality.
Updated Oct 19, 2026, 7:10 PM local time
Today · Temperature11 to 21 °C
Low and high-
UV index
8
very high
Peak UV index today: 8 – very high.
Very high UV: the WHO advises avoiding the midday sun and reapplying sun protection regularly.
-
Humidity
77%outdoors
humid
Average humidity today: 77%.
Humid air – lighter textures often feel more comfortable today.
-
Pollen
–
No pollen forecast is available for this region.
-
Air quality
27EAQI
fair
European Air Quality Index up to 27 – fair. Fine dust (PM2.5) averages 10.2 µg/m³.
Clean air – no extra cleansing needed.
Tomorrow
- 13 to 22 °C
- UV 8 · very high
- 77% · humid
- Air quality: fair
Skin climate in Sydney through the year
When the air in Sydney is driest and when the sun is strongest – based on climate data from recent years.
- Indoor air in Sydney is driest in June: heated to 21 °C, humidity indoors drops to around 39%.
- From May to August, the average daily temperature stays below 15 °C – the time when heating is usually on.
- From September to April, the midday sun climbs higher than 45° – your shadow is then shorter than you are. According to the WHO shadow rule, UV is then usually high.
- December brings the most sunshine, with around 355 hours.
| Month | Sunshine | Midday sun | Humidity outdoors | Indoors when heated | Avg. high |
|---|---|---|---|---|---|
| Jan | 319 h | 77° | 75% | – | 27.2 °C |
| Feb | 284 h | 69° | 75% | – | 27.1 °C |
| Mar | 275 h | 59° | 77% | – | 26 °C |
| Apr | 270 h | 47° | 77% | – | 23.1 °C |
| May | 252 h | 37° | 78% | 52% | 19.8 °C |
| Jun | 239 h | 33° | 74% | 39% | 17.3 °C |
| Jul | 247 h | 35° | 73% | 39% | 17.4 °C |
| Aug | 271 h | 42° | 72% | 43% | 19.4 °C |
| Sep | 302 h | 54° | 64% | – | 22.5 °C |
| Oct | 319 h | 66° | 66% | – | 24.1 °C |
| Nov | 309 h | 75° | 70% | – | 24.8 °C |
| Dec | 355 h | 79° | 68% | – | 27.1 °C |
Indoors when heated = humidity when outdoor air is warmed to 21 °C (only months with a daily average below 15 °C). Midday sun = sun angle in mid-month.
Frequently asked questions
What is the UV index in Sydney today?
Today (October 19) the UV index in Sydney reaches up to 8 – very high. Very high UV: the WHO advises avoiding the midday sun and reapplying sun protection regularly.
How dry is the air in Sydney today?
Average humidity today: 77%. Humid air – lighter textures often feel more comfortable today.
When is the air driest in Sydney?
Indoor air in Sydney is driest in June: heated to 21 °C, humidity indoors drops to around 39%. From May to August, the average daily temperature stays below 15 °C – the time when heating is usually on.
When is UV strongest in Sydney?
From September to April, the midday sun climbs higher than 45° – your shadow is then shorter than you are. According to the WHO shadow rule, UV is then usually high. December brings the most sunshine, with around 355 hours.
Your skin weather, every morning.
Lumée reads UV, humidity, pollen and air quality for your location and turns them into skincare that fits this exact day.
Skin weather nearby
All cities →Data: WDTEC GmbH’s own weather servers – temperature, UV index and humidity from weather models, air quality and pollen from the Copernicus Atmosphere Monitoring Service (CAMS). Ratings: UV per WHO, air quality per European Air Quality Index, pollen per NAB. Skincare tips are general recommendations and do not replace medical advice.