Monday, October 19, 2026 · Japan
Skin weather in Yokohama UV index & humidity today
What today’s weather in Yokohama does to your skin – based on current forecast data for UV, humidity and air quality.
Updated Oct 19, 2026, 5:10 PM local time
Today · Temperature19 to 25 °C
Low and high-
UV index
4.9
moderate
Peak UV index today: 4.9 – moderate.
From UV 3, the WHO recommends sun protection: sunscreen with SPF and shade around midday.
-
Humidity
74%outdoors
humid
Average humidity today: 74%.
Humid air – lighter textures often feel more comfortable today.
-
Pollen
–
No pollen forecast is available for this region.
-
Air quality
60EAQI
moderate
European Air Quality Index up to 60 – moderate. Fine dust (PM2.5) averages 15.5 µg/m³.
Fine dust settles on the skin – cleanse thoroughly but gently in the evening.
Tomorrow
- 20 to 24 °C
- UV 4.6 · moderate
- 90% · humid
- Air quality: fair
Skin climate in Yokohama through the year
When the air in Yokohama is driest and when the sun is strongest – based on climate data from recent years.
- Indoor air in Yokohama is driest in January: heated to 21 °C, humidity indoors drops to around 25%.
- From November to March, the average daily temperature stays below 15 °C – the time when heating is usually on.
- From March to September, 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.
- August brings the most sunshine, with around 310 hours.
| Month | Sunshine | Midday sun | Humidity outdoors | Indoors when heated | Avg. high |
|---|---|---|---|---|---|
| Jan | 239 h | 33° | 65% | 25% | 9.7 °C |
| Feb | 238 h | 41° | 62% | 26% | 10.7 °C |
| Mar | 241 h | 52° | 70% | 39% | 14.5 °C |
| Apr | 254 h | 64° | 74% | – | 18.2 °C |
| May | 249 h | 73° | 77% | – | 21.5 °C |
| Jun | 258 h | 78° | 81% | – | 25.3 °C |
| Jul | 308 h | 76° | 82% | – | 29.5 °C |
| Aug | 310 h | 68° | 81% | – | 30.5 °C |
| Sep | 248 h | 57° | 80% | – | 27.7 °C |
| Oct | 213 h | 45° | 76% | – | 21.8 °C |
| Nov | 216 h | 35° | 72% | 48% | 17.4 °C |
| Dec | 235 h | 31° | 67% | 32% | 12.4 °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 Yokohama today?
Today (October 19) the UV index in Yokohama reaches up to 4.9 – moderate. From UV 3, the WHO recommends sun protection: sunscreen with SPF and shade around midday.
How dry is the air in Yokohama today?
Average humidity today: 74%. Humid air – lighter textures often feel more comfortable today.
When is the air driest in Yokohama?
Indoor air in Yokohama is driest in January: heated to 21 °C, humidity indoors drops to around 25%. From November to March, the average daily temperature stays below 15 °C – the time when heating is usually on.
When is UV strongest in Yokohama?
From March to September, 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. August brings the most sunshine, with around 310 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.