Weather in Quarteira on 18 August 2026
Preliminary outlook for 18 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +30°C and nighttime around +20°C, average precipitation 0 mm, wind around 5 m/s, humidity around 57%.
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
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +23°C
Precipitation: 0 mm
Wind: 6 — 8 m/s
Humidity: 38%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 7% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 14 m/s | Wind direction (avg.) | 334° ↖ (NNW) |
Sunrise
06:51
Duration
13 h 29 min
Sunset
20:20
Moonrise
00:58
Moonset
16:46
Moon phase
Last Quarter
Illumination
29%
+27°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +22°C
Sea temperature: +22°C
Precipitation: 0 mm
Wind: 6 — 7 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +33°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +22°C |
| Feels like (avg.) | +31°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +30°C |
| Wind gusts (max.) | 14 m/s | Wind direction (avg.) | 343° ↖ (NNW) |
Sunrise
06:52
Duration
13 h 28 min
Sunset
20:20
Moonrise
19:53
Moonset
04:53
Moon phase
Waxing Gibbous
Illumination
93%
+23°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +19°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 68%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°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 | — |
| Feels like (avg.) | +24°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +24°C | Wind chill (avg.) | +23°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 300° ↙ (WSW) |
Sunrise
06:51
Duration
13 h 30 min
Sunset
20:21
Moonrise
08:53
Moonset
21:45
Moon phase
Waxing Crescent
Illumination
9%
+24°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +18°C
Precipitation: 0 mm
Wind: 4 — 7 m/s
Humidity: 58%
| 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.) | +23°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +23°C | Wind chill (avg.) | +23°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 282° ↓ (S) |
Sunrise
06:51
Duration
13 h 29 min
Sunset
20:20
Moonrise
Does not rise today
Moonset
13:48
Moon phase
Last Quarter
Illumination
54%
+24°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +20°C
Precipitation: 0 mm
Wind: 3 — 6 m/s
Humidity: 58%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°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.) | +25°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 216° ↘ (SSE) |
Sunrise
06:51
Duration
13 h 29 min
Sunset
20:20
Moonrise
17:12
Moonset
01:48
Moon phase
Waxing Gibbous
Illumination
69%
+24°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +19°C
Precipitation: 0 mm
Wind: 5 — 8 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 14 h |
| UV index | 6 | Cloud cover (avg.) | 4% |
| 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.) | +17°C |
| Heat index (avg.) | +25°C | Wind chill (avg.) | +25°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 323° ↖ (NW) |
Sunrise
06:52
Duration
13 h 28 min
Sunset
20:20
Moonrise
05:49
Moonset
20:20
Moon phase
New Moon
Illumination
0%
Weather in Quarteira on 18 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+32°C
|
+23°C
|
+27°C | 14 h | 7 | 38% | 6 — 8 m/s |
| 2024 |
+33°C
|
+22°C
|
+27°C | 14 h | 7 | 49% | 6 — 7 m/s |
| 2023 |
+28°C
|
+19°C
|
+23°C | 14 h | 6 | 68% | 4 — 5 m/s |
| 2022 |
+30°C
|
+18°C
|
+24°C | 14 h | 6 | 58% | 4 — 7 m/s |
| 2021 |
+28°C
|
+20°C
|
+24°C | 14 h | 6 | 58% | 3 — 6 m/s |
| 2020 |
+29°C
|
+19°C
|
+24°C | 14 h | 6 | 72% | 5 — 8 m/s |