Weather in Cascais on 12 August 2026
Preliminary outlook for 12 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +24°C and nighttime around +19°C, average precipitation 0 mm, wind around 5 m/s, humidity around 78%.
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.
+23°C
Weather archive — latest year: 2025
Partly Cloudy
Weather archive — latest year: 2025
Nighttime: +21°C
Precipitation: 0 mm
Wind: 4 — 7 m/s
Humidity: 61%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 23% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +26°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +24°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 187° ↖ (NW) |
Sunrise
06:49
Duration
13 h 47 min
Sunset
20:36
Moonrise
22:13
Moonset
09:56
Moon phase
Waning Gibbous
Illumination
73%
+21°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +19°C
Sea temperature: +20°C
Precipitation: 0 mm
Wind: 6 — 8 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 15% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +20°C |
| Feels like (avg.) | +22°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 13 m/s | Wind direction (avg.) | 347° ↖ (NNW) |
Sunrise
06:49
Duration
13 h 46 min
Sunset
20:35
Moonrise
14:52
Moonset
Does not set today
Moon phase
First Quarter
Illumination
50%
+22°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +19°C
Precipitation: 0 mm
Wind: 6 — 8 m/s
Humidity: 77%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +25°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 18% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +23°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +23°C | Wind chill (avg.) | +23°C |
| Wind gusts (max.) | 13 m/s | Wind direction (avg.) | 264° ↖ (NNW) |
Sunrise
06:48
Duration
13 h 48 min
Sunset
20:36
Moonrise
02:44
Moonset
18:40
Moon phase
Waning Crescent
Illumination
20%
+21°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +18°C
Precipitation: 0 mm
Wind: 3 — 6 m/s
Humidity: 80%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 4% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +22°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +22°C |
| Wind gusts (max.) | 10 m/s | Wind direction (avg.) | 251° ↖ (NNW) |
Sunrise
06:49
Duration
13 h 47 min
Sunset
20:36
Moonrise
21:15
Moonset
06:34
Moon phase
Full Moon
Illumination
100%
+20°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +18°C
Precipitation: 0 mm
Wind: 7 — 8 m/s
Humidity: 79%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +24°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 8% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +22°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 13 m/s | Wind direction (avg.) | 350° ↑ (N) |
Sunrise
06:49
Duration
13 h 47 min
Sunset
20:36
Moonrise
10:35
Moonset
22:59
Moon phase
Waxing Crescent
Illumination
25%
+19°C
Weather archive — for 2020 year
Overcast
Weather archive — for 2020 year
Nighttime: +18°C
Precipitation: 0 mm
Wind: 6 — 7 m/s
Humidity: 89%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 5 h |
| UV index | 4 | Cloud cover (avg.) | 78% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 7 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.) | 327° ↖ (NW) |
Sunrise
06:49
Duration
13 h 46 min
Sunset
20:35
Moonrise
01:02
Moonset
15:29
Moon phase
Last Quarter
Illumination
38%
Weather in Cascais on 12 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+26°C
|
+21°C
|
+23°C | 14 h | 6 | 61% | 4 — 7 m/s |
| 2024 |
+23°C
|
+19°C
|
+21°C | 14 h | 6 | 84% | 6 — 8 m/s |
| 2023 |
+25°C
|
+19°C
|
+22°C | 14 h | 6 | 77% | 6 — 8 m/s |
| 2022 |
+26°C
|
+18°C
|
+21°C | 14 h | 6 | 80% | 3 — 6 m/s |
| 2021 |
+24°C
|
+18°C
|
+20°C | 14 h | 6 | 79% | 7 — 8 m/s |
| 2020 |
+21°C
|
+18°C
|
+19°C | 5 h | 4 | 89% | 6 — 7 m/s |