UV Index in Edinburgh of the Seven Seas, Saint Helena, Ascension and Tristan da Cunha

Last updated: May 3, 2025

In Edinburgh of the Seven Seas, the capital of Saint Helena, Ascension and Tristan da Cunha, being aware of the UV Index is essential for maintaining healthy skin and preventing sunburn. Understanding UV levels not only helps protect against immediate discomfort but also significantly reduces the risk of long-term skin damage. With its Cfb climate, Edinburgh experiences relatively mild weather, but UV exposure can still be concerning, peaking at a level 4 during midday hours. Staying informed about UV levels in this unique locale ensures that both residents and visitors can enjoy the stunning environment while prioritizing their skin health.

Hourly UV Index in Edinburgh of the Seven Seas

The UV Index throughout the day reveals a dynamic pattern of sun intensity. In the morning, it starts off low, peaking at 1 by 09:00. As the sun climbs higher, we see a steady increase with the index reaching 3 by 11:00. The highest point occurs from 12:00 to 13:00, where the UV Index hits a robust 4, indicating a need for sun protection during those hours. Following this peak, the index gradually declines, returning to 2 at 15:00, and then dropping back down to 0 by 18:00, marking the end of significant UV exposure for the day. Plan your outdoor activities accordingly to stay safe under the sun!

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	0	low	45 min
08:00	1	low	45 min
09:00	1	low	45 min
10:00	2	low	45 min
11:00	3	moderate	30 min
12:00	4	moderate	30 min
13:00	4	moderate	30 min
14:00	3	moderate	30 min
15:00	2	low	45 min
16:00	1	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Edinburgh of the Seven Seas

Throughout the year, the UV Index undergoes significant fluctuations, with the highest risk months occurring from November to February, where the index remains in the extreme category (11-15), necessitating a burn time of only 10 minutes. January and December present the highest UV levels at 14 and 15, respectively. As the season progresses into March and April, the UV intensity begins to moderate, dropping to 11 and 7, but still classified as extreme to high, indicating a burn time of 10 to 25 minutes. The summer months of May through July feature a moderate UV Index, ranging from 3 to 5, allowing for slightly longer exposure times of 30 minutes. However, a notable increase in UV levels returns in September and October, with the index reaching 8 and 10 respectively, classifying them as very high and reducing burn time to 15 minutes. It is crucial for visitors and residents to be vigilant during high UV periods, particularly in late fall and winter, by utilizing sun protection measures such as sunscreen, hats, and sunglasses, regardless of the season, to prevent skin damage.

Monthly Maximum UV Index for Edinburgh of the Seven Seas, Saint Helena, Ascension and Tristan da Cunha

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Edinburgh of the Seven Seas. 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 Edinburgh of the Seven Seas, 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 Edinburgh of the Seven Seas UV Index with Other Saint Helena, Ascension and Tristan da Cunha Cities

The table above highlights how UV exposure in Edinburgh of the Seven Seas compares to other major locations across Saint Helena, Ascension and Tristan da Cunha. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Edinburgh of the Seven Seas's solar exposure compared to other cities in Saint Helena, Ascension and Tristan da Cunha. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Edinburgh of the Seven Seas	14	13	11	7	4	3	3	5	8	10	12	15
Jamestown UVI	15	15	13	12	9	8	8	10	11	14	14	15
Longwood UVI	15	15	13	12	9	8	8	10	11	14	14	15
Half Tree Hollow UVI	15	15	13	12	9	8	8	10	11	14	14	15
Georgetown UVI	14	14	14	13	12	10	10	11	12	13	14	14