Monday, October 19, 2026 · Norway
Skin weather in Trondheim UV index, humidity & pollen today
What today’s weather in Trondheim does to your skin – based on current forecast data for UV, humidity, pollen and air quality.
Updated Oct 19, 2026, 10:10 AM local time
Today · Temperature2 to 10 °C
Low and high-
UV index
1.4
low
Peak UV index today: 1.4 – low.
Up to UV 2, the WHO says most people need no sun protection.
-
Humidity
25%indoors when heated
very dry
Outdoors 72% humidity – heat it to 21 °C and only around 25% is left indoors.
Dry air draws moisture from your skin – a richer moisturiser makes sense today.
-
Pollen
None
No significant pollen today.
-
Air quality
18EAQI
good
European Air Quality Index up to 18 – good. Fine dust (PM2.5) averages 7.3 µg/m³.
Clean air – no extra cleansing needed.
Tomorrow
- 2 to 9 °C
- UV 1.3 · low
- 28% · very dry
- Pollen: none
- Air quality: fair
Skin climate in Trondheim through the year
When the air in Trondheim is driest and when the sun is strongest – based on climate data from recent years.
- Indoor air in Trondheim is driest in January: heated to 21 °C, humidity indoors drops to around 19%.
- From September to June, the average daily temperature stays below 15 °C – the time when heating is usually on.
- From June to July, 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.
- May brings the most sunshine, with around 365 hours.
| Month | Sunshine | Midday sun | Humidity outdoors | Indoors when heated | Avg. high |
|---|---|---|---|---|---|
| Jan | 47 h | 5° | 81% | 19% | 1.1 °C |
| Feb | 109 h | 13° | 79% | 20% | 2.5 °C |
| Mar | 204 h | 24° | 74% | 23% | 6.8 °C |
| Apr | 293 h | 36° | 72% | 26% | 9.6 °C |
| May | 365 h | 45° | 68% | 36% | 15.6 °C |
| Jun | 336 h | 50° | 73% | 48% | 19.1 °C |
| Jul | 338 h | 48° | 75% | – | 21.3 °C |
| Aug | 286 h | 40° | 79% | – | 19.3 °C |
| Sep | 214 h | 29° | 80% | 47% | 16.3 °C |
| Oct | 114 h | 17° | 83% | 35% | 10 °C |
| Nov | 56 h | 7° | 83% | 25% | 4.3 °C |
| Dec | 30 h | 3° | 83% | 20% | 1.2 °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 Trondheim today?
Today (October 19) the UV index in Trondheim reaches up to 1.4 – low. Up to UV 2, the WHO says most people need no sun protection.
How dry is the air in Trondheim today?
Outdoors 72% humidity – heat it to 21 °C and only around 25% is left indoors. Dry air draws moisture from your skin – a richer moisturiser makes sense today.
How high is the pollen count in Trondheim today?
No significant pollen today.
When is the air driest in Trondheim?
Indoor air in Trondheim is driest in January: heated to 21 °C, humidity indoors drops to around 19%. From September to June, the average daily temperature stays below 15 °C – the time when heating is usually on.
When is UV strongest in Trondheim?
From June to July, 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. May brings the most sunshine, with around 365 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.