Portugal / Vila Nova de Gaia / 17 August

Weather in Vila Nova de Gaia on 17 August 2026

Preliminary outlook for 17 August 2026

A preliminary estimate based on the 2020–2025 archive: daytime around +24°C and nighttime around +18°C, average precipitation 0.1 mm, wind around 4 m/s, humidity around 74%.

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.

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+20°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +17°C Precipitation: 0 mm Wind: 3 — 5 m/s Humidity: 70%
MetricValue MetricValue
Day temperature (max.) +23°C Sun hours 14 h
UV index 5 Cloud cover (avg.) 1%
Pressure (avg.) 764 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +20°C Dew point (avg.) +14°C
Heat index (avg.) +20°C Wind chill (avg.) +20°C
Wind gusts (max.) 6 m/s Wind direction (avg.) 329° ↖ (NW)
Sunrise
06:46
Duration
13 h 44 min
Sunset
20:30
Moonrise
Does not rise today
Moonset
15:53
Moon phase
Last Quarter
Illumination
37%
+21°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +19°C Sea temperature: +18°C Precipitation: 0 mm Wind: 5 — 8 m/s
MetricValue MetricValue
Day temperature (max.) +25°C Sun hours 14 h
UV index 6 Cloud cover (avg.) 4%
Pressure (avg.) 762 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature +18°C
Feels like (avg.) +22°C Dew point (avg.) +16°C
Heat index (avg.) +22°C Wind chill (avg.) +22°C
Wind gusts (max.) 13 m/s Wind direction (avg.) 339° ↖ (NW)
Sunrise
06:46
Duration
13 h 44 min
Sunset
20:30
Moonrise
19:32
Moonset
03:33
Moon phase
Waxing Gibbous
Illumination
86%
+20°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +17°C Precipitation: 0 mm Wind: 2 — 3 m/s Humidity: 81%
MetricValue MetricValue
Day temperature (max.) +23°C Sun hours 14 h
UV index 4 Cloud cover (avg.) 46%
Pressure (avg.) 762 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +21°C Dew point (avg.) +16°C
Heat index (avg.) +21°C Wind chill (avg.) +20°C
Wind gusts (max.) 6 m/s Wind direction (avg.) 242° ← (W)
Sunrise
06:45
Duration
13 h 46 min
Sunset
20:31
Moonrise
07:50
Moonset
21:29
Moon phase
Waxing Crescent
Illumination
1%
+19°C
Weather archive — for 2022 year
Cloudy
Weather archive — for 2022 year
Nighttime: +16°C Precipitation: 0 mm Wind: 5 — 8 m/s Humidity: 76%
MetricValue MetricValue
Day temperature (max.) +24°C Sun hours 10 h
UV index 5 Cloud cover (avg.) 40%
Pressure (avg.) 762 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +20°C Dew point (avg.) +15°C
Heat index (avg.) +20°C Wind chill (avg.) +19°C
Wind gusts (max.) 13 m/s Wind direction (avg.) 340° ↖ (NW)
Sunrise
06:46
Duration
13 h 44 min
Sunset
20:30
Moonrise
23:33
Moonset
12:49
Moon phase
Waning Gibbous
Illumination
61%
+23°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +19°C Precipitation: 0 mm Wind: 4 — 7 m/s Humidity: 58%
MetricValue MetricValue
Day temperature (max.) +27°C Sun hours 14 h
UV index 6 Cloud cover (avg.) 0%
Pressure (avg.) 764 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +23°C Dew point (avg.) +13°C
Heat index (avg.) +23°C Wind chill (avg.) +23°C
Wind gusts (max.) 10 m/s Wind direction (avg.) 170° ↖ (NW)
Sunrise
06:46
Duration
13 h 44 min
Sunset
20:30
Moonrise
16:17
Moonset
00:51
Moon phase
First Quarter
Illumination
61%
+19°C
Weather archive — for 2020 year
Overcast
Weather archive — for 2020 year
Nighttime: +18°C Precipitation: 0.5 mm Wind: 4 — 6 m/s Humidity: 90%
MetricValue MetricValue
Day temperature (max.) +21°C Sun hours 1 h
UV index 4 Cloud cover (avg.) 83%
Pressure (avg.) 761 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 8 km Sea temperature
Feels like (avg.) +20°C Dew point (avg.) +17°C
Heat index (avg.) +20°C Wind chill (avg.) +20°C
Wind gusts (max.) 11 m/s Wind direction (avg.) 188° ↓ (SSW)
Sunrise
06:46
Duration
13 h 44 min
Sunset
20:30
Moonrise
04:37
Moonset
19:53
Moon phase
Waning Crescent
Illumination
1%

Weather in Vila Nova de Gaia on 17 August in previous years

Year Day Nighttime Average Sun UV Humidity Wind
2025 +23°C +17°C +20°C 14 h 5 70% 3 — 5 m/s
2024 +25°C +19°C +21°C 14 h 6 71% 5 — 8 m/s
2023 +23°C +17°C +20°C 14 h 4 81% 2 — 3 m/s
2022 +24°C +16°C +19°C 10 h 5 76% 5 — 8 m/s
2021 +27°C +19°C +23°C 14 h 6 58% 4 — 7 m/s
2020 +21°C +18°C +19°C 1 h 4 90% 4 — 6 m/s