UV Index in Lethbridge, Australia

Last updated: July 2, 2025

In Lethbridge, Australia, understanding the UV Index is crucial for safeguarding your skin against harmful radiation. With peaks typically reaching 3 during midday hours, awareness of UV levels can help prevent sunburn and support long-term skin health, especially given the region's Cfb climate, which features partly cloudy conditions and significant seasonal variation in exposure. As residents enjoy the sunny environment, staying informed about daily UV fluctuations ensures that outdoor activities remain enjoyable and safe, minimizing the risk of UV-related health issues.

Hourly UV Index in Lethbridge

At 07:00, the UV Index starts off at a comfortable 0, indicating safe outdoor conditions. As the sun rises, it gently climbs to 1 by 08:00 and remains steady until 09:00. By 10:00, a slight increase to 2 suggests it’s time to put on some sunscreen, especially as it peaks at 3 between 12:00 and 13:00. The afternoon sees a dip back to 2 from 14:00 to 15:00, before gradually lowering to 1 by 16:00. As the day winds down, the index returns to 0 around 18:00 and remains there until 19:00, offering a safe end to the day’s outdoor activities. Make sure to protect yourself during those midday hours when the sun is at its most intense!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	0	low	45 min
08:00	1	low	45 min
09:00	1	low	45 min
10:00	2	low	45 min
11:00	2	low	45 min
12:00	3	moderate	30 min
13:00	3	moderate	30 min
14:00	2	low	45 min
15:00	2	low	45 min
16:00	1	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Lethbridge

Throughout the year, the UV Index experiences significant fluctuations, with particularly high-risk months occurring in winter and late fall. From November to February, the UV Index peaks at a striking 13, indicating an extreme exposure category, where unprotected skin can burn in just 10 minutes. Following this period, April and September see a rise to a 7 rating, categorized as high, with a burn time of 25 minutes. By contrast, the summer months—May to August—exhibit a moderate UV Index, ranging from 3 to 4, allowing for longer safe sun exposure of 30 minutes. However, attention should be paid in October, when the Index rises again to 9. To ensure safety, visitors and residents are advised to apply broad-spectrum sunscreen, wear protective clothing, and seek shade, especially during the high-risk months when UV radiation can be particularly harmful.

Monthly Maximum UV Index for Lethbridge, Australia

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Lethbridge. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Lethbridge, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Lethbridge UV Index with Other Australia Cities

The table above highlights how UV exposure in Lethbridge compares to other major locations across Australia. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Lethbridge's solar exposure compared to other cities in Australia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Lethbridge	13	12	11	7	4	3	3	4	7	9	11	13
Melbourne UVI	14	12	11	7	4	3	3	5	7	9	12	14
Adelaide UVI	14	13	12	8	5	3	4	5	7	10	12	15
Sydney UVI	14	13	11	8	5	3	4	6	8	10	12	14
Perth UVI	14	14	11	9	6	4	4	6	8	11	13	14
Brisbane UVI	15	15	13	10	7	5	5	8	9	12	14	15