UV Index in Ostra Luka, Bosnia and Herzegovina

Last updated: June 2, 2025

In Ostra Luka, Bosnia and Herzegovina, being aware of the UV Index is crucial for protecting your skin from harmful ultraviolet radiation. Understanding UV levels is vital, as it helps prevent sunburn and long-term skin health issues associated with excessive exposure. With a Cfb climate, Ostra Luka experiences moderate temperatures but can still pose UV risks, especially during peak hours when the index reaches as high as 10. Stay informed and safeguard your skin by checking the UV Index before stepping outdoors!

Hourly UV Index in Ostra Luka

As the sun rises, the UV Index starts its ascent, with a gentle 1 at 07:00. By 08:00, it begins to climb, reaching 2, signaling a reminder to take care. The real intensity kicks in at 10:00, where the index peaks at 6, escalating to a scorching 9 by noon. The hottest moment arrives at 13:00, showcasing a dramatic 10—a level that demands serious sun protection. Although the UV level begins to drop after this peak, it remains notable; at 14:00, it settles at 9, then declines gently, hitting 3 by 17:00. As daylight fades towards the evening, it tapers off to 2 at 18:00 and finally returns to a safe 1 by 19:00. It's a vivid reminder of the sun's power throughout the day!

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
12:009very high15 min
13:0010very high15 min
14:009very high15 min
15:007high25 min
16:005moderate30 min
17:003moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Ostra Luka

Throughout the year, UV index levels exhibit notable seasonal changes, with the highest risk typically occurring between April and August. In these months, the UV index reaches levels classified as high to very high, significantly reducing the recommended burn time to just 15 minutes in May, June, and July. Particularly, May (UV Index 8) and June (UV Index 10) pose the highest risk for sunburn. In contrast, the winter months of January and December present a low risk for UV exposure, with a burn time of 45 minutes. As such, visitors and residents are strongly advised to take appropriate precautions, especially during the high-risk months, including wearing sunscreen, protective clothing, and seeking shade during peak sun hours to reduce the risk of harmful UV exposure.

Monthly Maximum UV Index for Ostra Luka, Bosnia and Herzegovina

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Ostra Luka. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec2357810987532
Data source: Statistical UV Index data for Ostra Luka, 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 Ostra Luka UV Index with Other Bosnia and Herzegovina Cities

The table above highlights how UV exposure in Ostra Luka compares to other major locations across Bosnia and Herzegovina. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Ostra Luka's solar exposure compared to other cities in Bosnia and Herzegovina. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Banja Luka UVI235789987532
Ostra Luka2357810987532
Tuzla UVI246789987532
Zenica UVI24678101087532
Mostar UVI24679101097532
Sarajevo UVI34789101097532