UV Index in Onslow, Australia

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Onslow, Australia, where the hot BWh climate leads to heightened sun exposure. The UV Index is a vital tool for assessing the intensity of ultraviolet radiation on any given day, helping you take actionable steps to safeguard your skin. With UV levels peaking at 8 during the midday hours, awareness of these risks is essential to prevent sunburn and maintain long-term skin health. By keeping an eye on the UV Index, you can enjoy the beautiful sunny days in Onslow while minimizing the adverse effects of the sun.

Hourly UV Index in Onslow

At dawn, the UV Index remains low, peaking at 1 by 08:00. As the sun rises higher, a notable increase occurs, reaching 3 at 09:00 and escalating dramatically to a maximum of 8 from 12:00 to 13:00. This midday surge indicates a higher risk for sun exposure, making it essential to take precautions such as wearing sunscreen and protective clothing. The intensity then gradually declines, dropping to 4 by 15:00, and continuing its descent to 0 by 19:00, marking the end of the sun’s peak influence for the day. Stay mindful of these hourly fluctuations to enjoy the sun safely!

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	1	low	45 min
08:00	1	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	8	very high	15 min
13:00	8	very high	15 min
14:00	6	high	25 min
15:00	4	moderate	30 min
16:00	2	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 Onslow

Throughout the year, the UV Index demonstrates significant seasonal fluctuations, highlighting periods of extreme risk. From January to April, the UV Index peaks at a staggering 15, categorized as extreme, with a critical burn time of just 10 minutes. While levels drop slightly in May and June, they remain high, with May at 8 and June at 7 (very high and high exposure, respectively). As summer fades, the UV Index rises again to 13 in September and reaches 14 in October, while November and December maintain a constant 15. Given these conditions, visitors and residents should be particularly cautious from January through April and again in September to December, ensuring they take protective measures like sunscreen and proper clothing when outdoors, particularly during peak hours. Staying informed and vigilant can help prevent harmful UV exposure throughout the year.

Monthly Maximum UV Index for Onslow, Australia

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

The table above highlights how UV exposure in Onslow 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.

Onslow'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
Onslow	15	15	13	11	8	7	8	10	13	14	15	15