Weather in Piraeus on 21 October 2026
Preliminary outlook for 21 October 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +21°C and nighttime around +15°C, average precipitation 0.1 mm, wind around 3 m/s, humidity around 67%.
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.
+18°C
Weather archive — latest year: 2025
Cloudy
Weather archive — latest year: 2025
Nighttime: +16°C
Precipitation: 0.2 mm
Wind: 1 — 2 m/s
Humidity: 75%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 6 h |
| UV index | 4 | Cloud cover (avg.) | 71% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 3 m/s | Wind direction (avg.) | 119° ↓ (SSW) |
Sunrise
07:40
Duration
10 h 59 min
Sunset
18:39
Moonrise
07:43
Moonset
18:28
Moon phase
New Moon
Illumination
0%
+17°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +14°C
Sea temperature: +22°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 11 h |
| UV index | 5 | Cloud cover (avg.) | 8% |
| Pressure (avg.) | 771 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +22°C |
| Feels like (avg.) | +16°C | Dew point (avg.) | +8°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +16°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 96° ↑ (N) |
Sunrise
07:40
Duration
10 h 59 min
Sunset
18:39
Moonrise
21:20
Moonset
12:13
Moon phase
Waning Gibbous
Illumination
71%
+22°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +18°C
Precipitation: 0 mm
Wind: 2 — 4 m/s
Humidity: 75%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +25°C | Sun hours | 11 h |
| UV index | 6 | Cloud cover (avg.) | 18% |
| Pressure (avg.) | 762 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.) | 6 m/s | Wind direction (avg.) | 146° ↓ (S) |
Sunrise
07:39
Duration
11 h 01 min
Sunset
18:40
Moonrise
14:17
Moonset
23:26
Moon phase
First Quarter
Illumination
44%
+17°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +14°C
Precipitation: 0 mm
Wind: 5 — 7 m/s
Humidity: 61%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 11 h |
| UV index | 5 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +10°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 13 m/s | Wind direction (avg.) | 96° ↑ (NNE) |
Sunrise
07:39
Duration
11 h 01 min
Sunset
18:40
Moonrise
03:35
Moonset
17:08
Moon phase
Waning Crescent
Illumination
18%
+18°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +14°C
Precipitation: 0 mm
Wind: 2 — 2 m/s
Humidity: 64%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +22°C | Sun hours | 11 h |
| UV index | 5 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 112° ↓ (SSW) |
Sunrise
07:40
Duration
10 h 59 min
Sunset
18:39
Moonrise
19:23
Moonset
08:23
Moon phase
Full Moon
Illumination
100%
+17°C
Weather archive — for 2020 year
Patchy rain nearby
Weather archive — for 2020 year
Nighttime: +16°C
Precipitation: 0.3 mm
Wind: 5 — 8 m/s
Humidity: 69%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 8 h |
| UV index | 5 | Cloud cover (avg.) | 31% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 16 m/s | Wind direction (avg.) | 294° → (ESE) |
Sunrise
07:40
Duration
10 h 59 min
Sunset
18:39
Moonrise
12:38
Moonset
22:15
Moon phase
Waxing Crescent
Illumination
27%
Weather in Piraeus on 21 October in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+20°C
|
+16°C
|
+18°C | 6 h | 4 | 75% | 1 — 2 m/s |
| 2024 |
+21°C
|
+14°C
|
+17°C | 11 h | 5 | 57% | 4 — 5 m/s |
| 2023 |
+25°C
|
+18°C
|
+22°C | 11 h | 6 | 75% | 2 — 4 m/s |
| 2022 |
+21°C
|
+14°C
|
+17°C | 11 h | 5 | 61% | 5 — 7 m/s |
| 2021 |
+22°C
|
+14°C
|
+18°C | 11 h | 5 | 64% | 2 — 2 m/s |
| 2020 |
+18°C
|
+16°C
|
+17°C | 8 h | 5 | 69% | 5 — 8 m/s |