UV Index in Ontario

Real-time UV forecast & tanning weather

Current Conditions

Loading live weather data...
0
Low
UV Index
🌡️
19°C
Temperature
☀️
Clear sky
Conditions
☀️
Peak Tanning Window 1PM • UV 9

Hourly UV Forecast

☀️ Excellent tanning conditions • 10AM–6PM • 23°C • 6 km/h 🌬️
0
6AM
1
7AM
2
8AM
3
9AM
5
10AM
7
11AM
8
12PM
9
1PM
8
2PM
8
3PM
6
4PM
5
5PM
3
6PM
1
7PM
0
8PM
0
9PM
Low 0–2 Moderate 3–5 High 6–7 Very High 8–10 Extreme 11+

16-Day UV Forecast

9
Sun 31
Excellent
9
Mon 1
Excellent
8
Tue 2
Excellent
9
Wed 3
Excellent
9
Thu 4
Excellent
9
Fri 5
Excellent
8
Sat 6
Excellent
8
Sun 7
Excellent
8
Mon 8
Excellent
8
Tue 9
Excellent
8
Wed 10
Excellent
8
Thu 11
Excellent
8
Fri 12
Excellent
8
Sat 13
Excellent
8
Sun 14
Excellent
8
Mon 15
Excellent

Location & Climate

In Ontario, UV rises from 3 in January to 10 in June, with peak tanning months being June, July, August. Expect the strongest sun between late spring and early fall.

North America spans a wide UV range from subtropical Florida to northern Canada. Seasons strongly influence tanning potential — summer months offer the best conditions across most of the continent.

During the peak tanning season, use SPF 30-50 depending on the time of day. In winter months, SPF 15-30 is usually sufficient for daily protection.

Tanning Tips

Ontario enjoys strong UV from spring through fall. Peak tanning season runs April to October, with UV often exceeding 8.

Weather data by Open-Meteo (CC BY 4.0)

Monthly UV Index in Ontario

Average daily maximum UV index by month

Jan
3
Feb
3
Mar
5
Apr
7
May
8
Jun
10
Jul
10
Aug
10
Sep
8
Oct
7
Nov
5
Dec
3
Low Moderate High Very High Extreme

Best Months to Tan in Ontario

Based on average UV levels, the best months for tanning in Ontario are:

April Great May Great June Excellent July Excellent August Excellent September Great October Great

Rating based on average monthly UV index

Related Guides

Tanning in UV 9-10+ → Aggressive Tanning — What to Know → Safe Tanning Tips → Melanin-Boosting Foods → Best Time of Day to Tan →

Tanning Tools & Calculators

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Tanning Time Calculator

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Sunburn Calculator

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Skin Type Quiz

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Tanning Routine Creator

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Frequently Asked Questions

What is the UV index in Ontario right now?
The current UV index in Ontario is shown in the live weather section above. UV levels change throughout the day, typically peaking between 11 AM and 2 PM local time.
What is the best month to tan in Ontario?
The best months for tanning in Ontario are April, May, June, July, August, September, October, when average UV levels reach 7 or higher.
How long should I tan in Ontario?
Tanning time depends on your skin type and the current UV index. For a moderate UV of 9, a person with Skin Type III (medium complexion) can safely tan for about 17 minutes per session. Use our Tanning Calculator for personalized recommendations.
Is it safe to tan in UV index 10?
UV index 10 is classified as Very High. Very High — avoid prolonged sun exposure. Short tanning sessions with SPF 50+ recommended.
When is the peak UV time in Ontario?
UV levels in Ontario typically peak between 11:00 AM and 2:00 PM local time. The exact peak depends on the season, cloud cover, and altitude.

UV Index in Nearby Cities

10
Rancho Cucamonga
Avg. Peak UV
› 10
Corona
Avg. Peak UV
› 10
Fontana
Avg. Peak UV
› 10
Riverside
Avg. Peak UV
› 10
Anaheim
Avg. Peak UV
› 10
Garden Grove
Avg. Peak UV
›

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