UV Index in Ha Long Bay

Real-time UV forecast & tanning weather

Current Conditions

Loading live weather data...
9
Very High
UV Index
🌡️
33°C
Temperature
☀️
Clear sky
Conditions
☀️
Peak Tanning Window 12PM • UV 9

Hourly UV Forecast

☀️ Excellent tanning conditions 9AM–5PM 32°C • 11 km/h 🌬️
0
6AM
1
7AM
3
8AM
5
9AM
7
10AM
8
11AM
9
12PM
9
NOW
8
2PM
6
3PM
4
4PM
2
5PM
1
6PM
0
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
7
Tue 2
Excellent
7
Wed 3
Excellent
9
Thu 4
Excellent
8
Fri 5
Excellent
8
Sat 6
Excellent
4
Sun 7
Good
7
Mon 8
Excellent
4
Tue 9
Excellent
2
Wed 10
Poor
5
Thu 11
Excellent
6
Fri 12
Excellent
7
Sat 13
Excellent
7
Sun 14
Good
1
Mon 15
Poor
5
Tue 16
Excellent

Location & Climate

In Ha Long Bay, UV rises from 6 in January to 11 in June, with peak tanning months being May, June, July, August, September. Expect the strongest sun between late spring and early fall.

Year-round UV makes tanning possible any month, but monsoon season brings unpredictable cloud cover. Plan sessions during dry season for the most consistent results.

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.

In this tropical location, SPF 50+ broad-spectrum sunscreen is essential year-round. Reapply every 60-90 minutes, especially after swimming or sweating.

Tanning Tips

UV levels in Ha Long Bay are high year-round due to its tropical location. Always wear SPF 30+ and limit initial sessions to 15-20 minutes.

Weather data by Open-Meteo (CC BY 4.0)

Monthly UV Index in Ha Long Bay

Average daily maximum UV index by month

Jan
6
Feb
6
Mar
7
Apr
9
May
10
Jun
11
Jul
11
Aug
11
Sep
10
Oct
9
Nov
7
Dec
6
Low Moderate High Very High Extreme

Best Months to Tan in Ha Long Bay

Based on average UV levels, the best months for tanning in Ha Long Bay are:

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

Rating based on average monthly UV index

Frequently Asked Questions

What is the UV index in Ha Long Bay right now?
The current UV index in Ha Long Bay 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 Ha Long Bay?
The best months for tanning in Ha Long Bay are March, April, May, June, July, August, September, October, November, when average UV levels reach 7 or higher.
How long should I tan in Ha Long Bay?
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 11?
UV index 11 is classified as Extreme. Extreme — stay in shade during peak hours. Tanning is not recommended without strong protection.
When is the peak UV time in Ha Long Bay?
UV levels in Ha Long Bay typically peak between 11:00 AM and 2:00 PM local time. The exact peak depends on the season, cloud cover, and altitude.

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