Fernando de Noronha, Brazil UV Index in September
The average UV index in Fernando de Noronha, Brazil in September is about 11.7 (Extreme), peaking near 12 at midday on clear days. Fair skin (Type II) can burn in roughly 8 minutes without sunscreen. Avoid direct sun between 10am and 4pm. SPF 50+, full protective clothing, hat and sunglasses are essential.
What is the UV index in Fernando de Noronha, Brazil in September?
Average UV
11.7
Extreme
Midday Peak
12
Clear-sky estimate
Fair Skin Burn Time
8 min
Type II, no sunscreen
How long can you stay in the sun in Fernando de Noronha, Brazil in September?
| Skin type | Time to first burn | With SPF 30 |
|---|---|---|
| Type 1 | 5 min | up to 150 min |
| Type 2 | 8 min | up to 240 min |
| Type 3 | 13 min | up to 240 min |
| Type 4 | 21 min | up to 240 min |
| Type 5 | 31 min | up to 240 min |
| Type 6 | 46 min | up to 240 min |
Estimates based on Fernando de Noronha, Brazil's latitude and typical September 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.
Fernando de Noronha, Brazil UV Index by Month
When is the UV index highest and lowest in Fernando de Noronha, Brazil?
Highest: March (about 11.8). Lowest: June (about 11).
| Month | Average UV | Midday peak | Level | Fair skin burn |
|---|---|---|---|---|
| January | 11.5 | 12 | Extreme | 8 min |
| February | 11.7 | 12 | Extreme | 8 min |
| March | 11.8 | 12 | Extreme | 8 min |
| April | 11.6 | 12 | Extreme | 8 min |
| May | 11.2 | 12 | Extreme | 8 min |
| June | 11 | 12 | Extreme | 8 min |
| July | 11.1 | 12 | Extreme | 8 min |
| August | 11.4 | 12 | Extreme | 8 min |
| September | 11.7 | 12 | Extreme | 8 min |
| October | 11.8 | 12 | Extreme | 8 min |
| November | 11.5 | 12 | Extreme | 8 min |
| December | 11.4 | 12 | Extreme | 8 min |
Common questions about UV in Fernando de Noronha, Brazil in September
Do you need sunscreen in Fernando de Noronha, Brazil in September?
Yes. A UV index of 11.7 is Extreme, so use SPF 30+ on exposed skin between 10am and 4pm and reapply every two hours.
Can you tan in Fernando de Noronha, Brazil in September?
Yes, UV of 11.7 is strong enough to tan. Fair skin can burn in about 8 minutes, so build exposure slowly and use sunscreen.
What time of day is UV strongest in Fernando de Noronha, Brazil?
UV peaks around solar noon, roughly 11am to 2pm local time, when it can reach about 12 in September. Mornings and late afternoons are safest.
Is September a good month to visit Fernando de Noronha, Brazil for the sun?
September averages UV 11.7, compared with a yearly high of 11.8 in March and a low of 11 in June. Darker skin (Type VI) can burn in about 46 minutes at this level.