Portugal / Angra do Heroismo / 17 August

Weather in Angra do Heroismo 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 +21°C, average precipitation 0.3 mm, wind around 6 m/s, humidity around 80%.

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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+21°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +19°C Precipitation: 0.1 mm Wind: 4 — 4 m/s Humidity: 66%
MetricValue MetricValue
Day temperature (max.) +23°C Sun hours 13 h
UV index 5 Cloud cover (avg.) 24%
Pressure (avg.) 765 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +22°C Dew point (avg.) +14°C
Heat index (avg.) +22°C Wind chill (avg.) +21°C
Wind gusts (max.) 6 m/s Wind direction (avg.) 291° ← (WNW)
Sunrise
07:05
Duration
13 h 35 min
Sunset
20:40
Moonrise
00:23
Moonset
16:02
Moon phase
Last Quarter
Illumination
37%
+23°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +21°C Sea temperature: +23°C Precipitation: 0 mm Wind: 2 — 3 m/s
MetricValue MetricValue
Day temperature (max.) +26°C Sun hours 11 h
UV index 6 Cloud cover (avg.) 26%
Pressure (avg.) 770 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature +23°C
Feels like (avg.) +25°C Dew point (avg.) +20°C
Heat index (avg.) +26°C Wind chill (avg.) +24°C
Wind gusts (max.) 5 m/s Wind direction (avg.) 66° ↗ (ENE)
Sunrise
07:05
Duration
13 h 35 min
Sunset
20:40
Moonrise
19:39
Moonset
04:00
Moon phase
Waxing Gibbous
Illumination
86%
+24°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +23°C Precipitation: 0 mm Wind: 8 — 10 m/s Humidity: 88%
MetricValue MetricValue
Day temperature (max.) +25°C Sun hours 8 h
UV index 6 Cloud cover (avg.) 64%
Pressure (avg.) 763 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +27°C Dew point (avg.) +22°C
Heat index (avg.) +27°C Wind chill (avg.) +24°C
Wind gusts (max.) 13 m/s Wind direction (avg.) 260° ← (W)
Sunrise
07:04
Duration
13 h 37 min
Sunset
20:41
Moonrise
08:12
Moonset
21:42
Moon phase
Waxing Crescent
Illumination
1%
+20°C
Weather archive — for 2022 year
Cloudy
Weather archive — for 2022 year
Nighttime: +19°C Precipitation: 0 mm Wind: 5 — 5 m/s Humidity: 68%
MetricValue MetricValue
Day temperature (max.) +22°C Sun hours 13 h
UV index 6 Cloud cover (avg.) 38%
Pressure (avg.) 772 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +22°C Dew point (avg.) +14°C
Heat index (avg.) +22°C Wind chill (avg.) +21°C
Wind gusts (max.) 7 m/s Wind direction (avg.) 61° ↗ (ENE)
Sunrise
07:04
Duration
13 h 37 min
Sunset
20:41
Moonrise
23:54
Moonset
13:03
Moon phase
Waning Gibbous
Illumination
61%
+23°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +21°C Precipitation: 0 mm Wind: 4 — 5 m/s Humidity: 84%
MetricValue MetricValue
Day temperature (max.) +24°C Sun hours 13 h
UV index 5 Cloud cover (avg.) 45%
Pressure (avg.) 770 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +24°C Dew point (avg.) +20°C
Heat index (avg.) +25°C Wind chill (avg.) +23°C
Wind gusts (max.) 6 m/s Wind direction (avg.) 200° ↓ (SSW)
Sunrise
07:05
Duration
13 h 35 min
Sunset
20:40
Moonrise
16:28
Moonset
01:15
Moon phase
First Quarter
Illumination
61%
+23°C
Weather archive — for 2020 year
Patchy rain nearby
Weather archive — for 2020 year
Nighttime: +22°C Precipitation: 1.9 mm Wind: 10 — 12 m/s Humidity: 90%
MetricValue MetricValue
Day temperature (max.) +23°C Sun hours 5 h
UV index 5 Cloud cover (avg.) 69%
Pressure (avg.) 761 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +24°C Dew point (avg.) +21°C
Heat index (avg.) +25°C Wind chill (avg.) +23°C
Wind gusts (max.) 17 m/s Wind direction (avg.) 238° ↙ (WSW)
Sunrise
07:05
Duration
13 h 35 min
Sunset
20:40
Moonrise
05:02
Moonset
20:03
Moon phase
Waning Crescent
Illumination
1%

Weather in Angra do Heroismo on 17 August in previous years

Year Day Nighttime Average Sun UV Humidity Wind
2025 +23°C +19°C +21°C 13 h 5 66% 4 — 4 m/s
2024 +26°C +21°C +23°C 11 h 6 82% 2 — 3 m/s
2023 +25°C +23°C +24°C 8 h 6 88% 8 — 10 m/s
2022 +22°C +19°C +20°C 13 h 6 68% 5 — 5 m/s
2021 +24°C +21°C +23°C 13 h 5 84% 4 — 5 m/s
2020 +23°C +22°C +23°C 5 h 5 90% 10 — 12 m/s