Colonia del Sacramento, Uruguay UV Index in May
The average UV index in Colonia del Sacramento, Uruguay in May is about 7.5 (High), peaking near 11.8 at midday on clear days. Fair skin (Type II) can burn in roughly 12 minutes without sunscreen. SPF 30–50 sunscreen, a hat and sunglasses are essential. Seek shade between 11am and 3pm.
What is the UV index in Colonia del Sacramento, Uruguay in May?
Average UV
7.5
High
Midday Peak
11.8
Clear-sky estimate
Fair Skin Burn Time
12 min
Type II, no sunscreen
How long can you stay in the sun in Colonia del Sacramento, Uruguay in May?
| Skin type | Time to first burn | With SPF 30 |
|---|---|---|
| Type 1 | 8 min | up to 240 min |
| Type 2 | 12 min | up to 240 min |
| Type 3 | 20 min | up to 240 min |
| Type 4 | 32 min | up to 240 min |
| Type 5 | 48 min | up to 240 min |
| Type 6 | 72 min | up to 240 min |
Estimates based on Colonia del Sacramento, Uruguay'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.
Colonia del Sacramento, Uruguay UV Index by Month
When is the UV index highest and lowest in Colonia del Sacramento, Uruguay?
Highest: December (about 10.1). Lowest: June (about 7).
| Month | Average UV | Midday peak | Level | Fair skin burn |
|---|---|---|---|---|
| January | 10 | 12 | Very High | 9 min |
| February | 9.8 | 12 | Very High | 9 min |
| March | 9.2 | 12 | Very High | 10 min |
| April | 8.4 | 12 | Very High | 11 min |
| May | 7.5 | 11.8 | High | 12 min |
| June | 7 | 11 | High | 13 min |
| July | 7.2 | 11.3 | High | 13 min |
| August | 8 | 12 | Very High | 11 min |
| September | 8.9 | 12 | Very High | 10 min |
| October | 9.6 | 12 | Very High | 9 min |
| November | 10 | 12 | Very High | 9 min |
| December | 10.1 | 12 | Very High | 9 min |
Common questions about UV in Colonia del Sacramento, Uruguay in May
Do you need sunscreen in Colonia del Sacramento, Uruguay in May?
Yes. A UV index of 7.5 is High, so use SPF 30+ on exposed skin between 10am and 4pm and reapply every two hours.
Can you tan in Colonia del Sacramento, Uruguay in May?
Yes, UV of 7.5 is strong enough to tan. Fair skin can burn in about 12 minutes, so build exposure slowly and use sunscreen.
What time of day is UV strongest in Colonia del Sacramento, Uruguay?
UV peaks around solar noon, roughly 11am to 2pm local time, when it can reach about 11.8 in May. Mornings and late afternoons are safest.
Is May a good month to visit Colonia del Sacramento, Uruguay for the sun?
May averages UV 7.5, compared with a yearly high of 10.1 in December and a low of 7 in June. Darker skin (Type VI) can burn in about 72 minutes at this level.