Last updated: July 2, 2025
Understanding the UV Index in Bonavista, Canada, is essential for safeguarding your skin health. With its Dfb climate marking it as a temperate region, Bonavista experiences varying UV levels that peak significantly during midday. Awareness of these levels is crucial for effective sunburn prevention; even on cloudy days, harmful UV rays can lead to skin damage. From late spring to early fall, Bonavista residents and visitors alike should take note of the UV Index, which can reach as high as 8 around noon, indicating a need for protective measures. Stay informed, stay safe, and enjoy the sunny days in this beautiful coastal town!
The UV Index throughout the day reveals a notable peak in sun exposure between 12:00 PM and 1:00 PM, where it reaches a maximum of 8. Starting from the early morning at 7:00 AM with a minimal reading of 1, the index gradually climbs as the sun rises, hitting 3 by 8:00 AM and reaching 6 at 10:00 AM. The intensity continues to escalate, peaking at 11:00 AM with a 7, before reaching its zenith at 12:00 PM. Following this midday spike, the UV levels begin to decline, dropping back to 4 by 4:00 PM and tapering off to 3 by 5:00 PM. As the evening approaches, the index diminishes significantly, falling to 1 by 6:00 PM, making it crucial to seek shade or apply sunscreen during those peak hours for optimum skin protection.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 8 | very high | 15 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 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations that impact sun safety for both visitors and residents. The high-risk months for UV exposure are from April to July, where the index reaches as high as 10 in June, indicating very high exposure levels. During these months, the recommended burn time decreases to as low as 15 minutes, emphasizing the need for diligent sun protection measures such as wearing sunscreen, protective clothing, and seeking shade. In contrast, the winter months of December through February present a relatively low UV risk with indices ranging from 1 to 3 and burn times of 45 minutes to 30 minutes. As spring transitions into summer, it is crucial for individuals to remain mindful of the increasing UV levels and adjust their outdoor activities accordingly to safeguard against harmful sun exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Bonavista | 2 | 3 | 4 | 6 | 8 | 10 | 8 | 7 | 6 | 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 |