UV Index in Koah, Australia

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Koah, Australia, where the subtropical climate brings significant sun exposure. Being aware of UV levels not only helps prevent painful sunburns but also plays a vital role in maintaining long-term skin health. With UV Index values peaking at 9 around noon, it’s essential to take precautions during the hottest parts of the day, especially given Koah's susceptibility to higher UV radiation. By staying informed, you can enjoy the outdoors while keeping your skin safe from harmful effects.

Hourly UV Index in Koah

The UV Index for the day presents a dynamic outlook, starting off low with a maximum of 1 at both 7:00 and 8:00 AM, indicating a relatively safe period for outdoor activities. As the sun climbs higher, the index peaks sharply, reaching 9 by 12:00 PM, signaling a high risk of harm from unprotected sun exposure. The afternoon shows a slight decline, with readings of 8 at 1:00 PM and 6 at 2:00 PM, but it's important to stay cautious. By 3:00 PM, the UV Index falls to 4, and it continues to decrease, dropping to a safe 0 by 6:00 PM. This pattern highlights the need for sun protection, especially during the midday hours when the UV radiation is at its most intense. Enjoy the sun, but remember to prioritize your skin's health!

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	9	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 Koah

Throughout the year, UV Index levels reveal significant seasonal changes that affect exposure risk. The high-risk months for UV exposure include January through April, where the index consistently ranks between 13 and 16, categorizing it as extreme and resulting in a quick burn time of just 10 minutes. As summer approaches, from May to July, the UV Index drops slightly but remains in the very high category, with a burn time extending to 15 minutes. By late summer and into fall (August to November), the index returns to extreme levels again, urging caution. It is essential for both visitors and residents to take protective measures—such as wearing sunscreen, hats, and sunglasses—especially during the high-risk months to mitigate skin damage from UV exposure.

Monthly Maximum UV Index for Koah, Australia

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

The table above highlights how UV exposure in Koah 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.

Koah'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
Koah	16	16	15	13	10	8	10	12	14	15	15	16