UV Index in Fort St. John, Canada

Last updated: July 2, 2025

Understanding the UV Index is essential for residents of Fort St. John, Canada, where UV exposure can pose significant risks. With its Dfc climate, this northern region experiences varying sunshine levels, making it crucial to know when to protect your skin. The UV Index in Fort St. John reaches a peak of 7 around midday, indicating an increased risk of harm from unprotected sun exposure. By being aware of these levels, you can take proactive steps to prevent sunburn and safeguard your skin health, ensuring enjoyable outdoor activities without compromise.

Hourly UV Index in Fort St. John

As the day unfolds, the UV Index experiences a steady climb, reaching its peak at 12:00 PM with a striking 7. The morning begins gently, with values starting at 1 at 07:00, gradually rising to 3 by 09:00. As the sun ascends higher, the index swells to 6 by 11:00 and peaks at 7 between 12:00 and 14:00, indicating strong sun exposure. Post-peak, the UV Index gracefully descends, slipping back to 6 at 15:00 and tapering off to 1 by 19:00. It's essential to stay mindful of sun protection, especially 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	3	moderate	30 min
10:00	4	moderate	30 min
11:00	6	high	25 min
12:00	7	high	25 min
13:00	7	high	25 min
14:00	7	high	25 min
15:00	6	high	25 min
16:00	4	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 Fort St. John

The UV Index shows a seasonal variation in sun exposure, with highest values occurring from May to August, where the index remains at a high level of 7. During these peak months, the burn time decreases significantly to just 25 minutes, indicating a greater risk of skin damage. The high-risk months for UV exposure are therefore May through August, and it is crucial for visitors and residents to take precautions such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours. In contrast, the winter months (January, February, November, and December) exhibit a low UV Index (1-2), presenting a far lesser risk for sunburn, with burn times extending to 45 minutes. Overall, staying informed about the UV Index can help ensure safer outdoor activities year-round.

Monthly Maximum UV Index for Fort St. John, Canada

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Fort St. John. 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 Fort St. John, 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 Fort St. John UV Index with Other Canada Cities

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

Fort St. John's solar exposure compared to other cities in Canada. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fort St. John	1	2	3	5	7	7	7	7	5	3	1	1
Edmonton UVI	2	3	5	6	7	7	8	7	6	4	2	1
Calgary UVI	2	3	4	6	8	8	9	8	7	4	2	1
Montreal UVI	2	4	5	7	9	9	8	8	7	5	3	2
Ottawa UVI	2	4	5	8	9	9	8	8	7	5	3	2
Toronto UVI	2	4	5	8	9	9	9	9	7	5	3	2