Weather in Fernando De Noronha on 18 August 2026
Preliminary outlook for 18 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +38°C and nighttime around +22°C, average precipitation 0 mm, wind around 2 m/s, humidity around 35%.
This is a climate-based estimate, not a precise long-range forecast. It is replaced by hourly data when the date enters the forecast window.
+29°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +20°C
Precipitation: 0 mm
Wind: 1 — 1 m/s
Humidity: 48%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +39°C | Sun hours | 11 h |
| UV index | 7 | Cloud cover (avg.) | 9% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 3 m/s | Wind direction (avg.) | 109° ↗ (ENE) |
Sunrise
06:04
Duration
11 h 45 min
Sunset
17:49
Moonrise
01:58
Moonset
13:32
Moon phase
Last Quarter
Illumination
29%
+31°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +22°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 33%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +40°C | Sun hours | 11 h |
| UV index | 8 | Cloud cover (avg.) | 4% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +30°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 177° → (ESE) |
Sunrise
06:04
Duration
11 h 45 min
Sunset
17:49
Moonrise
16:55
Moonset
05:06
Moon phase
Waxing Gibbous
Illumination
93%
+29°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +21°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 29%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +37°C | Sun hours | 11 h |
| UV index | 7 | Cloud cover (avg.) | 7% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 29° ↑ (N) |
Sunrise
06:05
Duration
11 h 44 min
Sunset
17:49
Moonrise
07:35
Moonset
19:42
Moon phase
Waxing Crescent
Illumination
9%
+29°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +23°C
Precipitation: 0 mm
Wind: 2 — 2 m/s
Humidity: 42%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +36°C | Sun hours | 11 h |
| UV index | 7 | Cloud cover (avg.) | 12% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +29°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 307° ↖ (NW) |
Sunrise
06:05
Duration
11 h 44 min
Sunset
17:49
Moonrise
23:55
Moonset
10:55
Moon phase
Waning Gibbous
Illumination
54%
+29°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +22°C
Precipitation: 0 mm
Wind: 2 — 4 m/s
Humidity: 24%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +37°C | Sun hours | 11 h |
| UV index | 7 | Cloud cover (avg.) | 2% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +7°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 82° ↗ (ENE) |
Sunrise
06:04
Duration
11 h 45 min
Sunset
17:49
Moonrise
14:12
Moonset
02:29
Moon phase
Waxing Gibbous
Illumination
69%
+30°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +22°C
Precipitation: 0 mm
Wind: 1 — 3 m/s
Humidity: 26%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +39°C | Sun hours | 11 h |
| UV index | 7 | Cloud cover (avg.) | 3% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +29°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +30°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 335° ↖ (NNW) |
Sunrise
06:04
Duration
11 h 45 min
Sunset
17:49
Moonrise
05:43
Moonset
17:35
Moon phase
New Moon
Illumination
0%
+28°C
Weather archive — for 2019 year
Clear/Sunny
Weather archive — for 2019 year
Nighttime: +21°C
Precipitation: 0 mm
Wind: 1 — 1 m/s
Humidity: 44%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +36°C | Sun hours | 11 h |
| UV index | 7 | Cloud cover (avg.) | 25% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 260° ↑ (NNE) |
Sunrise
06:05
Duration
11 h 44 min
Sunset
17:49
Moonrise
20:24
Moonset
08:10
Moon phase
Waning Gibbous
Illumination
78%
Weather in Fernando De Noronha on 18 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+39°C
|
+20°C
|
+29°C | 11 h | 7 | 48% | 1 — 1 m/s |
| 2024 |
+40°C
|
+22°C
|
+31°C | 11 h | 8 | 33% | 2 — 3 m/s |
| 2023 |
+37°C
|
+21°C
|
+29°C | 11 h | 7 | 29% | 2 — 3 m/s |
| 2022 |
+36°C
|
+23°C
|
+29°C | 11 h | 7 | 42% | 2 — 2 m/s |
| 2021 |
+37°C
|
+22°C
|
+29°C | 11 h | 7 | 24% | 2 — 4 m/s |
| 2020 |
+39°C
|
+22°C
|
+30°C | 11 h | 7 | 26% | 1 — 3 m/s |
| 2019 |
+36°C
|
+21°C
|
+28°C | 11 h | 7 | 44% | 1 — 1 m/s |