UV Index in Mount Isa, Australia

Last updated: July 2, 2025

Understanding the UV Index is crucial for the health and well-being of residents and visitors in Mount Isa, Australia. With its BSh climate, this region often experiences intense sun exposure, making awareness of UV levels essential for preventing sunburn and protecting skin health. On sunny days, the UV Index can reach highs of 8 around midday, indicating a significant risk for harm even after just a short period in the sun. By staying informed and taking precautions based on the UV Index, individuals can enjoy the beautiful outdoor lifestyle Mount Isa offers while safeguarding their skin for the long haul.

Hourly UV Index in Mount Isa

At dawn, the UV Index starts at a cool 0 at 07:00, indicating minimal sun exposure risk. As the day unfolds, it slowly rises, reaching 1 by 08:00 and climbing to 2 by 09:00. The sun gains strength, peaking at 8 from 12:00 to 13:00—be sure to wear sunscreen during these hours! A gradual decline follows, with the index dropping to 7 at 14:00, then tapering off to 5 by 15:00. By late afternoon, the UV Index decreases further, sinking to 3 at 16:00, before returning to 1 by 17:00 and settling back at 0 as night falls at 19:00. This hourly trend underscores the importance of protecting your skin when the sun is at its zenith!

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	2	low	45 min
10:00	4	moderate	30 min
11:00	6	high	25 min
12:00	8	very high	15 min
13:00	8	very high	15 min
14:00	7	high	25 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Mount Isa

The UV Index demonstrates significant seasonal variation, with extreme levels prevalent from January through April, where the index remains above 12 and burn times are as short as 10 minutes. The high-risk months for UV exposure are from January to April and then again in August to November, with February and November peaking at 16. Visitors and residents should exercise heightened caution during these times, seeking shade, wearing protective clothing, and applying sunscreen regularly, particularly during the peak hours of sun exposure. As we transition to the summer months, the UV Index does decrease slightly, but it remains essential to be vigilant, as any outdoor activities can still lead to harmful effects from UV radiation.

Monthly Maximum UV Index for Mount Isa, Australia

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Mount Isa. 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 Mount Isa, 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 Mount Isa UV Index with Other Australia Cities

The table above highlights how UV exposure in Mount Isa 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.

Mount Isa'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
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
Mount Isa	17	16	15	12	9	7	8	11	13	14	16	16