UV Index in Fort Collins
Real-time UV forecast & tanning weather
Current Conditions
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Monthly UV Index in Fort Collins
Average daily maximum UV index by month
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | Moderate |
| May | 6 | High |
| Jun | 8 | Very High |
| Jul | 8 | Very High |
| Aug | 8 | Very High |
| Sep | 6 | High |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 1 | Low |
Best Months to Tan in Fort Collins
Based on average UV levels, the best months for tanning in Fort Collins are:
Rating based on average monthly UV index
Tanning Guide for Fort Collins
Location & Climate
In Fort Collins, UV rises from 1 in January to 8 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.
SPF 15-30 is adequate during summer tanning sessions. In winter, UV levels are typically too low to require sunscreen for tanning purposes, though daily SPF is always good skincare practice.
Tanning Tips
Fort Collins has a distinct tanning season from April to October. Winter UV is too low for effective tanning.
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Frequently Asked Questions
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