UV Index in Siwa Oasis, Egypt

Last updated: July 2, 2025

In Siwa Oasis, Egypt, being aware of the UV Index is crucial for maintaining healthy skin and preventing sunburn. Understanding the UV levels can help residents and visitors alike take proactive measures against harmful radiation, especially in this striking desert environment where the sun's intensity can be particularly severe. With a BWh climate, Siwa experiences high UV exposure throughout the day, peaking at a staggering 12 between noon and 1 PM. Knowing when to seek shade and how to protect your skin goes a long way in ensuring a safe and enjoyable experience in this beautiful oasis.

Hourly UV Index in Siwa Oasis

During the morning hours, the UV Index starts off low at 1 at 7:00 AM, indicating minimal risk of harm from unprotected sun exposure. As the day progresses, the intensity ramps up, peaking at 12 around 12:00 PM and 1:00 PM, suggesting a high risk for harm, especially for those spending extended periods outdoors. Post-peak, the index gradually declines, dropping to 7 at 3:00 PM and further down to 1 by 7:00 PM, which indicates a return to minimal risk as the sun sets. For sun enthusiasts, midday offers the most intense UV radiation, making sun protection essential during those 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	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Siwa Oasis

The UV Index experiences significant seasonal variation, peaking during the summer months. From January (UV Index 5, moderate exposure) to February (UV Index 7, high exposure), there is a gradual increase in UV levels. However, a sharp rise occurs in March with an index of 10 (very high), leading to very high levels in April (11) and May (12), where the burn time dramatically decreases to just 10 minutes. The summer months of June through August see sustained extreme UV levels (up to 13), necessitating strong sun protection measures. As fall approaches, the UV Index begins to decline, with October at 9 (very high) and gradually reducing back to 5 in December (moderate). Visitors and residents are strongly advised to protect their skin, especially from March through September, when the UV Index is at its highest, and to take precautions even in the shoulder months of October and November.

Monthly Maximum UV Index for Siwa Oasis, Egypt

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

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

Siwa Oasis's solar exposure compared to other cities in Egypt. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Port Said UVI	4	6	9	10	11	11	11	10	9	8	5	4
Alexandria UVI	4	6	9	10	11	11	11	11	10	8	5	4
Giza UVI	5	7	9	10	11	11	11	11	10	8	6	5
Cairo UVI	5	7	9	10	11	11	11	11	10	8	6	5
Suez UVI	5	7	9	10	12	12	12	11	10	9	6	5
Siwa Oasis	5	7	10	11	12	13	12	12	11	9	7	5