UV Index in Newcastle, South Africa

Last updated: August 1, 2025

In Newcastle, South Africa, staying informed about the UV Index is essential for protecting your skin and overall health. Understanding UV levels helps you avoid sunburn and reduces the risk of long-term skin issues. Newcastle's climate, characterized by a temperate and mildly dry atmosphere, brings varying UV exposure throughout the day. With peak UV Index levels reaching 6 around midday, it's crucial to take appropriate precautions, especially from 10 AM to 2 PM, when the sun’s rays are most intense. By staying aware of these UV patterns, you can enjoy the sunny outdoors safely while keeping your skin healthy.

Hourly UV Index in Newcastle

The UV Index today showcased a notable increase from the early morning hours, starting at a gentle 1 at 07:00 and 08:00. As the sun rose higher in the sky, the index climbed steadily, reaching a significant 6 by 12:00, indicating a peak in UV radiation and the need for sun protection. The afternoon saw a slight decline, with values dropping to 4 at 14:00 and falling further to 2 by 15:00. As the day wound down, the UV index returned to a safer range, ending the day at 0 by 19:00. It’s crucial to stay informed and safeguard your skin during those high UV hours!

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.
TimeUVICategoryTime to Burn
07:001low45 min
08:002low45 min
09:004moderate30 min
10:006high25 min
11:008very high15 min
12:008very high15 min
13:007high25 min
14:006high25 min
15:003moderate30 min
16:002low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Newcastle

The UV Index experiences significant seasonal variations, peaking during the winter months and into early spring. From January to March, the index remains at 15, categorizing exposure as extreme with a quick burn time of just 10 minutes. As spring approaches, April sees a slight decrease to 10, still marked as very high, with a burn time of 15 minutes. The summer months, particularly May and July, present high UV levels of 7 and 6, manageable with 25-30 minutes of exposure, while June dips to 5 (moderate). Moving into late summer, August rises again to 8 (very high) with a reduced burn time of 15 minutes. The danger resurfaces in September and October with 11 and 12 respectively, both extreme, requiring protective measures within 10 minutes. Finally, November and December escalate to 14 and 16 (extreme), emphasizing the need for caution during outdoor activities. Residents and visitors should take preventative precautions, especially in high-risk months from January to March, and again in September through December, by using sunscreen, wearing protective clothing, and seeking shade when necessary.

Monthly Maximum UV Index for Newcastle, South Africa

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Newcastle. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec15151310756811121416
Data source: Statistical UV Index data for Newcastle, 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 Newcastle UV Index with Other South Africa Cities

The table above highlights how UV exposure in Newcastle compares to other major locations across South Africa. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Newcastle's solar exposure compared to other cities in South Africa. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Cape Town UVI141311853469111214
Durban UVI141312964579111315
Newcastle15151310756811121416
Johannesburg UVI15151310766811121416
Pretoria UVI16151310766911131416
Soweto UVI16151311766811131516