Portugal / Portimao / 4 August

Weather in Portimao on 4 August 2026

Preliminary outlook for 4 August 2026

A preliminary estimate based on the 2020–2025 archive: daytime around +30°C and nighttime around +18°C, average precipitation 0 mm, wind around 4 m/s, humidity around 64%.

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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Nearby days
5 August →
+24°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +21°C Precipitation: 0 mm Wind: 4 — 6 m/s Humidity: 72%
MetricValue MetricValue
Day temperature (max.) +27°C Sun hours 14 h
UV index 6 Cloud cover (avg.) 6%
Pressure (avg.) 763 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +26°C Dew point (avg.) +18°C
Heat index (avg.) +26°C Wind chill (avg.) +24°C
Wind gusts (max.) 7 m/s Wind direction (avg.) 112° ↘ (SE)
Sunrise
06:41
Duration
13 h 57 min
Sunset
20:38
Moonrise
17:40
Moonset
01:56
Moon phase
Waxing Gibbous
Illumination
69%
+24°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +19°C Sea temperature: +20°C Precipitation: 0 mm Wind: 3 — 4 m/s
MetricValue MetricValue
Day temperature (max.) +28°C Sun hours 14 h
UV index 6 Cloud cover (avg.) 0%
Pressure (avg.) 760 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature +20°C
Feels like (avg.) +25°C Dew point (avg.) +15°C
Heat index (avg.) +25°C Wind chill (avg.) +25°C
Wind gusts (max.) 8 m/s Wind direction (avg.) 291° ↓ (SSW)
Sunrise
06:42
Duration
13 h 56 min
Sunset
20:38
Moonrise
06:26
Moonset
21:07
Moon phase
New Moon
Illumination
0%
+25°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +17°C Precipitation: 0 mm Wind: 5 — 7 m/s Humidity: 54%
MetricValue MetricValue
Day temperature (max.) +33°C Sun hours 14 h
UV index 6 Cloud cover (avg.) 0%
Pressure (avg.) 762 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +25°C Dew point (avg.) +10°C
Heat index (avg.) +25°C Wind chill (avg.) +25°C
Wind gusts (max.) 11 m/s Wind direction (avg.) 336° ↖ (NNW)
Sunrise
06:41
Duration
13 h 58 min
Sunset
20:39
Moonrise
22:35
Moonset
09:19
Moon phase
Waning Gibbous
Illumination
78%
+24°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +18°C Precipitation: 0 mm Wind: 4 — 6 m/s Humidity: 69%
MetricValue MetricValue
Day temperature (max.) +32°C Sun hours 14 h
UV index 6 Cloud cover (avg.) 0%
Pressure (avg.) 759 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +25°C Dew point (avg.) +17°C
Heat index (avg.) +25°C Wind chill (avg.) +24°C
Wind gusts (max.) 10 m/s Wind direction (avg.) 308° ↙ (WSW)
Sunrise
06:41
Duration
13 h 57 min
Sunset
20:38
Moonrise
13:07
Moonset
Does not set today
Moon phase
First Quarter
Illumination
44%
+23°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +18°C Precipitation: 0 mm Wind: 6 — 9 m/s Humidity: 64%
MetricValue MetricValue
Day temperature (max.) +29°C Sun hours 14 h
UV index 6 Cloud cover (avg.) 3%
Pressure (avg.) 763 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +24°C Dew point (avg.) +15°C
Heat index (avg.) +24°C Wind chill (avg.) +24°C
Wind gusts (max.) 14 m/s Wind direction (avg.) 334° ↖ (NNW)
Sunrise
06:41
Duration
13 h 57 min
Sunset
20:38
Moonrise
02:58
Moonset
18:13
Moon phase
Waning Crescent
Illumination
18%
+24°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +17°C Precipitation: 0 mm Wind: 4 — 6 m/s Humidity: 65%
MetricValue MetricValue
Day temperature (max.) +31°C Sun hours 14 h
UV index 6 Cloud cover (avg.) 1%
Pressure (avg.) 760 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +25°C Dew point (avg.) +15°C
Heat index (avg.) +25°C Wind chill (avg.) +24°C
Wind gusts (max.) 10 m/s Wind direction (avg.) 316° ← (W)
Sunrise
06:42
Duration
13 h 56 min
Sunset
20:38
Moonrise
21:38
Moonset
07:15
Moon phase
Full Moon
Illumination
100%

Weather in Portimao on 4 August in previous years

Year Day Nighttime Average Sun UV Humidity Wind
2025 +27°C +21°C +24°C 14 h 6 72% 4 — 6 m/s
2024 +28°C +19°C +24°C 14 h 6 59% 3 — 4 m/s
2023 +33°C +17°C +25°C 14 h 6 54% 5 — 7 m/s
2022 +32°C +18°C +24°C 14 h 6 69% 4 — 6 m/s
2021 +29°C +18°C +23°C 14 h 6 64% 6 — 9 m/s
2020 +31°C +17°C +24°C 14 h 6 65% 4 — 6 m/s