El Chaltén, Argentina UV Index in May
The average UV index in El Chaltén, Argentina in May is about 5.7 (Moderate), peaking near 11.4 at midday on clear days. Fair skin (Type II) can burn in roughly 16 minutes without sunscreen. Wear SPF 30+ sunscreen if you are outside for more than an hour, especially near water or sand.
What is the UV index in El Chaltén, Argentina in May?
Average UV
5.7
Moderate
Midday Peak
11.4
Clear-sky estimate
Fair Skin Burn Time
16 min
Type II, no sunscreen
How long can you stay in the sun in El Chaltén, Argentina in May?
| Skin type | Time to first burn | With SPF 30 |
|---|---|---|
| Type 1 | 11 min | up to 240 min |
| Type 2 | 16 min | up to 240 min |
| Type 3 | 26 min | up to 240 min |
| Type 4 | 42 min | up to 240 min |
| Type 5 | 63 min | up to 240 min |
| Type 6 | 95 min | up to 240 min |
Estimates based on El Chaltén, Argentina's latitude and typical May sun angle. Cloud cover, altitude and reflection from water or sand can raise or lower the real UV. Check the live forecast before long days outside.
El Chaltén, Argentina UV Index by Month
When is the UV index highest and lowest in El Chaltén, Argentina?
Highest: December (about 9.6). Lowest: June (about 5).
| Month | Average UV | Midday peak | Level | Fair skin burn |
|---|---|---|---|---|
| January | 9.5 | 12 | Very High | 9 min |
| February | 9.1 | 12 | Very High | 10 min |
| March | 8.2 | 12 | Very High | 11 min |
| April | 6.9 | 12 | High | 13 min |
| May | 5.7 | 11.4 | Moderate | 16 min |
| June | 5 | 10 | Moderate | 18 min |
| July | 5.3 | 10.6 | Moderate | 17 min |
| August | 6.4 | 12 | High | 14 min |
| September | 7.7 | 12 | High | 12 min |
| October | 8.8 | 12 | Very High | 10 min |
| November | 9.4 | 12 | Very High | 10 min |
| December | 9.6 | 12 | Very High | 9 min |
Common questions about UV in El Chaltén, Argentina in May
Do you need sunscreen in El Chaltén, Argentina in May?
Yes. A UV index of 5.7 is Moderate, so use SPF 30+ on exposed skin between 10am and 4pm and reapply every two hours.
Can you tan in El Chaltén, Argentina in May?
Yes, UV of 5.7 is strong enough to tan. Fair skin can burn in about 16 minutes, so build exposure slowly and use sunscreen.
What time of day is UV strongest in El Chaltén, Argentina?
UV peaks around solar noon, roughly 11am to 2pm local time, when it can reach about 11.4 in May. Mornings and late afternoons are safest.
Is May a good month to visit El Chaltén, Argentina for the sun?
May averages UV 5.7, compared with a yearly high of 9.6 in December and a low of 5 in June. Darker skin (Type VI) can burn in about 95 minutes at this level.