UV Index in Herzliya, Israel

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Herzliya, Israel, where the sun shines brightly throughout much of the year. Monitoring UV levels can significantly aid in preventing sunburn and protecting your skin health, particularly during peak hours when the index rises as high as 11—a level that signals extreme risk for harm from unprotected sun exposure. Given Herzliya's Mediterranean climate, characterized by hot, dry summers, awareness of UV exposure risks is essential to enjoy the outdoors safely while minimizing the potential for long-term skin damage. Stay informed and stay safe under the sun!

Hourly UV Index in Herzliya

Throughout the day, the UV Index experiences a dramatic increase, peaking at 11 between noon and 1 PM, indicating a very high level of solar radiation. Early risers will notice a gentle start, with a UV Index of just 1 at 7 AM, gradually climbing to 4 by 9 AM. As the sun reaches its zenith, values soar to 9 at 11 AM, signaling it's time to take precautions. After the peak, the UV Index begins to decline, dropping to 10 at 2 PM, then tapering off to 3 by 5 PM and resting back down to 1 by 6 PM. Staying protected in the midday sun is crucial for skin safety during these 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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	11	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Herzliya

Throughout the year, the UV Index experiences significant fluctuations, highlighting varying levels of sun exposure risk. High-risk months for UV exposure coincide with late spring and summer, peaking from May to July, where the Index reaches an extreme level of 11, resulting in a burn time of just 10 minutes. Notably, March and April also show very high levels, with indices of 8 and 9, respectively, indicating that precautions should begin early in the spring. As outdoor activities resume, it's crucial for residents and visitors to protect their skin, especially during these peak months, by wearing sunscreen, protective clothing, and seeking shade when necessary. In contrast, the UV Index drops to moderate levels in January, November, and December, allowing for safer outdoor enjoyment.

Monthly Maximum UV Index for Herzliya, Israel

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

The table above highlights how UV exposure in Herzliya compares to other major locations across Israel. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Herzliya's solar exposure compared to other cities in Israel. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Haifa UVI	4	6	8	9	11	11	11	10	9	7	5	4
Herzliya	4	6	8	9	11	11	11	10	9	7	5	4
Petah Tiqwa UVI	4	6	8	9	11	11	11	10	9	8	5	4
Tel Aviv UVI	4	6	8	9	11	11	11	10	9	8	5	4
Ashdod UVI	4	6	8	10	11	12	11	10	9	8	5	4
Jerusalem UVI	4	6	8	10	12	12	11	11	10	8	5	4