Weather in Portimao on 17 August 2026
Preliminary outlook for 17 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +30°C and nighttime around +19°C, average precipitation 0 mm, wind around 5 m/s, humidity around 61%.
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.
+27°C
Weather archive — latest year: 2025
Partly Cloudy
Weather archive — latest year: 2025
Nighttime: +23°C
Precipitation: 0 mm
Wind: 4 — 6 m/s
Humidity: 46%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +34°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 28% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +29°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 317° ← (W) |
Sunrise
06:52
Duration
13 h 31 min
Sunset
20:23
Moonrise
00:11
Moonset
15:38
Moon phase
Last Quarter
Illumination
37%
+25°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +20°C
Sea temperature: +21°C
Precipitation: 0 mm
Wind: 4 — 6 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +21°C |
| Feels like (avg.) | +28°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 232° ↙ (WSW) |
Sunrise
06:52
Duration
13 h 31 min
Sunset
20:23
Moonrise
19:17
Moonset
03:48
Moon phase
Waxing Gibbous
Illumination
86%
+22°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +16°C
Precipitation: 0 mm
Wind: 4 — 7 m/s
Humidity: 65%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 0% |
| 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.) | +14°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +22°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 319° ← (W) |
Sunrise
06:52
Duration
13 h 32 min
Sunset
20:24
Moonrise
07:56
Moonset
21:25
Moon phase
Waxing Crescent
Illumination
1%
+22°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +17°C
Precipitation: 0 mm
Wind: 7 — 10 m/s
Humidity: 65%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°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.) | +15°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +22°C |
| Wind gusts (max.) | 14 m/s | Wind direction (avg.) | 338° ↖ (NNW) |
Sunrise
06:52
Duration
13 h 31 min
Sunset
20:23
Moonrise
23:40
Moonset
12:42
Moon phase
Waning Gibbous
Illumination
61%
+25°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +19°C
Precipitation: 0 mm
Wind: 6 — 7 m/s
Humidity: 60%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°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.) | +26°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 324° ↖ (NW) |
Sunrise
06:52
Duration
13 h 31 min
Sunset
20:23
Moonrise
16:04
Moonset
01:02
Moon phase
First Quarter
Illumination
61%
+22°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: 77%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 4% |
| Pressure (avg.) | 763 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.) | 11 m/s | Wind direction (avg.) | 321° ← (WNW) |
Sunrise
06:52
Duration
13 h 31 min
Sunset
20:23
Moonrise
04:49
Moonset
19:42
Moon phase
Waning Crescent
Illumination
1%
Weather in Portimao on 17 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+34°C
|
+23°C
|
+27°C | 14 h | 7 | 46% | 4 — 6 m/s |
| 2024 |
+31°C
|
+20°C
|
+25°C | 14 h | 6 | 51% | 4 — 6 m/s |
| 2023 |
+30°C
|
+16°C
|
+22°C | 14 h | 6 | 65% | 4 — 7 m/s |
| 2022 |
+28°C
|
+17°C
|
+22°C | 14 h | 6 | 65% | 7 — 10 m/s |
| 2021 |
+31°C
|
+19°C
|
+25°C | 14 h | 6 | 60% | 6 — 7 m/s |
| 2020 |
+28°C
|
+17°C
|
+22°C | 14 h | 6 | 77% | 4 — 6 m/s |