UV Index in Bay St. Louis

Real-time UV forecast & tanning weather

Current Conditions

Loading live weather data...
0
Low
UV Index
🌡️
27°C
Temperature
⛈️
Thunderstorm
Conditions
☀️
Peak Tanning Window 1PM • UV 9

Hourly UV Forecast

☀️ Excellent tanning conditions • 10AM–6PM • 30°C • 8 km/h 🌬️
0
6AM
0
7AM
1
8AM
3
9AM
5
10AM
7
11AM
8
12PM
9
1PM
9
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
Mon 1
Excellent
8
Tue 2
Excellent
4
Wed 3
Fair
7
Thu 4
Good
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
6
Mon 15
Good
0
Tue 16
Poor

Location & Climate

In Bay St. Louis, 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.

Beach and coastal destinations benefit from cooling sea breezes, but UV reflected from water and sand can increase your total exposure by up to 25%. Apply sunscreen more frequently and protect your eyes.

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

Bay St. Louis 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 Bay St. Louis

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 Bay St. Louis

Based on average UV levels, the best months for tanning in Bay St. Louis 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 → Best Time of Day to Tan → How to Get Rid of a 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 Bay St. Louis right now?
The current UV index in Bay St. Louis 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 Bay St. Louis?
The best months for tanning in Bay St. Louis are April, May, June, July, August, September, October, when average UV levels reach 7 or higher.
How long should I tan in Bay St. Louis?
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 Bay St. Louis?
UV levels in Bay St. Louis 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
Pass Christian
Avg. Peak UV
› 10
Long Beach
Avg. Peak UV
› 10
Gulfport
Avg. Peak UV
› 10
Biloxi
Avg. Peak UV
› 10
Ocean Springs
Avg. Peak UV
› 11
New Orleans
Avg. Peak UV
›

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