UV Index in Mosta, Malta

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Mosta, Malta, where the Mediterranean climate often brings long hours of sunshine and elevated UV levels. Awareness of the UV Index helps protect against sunburn, skin damage, and long-term health issues related to UV exposure. With peak UV Index values reaching 10 during midday hours, it’s essential to pay attention to local UV forecasts to enjoy the beautiful Maltese outdoors while safeguarding your skin’s health.

Hourly UV Index in Mosta

At dawn, the UV Index starts at a mild 1 by 07:00, gradually climbing to 2 by 08:00 as the sun rises. The warmth intensifies, reaching 4 at 09:00 and peaking at a significant 10 between noon and 14:00, signaling the need for sun protection. As the afternoon rolls in, the index begins to dip, settling at 8 by 15:00 before tapering off further to 5 at 16:00. By the evening, the UV levels gracefully descend back to 2 at 18:00 and return to a safe 1 by 19:00, marking a day's journey through varying sun exposure. Be mindful of the midday sun, and stay protected during those peak 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	6	high	25 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	10	very high	15 min
14:00	10	very high	15 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Mosta

Throughout the year, the UV Index exhibits significant seasonal variations, with the highest risk occurring during the summer months of June and July. Visitors and residents should take note that from March to August, UV exposure escalates, peaking at an extreme level of 11 in July, where the burn time is only 10 minutes. The high-risk months include April and May, both with a UV Index of 9, and the very high categories remain consistent through to September. In contrast, the winter months of January, February, November, and December see a decrease in UV intensity, with indices dropping to the moderate category. To protect against harmful UV exposure, it is advisable to seek shade, wear protective clothing, and apply sunscreen during high-index periods, particularly from March to September.

Monthly Maximum UV Index for Mosta, Malta

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

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

Mosta's solar exposure compared to other cities in Malta. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mosta	3	5	7	9	9	10	11	10	8	7	4	3
San Pawl il-Bahar UVI	3	5	7	9	9	10	11	10	8	7	4	3
Zabbar UVI	3	5	7	9	9	10	11	10	8	7	4	3
Qormi UVI	3	5	7	9	9	10	11	10	8	7	4	3
Birkirkara UVI	3	5	7	9	9	10	11	10	8	7	4	3