Weather in Cascais on 19 August 2026
Preliminary outlook for 19 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +23°C and nighttime around +19°C, average precipitation 0 mm, wind around 6 m/s, humidity around 81%.
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.
+20°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +19°C
Precipitation: 0 mm
Wind: 8 — 9 m/s
Humidity: 84%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 14 h |
| UV index | 5 | Cloud cover (avg.) | 13% |
| 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.) | +17°C |
| Heat index (avg.) | +20°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 339° ↖ (NNW) |
Sunrise
06:55
Duration
13 h 31 min
Sunset
20:26
Moonrise
01:56
Moonset
18:01
Moon phase
Waning Crescent
Illumination
22%
+20°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +19°C
Sea temperature: +20°C
Precipitation: 0 mm
Wind: 9 — 9 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +22°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 9% |
| 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.) | 15 m/s | Wind direction (avg.) | 345° ↖ (NNW) |
Sunrise
06:55
Duration
13 h 31 min
Sunset
20:26
Moonrise
20:34
Moonset
06:05
Moon phase
Full Moon
Illumination
100%
+22°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +20°C
Precipitation: 0 mm
Wind: 3 — 5 m/s
Humidity: 86%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +25°C | Sun hours | 12 h |
| UV index | 6 | Cloud cover (avg.) | 17% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +23°C | Dew point (avg.) | +20°C |
| Heat index (avg.) | +23°C | Wind chill (avg.) | +22°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 301° ← (W) |
Sunrise
06:54
Duration
13 h 33 min
Sunset
20:27
Moonrise
09:56
Moonset
22:11
Moon phase
Waxing Crescent
Illumination
16%
+23°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +19°C
Precipitation: 0 mm
Wind: 5 — 7 m/s
Humidity: 66%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°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.) | +12°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 141° ↓ (SSW) |
Sunrise
06:55
Duration
13 h 32 min
Sunset
20:27
Moonrise
00:12
Moonset
15:04
Moon phase
Last Quarter
Illumination
47%
+19°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +18°C
Precipitation: 0 mm
Wind: 7 — 9 m/s
Humidity: 81%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +22°C | Sun hours | 14 h |
| UV index | 5 | Cloud cover (avg.) | 8% |
| Pressure (avg.) | 761 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.) | +20°C |
| Wind gusts (max.) | 14 m/s | Wind direction (avg.) | 342° ↖ (NNW) |
Sunrise
06:55
Duration
13 h 31 min
Sunset
20:26
Moonrise
18:28
Moonset
02:45
Moon phase
Waxing Gibbous
Illumination
76%
+21°C
Weather archive — for 2020 year
Partly Cloudy
Weather archive — for 2020 year
Nighttime: +19°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 87%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 48% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 272° ↙ (SW) |
Sunrise
06:55
Duration
13 h 31 min
Sunset
20:26
Moonrise
06:55
Moonset
21:03
Moon phase
New Moon
Illumination
0%
Weather in Cascais on 19 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+21°C
|
+19°C
|
+20°C | 14 h | 5 | 84% | 8 — 9 m/s |
| 2024 |
+22°C
|
+19°C
|
+20°C | 14 h | 6 | 81% | 9 — 9 m/s |
| 2023 |
+25°C
|
+20°C
|
+22°C | 12 h | 6 | 86% | 3 — 5 m/s |
| 2022 |
+27°C
|
+19°C
|
+23°C | 14 h | 6 | 66% | 5 — 7 m/s |
| 2021 |
+22°C
|
+18°C
|
+19°C | 14 h | 5 | 81% | 7 — 9 m/s |
| 2020 |
+23°C
|
+19°C
|
+21°C | 14 h | 6 | 87% | 3 — 4 m/s |